Merge pull request #3381 from crazy-max/gha-validate

ci: github actions validate workflow

.circleci/config.yml

@@ -1,38 +0,0 @@
-version: 2
-
-jobs:
-
-  validate:
-    working_directory: /work
-    docker: [{image: 'docker:20.10-git'}]
-    environment:
-      DOCKER_BUILDKIT: 1
-    steps:
-      - checkout
-      - setup_remote_docker:
-          version: 20.10.6
-          reusable: true
-          exclusive: false
-      - run:
-          name: "Docker version"
-          command: docker version
-      - run:
-          name: "Docker info"
-          command: docker info
-      - run:
-          name: "Validate - build image"
-          command: |
-            rm -f .dockerignore # include .git
-            docker build --progress=plain -f dockerfiles/Dockerfile.dev --tag cli-builder-with-git:$CIRCLE_BUILD_NUM .
-      - run:
-          name: "Validate Vendor, Docs, and Code Generation"
-          command: |
-            docker run --rm cli-builder-with-git:$CIRCLE_BUILD_NUM \
-                make ci-validate
-          no_output_timeout: 15m
-
-workflows:
-  version: 2
-  ci:
-    jobs:
-      - validate

.dockerignore

@@ -2,8 +2,13 @@
 /cli/winresources/versioninfo.json
 /cli/winresources/*.syso
 /man/man*/
-/docs/yaml/gen/
+/man/vendor/
+/man/go.sum
+/docs/yaml/
+/docs/vendor/
+/docs/go.sum
 profile.out
 
 # top-level go.mod is not meant to be checked in
 /go.mod
+/go.sum

.github/workflows/validate.yml

@@ -20,6 +20,7 @@ jobs:
           - lint
           - shellcheck
           - validate-vendor
+          - update-authors # ensure authors update target runs fine
     steps:
       -
         name: Checkout
@@ -31,3 +32,23 @@ jobs:
         uses: docker/bake-action@v1
         with:
           targets: ${{ matrix.target }}
+
+  validate-make:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        target:
+          - yamldocs # ensure yamldocs target runs fine
+          - manpages # ensure manpages target runs fine
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      -
+        name: Run
+        shell: 'script --return --quiet --command "bash {0}"'
+        run: |
+          make -f docker.Makefile ${{ matrix.target }}

.gitignore

@@ -10,11 +10,8 @@ Thumbs.db
 /build/
 /cli/winresources/versioninfo.json
 /cli/winresources/*.syso
-/man/man1/
-/man/man5/
-/man/man8/
-/docs/yaml/gen/
 profile.out
 
 # top-level go.mod is not meant to be checked in
 /go.mod
+/go.sum

Makefile

@@ -11,7 +11,7 @@ _:=$(shell ./scripts/warn-outside-container $(MAKECMDGOALS))
 
 .PHONY: clean
 clean: ## remove build artifacts
-	rm -rf ./build/* cli/winresources/rsrc_* ./man/man[1-9] docs/yaml/gen
+	rm -rf ./build/* man/man[1-9] docs/yaml
 
 .PHONY: test
 test: test-unit ## run tests
@@ -77,8 +77,3 @@ yamldocs: ## generate documentation YAML files consumed by docs repo
 .PHONY: help
 help: ## print this help
 	@awk 'BEGIN {FS = ":.*?## "} /^[a-zA-Z0-9_-]+:.*?## / {gsub("\\\\n",sprintf("\n%22c",""), $$2);printf "\033[36m%-20s\033[0m %s\n", $$1, $$2}' $(MAKEFILE_LIST)
-
-.PHONY: ci-validate
-ci-validate:
-	time make manpages
-	time make yamldocs

README.md

@@ -1,9 +1,8 @@
 # Docker CLI
 
 [![PkgGoDev](https://img.shields.io/badge/go.dev-docs-007d9c?logo=go&logoColor=white)](https://pkg.go.dev/github.com/docker/cli)
-[![Build Status](https://img.shields.io/github/workflow/status/docker/cli/build?logo=github)](https://github.com/docker/cli/actions?query=workflow%3Abuild)
-[![Test Status](https://img.shields.io/github/workflow/status/docker/cli/test?logo=github)](https://github.com/docker/cli/actions?query=workflow%3Atest)
-[![CircleCI Status](https://img.shields.io/circleci/build/github/docker/cli/master?logo=circleci)](https://circleci.com/gh/docker/cli/tree/master)
+[![Build Status](https://img.shields.io/github/workflow/status/docker/cli/build?label=build&logo=github)](https://github.com/docker/cli/actions?query=workflow%3Abuild)
+[![Test Status](https://img.shields.io/github/workflow/status/docker/cli/test?label=test&logo=github)](https://github.com/docker/cli/actions?query=workflow%3Atest)
 [![Go Report Card](https://goreportcard.com/badge/github.com/docker/cli)](https://goreportcard.com/report/github.com/docker/cli)
 [![Codecov](https://codecov.io/gh/docker/cli/branch/master/graph/badge.svg)](https://codecov.io/gh/docker/cli)
 

docker-bake.hcl

@@ -1,3 +1,6 @@
+variable "GO_VERSION" {
+    default = "1.16.11"
+}
 variable "VERSION" {
     default = ""
 }
@@ -16,11 +19,19 @@ variable "COMPANY_NAME" {
     default = ""
 }
 
+target "_common" {
+    args = {
+        GO_VERSION = GO_VERSION
+        BUILDKIT_CONTEXT_KEEP_GIT_DIR = 1
+    }
+}
+
 group "default" {
     targets = ["binary"]
 }
 
 target "binary" {
+    inherits = ["_common"]
     target = "binary"
     platforms = ["local"]
     output = ["build"]
@@ -40,6 +51,7 @@ target "dynbinary" {
 }
 
 target "plugins" {
+    inherits = ["_common"]
     target = "plugins"
     platforms = ["local"]
     output = ["build"]
@@ -67,30 +79,35 @@ target "plugins-cross" {
 }
 
 target "lint" {
+    inherits = ["_common"]
     dockerfile = "./dockerfiles/Dockerfile.lint"
     target = "lint"
     output = ["type=cacheonly"]
 }
 
 target "shellcheck" {
+    inherits = ["_common"]
     dockerfile = "./dockerfiles/Dockerfile.shellcheck"
     target = "shellcheck"
     output = ["type=cacheonly"]
 }
 
 target "validate-vendor" {
+    inherits = ["_common"]
     dockerfile = "./dockerfiles/Dockerfile.vendor"
     target = "validate"
     output = ["type=cacheonly"]
 }
 
 target "update-vendor" {
+    inherits = ["_common"]
     dockerfile = "./dockerfiles/Dockerfile.vendor"
     target = "update"
     output = ["."]
 }
 
 target "mod-outdated" {
+    inherits = ["_common"]
     dockerfile = "./dockerfiles/Dockerfile.vendor"
     target = "outdated"
     args = {
@@ -100,6 +117,20 @@ target "mod-outdated" {
     output = ["type=cacheonly"]
 }
 
+target "validate-authors" {
+    inherits = ["_common"]
+    dockerfile = "./dockerfiles/Dockerfile.authors"
+    target = "validate"
+    output = ["type=cacheonly"]
+}
+
+target "update-authors" {
+    inherits = ["_common"]
+    dockerfile = "./dockerfiles/Dockerfile.authors"
+    target = "update"
+    output = ["."]
+}
+
 target "test" {
     target = "test"
     output = ["type=cacheonly"]

docker.Makefile

@@ -97,7 +97,7 @@ mod-outdated: ## check outdated dependencies
 
 .PHONY: authors
 authors: ## generate AUTHORS file from git history
-	$(DOCKER_RUN) -it $(DEV_DOCKER_IMAGE_NAME) make authors
+	docker buildx bake update-authors
 
 .PHONY: manpages
 manpages: build_docker_image ## generate man pages from go source and markdown

dockerfiles/Dockerfile.authors

@@ -0,0 +1,23 @@
+# syntax=docker/dockerfile:1.3-labs
+
+FROM alpine:3.14 AS gen
+RUN apk add --no-cache bash git
+WORKDIR /src
+RUN --mount=type=bind,target=. \
+  mkdir /out && ./scripts/docs/generate-authors.sh /out
+
+FROM scratch AS update
+COPY --from=gen /out /
+
+FROM gen AS validate
+RUN --mount=type=bind,target=.,rw <<EOT
+set -e
+git add -A
+cp -rf /out/* .
+diff=$(git status --porcelain -- AUTHORS)
+if [ -n "$diff" ]; then
+  echo >&2 'ERROR: Authors result differs. Please update with "make -f docker.Makefile authors"'
+  echo "$diff"
+  exit 1
+fi
+EOT

docs/.gitignore

@@ -0,0 +1,3 @@
+/vendor
+/yaml
+/go.sum

docs/README.md

@@ -28,3 +28,9 @@ the place to edit them.
 
 The docs in the general repo are open-source and we appreciate
 your feedback and pull requests!
+
+# Generate docs
+
+```shell
+$ make -f docker.Makefile yamldocs
+```

docs/generate.go

@@ -0,0 +1,67 @@
+// This file is intended for use with "go run"; it isn't really part of the package.
+
+// +build docsgen
+
+package main
+
+import (
+	"log"
+	"os"
+
+	clidocstool "github.com/docker/cli-docs-tool"
+	"github.com/docker/cli/cli/command"
+	"github.com/docker/cli/cli/command/commands"
+	"github.com/spf13/cobra"
+	"github.com/spf13/pflag"
+)
+
+const defaultSourcePath = "docs/reference/commandline/"
+
+type options struct {
+	source string
+	target string
+}
+
+func gen(opts *options) error {
+	log.SetFlags(0)
+
+	dockerCLI, err := command.NewDockerCli()
+	if err != nil {
+		return err
+	}
+	cmd := &cobra.Command{
+		Use:   "docker [OPTIONS] COMMAND [ARG...]",
+		Short: "The base command for the Docker CLI.",
+	}
+	commands.AddCommands(cmd, dockerCLI)
+
+	c, err := clidocstool.New(clidocstool.Options{
+		Root:      cmd,
+		SourceDir: opts.source,
+		TargetDir: opts.target,
+		Plugin:    false,
+	})
+	if err != nil {
+		return err
+	}
+
+	return c.GenYamlTree(cmd)
+}
+
+func run() error {
+	opts := &options{}
+	flags := pflag.NewFlagSet(os.Args[0], pflag.ContinueOnError)
+	flags.StringVar(&opts.source, "source", defaultSourcePath, "Docs source folder")
+	flags.StringVar(&opts.target, "target", defaultSourcePath, "Docs target folder")
+	if err := flags.Parse(os.Args[1:]); err != nil {
+		return err
+	}
+	return gen(opts)
+}
+
+func main() {
+	if err := run(); err != nil {
+		log.Printf("ERROR: %+v", err)
+		os.Exit(1)
+	}
+}

docs/go.mod

@@ -0,0 +1,13 @@
+module github.com/docker/cli/docs
+
+// dummy go.mod to avoid dealing with dependencies specific
+// to docs generation and not really part of the project.
+
+go 1.16
+
+//require (
+//	github.com/docker/cli v0.0.0+incompatible
+//	github.com/docker/cli-docs-tool v0.3.0
+//)
+//
+//replace github.com/docker/cli v0.0.0+incompatible => ../

docs/tools.go

@@ -0,0 +1,7 @@
+// +build tools
+
+package main
+
+import (
+	_ "github.com/docker/cli-docs-tool"
+)

docs/yaml/Dockerfile

@@ -1,4 +0,0 @@
-FROM scratch
-COPY docs /docs
-# CMD cannot be nil so we set it to empty string
-CMD  [""]

docs/yaml/generate.go

@@ -1,116 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"log"
-	"os"
-	"path/filepath"
-	"strings"
-
-	"github.com/docker/cli/cli/command"
-	"github.com/docker/cli/cli/command/commands"
-	"github.com/spf13/cobra"
-	"github.com/spf13/pflag"
-)
-
-const descriptionSourcePath = "docs/reference/commandline/"
-
-func generateCliYaml(opts *options) error {
-	dockerCLI, err := command.NewDockerCli()
-	if err != nil {
-		return err
-	}
-	cmd := &cobra.Command{
-		Use:   "docker [OPTIONS] COMMAND [ARG...]",
-		Short: "The base command for the Docker CLI.",
-	}
-	commands.AddCommands(cmd, dockerCLI)
-	disableFlagsInUseLine(cmd)
-	source := filepath.Join(opts.source, descriptionSourcePath)
-	fmt.Println("Markdown source:", source)
-	if err := loadLongDescription(cmd, source); err != nil {
-		return err
-	}
-
-	if err := os.MkdirAll(opts.target, 0755); err != nil {
-		return err
-	}
-
-	cmd.DisableAutoGenTag = true
-	return GenYamlTree(cmd, opts.target)
-}
-
-func disableFlagsInUseLine(cmd *cobra.Command) {
-	visitAll(cmd, func(ccmd *cobra.Command) {
-		// do not add a `[flags]` to the end of the usage line.
-		ccmd.DisableFlagsInUseLine = true
-	})
-}
-
-// visitAll will traverse all commands from the root.
-// This is different from the VisitAll of cobra.Command where only parents
-// are checked.
-func visitAll(root *cobra.Command, fn func(*cobra.Command)) {
-	for _, cmd := range root.Commands() {
-		visitAll(cmd, fn)
-	}
-	fn(root)
-}
-
-func loadLongDescription(parentCmd *cobra.Command, path string) error {
-	for _, cmd := range parentCmd.Commands() {
-		if cmd.HasSubCommands() {
-			if err := loadLongDescription(cmd, path); err != nil {
-				return err
-			}
-		}
-		name := cmd.CommandPath()
-		log.Println("INFO: Generating docs for", name)
-		if i := strings.Index(name, " "); i >= 0 {
-			// remove root command / binary name
-			name = name[i+1:]
-		}
-		if name == "" {
-			continue
-		}
-		mdFile := strings.ReplaceAll(name, " ", "_") + ".md"
-		fullPath := filepath.Join(path, mdFile)
-		content, err := os.ReadFile(fullPath)
-		if os.IsNotExist(err) {
-			log.Printf("WARN: %s does not exist, skipping\n", mdFile)
-			continue
-		}
-		if err != nil {
-			return err
-		}
-		applyDescriptionAndExamples(cmd, string(content))
-	}
-	return nil
-}
-
-type options struct {
-	source string
-	target string
-}
-
-func parseArgs() (*options, error) {
-	opts := &options{}
-	cwd, _ := os.Getwd()
-	flags := pflag.NewFlagSet(os.Args[0], pflag.ContinueOnError)
-	flags.StringVar(&opts.source, "root", cwd, "Path to project root")
-	flags.StringVar(&opts.target, "target", "/tmp", "Target path for generated yaml files")
-	err := flags.Parse(os.Args[1:])
-	return opts, err
-}
-
-func main() {
-	opts, err := parseArgs()
-	if err != nil {
-		log.Println(err)
-	}
-	fmt.Println("Project root:   ", opts.source)
-	fmt.Println("YAML output dir:", opts.target)
-	if err := generateCliYaml(opts); err != nil {
-		log.Println("Failed to generate yaml files:", err)
-	}
-}

docs/yaml/markdown.go

@@ -1,73 +0,0 @@
-package main
-
-import (
-	"regexp"
-	"strings"
-	"unicode"
-)
-
-var (
-	// mdHeading matches MarkDown H1..h6 headings. Note that this regex may produce
-	// false positives for (e.g.) comments in code-blocks (# this is a comment),
-	// so should not be used as a generic regex for other purposes.
-	mdHeading = regexp.MustCompile(`^([#]{1,6})\s(.*)$`)
-	// htmlAnchor matches inline HTML anchors. This is intended to only match anchors
-	// for our use-case; DO NOT consider using this as a generic regex, or at least
-	// not before reading https://stackoverflow.com/a/1732454/1811501.
-	htmlAnchor = regexp.MustCompile(`<a\s+(?:name|id)="?([^"]+)"?\s*></a>\s*`)
-)
-
-// getSections returns all H2 sections by title (lowercase)
-func getSections(mdString string) map[string]string {
-	parsedContent := strings.Split("\n"+mdString, "\n## ")
-	sections := make(map[string]string, len(parsedContent))
-	for _, s := range parsedContent {
-		if strings.HasPrefix(s, "#") {
-			// not a H2 Section
-			continue
-		}
-		parts := strings.SplitN(s, "\n", 2)
-		if len(parts) == 2 {
-			sections[strings.ToLower(parts[0])] = parts[1]
-		}
-	}
-	return sections
-}
-
-// cleanupMarkDown cleans up the MarkDown passed in mdString for inclusion in
-// YAML. It removes trailing whitespace and substitutes tabs for four spaces
-// to prevent YAML switching to use "compact" form; ("line1  \nline\t2\n")
-// which, although equivalent, is hard to read.
-func cleanupMarkDown(mdString string) (md string, anchors []string) {
-	// remove leading/trailing whitespace, and replace tabs in the whole content
-	mdString = strings.TrimSpace(mdString)
-	mdString = strings.ReplaceAll(mdString, "\t", "    ")
-	mdString = strings.ReplaceAll(mdString, "https://docs.docker.com", "")
-
-	var id string
-	// replace trailing whitespace per line, and handle custom anchors
-	lines := strings.Split(mdString, "\n")
-	for i := 0; i < len(lines); i++ {
-		lines[i] = strings.TrimRightFunc(lines[i], unicode.IsSpace)
-		lines[i], id = convertHTMLAnchor(lines[i])
-		if id != "" {
-			anchors = append(anchors, id)
-		}
-	}
-	return strings.Join(lines, "\n"), anchors
-}
-
-// convertHTMLAnchor converts inline anchor-tags in headings (<a name=myanchor></a>)
-// to an extended-markdown property ({#myanchor}). Extended Markdown properties
-// are not supported in GitHub Flavored Markdown, but are supported by Jekyll,
-// and lead to cleaner HTML in our docs, and prevents duplicate anchors.
-// It returns the converted MarkDown heading and the custom ID (if present)
-func convertHTMLAnchor(mdLine string) (md string, customID string) {
-	if m := mdHeading.FindStringSubmatch(mdLine); len(m) > 0 {
-		if a := htmlAnchor.FindStringSubmatch(m[2]); len(a) > 0 {
-			customID = a[1]
-			mdLine = m[1] + " " + htmlAnchor.ReplaceAllString(m[2], "") + " {#" + customID + "}"
-		}
-	}
-	return mdLine, customID
-}

docs/yaml/markdown_test.go

@@ -1,132 +0,0 @@
-package main
-
-import "testing"
-
-func TestCleanupMarkDown(t *testing.T) {
-	tests := []struct {
-		doc, in, expected string
-	}{
-		{
-			doc: "whitespace around sections",
-			in: `
-
-	## Section start
-
-Some lines.
-And more lines.
-
-`,
-			expected: `## Section start
-
-Some lines.
-And more lines.`,
-		},
-		{
-			doc: "lines with inline tabs",
-			in: `## Some	Heading
-
-A line with tabs		in it.
-Tabs	should be replaced by spaces`,
-			expected: `## Some    Heading
-
-A line with tabs        in it.
-Tabs    should be replaced by spaces`,
-		},
-		{
-			doc: "lines with trailing spaces",
-			in: `## Some Heading with spaces                  
-       
-This is a line.              
-    This is an indented line        
-
-### Some other heading         
-
-Last line.`,
-			expected: `## Some Heading with spaces
-
-This is a line.
-    This is an indented line
-
-### Some other heading
-
-Last line.`,
-		},
-		{
-			doc: "lines with trailing tabs",
-			in: `## Some Heading with tabs				
-		
-This is a line.		
-	This is an indented line		
-
-### Some other heading 	
-
-Last line.`,
-			expected: `## Some Heading with tabs
-
-This is a line.
-    This is an indented line
-
-### Some other heading
-
-Last line.`,
-		},
-	}
-	for _, tc := range tests {
-		tc := tc
-		t.Run(tc.doc, func(t *testing.T) {
-			out, _ := cleanupMarkDown(tc.in)
-			if out != tc.expected {
-				t.Fatalf("\nexpected:\n%q\nactual:\n%q\n", tc.expected, out)
-			}
-		})
-	}
-}
-
-func TestConvertHTMLAnchor(t *testing.T) {
-	tests := []struct {
-		in, id, expected string
-	}{
-		{
-			in:       `# <a name=heading1></a> Heading 1`,
-			id:       "heading1",
-			expected: `# Heading 1 {#heading1}`,
-		},
-		{
-			in:       `## Heading 2<a name=heading2></a> `,
-			id:       "heading2",
-			expected: `## Heading 2 {#heading2}`,
-		},
-		{
-			in:       `### <a id=heading3></a>Heading 3`,
-			id:       "heading3",
-			expected: `### Heading 3 {#heading3}`,
-		},
-		{
-			in:       `#### <a id="heading4"></a> Heading 4`,
-			id:       "heading4",
-			expected: `#### Heading 4 {#heading4}`,
-		},
-		{
-			in:       `##### <a   id="heading5"  ></a>  Heading 5`,
-			id:       "heading5",
-			expected: `##### Heading 5 {#heading5}`,
-		},
-		{
-			in:       `###### <a id=hello href=foo>hello!</a>Heading 6`,
-			id:       "",
-			expected: `###### <a id=hello href=foo>hello!</a>Heading 6`,
-		},
-	}
-	for _, tc := range tests {
-		tc := tc
-		t.Run(tc.in, func(t *testing.T) {
-			out, id := convertHTMLAnchor(tc.in)
-			if id != tc.id {
-				t.Fatalf("expected: %s, actual:   %s\n", tc.id, id)
-			}
-			if out != tc.expected {
-				t.Fatalf("\nexpected: %s\nactual:   %s\n", tc.expected, out)
-			}
-		})
-	}
-}

docs/yaml/yaml.go

@@ -1,347 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"io"
-	"os"
-	"path/filepath"
-	"sort"
-	"strings"
-
-	"github.com/spf13/cobra"
-	"github.com/spf13/pflag"
-	yaml "gopkg.in/yaml.v2"
-)
-
-type cmdOption struct {
-	Option          string
-	Shorthand       string `yaml:",omitempty"`
-	ValueType       string `yaml:"value_type,omitempty"`
-	DefaultValue    string `yaml:"default_value,omitempty"`
-	Description     string `yaml:",omitempty"`
-	DetailsURL      string `yaml:"details_url,omitempty"` // DetailsURL contains an anchor-id or link for more information on this flag
-	Deprecated      bool
-	MinAPIVersion   string `yaml:"min_api_version,omitempty"`
-	Experimental    bool
-	ExperimentalCLI bool
-	Kubernetes      bool
-	Swarm           bool
-	OSType          string `yaml:"os_type,omitempty"`
-}
-
-type cmdDoc struct {
-	Name             string      `yaml:"command"`
-	SeeAlso          []string    `yaml:"parent,omitempty"`
-	Version          string      `yaml:"engine_version,omitempty"`
-	Aliases          string      `yaml:",omitempty"`
-	Short            string      `yaml:",omitempty"`
-	Long             string      `yaml:",omitempty"`
-	Usage            string      `yaml:",omitempty"`
-	Pname            string      `yaml:",omitempty"`
-	Plink            string      `yaml:",omitempty"`
-	Cname            []string    `yaml:",omitempty"`
-	Clink            []string    `yaml:",omitempty"`
-	Options          []cmdOption `yaml:",omitempty"`
-	InheritedOptions []cmdOption `yaml:"inherited_options,omitempty"`
-	Example          string      `yaml:"examples,omitempty"`
-	Deprecated       bool
-	MinAPIVersion    string `yaml:"min_api_version,omitempty"`
-	Experimental     bool
-	ExperimentalCLI  bool
-	Kubernetes       bool
-	Swarm            bool
-	OSType           string `yaml:"os_type,omitempty"`
-}
-
-// GenYamlTree creates yaml structured ref files
-func GenYamlTree(cmd *cobra.Command, dir string) error {
-	emptyStr := func(s string) string { return "" }
-	return GenYamlTreeCustom(cmd, dir, emptyStr)
-}
-
-// GenYamlTreeCustom creates yaml structured ref files
-func GenYamlTreeCustom(cmd *cobra.Command, dir string, filePrepender func(string) string) error {
-	for _, c := range cmd.Commands() {
-		if !c.Runnable() && !c.HasAvailableSubCommands() {
-			// skip non-runnable commands without subcommands
-			// but *do* generate YAML for hidden and deprecated commands
-			// the YAML will have those included as metadata, so that the
-			// documentation repository can decide whether or not to present them
-			continue
-		}
-		if err := GenYamlTreeCustom(c, dir, filePrepender); err != nil {
-			return err
-		}
-	}
-
-	// TODO: conditionally skip the root command (for plugins)
-	//
-	// The "root" command used in the generator is just a "stub", and only has a
-	// list of subcommands, but not (e.g.) global options/flags. We should fix
-	// that, so that the YAML file for the docker "root" command contains the
-	// global flags.
-	//
-	// If we're using this code to generate YAML docs for a plugin, the root-
-	// command is even less useful; in that case, the root command represents
-	// the "docker" command, and is a "dummy" with no flags, and only a single
-	// subcommand (the plugin's top command). For plugins, we should skip the
-	// root command altogether, to prevent generating a useless YAML file.
-	// if !cmd.HasParent() {
-	// 	return nil
-	// }
-
-	basename := strings.Replace(cmd.CommandPath(), " ", "_", -1) + ".yaml"
-	filename := filepath.Join(dir, basename)
-	f, err := os.Create(filename)
-	if err != nil {
-		return err
-	}
-	defer f.Close()
-
-	if _, err := io.WriteString(f, filePrepender(filename)); err != nil {
-		return err
-	}
-	return GenYamlCustom(cmd, f)
-}
-
-// GenYamlCustom creates custom yaml output
-// nolint: gocyclo
-func GenYamlCustom(cmd *cobra.Command, w io.Writer) error {
-	const (
-		// shortMaxWidth is the maximum width for the "Short" description before
-		// we force YAML to use multi-line syntax. The goal is to make the total
-		// width fit within 80 characters. This value is based on 80 characters
-		// minus the with of the field, colon, and whitespace ('short: ').
-		shortMaxWidth = 73
-
-		// longMaxWidth is the maximum width for the "Short" description before
-		// we force YAML to use multi-line syntax. The goal is to make the total
-		// width fit within 80 characters. This value is based on 80 characters
-		// minus the with of the field, colon, and whitespace ('long: ').
-		longMaxWidth = 74
-	)
-
-	cliDoc := cmdDoc{
-		Name:       cmd.CommandPath(),
-		Aliases:    strings.Join(cmd.Aliases, ", "),
-		Short:      forceMultiLine(cmd.Short, shortMaxWidth),
-		Long:       forceMultiLine(cmd.Long, longMaxWidth),
-		Example:    cmd.Example,
-		Deprecated: len(cmd.Deprecated) > 0,
-	}
-
-	if len(cliDoc.Long) == 0 {
-		cliDoc.Long = cliDoc.Short
-	}
-
-	if cmd.Runnable() {
-		cliDoc.Usage = cmd.UseLine()
-	}
-
-	// Check recursively so that, e.g., `docker stack ls` returns the same output as `docker stack`
-	for curr := cmd; curr != nil; curr = curr.Parent() {
-		if v, ok := curr.Annotations["version"]; ok && cliDoc.MinAPIVersion == "" {
-			cliDoc.MinAPIVersion = v
-		}
-		if _, ok := curr.Annotations["experimental"]; ok && !cliDoc.Experimental {
-			cliDoc.Experimental = true
-		}
-		if _, ok := curr.Annotations["experimentalCLI"]; ok && !cliDoc.ExperimentalCLI {
-			cliDoc.ExperimentalCLI = true
-		}
-		if _, ok := curr.Annotations["kubernetes"]; ok && !cliDoc.Kubernetes {
-			cliDoc.Kubernetes = true
-		}
-		if _, ok := curr.Annotations["swarm"]; ok && !cliDoc.Swarm {
-			cliDoc.Swarm = true
-		}
-		if o, ok := curr.Annotations["ostype"]; ok && cliDoc.OSType == "" {
-			cliDoc.OSType = o
-		}
-	}
-
-	anchors := make(map[string]struct{})
-	if a, ok := cmd.Annotations["anchors"]; ok && a != "" {
-		for _, anchor := range strings.Split(a, ",") {
-			anchors[anchor] = struct{}{}
-		}
-	}
-
-	flags := cmd.NonInheritedFlags()
-	if flags.HasFlags() {
-		cliDoc.Options = genFlagResult(flags, anchors)
-	}
-	flags = cmd.InheritedFlags()
-	if flags.HasFlags() {
-		cliDoc.InheritedOptions = genFlagResult(flags, anchors)
-	}
-
-	if hasSeeAlso(cmd) {
-		if cmd.HasParent() {
-			parent := cmd.Parent()
-			cliDoc.Pname = parent.CommandPath()
-			cliDoc.Plink = strings.Replace(cliDoc.Pname, " ", "_", -1) + ".yaml"
-			cmd.VisitParents(func(c *cobra.Command) {
-				if c.DisableAutoGenTag {
-					cmd.DisableAutoGenTag = c.DisableAutoGenTag
-				}
-			})
-		}
-
-		children := cmd.Commands()
-		sort.Sort(byName(children))
-
-		for _, child := range children {
-			if !child.IsAvailableCommand() || child.IsAdditionalHelpTopicCommand() {
-				continue
-			}
-			cliDoc.Cname = append(cliDoc.Cname, cliDoc.Name+" "+child.Name())
-			cliDoc.Clink = append(cliDoc.Clink, strings.Replace(cliDoc.Name+"_"+child.Name(), " ", "_", -1)+".yaml")
-		}
-	}
-
-	final, err := yaml.Marshal(&cliDoc)
-	if err != nil {
-		fmt.Println(err)
-		os.Exit(1)
-	}
-	if _, err := fmt.Fprintln(w, string(final)); err != nil {
-		return err
-	}
-	return nil
-}
-
-func genFlagResult(flags *pflag.FlagSet, anchors map[string]struct{}) []cmdOption {
-	var (
-		result []cmdOption
-		opt    cmdOption
-	)
-
-	const (
-		// shortMaxWidth is the maximum width for the "Short" description before
-		// we force YAML to use multi-line syntax. The goal is to make the total
-		// width fit within 80 characters. This value is based on 80 characters
-		// minus the with of the field, colon, and whitespace ('  default_value: ').
-		defaultValueMaxWidth = 64
-
-		// longMaxWidth is the maximum width for the "Short" description before
-		// we force YAML to use multi-line syntax. The goal is to make the total
-		// width fit within 80 characters. This value is based on 80 characters
-		// minus the with of the field, colon, and whitespace ('  description: ').
-		descriptionMaxWidth = 66
-	)
-
-	flags.VisitAll(func(flag *pflag.Flag) {
-		opt = cmdOption{
-			Option:       flag.Name,
-			ValueType:    flag.Value.Type(),
-			DefaultValue: forceMultiLine(flag.DefValue, defaultValueMaxWidth),
-			Description:  forceMultiLine(flag.Usage, descriptionMaxWidth),
-			Deprecated:   len(flag.Deprecated) > 0,
-		}
-
-		if v, ok := flag.Annotations["docs.external.url"]; ok && len(v) > 0 {
-			opt.DetailsURL = strings.TrimPrefix(v[0], "https://docs.docker.com")
-		} else if _, ok = anchors[flag.Name]; ok {
-			opt.DetailsURL = "#" + flag.Name
-		}
-
-		// Todo, when we mark a shorthand is deprecated, but specify an empty message.
-		// The flag.ShorthandDeprecated is empty as the shorthand is deprecated.
-		// Using len(flag.ShorthandDeprecated) > 0 can't handle this, others are ok.
-		if !(len(flag.ShorthandDeprecated) > 0) && len(flag.Shorthand) > 0 {
-			opt.Shorthand = flag.Shorthand
-		}
-		if _, ok := flag.Annotations["experimental"]; ok {
-			opt.Experimental = true
-		}
-		if _, ok := flag.Annotations["deprecated"]; ok {
-			opt.Deprecated = true
-		}
-		if v, ok := flag.Annotations["version"]; ok {
-			opt.MinAPIVersion = v[0]
-		}
-		if _, ok := flag.Annotations["experimentalCLI"]; ok {
-			opt.ExperimentalCLI = true
-		}
-		if _, ok := flag.Annotations["kubernetes"]; ok {
-			opt.Kubernetes = true
-		}
-		if _, ok := flag.Annotations["swarm"]; ok {
-			opt.Swarm = true
-		}
-
-		// Note that the annotation can have multiple ostypes set, however, multiple
-		// values are currently not used (and unlikely will).
-		//
-		// To simplify usage of the os_type property in the YAML, and for consistency
-		// with the same property for commands, we're only using the first ostype that's set.
-		if ostypes, ok := flag.Annotations["ostype"]; ok && len(opt.OSType) == 0 && len(ostypes) > 0 {
-			opt.OSType = ostypes[0]
-		}
-
-		result = append(result, opt)
-	})
-
-	return result
-}
-
-// forceMultiLine appends a newline (\n) to strings that are longer than max
-// to force the yaml lib to use block notation (https://yaml.org/spec/1.2/spec.html#Block)
-// instead of a single-line string with newlines and tabs encoded("string\nline1\nline2").
-//
-// This makes the generated YAML more readable, and easier to review changes.
-// max can be used to customize the width to keep the whole line < 80 chars.
-func forceMultiLine(s string, max int) string {
-	s = strings.TrimSpace(s)
-	if len(s) > max && !strings.Contains(s, "\n") {
-		s = s + "\n"
-	}
-	return s
-}
-
-// Small duplication for cobra utils
-func hasSeeAlso(cmd *cobra.Command) bool {
-	if cmd.HasParent() {
-		return true
-	}
-	for _, c := range cmd.Commands() {
-		if !c.IsAvailableCommand() || c.IsAdditionalHelpTopicCommand() {
-			continue
-		}
-		return true
-	}
-	return false
-}
-
-// applyDescriptionAndExamples fills in cmd.Long and cmd.Example with the
-// "Description" and "Examples" H2 sections in  mdString (if present).
-func applyDescriptionAndExamples(cmd *cobra.Command, mdString string) {
-	sections := getSections(mdString)
-	var (
-		anchors []string
-		md      string
-	)
-	if sections["description"] != "" {
-		md, anchors = cleanupMarkDown(sections["description"])
-		cmd.Long = md
-		anchors = append(anchors, md)
-	}
-	if sections["examples"] != "" {
-		md, anchors = cleanupMarkDown(sections["examples"])
-		cmd.Example = md
-		anchors = append(anchors, md)
-	}
-	if len(anchors) > 0 {
-		if cmd.Annotations == nil {
-			cmd.Annotations = make(map[string]string)
-		}
-		cmd.Annotations["anchors"] = strings.Join(anchors, ",")
-	}
-}
-
-type byName []*cobra.Command
-
-func (s byName) Len() int           { return len(s) }
-func (s byName) Swap(i, j int)      { s[i], s[j] = s[j], s[i] }
-func (s byName) Less(i, j int) bool { return s[i].Name() < s[j].Name() }

man/.gitignore

@@ -0,0 +1,3 @@
+/vendor
+/man*
+/go.sum

man/README.md

@@ -12,4 +12,6 @@ Cobra command or amend the Markdown files for legacy pages.
 
 From within the project root directory run:
 
-    make manpages
+```shell
+$ make -f docker.Makefile manpages
+```

man/generate.go

@@ -1,3 +1,7 @@
+// This file is intended for use with "go run"; it isn't really part of the package.
+
+// +build manpages
+
 package main
 
 import (
@@ -18,6 +22,8 @@ import (
 const descriptionSourcePath = "man/src/"
 
 func generateManPages(opts *options) error {
+	log.SetFlags(0)
+
 	header := &doc.GenManHeader{
 		Title:   "DOCKER",
 		Section: "1",
@@ -73,6 +79,7 @@ func loadLongDescription(cmd *cobra.Command, path string) error {
 			continue
 		}
 
+		log.Printf("INFO: %s found\n", fullpath)
 		content, err := os.ReadFile(fullpath)
 		if err != nil {
 			return err

man/go.mod

@@ -0,0 +1,15 @@
+module github.com/docker/cli/man
+
+// dummy go.mod to avoid dealing with dependencies specific
+// to manpages generation and not really part of the project.
+
+go 1.16
+
+//require (
+//	github.com/docker/cli v0.0.0+incompatible
+//	github.com/cpuguy83/go-md2man/v2 v2.0.1
+//	github.com/spf13/cobra v1.2.1
+//	github.com/spf13/pflag v1.0.5
+//)
+//
+//replace github.com/docker/cli v0.0.0+incompatible => ../

man/import.go

@@ -1,7 +0,0 @@
-// +build never
-
-package main
-
-// Not used, but required for generating other man pages.
-// Import it here so that the package is included by go modules.
-import _ "github.com/cpuguy83/go-md2man/v2"

man/md2man-all.sh

@@ -1,22 +0,0 @@
-#!/usr/bin/env bash
-set -e
-
-# get into this script's directory
-cd "$(dirname "$(readlink -f "$BASH_SOURCE")")"
-
-[ "$1" = '-q' ] || {
-	set -x
-	pwd
-}
-
-for FILE in *.md; do
-	base="$(basename "$FILE")"
-	name="${base%.md}"
-	num="${name##*.}"
-	if [ -z "$num" -o "$name" = "$num" ]; then
-		# skip files that aren't of the format xxxx.N.md (like README.md)
-		continue
-	fi
-	mkdir -p "./man${num}"
-	go-md2man -in "$FILE" -out "./man${num}/${name}"
-done

man/tools.go

@@ -0,0 +1,10 @@
+// +build tools
+
+package main
+
+import (
+	_ "github.com/cpuguy83/go-md2man/v2"
+	_ "github.com/spf13/cobra"
+	_ "github.com/spf13/cobra/doc"
+	_ "github.com/spf13/pflag"
+)

scripts/docs/generate-authors.sh

@@ -1,10 +1,8 @@
 #!/usr/bin/env bash
 set -e
 
-cd "$(dirname "$(readlink -f "${BASH_SOURCE[*]}")")/../.."
-
 # see also ".mailmap" for how email addresses and names are deduplicated
-
+OUT="${1:-.}"
 {
 	cat <<-'EOH'
 	# This file lists all individuals having contributed content to the repository.
@@ -12,4 +10,5 @@ cd "$(dirname "$(readlink -f "${BASH_SOURCE[*]}")")/../.."
 	EOH
 	echo
 	git log --format='%aN <%aE>' | LC_ALL=C.UTF-8 sort -uf
-} > AUTHORS
+} > "$OUT/AUTHORS"
+cat "$OUT/AUTHORS"

scripts/docs/generate-man.sh

@@ -1,17 +1,50 @@
 #!/usr/bin/env bash
-# Generate man pages for docker/cli
-set -eu -o pipefail
 
-mkdir -p ./man/man1
+set -eu
 
-if ! command -v go-md2man &> /dev/null; then
-	# yay, go install creates a binary named "v2" ¯\_(ツ)_/¯
-	go build -o "/go/bin/go-md2man" ./vendor/github.com/cpuguy83/go-md2man/v2
+: "${MD2MAN_VERSION=v2.0.1}"
+
+export GO111MODULE=auto
+
+function clean {
+  rm -rf "$buildir"
+}
+
+buildir=$(mktemp -d -t docker-cli-docsgen.XXXXXXXXXX)
+trap clean EXIT
+
+(
+  set -x
+  cp -r . "$buildir/"
+  cd "$buildir"
+  # init dummy go.mod
+  ./scripts/vendor init
+  # install go-md2man and copy man/tools.go in root folder
+  # to be able to fetch the required dependencies
+  go mod edit -modfile=vendor.mod -require=github.com/cpuguy83/go-md2man/v2@${MD2MAN_VERSION}
+  cp man/tools.go .
+  # update vendor
+  ./scripts/vendor update
+  # build gen-manpages
+  go build -mod=vendor -modfile=vendor.mod -tags manpages -o /tmp/gen-manpages ./man/generate.go
+  # build go-md2man
+  go build -mod=vendor -modfile=vendor.mod -o /tmp/go-md2man ./vendor/github.com/cpuguy83/go-md2man/v2
+)
+
+mkdir -p man/man1
+(set -x ; /tmp/gen-manpages --root "." --target "$(pwd)/man/man1")
+
+(
+  cd man
+  for FILE in *.md; do
+    base="$(basename "$FILE")"
+    name="${base%.md}"
+    num="${name##*.}"
+    if [ -z "$num" ] || [ "$name" = "$num" ]; then
+      # skip files that aren't of the format xxxx.N.md (like README.md)
+      continue
     fi
-
-# Generate man pages from cobra commands
-go build -o /tmp/gen-manpages github.com/docker/cli/man
-/tmp/gen-manpages --root "$(pwd)" --target "$(pwd)/man/man1"
-
-# Generate legacy pages from markdown
-./man/md2man-all.sh -q
+    mkdir -p "./man${num}"
+    (set -x ; /tmp/go-md2man -in "$FILE" -out "./man${num}/${name}")
+  done
+)

scripts/docs/generate-yaml.sh

@@ -1,8 +1,34 @@
 #!/usr/bin/env bash
-# Generate yaml for docker/cli reference docs
-set -eu -o pipefail
 
-mkdir -p docs/yaml/gen
+set -eu
 
-GO111MODULE=off go build -o build/yaml-docs-generator github.com/docker/cli/docs/yaml
-build/yaml-docs-generator --root "$(pwd)" --target "$(pwd)/docs/yaml/gen"
+: "${CLI_DOCS_TOOL_VERSION=v0.3.1}"
+
+export GO111MODULE=auto
+
+function clean {
+  rm -rf "$buildir"
+}
+
+buildir=$(mktemp -d -t docker-cli-docsgen.XXXXXXXXXX)
+trap clean EXIT
+
+(
+  set -x
+  cp -r . "$buildir/"
+  cd "$buildir"
+  # init dummy go.mod
+  ./scripts/vendor init
+  # install cli-docs-tool and copy docs/tools.go in root folder
+  # to be able to fetch the required depedencies
+  go mod edit -modfile=vendor.mod -require=github.com/docker/cli-docs-tool@${CLI_DOCS_TOOL_VERSION}
+  cp docs/tools.go .
+  # update vendor
+  ./scripts/vendor update
+  # build docsgen
+  go build -mod=vendor -modfile=vendor.mod -tags docsgen -o /tmp/docsgen ./docs/generate.go
+)
+
+mkdir -p docs/yaml
+set -x
+/tmp/docsgen --source "$(pwd)/docs/reference/commandline" --target "$(pwd)/docs/yaml"

scripts/vendor

@@ -5,7 +5,7 @@ set -eu
 TYP=$1
 
 usage() {
-  echo "usage: ./scripts/vendor <update|validate|outdated>"
+  echo "usage: ./scripts/vendor <init|update|validate|outdated>"
   exit 1
 }
 
@@ -13,12 +13,14 @@ if [ -z "$TYP" ]; then
   usage
 fi
 
+init() {
   # create dummy go.mod, see comment in vendor.mod
   cat > go.mod <<EOL
 module github.com/docker/cli
 
 go 1.16
 EOL
+}
 
 update() {
   (set -x ; go mod tidy -modfile=vendor.mod; go mod vendor -modfile=vendor.mod)
@@ -42,14 +44,20 @@ outdated() {
 }
 
 case $TYP in
+  "init")
+    init
+    ;;
   "update")
+    init
     update
     ;;
   "validate")
+    init
     update
     validate
     ;;
   "outdated")
+    init
     outdated
     ;;
   *)

vendor.mod

@@ -10,7 +10,6 @@ require (
 	github.com/Microsoft/go-winio v0.4.19 // indirect
 	github.com/containerd/containerd v1.5.5
 	github.com/coreos/etcd v3.3.25+incompatible // indirect
-	github.com/cpuguy83/go-md2man/v2 v2.0.1
 	github.com/creack/pty v1.1.11
 	github.com/docker/distribution v2.7.1+incompatible
 	github.com/docker/docker v20.10.7+incompatible

vendor.sum

@@ -193,8 +193,6 @@ github.com/coreos/pkg v0.0.0-20160727233714-3ac0863d7acf/go.mod h1:E3G3o1h8I7cfc
 github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f/go.mod h1:E3G3o1h8I7cfcXa63jLwjI0eiQQMgzzUDFVpN/nH/eA=
 github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
 github.com/cpuguy83/go-md2man/v2 v2.0.0/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
-github.com/cpuguy83/go-md2man/v2 v2.0.1 h1:r/myEWzV9lfsM1tFLgDyu0atFtJ1fXn261LKYj/3DxU=
-github.com/cpuguy83/go-md2man/v2 v2.0.1/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
 github.com/creack/pty v1.1.7/go.mod h1:lj5s0c3V2DBrqTV7llrYr5NG6My20zk30Fl46Y7DoTY=
 github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/creack/pty v1.1.11 h1:07n33Z8lZxZ2qwegKbObQohDhXDQxiMMz1NOUGYlesw=
@@ -555,8 +553,6 @@ github.com/prometheus/procfs v0.0.11/go.mod h1:lV6e/gmhEcM9IjHGsFOCxxuZ+z1YqCvr4
 github.com/rogpeppe/fastuuid v0.0.0-20150106093220-6724a57986af/go.mod h1:XWv6SoW27p1b0cqNHllgS5HIMJraePCO15w5zCzIWYg=
 github.com/rs/xid v1.2.1/go.mod h1:+uKXf+4Djp6Md1KODXJxgGQPKngRmWyn10oCKFzNHOQ=
 github.com/russross/blackfriday/v2 v2.0.1/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
-github.com/russross/blackfriday/v2 v2.1.0 h1:JIOH55/0cWyOuilr9/qlrm0BSXldqnqwMsf35Ld67mk=
-github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
 github.com/ryanuber/columnize v0.0.0-20160712163229-9b3edd62028f/go.mod h1:sm1tb6uqfes/u+d4ooFouqFdy9/2g9QGwK3SQygK0Ts=
 github.com/safchain/ethtool v0.0.0-20190326074333-42ed695e3de8/go.mod h1:Z0q5wiBQGYcxhMZ6gUqHn6pYNLypFAvaL3UvgZLR0U4=
 github.com/satori/go.uuid v1.2.0/go.mod h1:dA0hQrYB0VpLJoorglMZABFdXlWrHn1NEOzdhQKdks0=

vendor/github.com/cpuguy83/go-md2man/v2/.gitignore

@@ -1,2 +0,0 @@
-go-md2man
-bin

vendor/github.com/cpuguy83/go-md2man/v2/Dockerfile

@@ -1,8 +0,0 @@
-FROM golang:1.8 AS build
-COPY . /go/src/github.com/cpuguy83/go-md2man
-WORKDIR /go/src/github.com/cpuguy83/go-md2man
-RUN CGO_ENABLED=0 go build
-
-FROM scratch
-COPY --from=build /go/src/github.com/cpuguy83/go-md2man/go-md2man /go-md2man
-ENTRYPOINT ["/go-md2man"]

vendor/github.com/cpuguy83/go-md2man/v2/LICENSE.md

@@ -1,21 +0,0 @@
-The MIT License (MIT)
-
-Copyright (c) 2014 Brian Goff
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.

vendor/github.com/cpuguy83/go-md2man/v2/Makefile

@@ -1,35 +0,0 @@
-GO111MODULE ?= on
-LINTER_BIN ?= golangci-lint
-
-export GO111MODULE
-
-.PHONY:
-build: bin/go-md2man
-
-.PHONY: clean
-clean:
-	@rm -rf bin/*
-
-.PHONY: test
-test:
-	@go test $(TEST_FLAGS) ./...
-
-bin/go-md2man: actual_build_flags := $(BUILD_FLAGS) -o bin/go-md2man
-bin/go-md2man: bin
-	@CGO_ENABLED=0 go build $(actual_build_flags)
-
-bin:
-	@mkdir ./bin
-
-.PHONY: mod
-mod:
-	@go mod tidy
-
-.PHONY: check-mod
-check-mod: # verifies that module changes for go.mod and go.sum are checked in
-	@hack/ci/check_mods.sh
-
-.PHONY: vendor
-vendor: mod
-	@go mod vendor -v
-

vendor/github.com/cpuguy83/go-md2man/v2/README.md

@@ -1,15 +0,0 @@
-go-md2man
-=========
-
-Converts markdown into roff (man pages).
-
-Uses blackfriday to process markdown into man pages.
-
-### Usage
-
-./md2man -in /path/to/markdownfile.md -out /manfile/output/path
-
-### How to contribute
-
-We use go modules to manage dependencies.
-As such you must be using at lest go1.11.

vendor/github.com/cpuguy83/go-md2man/v2/go-md2man.1.md

@@ -1,23 +0,0 @@
-go-md2man 1 "January 2015" go-md2man "User Manual"
-==================================================
-
-# NAME
-  go-md2man - Convert markdown files into manpages
-
-# SYNOPSIS
-  go-md2man -in=[/path/to/md/file] -out=[/path/to/output]
-
-# Description
-  go-md2man converts standard markdown formatted documents into manpages. It is
-  written purely in Go so as to reduce dependencies on 3rd party libs.
-
-  By default, the input is stdin and the output is stdout.
-
-# Example
-  Convert the markdown file "go-md2man.1.md" into a manpage.
-
-    go-md2man -in=go-md2man.1.md -out=go-md2man.1.out
-
-# HISTORY
-  January 2015, Originally compiled by Brian Goff( cpuguy83@gmail.com )
-

vendor/github.com/cpuguy83/go-md2man/v2/go.mod

@@ -1,5 +0,0 @@
-module github.com/cpuguy83/go-md2man/v2
-
-go 1.11
-
-require github.com/russross/blackfriday/v2 v2.1.0

vendor/github.com/cpuguy83/go-md2man/v2/go.sum

@@ -1,2 +0,0 @@
-github.com/russross/blackfriday/v2 v2.1.0 h1:JIOH55/0cWyOuilr9/qlrm0BSXldqnqwMsf35Ld67mk=
-github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=

vendor/github.com/cpuguy83/go-md2man/v2/md2man.go

@@ -1,51 +0,0 @@
-package main
-
-import (
-	"flag"
-	"fmt"
-	"io/ioutil"
-	"os"
-
-	"github.com/cpuguy83/go-md2man/v2/md2man"
-)
-
-var inFilePath = flag.String("in", "", "Path to file to be processed (default: stdin)")
-var outFilePath = flag.String("out", "", "Path to output processed file (default: stdout)")
-
-func main() {
-	var err error
-	flag.Parse()
-
-	inFile := os.Stdin
-	if *inFilePath != "" {
-		inFile, err = os.Open(*inFilePath)
-		if err != nil {
-			fmt.Println(err)
-			os.Exit(1)
-		}
-	}
-	defer inFile.Close() // nolint: errcheck
-
-	doc, err := ioutil.ReadAll(inFile)
-	if err != nil {
-		fmt.Println(err)
-		os.Exit(1)
-	}
-
-	out := md2man.Render(doc)
-
-	outFile := os.Stdout
-	if *outFilePath != "" {
-		outFile, err = os.Create(*outFilePath)
-		if err != nil {
-			fmt.Println(err)
-			os.Exit(1)
-		}
-		defer outFile.Close() // nolint: errcheck
-	}
-	_, err = outFile.Write(out)
-	if err != nil {
-		fmt.Println(err)
-		os.Exit(1)
-	}
-}

vendor/github.com/cpuguy83/go-md2man/v2/md2man/md2man.go

@@ -1,14 +0,0 @@
-package md2man
-
-import (
-	"github.com/russross/blackfriday/v2"
-)
-
-// Render converts a markdown document into a roff formatted document.
-func Render(doc []byte) []byte {
-	renderer := NewRoffRenderer()
-
-	return blackfriday.Run(doc,
-		[]blackfriday.Option{blackfriday.WithRenderer(renderer),
-			blackfriday.WithExtensions(renderer.GetExtensions())}...)
-}

vendor/github.com/cpuguy83/go-md2man/v2/md2man/roff.go

@@ -1,336 +0,0 @@
-package md2man
-
-import (
-	"fmt"
-	"io"
-	"os"
-	"strings"
-
-	"github.com/russross/blackfriday/v2"
-)
-
-// roffRenderer implements the blackfriday.Renderer interface for creating
-// roff format (manpages) from markdown text
-type roffRenderer struct {
-	extensions   blackfriday.Extensions
-	listCounters []int
-	firstHeader  bool
-	firstDD      bool
-	listDepth    int
-}
-
-const (
-	titleHeader      = ".TH "
-	topLevelHeader   = "\n\n.SH "
-	secondLevelHdr   = "\n.SH "
-	otherHeader      = "\n.SS "
-	crTag            = "\n"
-	emphTag          = "\\fI"
-	emphCloseTag     = "\\fP"
-	strongTag        = "\\fB"
-	strongCloseTag   = "\\fP"
-	breakTag         = "\n.br\n"
-	paraTag          = "\n.PP\n"
-	hruleTag         = "\n.ti 0\n\\l'\\n(.lu'\n"
-	linkTag          = "\n\\[la]"
-	linkCloseTag     = "\\[ra]"
-	codespanTag      = "\\fB\\fC"
-	codespanCloseTag = "\\fR"
-	codeTag          = "\n.PP\n.RS\n\n.nf\n"
-	codeCloseTag     = "\n.fi\n.RE\n"
-	quoteTag         = "\n.PP\n.RS\n"
-	quoteCloseTag    = "\n.RE\n"
-	listTag          = "\n.RS\n"
-	listCloseTag     = "\n.RE\n"
-	dtTag            = "\n.TP\n"
-	dd2Tag           = "\n"
-	tableStart       = "\n.TS\nallbox;\n"
-	tableEnd         = ".TE\n"
-	tableCellStart   = "T{\n"
-	tableCellEnd     = "\nT}\n"
-)
-
-// NewRoffRenderer creates a new blackfriday Renderer for generating roff documents
-// from markdown
-func NewRoffRenderer() *roffRenderer { // nolint: golint
-	var extensions blackfriday.Extensions
-
-	extensions |= blackfriday.NoIntraEmphasis
-	extensions |= blackfriday.Tables
-	extensions |= blackfriday.FencedCode
-	extensions |= blackfriday.SpaceHeadings
-	extensions |= blackfriday.Footnotes
-	extensions |= blackfriday.Titleblock
-	extensions |= blackfriday.DefinitionLists
-	return &roffRenderer{
-		extensions: extensions,
-	}
-}
-
-// GetExtensions returns the list of extensions used by this renderer implementation
-func (r *roffRenderer) GetExtensions() blackfriday.Extensions {
-	return r.extensions
-}
-
-// RenderHeader handles outputting the header at document start
-func (r *roffRenderer) RenderHeader(w io.Writer, ast *blackfriday.Node) {
-	// disable hyphenation
-	out(w, ".nh\n")
-}
-
-// RenderFooter handles outputting the footer at the document end; the roff
-// renderer has no footer information
-func (r *roffRenderer) RenderFooter(w io.Writer, ast *blackfriday.Node) {
-}
-
-// RenderNode is called for each node in a markdown document; based on the node
-// type the equivalent roff output is sent to the writer
-func (r *roffRenderer) RenderNode(w io.Writer, node *blackfriday.Node, entering bool) blackfriday.WalkStatus {
-
-	var walkAction = blackfriday.GoToNext
-
-	switch node.Type {
-	case blackfriday.Text:
-		escapeSpecialChars(w, node.Literal)
-	case blackfriday.Softbreak:
-		out(w, crTag)
-	case blackfriday.Hardbreak:
-		out(w, breakTag)
-	case blackfriday.Emph:
-		if entering {
-			out(w, emphTag)
-		} else {
-			out(w, emphCloseTag)
-		}
-	case blackfriday.Strong:
-		if entering {
-			out(w, strongTag)
-		} else {
-			out(w, strongCloseTag)
-		}
-	case blackfriday.Link:
-		if !entering {
-			out(w, linkTag+string(node.LinkData.Destination)+linkCloseTag)
-		}
-	case blackfriday.Image:
-		// ignore images
-		walkAction = blackfriday.SkipChildren
-	case blackfriday.Code:
-		out(w, codespanTag)
-		escapeSpecialChars(w, node.Literal)
-		out(w, codespanCloseTag)
-	case blackfriday.Document:
-		break
-	case blackfriday.Paragraph:
-		// roff .PP markers break lists
-		if r.listDepth > 0 {
-			return blackfriday.GoToNext
-		}
-		if entering {
-			out(w, paraTag)
-		} else {
-			out(w, crTag)
-		}
-	case blackfriday.BlockQuote:
-		if entering {
-			out(w, quoteTag)
-		} else {
-			out(w, quoteCloseTag)
-		}
-	case blackfriday.Heading:
-		r.handleHeading(w, node, entering)
-	case blackfriday.HorizontalRule:
-		out(w, hruleTag)
-	case blackfriday.List:
-		r.handleList(w, node, entering)
-	case blackfriday.Item:
-		r.handleItem(w, node, entering)
-	case blackfriday.CodeBlock:
-		out(w, codeTag)
-		escapeSpecialChars(w, node.Literal)
-		out(w, codeCloseTag)
-	case blackfriday.Table:
-		r.handleTable(w, node, entering)
-	case blackfriday.TableHead:
-	case blackfriday.TableBody:
-	case blackfriday.TableRow:
-		// no action as cell entries do all the nroff formatting
-		return blackfriday.GoToNext
-	case blackfriday.TableCell:
-		r.handleTableCell(w, node, entering)
-	case blackfriday.HTMLSpan:
-		// ignore other HTML tags
-	default:
-		fmt.Fprintln(os.Stderr, "WARNING: go-md2man does not handle node type "+node.Type.String())
-	}
-	return walkAction
-}
-
-func (r *roffRenderer) handleHeading(w io.Writer, node *blackfriday.Node, entering bool) {
-	if entering {
-		switch node.Level {
-		case 1:
-			if !r.firstHeader {
-				out(w, titleHeader)
-				r.firstHeader = true
-				break
-			}
-			out(w, topLevelHeader)
-		case 2:
-			out(w, secondLevelHdr)
-		default:
-			out(w, otherHeader)
-		}
-	}
-}
-
-func (r *roffRenderer) handleList(w io.Writer, node *blackfriday.Node, entering bool) {
-	openTag := listTag
-	closeTag := listCloseTag
-	if node.ListFlags&blackfriday.ListTypeDefinition != 0 {
-		// tags for definition lists handled within Item node
-		openTag = ""
-		closeTag = ""
-	}
-	if entering {
-		r.listDepth++
-		if node.ListFlags&blackfriday.ListTypeOrdered != 0 {
-			r.listCounters = append(r.listCounters, 1)
-		}
-		out(w, openTag)
-	} else {
-		if node.ListFlags&blackfriday.ListTypeOrdered != 0 {
-			r.listCounters = r.listCounters[:len(r.listCounters)-1]
-		}
-		out(w, closeTag)
-		r.listDepth--
-	}
-}
-
-func (r *roffRenderer) handleItem(w io.Writer, node *blackfriday.Node, entering bool) {
-	if entering {
-		if node.ListFlags&blackfriday.ListTypeOrdered != 0 {
-			out(w, fmt.Sprintf(".IP \"%3d.\" 5\n", r.listCounters[len(r.listCounters)-1]))
-			r.listCounters[len(r.listCounters)-1]++
-		} else if node.ListFlags&blackfriday.ListTypeTerm != 0 {
-			// DT (definition term): line just before DD (see below).
-			out(w, dtTag)
-			r.firstDD = true
-		} else if node.ListFlags&blackfriday.ListTypeDefinition != 0 {
-			// DD (definition description): line that starts with ": ".
-			//
-			// We have to distinguish between the first DD and the
-			// subsequent ones, as there should be no vertical
-			// whitespace between the DT and the first DD.
-			if r.firstDD {
-				r.firstDD = false
-			} else {
-				out(w, dd2Tag)
-			}
-		} else {
-			out(w, ".IP \\(bu 2\n")
-		}
-	} else {
-		out(w, "\n")
-	}
-}
-
-func (r *roffRenderer) handleTable(w io.Writer, node *blackfriday.Node, entering bool) {
-	if entering {
-		out(w, tableStart)
-		// call walker to count cells (and rows?) so format section can be produced
-		columns := countColumns(node)
-		out(w, strings.Repeat("l ", columns)+"\n")
-		out(w, strings.Repeat("l ", columns)+".\n")
-	} else {
-		out(w, tableEnd)
-	}
-}
-
-func (r *roffRenderer) handleTableCell(w io.Writer, node *blackfriday.Node, entering bool) {
-	if entering {
-		var start string
-		if node.Prev != nil && node.Prev.Type == blackfriday.TableCell {
-			start = "\t"
-		}
-		if node.IsHeader {
-			start += codespanTag
-		} else if nodeLiteralSize(node) > 30 {
-			start += tableCellStart
-		}
-		out(w, start)
-	} else {
-		var end string
-		if node.IsHeader {
-			end = codespanCloseTag
-		} else if nodeLiteralSize(node) > 30 {
-			end = tableCellEnd
-		}
-		if node.Next == nil && end != tableCellEnd {
-			// Last cell: need to carriage return if we are at the end of the
-			// header row and content isn't wrapped in a "tablecell"
-			end += crTag
-		}
-		out(w, end)
-	}
-}
-
-func nodeLiteralSize(node *blackfriday.Node) int {
-	total := 0
-	for n := node.FirstChild; n != nil; n = n.FirstChild {
-		total += len(n.Literal)
-	}
-	return total
-}
-
-// because roff format requires knowing the column count before outputting any table
-// data we need to walk a table tree and count the columns
-func countColumns(node *blackfriday.Node) int {
-	var columns int
-
-	node.Walk(func(node *blackfriday.Node, entering bool) blackfriday.WalkStatus {
-		switch node.Type {
-		case blackfriday.TableRow:
-			if !entering {
-				return blackfriday.Terminate
-			}
-		case blackfriday.TableCell:
-			if entering {
-				columns++
-			}
-		default:
-		}
-		return blackfriday.GoToNext
-	})
-	return columns
-}
-
-func out(w io.Writer, output string) {
-	io.WriteString(w, output) // nolint: errcheck
-}
-
-func escapeSpecialChars(w io.Writer, text []byte) {
-	for i := 0; i < len(text); i++ {
-		// escape initial apostrophe or period
-		if len(text) >= 1 && (text[0] == '\'' || text[0] == '.') {
-			out(w, "\\&")
-		}
-
-		// directly copy normal characters
-		org := i
-
-		for i < len(text) && text[i] != '\\' {
-			i++
-		}
-		if i > org {
-			w.Write(text[org:i]) // nolint: errcheck
-		}
-
-		// escape a character
-		if i >= len(text) {
-			break
-		}
-
-		w.Write([]byte{'\\', text[i]}) // nolint: errcheck
-	}
-}

vendor/github.com/russross/blackfriday/v2/.gitignore

@@ -1,8 +0,0 @@
-*.out
-*.swp
-*.8
-*.6
-_obj
-_test*
-markdown
-tags

vendor/github.com/russross/blackfriday/v2/.travis.yml

@@ -1,17 +0,0 @@
-sudo: false
-language: go
-go:
-  - "1.10.x"
-  - "1.11.x"
-  - tip
-matrix:
-  fast_finish: true
-  allow_failures:
-    - go: tip
-install:
-  - # Do nothing. This is needed to prevent default install action "go get -t -v ./..." from happening here (we want it to happen inside script step).
-script:
-  - go get -t -v ./...
-  - diff -u <(echo -n) <(gofmt -d -s .)
-  - go tool vet .
-  - go test -v ./...

vendor/github.com/russross/blackfriday/v2/LICENSE.txt

@@ -1,29 +0,0 @@
-Blackfriday is distributed under the Simplified BSD License:
-
-> Copyright © 2011 Russ Ross
-> All rights reserved.
->
-> Redistribution and use in source and binary forms, with or without
-> modification, are permitted provided that the following conditions
-> are met:
->
-> 1.  Redistributions of source code must retain the above copyright
->     notice, this list of conditions and the following disclaimer.
->
-> 2.  Redistributions in binary form must reproduce the above
->     copyright notice, this list of conditions and the following
->     disclaimer in the documentation and/or other materials provided with
->     the distribution.
->
-> THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-> "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-> LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-> FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-> COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-> INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-> BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-> LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
-> CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-> LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-> ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-> POSSIBILITY OF SUCH DAMAGE.

vendor/github.com/russross/blackfriday/v2/README.md

@@ -1,335 +0,0 @@
-Blackfriday
-[![Build Status][BuildV2SVG]][BuildV2URL]
-[![PkgGoDev][PkgGoDevV2SVG]][PkgGoDevV2URL]
-===========
-
-Blackfriday is a [Markdown][1] processor implemented in [Go][2]. It
-is paranoid about its input (so you can safely feed it user-supplied
-data), it is fast, it supports common extensions (tables, smart
-punctuation substitutions, etc.), and it is safe for all utf-8
-(unicode) input.
-
-HTML output is currently supported, along with Smartypants
-extensions.
-
-It started as a translation from C of [Sundown][3].
-
-
-Installation
-------------
-
-Blackfriday is compatible with modern Go releases in module mode.
-With Go installed:
-
-    go get github.com/russross/blackfriday/v2
-
-will resolve and add the package to the current development module,
-then build and install it. Alternatively, you can achieve the same
-if you import it in a package:
-
-    import "github.com/russross/blackfriday/v2"
-
-and `go get` without parameters.
-
-Legacy GOPATH mode is unsupported.
-
-
-Versions
---------
-
-Currently maintained and recommended version of Blackfriday is `v2`. It's being
-developed on its own branch: https://github.com/russross/blackfriday/tree/v2 and the
-documentation is available at
-https://pkg.go.dev/github.com/russross/blackfriday/v2.
-
-It is `go get`-able in module mode at `github.com/russross/blackfriday/v2`.
-
-Version 2 offers a number of improvements over v1:
-
-* Cleaned up API
-* A separate call to [`Parse`][4], which produces an abstract syntax tree for
-  the document
-* Latest bug fixes
-* Flexibility to easily add your own rendering extensions
-
-Potential drawbacks:
-
-* Our benchmarks show v2 to be slightly slower than v1. Currently in the
-  ballpark of around 15%.
-* API breakage. If you can't afford modifying your code to adhere to the new API
-  and don't care too much about the new features, v2 is probably not for you.
-* Several bug fixes are trailing behind and still need to be forward-ported to
-  v2. See issue [#348](https://github.com/russross/blackfriday/issues/348) for
-  tracking.
-
-If you are still interested in the legacy `v1`, you can import it from
-`github.com/russross/blackfriday`. Documentation for the legacy v1 can be found
-here: https://pkg.go.dev/github.com/russross/blackfriday.
-
-
-Usage
------
-
-For the most sensible markdown processing, it is as simple as getting your input
-into a byte slice and calling:
-
-```go
-output := blackfriday.Run(input)
-```
-
-Your input will be parsed and the output rendered with a set of most popular
-extensions enabled. If you want the most basic feature set, corresponding with
-the bare Markdown specification, use:
-
-```go
-output := blackfriday.Run(input, blackfriday.WithNoExtensions())
-```
-
-### Sanitize untrusted content
-
-Blackfriday itself does nothing to protect against malicious content. If you are
-dealing with user-supplied markdown, we recommend running Blackfriday's output
-through HTML sanitizer such as [Bluemonday][5].
-
-Here's an example of simple usage of Blackfriday together with Bluemonday:
-
-```go
-import (
-    "github.com/microcosm-cc/bluemonday"
-    "github.com/russross/blackfriday/v2"
-)
-
-// ...
-unsafe := blackfriday.Run(input)
-html := bluemonday.UGCPolicy().SanitizeBytes(unsafe)
-```
-
-### Custom options
-
-If you want to customize the set of options, use `blackfriday.WithExtensions`,
-`blackfriday.WithRenderer` and `blackfriday.WithRefOverride`.
-
-### `blackfriday-tool`
-
-You can also check out `blackfriday-tool` for a more complete example
-of how to use it. Download and install it using:
-
-    go get github.com/russross/blackfriday-tool
-
-This is a simple command-line tool that allows you to process a
-markdown file using a standalone program.  You can also browse the
-source directly on github if you are just looking for some example
-code:
-
-* <https://github.com/russross/blackfriday-tool>
-
-Note that if you have not already done so, installing
-`blackfriday-tool` will be sufficient to download and install
-blackfriday in addition to the tool itself. The tool binary will be
-installed in `$GOPATH/bin`.  This is a statically-linked binary that
-can be copied to wherever you need it without worrying about
-dependencies and library versions.
-
-### Sanitized anchor names
-
-Blackfriday includes an algorithm for creating sanitized anchor names
-corresponding to a given input text. This algorithm is used to create
-anchors for headings when `AutoHeadingIDs` extension is enabled. The
-algorithm has a specification, so that other packages can create
-compatible anchor names and links to those anchors.
-
-The specification is located at https://pkg.go.dev/github.com/russross/blackfriday/v2#hdr-Sanitized_Anchor_Names.
-
-[`SanitizedAnchorName`](https://pkg.go.dev/github.com/russross/blackfriday/v2#SanitizedAnchorName) exposes this functionality, and can be used to
-create compatible links to the anchor names generated by blackfriday.
-This algorithm is also implemented in a small standalone package at
-[`github.com/shurcooL/sanitized_anchor_name`](https://pkg.go.dev/github.com/shurcooL/sanitized_anchor_name). It can be useful for clients
-that want a small package and don't need full functionality of blackfriday.
-
-
-Features
---------
-
-All features of Sundown are supported, including:
-
-*   **Compatibility**. The Markdown v1.0.3 test suite passes with
-    the `--tidy` option.  Without `--tidy`, the differences are
-    mostly in whitespace and entity escaping, where blackfriday is
-    more consistent and cleaner.
-
-*   **Common extensions**, including table support, fenced code
-    blocks, autolinks, strikethroughs, non-strict emphasis, etc.
-
-*   **Safety**. Blackfriday is paranoid when parsing, making it safe
-    to feed untrusted user input without fear of bad things
-    happening. The test suite stress tests this and there are no
-    known inputs that make it crash.  If you find one, please let me
-    know and send me the input that does it.
-
-    NOTE: "safety" in this context means *runtime safety only*. In order to
-    protect yourself against JavaScript injection in untrusted content, see
-    [this example](https://github.com/russross/blackfriday#sanitize-untrusted-content).
-
-*   **Fast processing**. It is fast enough to render on-demand in
-    most web applications without having to cache the output.
-
-*   **Thread safety**. You can run multiple parsers in different
-    goroutines without ill effect. There is no dependence on global
-    shared state.
-
-*   **Minimal dependencies**. Blackfriday only depends on standard
-    library packages in Go. The source code is pretty
-    self-contained, so it is easy to add to any project, including
-    Google App Engine projects.
-
-*   **Standards compliant**. Output successfully validates using the
-    W3C validation tool for HTML 4.01 and XHTML 1.0 Transitional.
-
-
-Extensions
-----------
-
-In addition to the standard markdown syntax, this package
-implements the following extensions:
-
-*   **Intra-word emphasis supression**. The `_` character is
-    commonly used inside words when discussing code, so having
-    markdown interpret it as an emphasis command is usually the
-    wrong thing. Blackfriday lets you treat all emphasis markers as
-    normal characters when they occur inside a word.
-
-*   **Tables**. Tables can be created by drawing them in the input
-    using a simple syntax:
-
-    ```
-    Name    | Age
-    --------|------
-    Bob     | 27
-    Alice   | 23
-    ```
-
-*   **Fenced code blocks**. In addition to the normal 4-space
-    indentation to mark code blocks, you can explicitly mark them
-    and supply a language (to make syntax highlighting simple). Just
-    mark it like this:
-
-        ```go
-        func getTrue() bool {
-            return true
-        }
-        ```
-
-    You can use 3 or more backticks to mark the beginning of the
-    block, and the same number to mark the end of the block.
-
-    To preserve classes of fenced code blocks while using the bluemonday
-    HTML sanitizer, use the following policy:
-
-    ```go
-    p := bluemonday.UGCPolicy()
-    p.AllowAttrs("class").Matching(regexp.MustCompile("^language-[a-zA-Z0-9]+$")).OnElements("code")
-    html := p.SanitizeBytes(unsafe)
-    ```
-
-*   **Definition lists**. A simple definition list is made of a single-line
-    term followed by a colon and the definition for that term.
-
-        Cat
-        : Fluffy animal everyone likes
-
-        Internet
-        : Vector of transmission for pictures of cats
-
-    Terms must be separated from the previous definition by a blank line.
-
-*   **Footnotes**. A marker in the text that will become a superscript number;
-    a footnote definition that will be placed in a list of footnotes at the
-    end of the document. A footnote looks like this:
-
-        This is a footnote.[^1]
-
-        [^1]: the footnote text.
-
-*   **Autolinking**. Blackfriday can find URLs that have not been
-    explicitly marked as links and turn them into links.
-
-*   **Strikethrough**. Use two tildes (`~~`) to mark text that
-    should be crossed out.
-
-*   **Hard line breaks**. With this extension enabled newlines in the input
-    translate into line breaks in the output. This extension is off by default.
-
-*   **Smart quotes**. Smartypants-style punctuation substitution is
-    supported, turning normal double- and single-quote marks into
-    curly quotes, etc.
-
-*   **LaTeX-style dash parsing** is an additional option, where `--`
-    is translated into `&ndash;`, and `---` is translated into
-    `&mdash;`. This differs from most smartypants processors, which
-    turn a single hyphen into an ndash and a double hyphen into an
-    mdash.
-
-*   **Smart fractions**, where anything that looks like a fraction
-    is translated into suitable HTML (instead of just a few special
-    cases like most smartypant processors). For example, `4/5`
-    becomes `<sup>4</sup>&frasl;<sub>5</sub>`, which renders as
-    <sup>4</sup>&frasl;<sub>5</sub>.
-
-
-Other renderers
----------------
-
-Blackfriday is structured to allow alternative rendering engines. Here
-are a few of note:
-
-*   [github_flavored_markdown](https://pkg.go.dev/github.com/shurcooL/github_flavored_markdown):
-    provides a GitHub Flavored Markdown renderer with fenced code block
-    highlighting, clickable heading anchor links.
-
-    It's not customizable, and its goal is to produce HTML output
-    equivalent to the [GitHub Markdown API endpoint](https://developer.github.com/v3/markdown/#render-a-markdown-document-in-raw-mode),
-    except the rendering is performed locally.
-
-*   [markdownfmt](https://github.com/shurcooL/markdownfmt): like gofmt,
-    but for markdown.
-
-*   [LaTeX output](https://gitlab.com/ambrevar/blackfriday-latex):
-    renders output as LaTeX.
-
-*   [bfchroma](https://github.com/Depado/bfchroma/): provides convenience
-    integration with the [Chroma](https://github.com/alecthomas/chroma) code
-    highlighting library. bfchroma is only compatible with v2 of Blackfriday and
-    provides a drop-in renderer ready to use with Blackfriday, as well as
-    options and means for further customization.
-
-*   [Blackfriday-Confluence](https://github.com/kentaro-m/blackfriday-confluence): provides a [Confluence Wiki Markup](https://confluence.atlassian.com/doc/confluence-wiki-markup-251003035.html) renderer.
-
-*   [Blackfriday-Slack](https://github.com/karriereat/blackfriday-slack): converts markdown to slack message style
-
-
-TODO
-----
-
-*   More unit testing
-*   Improve Unicode support. It does not understand all Unicode
-    rules (about what constitutes a letter, a punctuation symbol,
-    etc.), so it may fail to detect word boundaries correctly in
-    some instances. It is safe on all UTF-8 input.
-
-
-License
--------
-
-[Blackfriday is distributed under the Simplified BSD License](LICENSE.txt)
-
-
-   [1]: https://daringfireball.net/projects/markdown/ "Markdown"
-   [2]: https://golang.org/ "Go Language"
-   [3]: https://github.com/vmg/sundown "Sundown"
-   [4]: https://pkg.go.dev/github.com/russross/blackfriday/v2#Parse "Parse func"
-   [5]: https://github.com/microcosm-cc/bluemonday "Bluemonday"
-
-   [BuildV2SVG]: https://travis-ci.org/russross/blackfriday.svg?branch=v2
-   [BuildV2URL]: https://travis-ci.org/russross/blackfriday
-   [PkgGoDevV2SVG]: https://pkg.go.dev/badge/github.com/russross/blackfriday/v2
-   [PkgGoDevV2URL]: https://pkg.go.dev/github.com/russross/blackfriday/v2

vendor/github.com/russross/blackfriday/v2/doc.go

@@ -1,46 +0,0 @@
-// Package blackfriday is a markdown processor.
-//
-// It translates plain text with simple formatting rules into an AST, which can
-// then be further processed to HTML (provided by Blackfriday itself) or other
-// formats (provided by the community).
-//
-// The simplest way to invoke Blackfriday is to call the Run function. It will
-// take a text input and produce a text output in HTML (or other format).
-//
-// A slightly more sophisticated way to use Blackfriday is to create a Markdown
-// processor and to call Parse, which returns a syntax tree for the input
-// document. You can leverage Blackfriday's parsing for content extraction from
-// markdown documents. You can assign a custom renderer and set various options
-// to the Markdown processor.
-//
-// If you're interested in calling Blackfriday from command line, see
-// https://github.com/russross/blackfriday-tool.
-//
-// Sanitized Anchor Names
-//
-// Blackfriday includes an algorithm for creating sanitized anchor names
-// corresponding to a given input text. This algorithm is used to create
-// anchors for headings when AutoHeadingIDs extension is enabled. The
-// algorithm is specified below, so that other packages can create
-// compatible anchor names and links to those anchors.
-//
-// The algorithm iterates over the input text, interpreted as UTF-8,
-// one Unicode code point (rune) at a time. All runes that are letters (category L)
-// or numbers (category N) are considered valid characters. They are mapped to
-// lower case, and included in the output. All other runes are considered
-// invalid characters. Invalid characters that precede the first valid character,
-// as well as invalid character that follow the last valid character
-// are dropped completely. All other sequences of invalid characters
-// between two valid characters are replaced with a single dash character '-'.
-//
-// SanitizedAnchorName exposes this functionality, and can be used to
-// create compatible links to the anchor names generated by blackfriday.
-// This algorithm is also implemented in a small standalone package at
-// github.com/shurcooL/sanitized_anchor_name. It can be useful for clients
-// that want a small package and don't need full functionality of blackfriday.
-package blackfriday
-
-// NOTE: Keep Sanitized Anchor Name algorithm in sync with package
-//       github.com/shurcooL/sanitized_anchor_name.
-//       Otherwise, users of sanitized_anchor_name will get anchor names
-//       that are incompatible with those generated by blackfriday.

vendor/github.com/russross/blackfriday/v2/esc.go

@@ -1,70 +0,0 @@
-package blackfriday
-
-import (
-	"html"
-	"io"
-)
-
-var htmlEscaper = [256][]byte{
-	'&': []byte("&"),
-	'<': []byte("&lt;"),
-	'>': []byte("&gt;"),
-	'"': []byte("&quot;"),
-}
-
-func escapeHTML(w io.Writer, s []byte) {
-	escapeEntities(w, s, false)
-}
-
-func escapeAllHTML(w io.Writer, s []byte) {
-	escapeEntities(w, s, true)
-}
-
-func escapeEntities(w io.Writer, s []byte, escapeValidEntities bool) {
-	var start, end int
-	for end < len(s) {
-		escSeq := htmlEscaper[s[end]]
-		if escSeq != nil {
-			isEntity, entityEnd := nodeIsEntity(s, end)
-			if isEntity && !escapeValidEntities {
-				w.Write(s[start : entityEnd+1])
-				start = entityEnd + 1
-			} else {
-				w.Write(s[start:end])
-				w.Write(escSeq)
-				start = end + 1
-			}
-		}
-		end++
-	}
-	if start < len(s) && end <= len(s) {
-		w.Write(s[start:end])
-	}
-}
-
-func nodeIsEntity(s []byte, end int) (isEntity bool, endEntityPos int) {
-	isEntity = false
-	endEntityPos = end + 1
-
-	if s[end] == '&' {
-		for endEntityPos < len(s) {
-			if s[endEntityPos] == ';' {
-				if entities[string(s[end:endEntityPos+1])] {
-					isEntity = true
-					break
-				}
-			}
-			if !isalnum(s[endEntityPos]) && s[endEntityPos] != '&' && s[endEntityPos] != '#' {
-				break
-			}
-			endEntityPos++
-		}
-	}
-
-	return isEntity, endEntityPos
-}
-
-func escLink(w io.Writer, text []byte) {
-	unesc := html.UnescapeString(string(text))
-	escapeHTML(w, []byte(unesc))
-}

vendor/github.com/russross/blackfriday/v2/go.mod

@@ -1 +0,0 @@
-module github.com/russross/blackfriday/v2

vendor/github.com/russross/blackfriday/v2/html.go

@@ -1,952 +0,0 @@
-//
-// Blackfriday Markdown Processor
-// Available at http://github.com/russross/blackfriday
-//
-// Copyright © 2011 Russ Ross <russ@russross.com>.
-// Distributed under the Simplified BSD License.
-// See README.md for details.
-//
-
-//
-//
-// HTML rendering backend
-//
-//
-
-package blackfriday
-
-import (
-	"bytes"
-	"fmt"
-	"io"
-	"regexp"
-	"strings"
-)
-
-// HTMLFlags control optional behavior of HTML renderer.
-type HTMLFlags int
-
-// HTML renderer configuration options.
-const (
-	HTMLFlagsNone           HTMLFlags = 0
-	SkipHTML                HTMLFlags = 1 << iota // Skip preformatted HTML blocks
-	SkipImages                                    // Skip embedded images
-	SkipLinks                                     // Skip all links
-	Safelink                                      // Only link to trusted protocols
-	NofollowLinks                                 // Only link with rel="nofollow"
-	NoreferrerLinks                               // Only link with rel="noreferrer"
-	NoopenerLinks                                 // Only link with rel="noopener"
-	HrefTargetBlank                               // Add a blank target
-	CompletePage                                  // Generate a complete HTML page
-	UseXHTML                                      // Generate XHTML output instead of HTML
-	FootnoteReturnLinks                           // Generate a link at the end of a footnote to return to the source
-	Smartypants                                   // Enable smart punctuation substitutions
-	SmartypantsFractions                          // Enable smart fractions (with Smartypants)
-	SmartypantsDashes                             // Enable smart dashes (with Smartypants)
-	SmartypantsLatexDashes                        // Enable LaTeX-style dashes (with Smartypants)
-	SmartypantsAngledQuotes                       // Enable angled double quotes (with Smartypants) for double quotes rendering
-	SmartypantsQuotesNBSP                         // Enable « French guillemets » (with Smartypants)
-	TOC                                           // Generate a table of contents
-)
-
-var (
-	htmlTagRe = regexp.MustCompile("(?i)^" + htmlTag)
-)
-
-const (
-	htmlTag = "(?:" + openTag + "|" + closeTag + "|" + htmlComment + "|" +
-		processingInstruction + "|" + declaration + "|" + cdata + ")"
-	closeTag              = "</" + tagName + "\\s*[>]"
-	openTag               = "<" + tagName + attribute + "*" + "\\s*/?>"
-	attribute             = "(?:" + "\\s+" + attributeName + attributeValueSpec + "?)"
-	attributeValue        = "(?:" + unquotedValue + "|" + singleQuotedValue + "|" + doubleQuotedValue + ")"
-	attributeValueSpec    = "(?:" + "\\s*=" + "\\s*" + attributeValue + ")"
-	attributeName         = "[a-zA-Z_:][a-zA-Z0-9:._-]*"
-	cdata                 = "<!\\[CDATA\\[[\\s\\S]*?\\]\\]>"
-	declaration           = "<![A-Z]+" + "\\s+[^>]*>"
-	doubleQuotedValue     = "\"[^\"]*\""
-	htmlComment           = "<!---->|<!--(?:-?[^>-])(?:-?[^-])*-->"
-	processingInstruction = "[<][?].*?[?][>]"
-	singleQuotedValue     = "'[^']*'"
-	tagName               = "[A-Za-z][A-Za-z0-9-]*"
-	unquotedValue         = "[^\"'=<>`\\x00-\\x20]+"
-)
-
-// HTMLRendererParameters is a collection of supplementary parameters tweaking
-// the behavior of various parts of HTML renderer.
-type HTMLRendererParameters struct {
-	// Prepend this text to each relative URL.
-	AbsolutePrefix string
-	// Add this text to each footnote anchor, to ensure uniqueness.
-	FootnoteAnchorPrefix string
-	// Show this text inside the <a> tag for a footnote return link, if the
-	// HTML_FOOTNOTE_RETURN_LINKS flag is enabled. If blank, the string
-	// <sup>[return]</sup> is used.
-	FootnoteReturnLinkContents string
-	// If set, add this text to the front of each Heading ID, to ensure
-	// uniqueness.
-	HeadingIDPrefix string
-	// If set, add this text to the back of each Heading ID, to ensure uniqueness.
-	HeadingIDSuffix string
-	// Increase heading levels: if the offset is 1, <h1> becomes <h2> etc.
-	// Negative offset is also valid.
-	// Resulting levels are clipped between 1 and 6.
-	HeadingLevelOffset int
-
-	Title string // Document title (used if CompletePage is set)
-	CSS   string // Optional CSS file URL (used if CompletePage is set)
-	Icon  string // Optional icon file URL (used if CompletePage is set)
-
-	Flags HTMLFlags // Flags allow customizing this renderer's behavior
-}
-
-// HTMLRenderer is a type that implements the Renderer interface for HTML output.
-//
-// Do not create this directly, instead use the NewHTMLRenderer function.
-type HTMLRenderer struct {
-	HTMLRendererParameters
-
-	closeTag string // how to end singleton tags: either " />" or ">"
-
-	// Track heading IDs to prevent ID collision in a single generation.
-	headingIDs map[string]int
-
-	lastOutputLen int
-	disableTags   int
-
-	sr *SPRenderer
-}
-
-const (
-	xhtmlClose = " />"
-	htmlClose  = ">"
-)
-
-// NewHTMLRenderer creates and configures an HTMLRenderer object, which
-// satisfies the Renderer interface.
-func NewHTMLRenderer(params HTMLRendererParameters) *HTMLRenderer {
-	// configure the rendering engine
-	closeTag := htmlClose
-	if params.Flags&UseXHTML != 0 {
-		closeTag = xhtmlClose
-	}
-
-	if params.FootnoteReturnLinkContents == "" {
-		// U+FE0E is VARIATION SELECTOR-15.
-		// It suppresses automatic emoji presentation of the preceding
-		// U+21A9 LEFTWARDS ARROW WITH HOOK on iOS and iPadOS.
-		params.FootnoteReturnLinkContents = "<span aria-label='Return'>↩\ufe0e</span>"
-	}
-
-	return &HTMLRenderer{
-		HTMLRendererParameters: params,
-
-		closeTag:   closeTag,
-		headingIDs: make(map[string]int),
-
-		sr: NewSmartypantsRenderer(params.Flags),
-	}
-}
-
-func isHTMLTag(tag []byte, tagname string) bool {
-	found, _ := findHTMLTagPos(tag, tagname)
-	return found
-}
-
-// Look for a character, but ignore it when it's in any kind of quotes, it
-// might be JavaScript
-func skipUntilCharIgnoreQuotes(html []byte, start int, char byte) int {
-	inSingleQuote := false
-	inDoubleQuote := false
-	inGraveQuote := false
-	i := start
-	for i < len(html) {
-		switch {
-		case html[i] == char && !inSingleQuote && !inDoubleQuote && !inGraveQuote:
-			return i
-		case html[i] == '\'':
-			inSingleQuote = !inSingleQuote
-		case html[i] == '"':
-			inDoubleQuote = !inDoubleQuote
-		case html[i] == '`':
-			inGraveQuote = !inGraveQuote
-		}
-		i++
-	}
-	return start
-}
-
-func findHTMLTagPos(tag []byte, tagname string) (bool, int) {
-	i := 0
-	if i < len(tag) && tag[0] != '<' {
-		return false, -1
-	}
-	i++
-	i = skipSpace(tag, i)
-
-	if i < len(tag) && tag[i] == '/' {
-		i++
-	}
-
-	i = skipSpace(tag, i)
-	j := 0
-	for ; i < len(tag); i, j = i+1, j+1 {
-		if j >= len(tagname) {
-			break
-		}
-
-		if strings.ToLower(string(tag[i]))[0] != tagname[j] {
-			return false, -1
-		}
-	}
-
-	if i == len(tag) {
-		return false, -1
-	}
-
-	rightAngle := skipUntilCharIgnoreQuotes(tag, i, '>')
-	if rightAngle >= i {
-		return true, rightAngle
-	}
-
-	return false, -1
-}
-
-func skipSpace(tag []byte, i int) int {
-	for i < len(tag) && isspace(tag[i]) {
-		i++
-	}
-	return i
-}
-
-func isRelativeLink(link []byte) (yes bool) {
-	// a tag begin with '#'
-	if link[0] == '#' {
-		return true
-	}
-
-	// link begin with '/' but not '//', the second maybe a protocol relative link
-	if len(link) >= 2 && link[0] == '/' && link[1] != '/' {
-		return true
-	}
-
-	// only the root '/'
-	if len(link) == 1 && link[0] == '/' {
-		return true
-	}
-
-	// current directory : begin with "./"
-	if bytes.HasPrefix(link, []byte("./")) {
-		return true
-	}
-
-	// parent directory : begin with "../"
-	if bytes.HasPrefix(link, []byte("../")) {
-		return true
-	}
-
-	return false
-}
-
-func (r *HTMLRenderer) ensureUniqueHeadingID(id string) string {
-	for count, found := r.headingIDs[id]; found; count, found = r.headingIDs[id] {
-		tmp := fmt.Sprintf("%s-%d", id, count+1)
-
-		if _, tmpFound := r.headingIDs[tmp]; !tmpFound {
-			r.headingIDs[id] = count + 1
-			id = tmp
-		} else {
-			id = id + "-1"
-		}
-	}
-
-	if _, found := r.headingIDs[id]; !found {
-		r.headingIDs[id] = 0
-	}
-
-	return id
-}
-
-func (r *HTMLRenderer) addAbsPrefix(link []byte) []byte {
-	if r.AbsolutePrefix != "" && isRelativeLink(link) && link[0] != '.' {
-		newDest := r.AbsolutePrefix
-		if link[0] != '/' {
-			newDest += "/"
-		}
-		newDest += string(link)
-		return []byte(newDest)
-	}
-	return link
-}
-
-func appendLinkAttrs(attrs []string, flags HTMLFlags, link []byte) []string {
-	if isRelativeLink(link) {
-		return attrs
-	}
-	val := []string{}
-	if flags&NofollowLinks != 0 {
-		val = append(val, "nofollow")
-	}
-	if flags&NoreferrerLinks != 0 {
-		val = append(val, "noreferrer")
-	}
-	if flags&NoopenerLinks != 0 {
-		val = append(val, "noopener")
-	}
-	if flags&HrefTargetBlank != 0 {
-		attrs = append(attrs, "target=\"_blank\"")
-	}
-	if len(val) == 0 {
-		return attrs
-	}
-	attr := fmt.Sprintf("rel=%q", strings.Join(val, " "))
-	return append(attrs, attr)
-}
-
-func isMailto(link []byte) bool {
-	return bytes.HasPrefix(link, []byte("mailto:"))
-}
-
-func needSkipLink(flags HTMLFlags, dest []byte) bool {
-	if flags&SkipLinks != 0 {
-		return true
-	}
-	return flags&Safelink != 0 && !isSafeLink(dest) && !isMailto(dest)
-}
-
-func isSmartypantable(node *Node) bool {
-	pt := node.Parent.Type
-	return pt != Link && pt != CodeBlock && pt != Code
-}
-
-func appendLanguageAttr(attrs []string, info []byte) []string {
-	if len(info) == 0 {
-		return attrs
-	}
-	endOfLang := bytes.IndexAny(info, "\t ")
-	if endOfLang < 0 {
-		endOfLang = len(info)
-	}
-	return append(attrs, fmt.Sprintf("class=\"language-%s\"", info[:endOfLang]))
-}
-
-func (r *HTMLRenderer) tag(w io.Writer, name []byte, attrs []string) {
-	w.Write(name)
-	if len(attrs) > 0 {
-		w.Write(spaceBytes)
-		w.Write([]byte(strings.Join(attrs, " ")))
-	}
-	w.Write(gtBytes)
-	r.lastOutputLen = 1
-}
-
-func footnoteRef(prefix string, node *Node) []byte {
-	urlFrag := prefix + string(slugify(node.Destination))
-	anchor := fmt.Sprintf(`<a href="#fn:%s">%d</a>`, urlFrag, node.NoteID)
-	return []byte(fmt.Sprintf(`<sup class="footnote-ref" id="fnref:%s">%s</sup>`, urlFrag, anchor))
-}
-
-func footnoteItem(prefix string, slug []byte) []byte {
-	return []byte(fmt.Sprintf(`<li id="fn:%s%s">`, prefix, slug))
-}
-
-func footnoteReturnLink(prefix, returnLink string, slug []byte) []byte {
-	const format = ` <a class="footnote-return" href="#fnref:%s%s">%s</a>`
-	return []byte(fmt.Sprintf(format, prefix, slug, returnLink))
-}
-
-func itemOpenCR(node *Node) bool {
-	if node.Prev == nil {
-		return false
-	}
-	ld := node.Parent.ListData
-	return !ld.Tight && ld.ListFlags&ListTypeDefinition == 0
-}
-
-func skipParagraphTags(node *Node) bool {
-	grandparent := node.Parent.Parent
-	if grandparent == nil || grandparent.Type != List {
-		return false
-	}
-	tightOrTerm := grandparent.Tight || node.Parent.ListFlags&ListTypeTerm != 0
-	return grandparent.Type == List && tightOrTerm
-}
-
-func cellAlignment(align CellAlignFlags) string {
-	switch align {
-	case TableAlignmentLeft:
-		return "left"
-	case TableAlignmentRight:
-		return "right"
-	case TableAlignmentCenter:
-		return "center"
-	default:
-		return ""
-	}
-}
-
-func (r *HTMLRenderer) out(w io.Writer, text []byte) {
-	if r.disableTags > 0 {
-		w.Write(htmlTagRe.ReplaceAll(text, []byte{}))
-	} else {
-		w.Write(text)
-	}
-	r.lastOutputLen = len(text)
-}
-
-func (r *HTMLRenderer) cr(w io.Writer) {
-	if r.lastOutputLen > 0 {
-		r.out(w, nlBytes)
-	}
-}
-
-var (
-	nlBytes    = []byte{'\n'}
-	gtBytes    = []byte{'>'}
-	spaceBytes = []byte{' '}
-)
-
-var (
-	brTag              = []byte("<br>")
-	brXHTMLTag         = []byte("<br />")
-	emTag              = []byte("<em>")
-	emCloseTag         = []byte("</em>")
-	strongTag          = []byte("<strong>")
-	strongCloseTag     = []byte("</strong>")
-	delTag             = []byte("<del>")
-	delCloseTag        = []byte("</del>")
-	ttTag              = []byte("<tt>")
-	ttCloseTag         = []byte("</tt>")
-	aTag               = []byte("<a")
-	aCloseTag          = []byte("</a>")
-	preTag             = []byte("<pre>")
-	preCloseTag        = []byte("</pre>")
-	codeTag            = []byte("<code>")
-	codeCloseTag       = []byte("</code>")
-	pTag               = []byte("<p>")
-	pCloseTag          = []byte("</p>")
-	blockquoteTag      = []byte("<blockquote>")
-	blockquoteCloseTag = []byte("</blockquote>")
-	hrTag              = []byte("<hr>")
-	hrXHTMLTag         = []byte("<hr />")
-	ulTag              = []byte("<ul>")
-	ulCloseTag         = []byte("</ul>")
-	olTag              = []byte("<ol>")
-	olCloseTag         = []byte("</ol>")
-	dlTag              = []byte("<dl>")
-	dlCloseTag         = []byte("</dl>")
-	liTag              = []byte("<li>")
-	liCloseTag         = []byte("</li>")
-	ddTag              = []byte("<dd>")
-	ddCloseTag         = []byte("</dd>")
-	dtTag              = []byte("<dt>")
-	dtCloseTag         = []byte("</dt>")
-	tableTag           = []byte("<table>")
-	tableCloseTag      = []byte("</table>")
-	tdTag              = []byte("<td")
-	tdCloseTag         = []byte("</td>")
-	thTag              = []byte("<th")
-	thCloseTag         = []byte("</th>")
-	theadTag           = []byte("<thead>")
-	theadCloseTag      = []byte("</thead>")
-	tbodyTag           = []byte("<tbody>")
-	tbodyCloseTag      = []byte("</tbody>")
-	trTag              = []byte("<tr>")
-	trCloseTag         = []byte("</tr>")
-	h1Tag              = []byte("<h1")
-	h1CloseTag         = []byte("</h1>")
-	h2Tag              = []byte("<h2")
-	h2CloseTag         = []byte("</h2>")
-	h3Tag              = []byte("<h3")
-	h3CloseTag         = []byte("</h3>")
-	h4Tag              = []byte("<h4")
-	h4CloseTag         = []byte("</h4>")
-	h5Tag              = []byte("<h5")
-	h5CloseTag         = []byte("</h5>")
-	h6Tag              = []byte("<h6")
-	h6CloseTag         = []byte("</h6>")
-
-	footnotesDivBytes      = []byte("\n<div class=\"footnotes\">\n\n")
-	footnotesCloseDivBytes = []byte("\n</div>\n")
-)
-
-func headingTagsFromLevel(level int) ([]byte, []byte) {
-	if level <= 1 {
-		return h1Tag, h1CloseTag
-	}
-	switch level {
-	case 2:
-		return h2Tag, h2CloseTag
-	case 3:
-		return h3Tag, h3CloseTag
-	case 4:
-		return h4Tag, h4CloseTag
-	case 5:
-		return h5Tag, h5CloseTag
-	}
-	return h6Tag, h6CloseTag
-}
-
-func (r *HTMLRenderer) outHRTag(w io.Writer) {
-	if r.Flags&UseXHTML == 0 {
-		r.out(w, hrTag)
-	} else {
-		r.out(w, hrXHTMLTag)
-	}
-}
-
-// RenderNode is a default renderer of a single node of a syntax tree. For
-// block nodes it will be called twice: first time with entering=true, second
-// time with entering=false, so that it could know when it's working on an open
-// tag and when on close. It writes the result to w.
-//
-// The return value is a way to tell the calling walker to adjust its walk
-// pattern: e.g. it can terminate the traversal by returning Terminate. Or it
-// can ask the walker to skip a subtree of this node by returning SkipChildren.
-// The typical behavior is to return GoToNext, which asks for the usual
-// traversal to the next node.
-func (r *HTMLRenderer) RenderNode(w io.Writer, node *Node, entering bool) WalkStatus {
-	attrs := []string{}
-	switch node.Type {
-	case Text:
-		if r.Flags&Smartypants != 0 {
-			var tmp bytes.Buffer
-			escapeHTML(&tmp, node.Literal)
-			r.sr.Process(w, tmp.Bytes())
-		} else {
-			if node.Parent.Type == Link {
-				escLink(w, node.Literal)
-			} else {
-				escapeHTML(w, node.Literal)
-			}
-		}
-	case Softbreak:
-		r.cr(w)
-		// TODO: make it configurable via out(renderer.softbreak)
-	case Hardbreak:
-		if r.Flags&UseXHTML == 0 {
-			r.out(w, brTag)
-		} else {
-			r.out(w, brXHTMLTag)
-		}
-		r.cr(w)
-	case Emph:
-		if entering {
-			r.out(w, emTag)
-		} else {
-			r.out(w, emCloseTag)
-		}
-	case Strong:
-		if entering {
-			r.out(w, strongTag)
-		} else {
-			r.out(w, strongCloseTag)
-		}
-	case Del:
-		if entering {
-			r.out(w, delTag)
-		} else {
-			r.out(w, delCloseTag)
-		}
-	case HTMLSpan:
-		if r.Flags&SkipHTML != 0 {
-			break
-		}
-		r.out(w, node.Literal)
-	case Link:
-		// mark it but don't link it if it is not a safe link: no smartypants
-		dest := node.LinkData.Destination
-		if needSkipLink(r.Flags, dest) {
-			if entering {
-				r.out(w, ttTag)
-			} else {
-				r.out(w, ttCloseTag)
-			}
-		} else {
-			if entering {
-				dest = r.addAbsPrefix(dest)
-				var hrefBuf bytes.Buffer
-				hrefBuf.WriteString("href=\"")
-				escLink(&hrefBuf, dest)
-				hrefBuf.WriteByte('"')
-				attrs = append(attrs, hrefBuf.String())
-				if node.NoteID != 0 {
-					r.out(w, footnoteRef(r.FootnoteAnchorPrefix, node))
-					break
-				}
-				attrs = appendLinkAttrs(attrs, r.Flags, dest)
-				if len(node.LinkData.Title) > 0 {
-					var titleBuff bytes.Buffer
-					titleBuff.WriteString("title=\"")
-					escapeHTML(&titleBuff, node.LinkData.Title)
-					titleBuff.WriteByte('"')
-					attrs = append(attrs, titleBuff.String())
-				}
-				r.tag(w, aTag, attrs)
-			} else {
-				if node.NoteID != 0 {
-					break
-				}
-				r.out(w, aCloseTag)
-			}
-		}
-	case Image:
-		if r.Flags&SkipImages != 0 {
-			return SkipChildren
-		}
-		if entering {
-			dest := node.LinkData.Destination
-			dest = r.addAbsPrefix(dest)
-			if r.disableTags == 0 {
-				//if options.safe && potentiallyUnsafe(dest) {
-				//out(w, `<img src="" alt="`)
-				//} else {
-				r.out(w, []byte(`<img src="`))
-				escLink(w, dest)
-				r.out(w, []byte(`" alt="`))
-				//}
-			}
-			r.disableTags++
-		} else {
-			r.disableTags--
-			if r.disableTags == 0 {
-				if node.LinkData.Title != nil {
-					r.out(w, []byte(`" title="`))
-					escapeHTML(w, node.LinkData.Title)
-				}
-				r.out(w, []byte(`" />`))
-			}
-		}
-	case Code:
-		r.out(w, codeTag)
-		escapeAllHTML(w, node.Literal)
-		r.out(w, codeCloseTag)
-	case Document:
-		break
-	case Paragraph:
-		if skipParagraphTags(node) {
-			break
-		}
-		if entering {
-			// TODO: untangle this clusterfuck about when the newlines need
-			// to be added and when not.
-			if node.Prev != nil {
-				switch node.Prev.Type {
-				case HTMLBlock, List, Paragraph, Heading, CodeBlock, BlockQuote, HorizontalRule:
-					r.cr(w)
-				}
-			}
-			if node.Parent.Type == BlockQuote && node.Prev == nil {
-				r.cr(w)
-			}
-			r.out(w, pTag)
-		} else {
-			r.out(w, pCloseTag)
-			if !(node.Parent.Type == Item && node.Next == nil) {
-				r.cr(w)
-			}
-		}
-	case BlockQuote:
-		if entering {
-			r.cr(w)
-			r.out(w, blockquoteTag)
-		} else {
-			r.out(w, blockquoteCloseTag)
-			r.cr(w)
-		}
-	case HTMLBlock:
-		if r.Flags&SkipHTML != 0 {
-			break
-		}
-		r.cr(w)
-		r.out(w, node.Literal)
-		r.cr(w)
-	case Heading:
-		headingLevel := r.HTMLRendererParameters.HeadingLevelOffset + node.Level
-		openTag, closeTag := headingTagsFromLevel(headingLevel)
-		if entering {
-			if node.IsTitleblock {
-				attrs = append(attrs, `class="title"`)
-			}
-			if node.HeadingID != "" {
-				id := r.ensureUniqueHeadingID(node.HeadingID)
-				if r.HeadingIDPrefix != "" {
-					id = r.HeadingIDPrefix + id
-				}
-				if r.HeadingIDSuffix != "" {
-					id = id + r.HeadingIDSuffix
-				}
-				attrs = append(attrs, fmt.Sprintf(`id="%s"`, id))
-			}
-			r.cr(w)
-			r.tag(w, openTag, attrs)
-		} else {
-			r.out(w, closeTag)
-			if !(node.Parent.Type == Item && node.Next == nil) {
-				r.cr(w)
-			}
-		}
-	case HorizontalRule:
-		r.cr(w)
-		r.outHRTag(w)
-		r.cr(w)
-	case List:
-		openTag := ulTag
-		closeTag := ulCloseTag
-		if node.ListFlags&ListTypeOrdered != 0 {
-			openTag = olTag
-			closeTag = olCloseTag
-		}
-		if node.ListFlags&ListTypeDefinition != 0 {
-			openTag = dlTag
-			closeTag = dlCloseTag
-		}
-		if entering {
-			if node.IsFootnotesList {
-				r.out(w, footnotesDivBytes)
-				r.outHRTag(w)
-				r.cr(w)
-			}
-			r.cr(w)
-			if node.Parent.Type == Item && node.Parent.Parent.Tight {
-				r.cr(w)
-			}
-			r.tag(w, openTag[:len(openTag)-1], attrs)
-			r.cr(w)
-		} else {
-			r.out(w, closeTag)
-			//cr(w)
-			//if node.parent.Type != Item {
-			//	cr(w)
-			//}
-			if node.Parent.Type == Item && node.Next != nil {
-				r.cr(w)
-			}
-			if node.Parent.Type == Document || node.Parent.Type == BlockQuote {
-				r.cr(w)
-			}
-			if node.IsFootnotesList {
-				r.out(w, footnotesCloseDivBytes)
-			}
-		}
-	case Item:
-		openTag := liTag
-		closeTag := liCloseTag
-		if node.ListFlags&ListTypeDefinition != 0 {
-			openTag = ddTag
-			closeTag = ddCloseTag
-		}
-		if node.ListFlags&ListTypeTerm != 0 {
-			openTag = dtTag
-			closeTag = dtCloseTag
-		}
-		if entering {
-			if itemOpenCR(node) {
-				r.cr(w)
-			}
-			if node.ListData.RefLink != nil {
-				slug := slugify(node.ListData.RefLink)
-				r.out(w, footnoteItem(r.FootnoteAnchorPrefix, slug))
-				break
-			}
-			r.out(w, openTag)
-		} else {
-			if node.ListData.RefLink != nil {
-				slug := slugify(node.ListData.RefLink)
-				if r.Flags&FootnoteReturnLinks != 0 {
-					r.out(w, footnoteReturnLink(r.FootnoteAnchorPrefix, r.FootnoteReturnLinkContents, slug))
-				}
-			}
-			r.out(w, closeTag)
-			r.cr(w)
-		}
-	case CodeBlock:
-		attrs = appendLanguageAttr(attrs, node.Info)
-		r.cr(w)
-		r.out(w, preTag)
-		r.tag(w, codeTag[:len(codeTag)-1], attrs)
-		escapeAllHTML(w, node.Literal)
-		r.out(w, codeCloseTag)
-		r.out(w, preCloseTag)
-		if node.Parent.Type != Item {
-			r.cr(w)
-		}
-	case Table:
-		if entering {
-			r.cr(w)
-			r.out(w, tableTag)
-		} else {
-			r.out(w, tableCloseTag)
-			r.cr(w)
-		}
-	case TableCell:
-		openTag := tdTag
-		closeTag := tdCloseTag
-		if node.IsHeader {
-			openTag = thTag
-			closeTag = thCloseTag
-		}
-		if entering {
-			align := cellAlignment(node.Align)
-			if align != "" {
-				attrs = append(attrs, fmt.Sprintf(`align="%s"`, align))
-			}
-			if node.Prev == nil {
-				r.cr(w)
-			}
-			r.tag(w, openTag, attrs)
-		} else {
-			r.out(w, closeTag)
-			r.cr(w)
-		}
-	case TableHead:
-		if entering {
-			r.cr(w)
-			r.out(w, theadTag)
-		} else {
-			r.out(w, theadCloseTag)
-			r.cr(w)
-		}
-	case TableBody:
-		if entering {
-			r.cr(w)
-			r.out(w, tbodyTag)
-			// XXX: this is to adhere to a rather silly test. Should fix test.
-			if node.FirstChild == nil {
-				r.cr(w)
-			}
-		} else {
-			r.out(w, tbodyCloseTag)
-			r.cr(w)
-		}
-	case TableRow:
-		if entering {
-			r.cr(w)
-			r.out(w, trTag)
-		} else {
-			r.out(w, trCloseTag)
-			r.cr(w)
-		}
-	default:
-		panic("Unknown node type " + node.Type.String())
-	}
-	return GoToNext
-}
-
-// RenderHeader writes HTML document preamble and TOC if requested.
-func (r *HTMLRenderer) RenderHeader(w io.Writer, ast *Node) {
-	r.writeDocumentHeader(w)
-	if r.Flags&TOC != 0 {
-		r.writeTOC(w, ast)
-	}
-}
-
-// RenderFooter writes HTML document footer.
-func (r *HTMLRenderer) RenderFooter(w io.Writer, ast *Node) {
-	if r.Flags&CompletePage == 0 {
-		return
-	}
-	io.WriteString(w, "\n</body>\n</html>\n")
-}
-
-func (r *HTMLRenderer) writeDocumentHeader(w io.Writer) {
-	if r.Flags&CompletePage == 0 {
-		return
-	}
-	ending := ""
-	if r.Flags&UseXHTML != 0 {
-		io.WriteString(w, "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\" ")
-		io.WriteString(w, "\"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">\n")
-		io.WriteString(w, "<html xmlns=\"http://www.w3.org/1999/xhtml\">\n")
-		ending = " /"
-	} else {
-		io.WriteString(w, "<!DOCTYPE html>\n")
-		io.WriteString(w, "<html>\n")
-	}
-	io.WriteString(w, "<head>\n")
-	io.WriteString(w, "  <title>")
-	if r.Flags&Smartypants != 0 {
-		r.sr.Process(w, []byte(r.Title))
-	} else {
-		escapeHTML(w, []byte(r.Title))
-	}
-	io.WriteString(w, "</title>\n")
-	io.WriteString(w, "  <meta name=\"GENERATOR\" content=\"Blackfriday Markdown Processor v")
-	io.WriteString(w, Version)
-	io.WriteString(w, "\"")
-	io.WriteString(w, ending)
-	io.WriteString(w, ">\n")
-	io.WriteString(w, "  <meta charset=\"utf-8\"")
-	io.WriteString(w, ending)
-	io.WriteString(w, ">\n")
-	if r.CSS != "" {
-		io.WriteString(w, "  <link rel=\"stylesheet\" type=\"text/css\" href=\"")
-		escapeHTML(w, []byte(r.CSS))
-		io.WriteString(w, "\"")
-		io.WriteString(w, ending)
-		io.WriteString(w, ">\n")
-	}
-	if r.Icon != "" {
-		io.WriteString(w, "  <link rel=\"icon\" type=\"image/x-icon\" href=\"")
-		escapeHTML(w, []byte(r.Icon))
-		io.WriteString(w, "\"")
-		io.WriteString(w, ending)
-		io.WriteString(w, ">\n")
-	}
-	io.WriteString(w, "</head>\n")
-	io.WriteString(w, "<body>\n\n")
-}
-
-func (r *HTMLRenderer) writeTOC(w io.Writer, ast *Node) {
-	buf := bytes.Buffer{}
-
-	inHeading := false
-	tocLevel := 0
-	headingCount := 0
-
-	ast.Walk(func(node *Node, entering bool) WalkStatus {
-		if node.Type == Heading && !node.HeadingData.IsTitleblock {
-			inHeading = entering
-			if entering {
-				node.HeadingID = fmt.Sprintf("toc_%d", headingCount)
-				if node.Level == tocLevel {
-					buf.WriteString("</li>\n\n<li>")
-				} else if node.Level < tocLevel {
-					for node.Level < tocLevel {
-						tocLevel--
-						buf.WriteString("</li>\n</ul>")
-					}
-					buf.WriteString("</li>\n\n<li>")
-				} else {
-					for node.Level > tocLevel {
-						tocLevel++
-						buf.WriteString("\n<ul>\n<li>")
-					}
-				}
-
-				fmt.Fprintf(&buf, `<a href="#toc_%d">`, headingCount)
-				headingCount++
-			} else {
-				buf.WriteString("</a>")
-			}
-			return GoToNext
-		}
-
-		if inHeading {
-			return r.RenderNode(&buf, node, entering)
-		}
-
-		return GoToNext
-	})
-
-	for ; tocLevel > 0; tocLevel-- {
-		buf.WriteString("</li>\n</ul>")
-	}
-
-	if buf.Len() > 0 {
-		io.WriteString(w, "<nav>\n")
-		w.Write(buf.Bytes())
-		io.WriteString(w, "\n\n</nav>\n")
-	}
-	r.lastOutputLen = buf.Len()
-}

vendor/github.com/russross/blackfriday/v2/markdown.go

@@ -1,950 +0,0 @@
-// Blackfriday Markdown Processor
-// Available at http://github.com/russross/blackfriday
-//
-// Copyright © 2011 Russ Ross <russ@russross.com>.
-// Distributed under the Simplified BSD License.
-// See README.md for details.
-
-package blackfriday
-
-import (
-	"bytes"
-	"fmt"
-	"io"
-	"strings"
-	"unicode/utf8"
-)
-
-//
-// Markdown parsing and processing
-//
-
-// Version string of the package. Appears in the rendered document when
-// CompletePage flag is on.
-const Version = "2.0"
-
-// Extensions is a bitwise or'ed collection of enabled Blackfriday's
-// extensions.
-type Extensions int
-
-// These are the supported markdown parsing extensions.
-// OR these values together to select multiple extensions.
-const (
-	NoExtensions           Extensions = 0
-	NoIntraEmphasis        Extensions = 1 << iota // Ignore emphasis markers inside words
-	Tables                                        // Render tables
-	FencedCode                                    // Render fenced code blocks
-	Autolink                                      // Detect embedded URLs that are not explicitly marked
-	Strikethrough                                 // Strikethrough text using ~~test~~
-	LaxHTMLBlocks                                 // Loosen up HTML block parsing rules
-	SpaceHeadings                                 // Be strict about prefix heading rules
-	HardLineBreak                                 // Translate newlines into line breaks
-	TabSizeEight                                  // Expand tabs to eight spaces instead of four
-	Footnotes                                     // Pandoc-style footnotes
-	NoEmptyLineBeforeBlock                        // No need to insert an empty line to start a (code, quote, ordered list, unordered list) block
-	HeadingIDs                                    // specify heading IDs  with {#id}
-	Titleblock                                    // Titleblock ala pandoc
-	AutoHeadingIDs                                // Create the heading ID from the text
-	BackslashLineBreak                            // Translate trailing backslashes into line breaks
-	DefinitionLists                               // Render definition lists
-
-	CommonHTMLFlags HTMLFlags = UseXHTML | Smartypants |
-		SmartypantsFractions | SmartypantsDashes | SmartypantsLatexDashes
-
-	CommonExtensions Extensions = NoIntraEmphasis | Tables | FencedCode |
-		Autolink | Strikethrough | SpaceHeadings | HeadingIDs |
-		BackslashLineBreak | DefinitionLists
-)
-
-// ListType contains bitwise or'ed flags for list and list item objects.
-type ListType int
-
-// These are the possible flag values for the ListItem renderer.
-// Multiple flag values may be ORed together.
-// These are mostly of interest if you are writing a new output format.
-const (
-	ListTypeOrdered ListType = 1 << iota
-	ListTypeDefinition
-	ListTypeTerm
-
-	ListItemContainsBlock
-	ListItemBeginningOfList // TODO: figure out if this is of any use now
-	ListItemEndOfList
-)
-
-// CellAlignFlags holds a type of alignment in a table cell.
-type CellAlignFlags int
-
-// These are the possible flag values for the table cell renderer.
-// Only a single one of these values will be used; they are not ORed together.
-// These are mostly of interest if you are writing a new output format.
-const (
-	TableAlignmentLeft CellAlignFlags = 1 << iota
-	TableAlignmentRight
-	TableAlignmentCenter = (TableAlignmentLeft | TableAlignmentRight)
-)
-
-// The size of a tab stop.
-const (
-	TabSizeDefault = 4
-	TabSizeDouble  = 8
-)
-
-// blockTags is a set of tags that are recognized as HTML block tags.
-// Any of these can be included in markdown text without special escaping.
-var blockTags = map[string]struct{}{
-	"blockquote": {},
-	"del":        {},
-	"div":        {},
-	"dl":         {},
-	"fieldset":   {},
-	"form":       {},
-	"h1":         {},
-	"h2":         {},
-	"h3":         {},
-	"h4":         {},
-	"h5":         {},
-	"h6":         {},
-	"iframe":     {},
-	"ins":        {},
-	"math":       {},
-	"noscript":   {},
-	"ol":         {},
-	"pre":        {},
-	"p":          {},
-	"script":     {},
-	"style":      {},
-	"table":      {},
-	"ul":         {},
-
-	// HTML5
-	"address":    {},
-	"article":    {},
-	"aside":      {},
-	"canvas":     {},
-	"figcaption": {},
-	"figure":     {},
-	"footer":     {},
-	"header":     {},
-	"hgroup":     {},
-	"main":       {},
-	"nav":        {},
-	"output":     {},
-	"progress":   {},
-	"section":    {},
-	"video":      {},
-}
-
-// Renderer is the rendering interface. This is mostly of interest if you are
-// implementing a new rendering format.
-//
-// Only an HTML implementation is provided in this repository, see the README
-// for external implementations.
-type Renderer interface {
-	// RenderNode is the main rendering method. It will be called once for
-	// every leaf node and twice for every non-leaf node (first with
-	// entering=true, then with entering=false). The method should write its
-	// rendition of the node to the supplied writer w.
-	RenderNode(w io.Writer, node *Node, entering bool) WalkStatus
-
-	// RenderHeader is a method that allows the renderer to produce some
-	// content preceding the main body of the output document. The header is
-	// understood in the broad sense here. For example, the default HTML
-	// renderer will write not only the HTML document preamble, but also the
-	// table of contents if it was requested.
-	//
-	// The method will be passed an entire document tree, in case a particular
-	// implementation needs to inspect it to produce output.
-	//
-	// The output should be written to the supplied writer w. If your
-	// implementation has no header to write, supply an empty implementation.
-	RenderHeader(w io.Writer, ast *Node)
-
-	// RenderFooter is a symmetric counterpart of RenderHeader.
-	RenderFooter(w io.Writer, ast *Node)
-}
-
-// Callback functions for inline parsing. One such function is defined
-// for each character that triggers a response when parsing inline data.
-type inlineParser func(p *Markdown, data []byte, offset int) (int, *Node)
-
-// Markdown is a type that holds extensions and the runtime state used by
-// Parse, and the renderer. You can not use it directly, construct it with New.
-type Markdown struct {
-	renderer          Renderer
-	referenceOverride ReferenceOverrideFunc
-	refs              map[string]*reference
-	inlineCallback    [256]inlineParser
-	extensions        Extensions
-	nesting           int
-	maxNesting        int
-	insideLink        bool
-
-	// Footnotes need to be ordered as well as available to quickly check for
-	// presence. If a ref is also a footnote, it's stored both in refs and here
-	// in notes. Slice is nil if footnotes not enabled.
-	notes []*reference
-
-	doc                  *Node
-	tip                  *Node // = doc
-	oldTip               *Node
-	lastMatchedContainer *Node // = doc
-	allClosed            bool
-}
-
-func (p *Markdown) getRef(refid string) (ref *reference, found bool) {
-	if p.referenceOverride != nil {
-		r, overridden := p.referenceOverride(refid)
-		if overridden {
-			if r == nil {
-				return nil, false
-			}
-			return &reference{
-				link:     []byte(r.Link),
-				title:    []byte(r.Title),
-				noteID:   0,
-				hasBlock: false,
-				text:     []byte(r.Text)}, true
-		}
-	}
-	// refs are case insensitive
-	ref, found = p.refs[strings.ToLower(refid)]
-	return ref, found
-}
-
-func (p *Markdown) finalize(block *Node) {
-	above := block.Parent
-	block.open = false
-	p.tip = above
-}
-
-func (p *Markdown) addChild(node NodeType, offset uint32) *Node {
-	return p.addExistingChild(NewNode(node), offset)
-}
-
-func (p *Markdown) addExistingChild(node *Node, offset uint32) *Node {
-	for !p.tip.canContain(node.Type) {
-		p.finalize(p.tip)
-	}
-	p.tip.AppendChild(node)
-	p.tip = node
-	return node
-}
-
-func (p *Markdown) closeUnmatchedBlocks() {
-	if !p.allClosed {
-		for p.oldTip != p.lastMatchedContainer {
-			parent := p.oldTip.Parent
-			p.finalize(p.oldTip)
-			p.oldTip = parent
-		}
-		p.allClosed = true
-	}
-}
-
-//
-//
-// Public interface
-//
-//
-
-// Reference represents the details of a link.
-// See the documentation in Options for more details on use-case.
-type Reference struct {
-	// Link is usually the URL the reference points to.
-	Link string
-	// Title is the alternate text describing the link in more detail.
-	Title string
-	// Text is the optional text to override the ref with if the syntax used was
-	// [refid][]
-	Text string
-}
-
-// ReferenceOverrideFunc is expected to be called with a reference string and
-// return either a valid Reference type that the reference string maps to or
-// nil. If overridden is false, the default reference logic will be executed.
-// See the documentation in Options for more details on use-case.
-type ReferenceOverrideFunc func(reference string) (ref *Reference, overridden bool)
-
-// New constructs a Markdown processor. You can use the same With* functions as
-// for Run() to customize parser's behavior and the renderer.
-func New(opts ...Option) *Markdown {
-	var p Markdown
-	for _, opt := range opts {
-		opt(&p)
-	}
-	p.refs = make(map[string]*reference)
-	p.maxNesting = 16
-	p.insideLink = false
-	docNode := NewNode(Document)
-	p.doc = docNode
-	p.tip = docNode
-	p.oldTip = docNode
-	p.lastMatchedContainer = docNode
-	p.allClosed = true
-	// register inline parsers
-	p.inlineCallback[' '] = maybeLineBreak
-	p.inlineCallback['*'] = emphasis
-	p.inlineCallback['_'] = emphasis
-	if p.extensions&Strikethrough != 0 {
-		p.inlineCallback['~'] = emphasis
-	}
-	p.inlineCallback['`'] = codeSpan
-	p.inlineCallback['\n'] = lineBreak
-	p.inlineCallback['['] = link
-	p.inlineCallback['<'] = leftAngle
-	p.inlineCallback['\\'] = escape
-	p.inlineCallback['&'] = entity
-	p.inlineCallback['!'] = maybeImage
-	p.inlineCallback['^'] = maybeInlineFootnote
-	if p.extensions&Autolink != 0 {
-		p.inlineCallback['h'] = maybeAutoLink
-		p.inlineCallback['m'] = maybeAutoLink
-		p.inlineCallback['f'] = maybeAutoLink
-		p.inlineCallback['H'] = maybeAutoLink
-		p.inlineCallback['M'] = maybeAutoLink
-		p.inlineCallback['F'] = maybeAutoLink
-	}
-	if p.extensions&Footnotes != 0 {
-		p.notes = make([]*reference, 0)
-	}
-	return &p
-}
-
-// Option customizes the Markdown processor's default behavior.
-type Option func(*Markdown)
-
-// WithRenderer allows you to override the default renderer.
-func WithRenderer(r Renderer) Option {
-	return func(p *Markdown) {
-		p.renderer = r
-	}
-}
-
-// WithExtensions allows you to pick some of the many extensions provided by
-// Blackfriday. You can bitwise OR them.
-func WithExtensions(e Extensions) Option {
-	return func(p *Markdown) {
-		p.extensions = e
-	}
-}
-
-// WithNoExtensions turns off all extensions and custom behavior.
-func WithNoExtensions() Option {
-	return func(p *Markdown) {
-		p.extensions = NoExtensions
-		p.renderer = NewHTMLRenderer(HTMLRendererParameters{
-			Flags: HTMLFlagsNone,
-		})
-	}
-}
-
-// WithRefOverride sets an optional function callback that is called every
-// time a reference is resolved.
-//
-// In Markdown, the link reference syntax can be made to resolve a link to
-// a reference instead of an inline URL, in one of the following ways:
-//
-//  * [link text][refid]
-//  * [refid][]
-//
-// Usually, the refid is defined at the bottom of the Markdown document. If
-// this override function is provided, the refid is passed to the override
-// function first, before consulting the defined refids at the bottom. If
-// the override function indicates an override did not occur, the refids at
-// the bottom will be used to fill in the link details.
-func WithRefOverride(o ReferenceOverrideFunc) Option {
-	return func(p *Markdown) {
-		p.referenceOverride = o
-	}
-}
-
-// Run is the main entry point to Blackfriday. It parses and renders a
-// block of markdown-encoded text.
-//
-// The simplest invocation of Run takes one argument, input:
-//     output := Run(input)
-// This will parse the input with CommonExtensions enabled and render it with
-// the default HTMLRenderer (with CommonHTMLFlags).
-//
-// Variadic arguments opts can customize the default behavior. Since Markdown
-// type does not contain exported fields, you can not use it directly. Instead,
-// use the With* functions. For example, this will call the most basic
-// functionality, with no extensions:
-//     output := Run(input, WithNoExtensions())
-//
-// You can use any number of With* arguments, even contradicting ones. They
-// will be applied in order of appearance and the latter will override the
-// former:
-//     output := Run(input, WithNoExtensions(), WithExtensions(exts),
-//         WithRenderer(yourRenderer))
-func Run(input []byte, opts ...Option) []byte {
-	r := NewHTMLRenderer(HTMLRendererParameters{
-		Flags: CommonHTMLFlags,
-	})
-	optList := []Option{WithRenderer(r), WithExtensions(CommonExtensions)}
-	optList = append(optList, opts...)
-	parser := New(optList...)
-	ast := parser.Parse(input)
-	var buf bytes.Buffer
-	parser.renderer.RenderHeader(&buf, ast)
-	ast.Walk(func(node *Node, entering bool) WalkStatus {
-		return parser.renderer.RenderNode(&buf, node, entering)
-	})
-	parser.renderer.RenderFooter(&buf, ast)
-	return buf.Bytes()
-}
-
-// Parse is an entry point to the parsing part of Blackfriday. It takes an
-// input markdown document and produces a syntax tree for its contents. This
-// tree can then be rendered with a default or custom renderer, or
-// analyzed/transformed by the caller to whatever non-standard needs they have.
-// The return value is the root node of the syntax tree.
-func (p *Markdown) Parse(input []byte) *Node {
-	p.block(input)
-	// Walk the tree and finish up some of unfinished blocks
-	for p.tip != nil {
-		p.finalize(p.tip)
-	}
-	// Walk the tree again and process inline markdown in each block
-	p.doc.Walk(func(node *Node, entering bool) WalkStatus {
-		if node.Type == Paragraph || node.Type == Heading || node.Type == TableCell {
-			p.inline(node, node.content)
-			node.content = nil
-		}
-		return GoToNext
-	})
-	p.parseRefsToAST()
-	return p.doc
-}
-
-func (p *Markdown) parseRefsToAST() {
-	if p.extensions&Footnotes == 0 || len(p.notes) == 0 {
-		return
-	}
-	p.tip = p.doc
-	block := p.addBlock(List, nil)
-	block.IsFootnotesList = true
-	block.ListFlags = ListTypeOrdered
-	flags := ListItemBeginningOfList
-	// Note: this loop is intentionally explicit, not range-form. This is
-	// because the body of the loop will append nested footnotes to p.notes and
-	// we need to process those late additions. Range form would only walk over
-	// the fixed initial set.
-	for i := 0; i < len(p.notes); i++ {
-		ref := p.notes[i]
-		p.addExistingChild(ref.footnote, 0)
-		block := ref.footnote
-		block.ListFlags = flags | ListTypeOrdered
-		block.RefLink = ref.link
-		if ref.hasBlock {
-			flags |= ListItemContainsBlock
-			p.block(ref.title)
-		} else {
-			p.inline(block, ref.title)
-		}
-		flags &^= ListItemBeginningOfList | ListItemContainsBlock
-	}
-	above := block.Parent
-	finalizeList(block)
-	p.tip = above
-	block.Walk(func(node *Node, entering bool) WalkStatus {
-		if node.Type == Paragraph || node.Type == Heading {
-			p.inline(node, node.content)
-			node.content = nil
-		}
-		return GoToNext
-	})
-}
-
-//
-// Link references
-//
-// This section implements support for references that (usually) appear
-// as footnotes in a document, and can be referenced anywhere in the document.
-// The basic format is:
-//
-//    [1]: http://www.google.com/ "Google"
-//    [2]: http://www.github.com/ "Github"
-//
-// Anywhere in the document, the reference can be linked by referring to its
-// label, i.e., 1 and 2 in this example, as in:
-//
-//    This library is hosted on [Github][2], a git hosting site.
-//
-// Actual footnotes as specified in Pandoc and supported by some other Markdown
-// libraries such as php-markdown are also taken care of. They look like this:
-//
-//    This sentence needs a bit of further explanation.[^note]
-//
-//    [^note]: This is the explanation.
-//
-// Footnotes should be placed at the end of the document in an ordered list.
-// Finally, there are inline footnotes such as:
-//
-//    Inline footnotes^[Also supported.] provide a quick inline explanation,
-//    but are rendered at the bottom of the document.
-//
-
-// reference holds all information necessary for a reference-style links or
-// footnotes.
-//
-// Consider this markdown with reference-style links:
-//
-//     [link][ref]
-//
-//     [ref]: /url/ "tooltip title"
-//
-// It will be ultimately converted to this HTML:
-//
-//     <p><a href=\"/url/\" title=\"title\">link</a></p>
-//
-// And a reference structure will be populated as follows:
-//
-//     p.refs["ref"] = &reference{
-//         link: "/url/",
-//         title: "tooltip title",
-//     }
-//
-// Alternatively, reference can contain information about a footnote. Consider
-// this markdown:
-//
-//     Text needing a footnote.[^a]
-//
-//     [^a]: This is the note
-//
-// A reference structure will be populated as follows:
-//
-//     p.refs["a"] = &reference{
-//         link: "a",
-//         title: "This is the note",
-//         noteID: <some positive int>,
-//     }
-//
-// TODO: As you can see, it begs for splitting into two dedicated structures
-// for refs and for footnotes.
-type reference struct {
-	link     []byte
-	title    []byte
-	noteID   int // 0 if not a footnote ref
-	hasBlock bool
-	footnote *Node // a link to the Item node within a list of footnotes
-
-	text []byte // only gets populated by refOverride feature with Reference.Text
-}
-
-func (r *reference) String() string {
-	return fmt.Sprintf("{link: %q, title: %q, text: %q, noteID: %d, hasBlock: %v}",
-		r.link, r.title, r.text, r.noteID, r.hasBlock)
-}
-
-// Check whether or not data starts with a reference link.
-// If so, it is parsed and stored in the list of references
-// (in the render struct).
-// Returns the number of bytes to skip to move past it,
-// or zero if the first line is not a reference.
-func isReference(p *Markdown, data []byte, tabSize int) int {
-	// up to 3 optional leading spaces
-	if len(data) < 4 {
-		return 0
-	}
-	i := 0
-	for i < 3 && data[i] == ' ' {
-		i++
-	}
-
-	noteID := 0
-
-	// id part: anything but a newline between brackets
-	if data[i] != '[' {
-		return 0
-	}
-	i++
-	if p.extensions&Footnotes != 0 {
-		if i < len(data) && data[i] == '^' {
-			// we can set it to anything here because the proper noteIds will
-			// be assigned later during the second pass. It just has to be != 0
-			noteID = 1
-			i++
-		}
-	}
-	idOffset := i
-	for i < len(data) && data[i] != '\n' && data[i] != '\r' && data[i] != ']' {
-		i++
-	}
-	if i >= len(data) || data[i] != ']' {
-		return 0
-	}
-	idEnd := i
-	// footnotes can have empty ID, like this: [^], but a reference can not be
-	// empty like this: []. Break early if it's not a footnote and there's no ID
-	if noteID == 0 && idOffset == idEnd {
-		return 0
-	}
-	// spacer: colon (space | tab)* newline? (space | tab)*
-	i++
-	if i >= len(data) || data[i] != ':' {
-		return 0
-	}
-	i++
-	for i < len(data) && (data[i] == ' ' || data[i] == '\t') {
-		i++
-	}
-	if i < len(data) && (data[i] == '\n' || data[i] == '\r') {
-		i++
-		if i < len(data) && data[i] == '\n' && data[i-1] == '\r' {
-			i++
-		}
-	}
-	for i < len(data) && (data[i] == ' ' || data[i] == '\t') {
-		i++
-	}
-	if i >= len(data) {
-		return 0
-	}
-
-	var (
-		linkOffset, linkEnd   int
-		titleOffset, titleEnd int
-		lineEnd               int
-		raw                   []byte
-		hasBlock              bool
-	)
-
-	if p.extensions&Footnotes != 0 && noteID != 0 {
-		linkOffset, linkEnd, raw, hasBlock = scanFootnote(p, data, i, tabSize)
-		lineEnd = linkEnd
-	} else {
-		linkOffset, linkEnd, titleOffset, titleEnd, lineEnd = scanLinkRef(p, data, i)
-	}
-	if lineEnd == 0 {
-		return 0
-	}
-
-	// a valid ref has been found
-
-	ref := &reference{
-		noteID:   noteID,
-		hasBlock: hasBlock,
-	}
-
-	if noteID > 0 {
-		// reusing the link field for the id since footnotes don't have links
-		ref.link = data[idOffset:idEnd]
-		// if footnote, it's not really a title, it's the contained text
-		ref.title = raw
-	} else {
-		ref.link = data[linkOffset:linkEnd]
-		ref.title = data[titleOffset:titleEnd]
-	}
-
-	// id matches are case-insensitive
-	id := string(bytes.ToLower(data[idOffset:idEnd]))
-
-	p.refs[id] = ref
-
-	return lineEnd
-}
-
-func scanLinkRef(p *Markdown, data []byte, i int) (linkOffset, linkEnd, titleOffset, titleEnd, lineEnd int) {
-	// link: whitespace-free sequence, optionally between angle brackets
-	if data[i] == '<' {
-		i++
-	}
-	linkOffset = i
-	for i < len(data) && data[i] != ' ' && data[i] != '\t' && data[i] != '\n' && data[i] != '\r' {
-		i++
-	}
-	linkEnd = i
-	if data[linkOffset] == '<' && data[linkEnd-1] == '>' {
-		linkOffset++
-		linkEnd--
-	}
-
-	// optional spacer: (space | tab)* (newline | '\'' | '"' | '(' )
-	for i < len(data) && (data[i] == ' ' || data[i] == '\t') {
-		i++
-	}
-	if i < len(data) && data[i] != '\n' && data[i] != '\r' && data[i] != '\'' && data[i] != '"' && data[i] != '(' {
-		return
-	}
-
-	// compute end-of-line
-	if i >= len(data) || data[i] == '\r' || data[i] == '\n' {
-		lineEnd = i
-	}
-	if i+1 < len(data) && data[i] == '\r' && data[i+1] == '\n' {
-		lineEnd++
-	}
-
-	// optional (space|tab)* spacer after a newline
-	if lineEnd > 0 {
-		i = lineEnd + 1
-		for i < len(data) && (data[i] == ' ' || data[i] == '\t') {
-			i++
-		}
-	}
-
-	// optional title: any non-newline sequence enclosed in '"() alone on its line
-	if i+1 < len(data) && (data[i] == '\'' || data[i] == '"' || data[i] == '(') {
-		i++
-		titleOffset = i
-
-		// look for EOL
-		for i < len(data) && data[i] != '\n' && data[i] != '\r' {
-			i++
-		}
-		if i+1 < len(data) && data[i] == '\n' && data[i+1] == '\r' {
-			titleEnd = i + 1
-		} else {
-			titleEnd = i
-		}
-
-		// step back
-		i--
-		for i > titleOffset && (data[i] == ' ' || data[i] == '\t') {
-			i--
-		}
-		if i > titleOffset && (data[i] == '\'' || data[i] == '"' || data[i] == ')') {
-			lineEnd = titleEnd
-			titleEnd = i
-		}
-	}
-
-	return
-}
-
-// The first bit of this logic is the same as Parser.listItem, but the rest
-// is much simpler. This function simply finds the entire block and shifts it
-// over by one tab if it is indeed a block (just returns the line if it's not).
-// blockEnd is the end of the section in the input buffer, and contents is the
-// extracted text that was shifted over one tab. It will need to be rendered at
-// the end of the document.
-func scanFootnote(p *Markdown, data []byte, i, indentSize int) (blockStart, blockEnd int, contents []byte, hasBlock bool) {
-	if i == 0 || len(data) == 0 {
-		return
-	}
-
-	// skip leading whitespace on first line
-	for i < len(data) && data[i] == ' ' {
-		i++
-	}
-
-	blockStart = i
-
-	// find the end of the line
-	blockEnd = i
-	for i < len(data) && data[i-1] != '\n' {
-		i++
-	}
-
-	// get working buffer
-	var raw bytes.Buffer
-
-	// put the first line into the working buffer
-	raw.Write(data[blockEnd:i])
-	blockEnd = i
-
-	// process the following lines
-	containsBlankLine := false
-
-gatherLines:
-	for blockEnd < len(data) {
-		i++
-
-		// find the end of this line
-		for i < len(data) && data[i-1] != '\n' {
-			i++
-		}
-
-		// if it is an empty line, guess that it is part of this item
-		// and move on to the next line
-		if p.isEmpty(data[blockEnd:i]) > 0 {
-			containsBlankLine = true
-			blockEnd = i
-			continue
-		}
-
-		n := 0
-		if n = isIndented(data[blockEnd:i], indentSize); n == 0 {
-			// this is the end of the block.
-			// we don't want to include this last line in the index.
-			break gatherLines
-		}
-
-		// if there were blank lines before this one, insert a new one now
-		if containsBlankLine {
-			raw.WriteByte('\n')
-			containsBlankLine = false
-		}
-
-		// get rid of that first tab, write to buffer
-		raw.Write(data[blockEnd+n : i])
-		hasBlock = true
-
-		blockEnd = i
-	}
-
-	if data[blockEnd-1] != '\n' {
-		raw.WriteByte('\n')
-	}
-
-	contents = raw.Bytes()
-
-	return
-}
-
-//
-//
-// Miscellaneous helper functions
-//
-//
-
-// Test if a character is a punctuation symbol.
-// Taken from a private function in regexp in the stdlib.
-func ispunct(c byte) bool {
-	for _, r := range []byte("!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~") {
-		if c == r {
-			return true
-		}
-	}
-	return false
-}
-
-// Test if a character is a whitespace character.
-func isspace(c byte) bool {
-	return ishorizontalspace(c) || isverticalspace(c)
-}
-
-// Test if a character is a horizontal whitespace character.
-func ishorizontalspace(c byte) bool {
-	return c == ' ' || c == '\t'
-}
-
-// Test if a character is a vertical character.
-func isverticalspace(c byte) bool {
-	return c == '\n' || c == '\r' || c == '\f' || c == '\v'
-}
-
-// Test if a character is letter.
-func isletter(c byte) bool {
-	return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')
-}
-
-// Test if a character is a letter or a digit.
-// TODO: check when this is looking for ASCII alnum and when it should use unicode
-func isalnum(c byte) bool {
-	return (c >= '0' && c <= '9') || isletter(c)
-}
-
-// Replace tab characters with spaces, aligning to the next TAB_SIZE column.
-// always ends output with a newline
-func expandTabs(out *bytes.Buffer, line []byte, tabSize int) {
-	// first, check for common cases: no tabs, or only tabs at beginning of line
-	i, prefix := 0, 0
-	slowcase := false
-	for i = 0; i < len(line); i++ {
-		if line[i] == '\t' {
-			if prefix == i {
-				prefix++
-			} else {
-				slowcase = true
-				break
-			}
-		}
-	}
-
-	// no need to decode runes if all tabs are at the beginning of the line
-	if !slowcase {
-		for i = 0; i < prefix*tabSize; i++ {
-			out.WriteByte(' ')
-		}
-		out.Write(line[prefix:])
-		return
-	}
-
-	// the slow case: we need to count runes to figure out how
-	// many spaces to insert for each tab
-	column := 0
-	i = 0
-	for i < len(line) {
-		start := i
-		for i < len(line) && line[i] != '\t' {
-			_, size := utf8.DecodeRune(line[i:])
-			i += size
-			column++
-		}
-
-		if i > start {
-			out.Write(line[start:i])
-		}
-
-		if i >= len(line) {
-			break
-		}
-
-		for {
-			out.WriteByte(' ')
-			column++
-			if column%tabSize == 0 {
-				break
-			}
-		}
-
-		i++
-	}
-}
-
-// Find if a line counts as indented or not.
-// Returns number of characters the indent is (0 = not indented).
-func isIndented(data []byte, indentSize int) int {
-	if len(data) == 0 {
-		return 0
-	}
-	if data[0] == '\t' {
-		return 1
-	}
-	if len(data) < indentSize {
-		return 0
-	}
-	for i := 0; i < indentSize; i++ {
-		if data[i] != ' ' {
-			return 0
-		}
-	}
-	return indentSize
-}
-
-// Create a url-safe slug for fragments
-func slugify(in []byte) []byte {
-	if len(in) == 0 {
-		return in
-	}
-	out := make([]byte, 0, len(in))
-	sym := false
-
-	for _, ch := range in {
-		if isalnum(ch) {
-			sym = false
-			out = append(out, ch)
-		} else if sym {
-			continue
-		} else {
-			out = append(out, '-')
-			sym = true
-		}
-	}
-	var a, b int
-	var ch byte
-	for a, ch = range out {
-		if ch != '-' {
-			break
-		}
-	}
-	for b = len(out) - 1; b > 0; b-- {
-		if out[b] != '-' {
-			break
-		}
-	}
-	return out[a : b+1]
-}

vendor/github.com/russross/blackfriday/v2/node.go

@@ -1,360 +0,0 @@
-package blackfriday
-
-import (
-	"bytes"
-	"fmt"
-)
-
-// NodeType specifies a type of a single node of a syntax tree. Usually one
-// node (and its type) corresponds to a single markdown feature, e.g. emphasis
-// or code block.
-type NodeType int
-
-// Constants for identifying different types of nodes. See NodeType.
-const (
-	Document NodeType = iota
-	BlockQuote
-	List
-	Item
-	Paragraph
-	Heading
-	HorizontalRule
-	Emph
-	Strong
-	Del
-	Link
-	Image
-	Text
-	HTMLBlock
-	CodeBlock
-	Softbreak
-	Hardbreak
-	Code
-	HTMLSpan
-	Table
-	TableCell
-	TableHead
-	TableBody
-	TableRow
-)
-
-var nodeTypeNames = []string{
-	Document:       "Document",
-	BlockQuote:     "BlockQuote",
-	List:           "List",
-	Item:           "Item",
-	Paragraph:      "Paragraph",
-	Heading:        "Heading",
-	HorizontalRule: "HorizontalRule",
-	Emph:           "Emph",
-	Strong:         "Strong",
-	Del:            "Del",
-	Link:           "Link",
-	Image:          "Image",
-	Text:           "Text",
-	HTMLBlock:      "HTMLBlock",
-	CodeBlock:      "CodeBlock",
-	Softbreak:      "Softbreak",
-	Hardbreak:      "Hardbreak",
-	Code:           "Code",
-	HTMLSpan:       "HTMLSpan",
-	Table:          "Table",
-	TableCell:      "TableCell",
-	TableHead:      "TableHead",
-	TableBody:      "TableBody",
-	TableRow:       "TableRow",
-}
-
-func (t NodeType) String() string {
-	return nodeTypeNames[t]
-}
-
-// ListData contains fields relevant to a List and Item node type.
-type ListData struct {
-	ListFlags       ListType
-	Tight           bool   // Skip <p>s around list item data if true
-	BulletChar      byte   // '*', '+' or '-' in bullet lists
-	Delimiter       byte   // '.' or ')' after the number in ordered lists
-	RefLink         []byte // If not nil, turns this list item into a footnote item and triggers different rendering
-	IsFootnotesList bool   // This is a list of footnotes
-}
-
-// LinkData contains fields relevant to a Link node type.
-type LinkData struct {
-	Destination []byte // Destination is what goes into a href
-	Title       []byte // Title is the tooltip thing that goes in a title attribute
-	NoteID      int    // NoteID contains a serial number of a footnote, zero if it's not a footnote
-	Footnote    *Node  // If it's a footnote, this is a direct link to the footnote Node. Otherwise nil.
-}
-
-// CodeBlockData contains fields relevant to a CodeBlock node type.
-type CodeBlockData struct {
-	IsFenced    bool   // Specifies whether it's a fenced code block or an indented one
-	Info        []byte // This holds the info string
-	FenceChar   byte
-	FenceLength int
-	FenceOffset int
-}
-
-// TableCellData contains fields relevant to a TableCell node type.
-type TableCellData struct {
-	IsHeader bool           // This tells if it's under the header row
-	Align    CellAlignFlags // This holds the value for align attribute
-}
-
-// HeadingData contains fields relevant to a Heading node type.
-type HeadingData struct {
-	Level        int    // This holds the heading level number
-	HeadingID    string // This might hold heading ID, if present
-	IsTitleblock bool   // Specifies whether it's a title block
-}
-
-// Node is a single element in the abstract syntax tree of the parsed document.
-// It holds connections to the structurally neighboring nodes and, for certain
-// types of nodes, additional information that might be needed when rendering.
-type Node struct {
-	Type       NodeType // Determines the type of the node
-	Parent     *Node    // Points to the parent
-	FirstChild *Node    // Points to the first child, if any
-	LastChild  *Node    // Points to the last child, if any
-	Prev       *Node    // Previous sibling; nil if it's the first child
-	Next       *Node    // Next sibling; nil if it's the last child
-
-	Literal []byte // Text contents of the leaf nodes
-
-	HeadingData   // Populated if Type is Heading
-	ListData      // Populated if Type is List
-	CodeBlockData // Populated if Type is CodeBlock
-	LinkData      // Populated if Type is Link
-	TableCellData // Populated if Type is TableCell
-
-	content []byte // Markdown content of the block nodes
-	open    bool   // Specifies an open block node that has not been finished to process yet
-}
-
-// NewNode allocates a node of a specified type.
-func NewNode(typ NodeType) *Node {
-	return &Node{
-		Type: typ,
-		open: true,
-	}
-}
-
-func (n *Node) String() string {
-	ellipsis := ""
-	snippet := n.Literal
-	if len(snippet) > 16 {
-		snippet = snippet[:16]
-		ellipsis = "..."
-	}
-	return fmt.Sprintf("%s: '%s%s'", n.Type, snippet, ellipsis)
-}
-
-// Unlink removes node 'n' from the tree.
-// It panics if the node is nil.
-func (n *Node) Unlink() {
-	if n.Prev != nil {
-		n.Prev.Next = n.Next
-	} else if n.Parent != nil {
-		n.Parent.FirstChild = n.Next
-	}
-	if n.Next != nil {
-		n.Next.Prev = n.Prev
-	} else if n.Parent != nil {
-		n.Parent.LastChild = n.Prev
-	}
-	n.Parent = nil
-	n.Next = nil
-	n.Prev = nil
-}
-
-// AppendChild adds a node 'child' as a child of 'n'.
-// It panics if either node is nil.
-func (n *Node) AppendChild(child *Node) {
-	child.Unlink()
-	child.Parent = n
-	if n.LastChild != nil {
-		n.LastChild.Next = child
-		child.Prev = n.LastChild
-		n.LastChild = child
-	} else {
-		n.FirstChild = child
-		n.LastChild = child
-	}
-}
-
-// InsertBefore inserts 'sibling' immediately before 'n'.
-// It panics if either node is nil.
-func (n *Node) InsertBefore(sibling *Node) {
-	sibling.Unlink()
-	sibling.Prev = n.Prev
-	if sibling.Prev != nil {
-		sibling.Prev.Next = sibling
-	}
-	sibling.Next = n
-	n.Prev = sibling
-	sibling.Parent = n.Parent
-	if sibling.Prev == nil {
-		sibling.Parent.FirstChild = sibling
-	}
-}
-
-// IsContainer returns true if 'n' can contain children.
-func (n *Node) IsContainer() bool {
-	switch n.Type {
-	case Document:
-		fallthrough
-	case BlockQuote:
-		fallthrough
-	case List:
-		fallthrough
-	case Item:
-		fallthrough
-	case Paragraph:
-		fallthrough
-	case Heading:
-		fallthrough
-	case Emph:
-		fallthrough
-	case Strong:
-		fallthrough
-	case Del:
-		fallthrough
-	case Link:
-		fallthrough
-	case Image:
-		fallthrough
-	case Table:
-		fallthrough
-	case TableHead:
-		fallthrough
-	case TableBody:
-		fallthrough
-	case TableRow:
-		fallthrough
-	case TableCell:
-		return true
-	default:
-		return false
-	}
-}
-
-// IsLeaf returns true if 'n' is a leaf node.
-func (n *Node) IsLeaf() bool {
-	return !n.IsContainer()
-}
-
-func (n *Node) canContain(t NodeType) bool {
-	if n.Type == List {
-		return t == Item
-	}
-	if n.Type == Document || n.Type == BlockQuote || n.Type == Item {
-		return t != Item
-	}
-	if n.Type == Table {
-		return t == TableHead || t == TableBody
-	}
-	if n.Type == TableHead || n.Type == TableBody {
-		return t == TableRow
-	}
-	if n.Type == TableRow {
-		return t == TableCell
-	}
-	return false
-}
-
-// WalkStatus allows NodeVisitor to have some control over the tree traversal.
-// It is returned from NodeVisitor and different values allow Node.Walk to
-// decide which node to go to next.
-type WalkStatus int
-
-const (
-	// GoToNext is the default traversal of every node.
-	GoToNext WalkStatus = iota
-	// SkipChildren tells walker to skip all children of current node.
-	SkipChildren
-	// Terminate tells walker to terminate the traversal.
-	Terminate
-)
-
-// NodeVisitor is a callback to be called when traversing the syntax tree.
-// Called twice for every node: once with entering=true when the branch is
-// first visited, then with entering=false after all the children are done.
-type NodeVisitor func(node *Node, entering bool) WalkStatus
-
-// Walk is a convenience method that instantiates a walker and starts a
-// traversal of subtree rooted at n.
-func (n *Node) Walk(visitor NodeVisitor) {
-	w := newNodeWalker(n)
-	for w.current != nil {
-		status := visitor(w.current, w.entering)
-		switch status {
-		case GoToNext:
-			w.next()
-		case SkipChildren:
-			w.entering = false
-			w.next()
-		case Terminate:
-			return
-		}
-	}
-}
-
-type nodeWalker struct {
-	current  *Node
-	root     *Node
-	entering bool
-}
-
-func newNodeWalker(root *Node) *nodeWalker {
-	return &nodeWalker{
-		current:  root,
-		root:     root,
-		entering: true,
-	}
-}
-
-func (nw *nodeWalker) next() {
-	if (!nw.current.IsContainer() || !nw.entering) && nw.current == nw.root {
-		nw.current = nil
-		return
-	}
-	if nw.entering && nw.current.IsContainer() {
-		if nw.current.FirstChild != nil {
-			nw.current = nw.current.FirstChild
-			nw.entering = true
-		} else {
-			nw.entering = false
-		}
-	} else if nw.current.Next == nil {
-		nw.current = nw.current.Parent
-		nw.entering = false
-	} else {
-		nw.current = nw.current.Next
-		nw.entering = true
-	}
-}
-
-func dump(ast *Node) {
-	fmt.Println(dumpString(ast))
-}
-
-func dumpR(ast *Node, depth int) string {
-	if ast == nil {
-		return ""
-	}
-	indent := bytes.Repeat([]byte("\t"), depth)
-	content := ast.Literal
-	if content == nil {
-		content = ast.content
-	}
-	result := fmt.Sprintf("%s%s(%q)\n", indent, ast.Type, content)
-	for n := ast.FirstChild; n != nil; n = n.Next {
-		result += dumpR(n, depth+1)
-	}
-	return result
-}
-
-func dumpString(ast *Node) string {
-	return dumpR(ast, 0)
-}

vendor/github.com/russross/blackfriday/v2/smartypants.go

@@ -1,457 +0,0 @@
-//
-// Blackfriday Markdown Processor
-// Available at http://github.com/russross/blackfriday
-//
-// Copyright © 2011 Russ Ross <russ@russross.com>.
-// Distributed under the Simplified BSD License.
-// See README.md for details.
-//
-
-//
-//
-// SmartyPants rendering
-//
-//
-
-package blackfriday
-
-import (
-	"bytes"
-	"io"
-)
-
-// SPRenderer is a struct containing state of a Smartypants renderer.
-type SPRenderer struct {
-	inSingleQuote bool
-	inDoubleQuote bool
-	callbacks     [256]smartCallback
-}
-
-func wordBoundary(c byte) bool {
-	return c == 0 || isspace(c) || ispunct(c)
-}
-
-func tolower(c byte) byte {
-	if c >= 'A' && c <= 'Z' {
-		return c - 'A' + 'a'
-	}
-	return c
-}
-
-func isdigit(c byte) bool {
-	return c >= '0' && c <= '9'
-}
-
-func smartQuoteHelper(out *bytes.Buffer, previousChar byte, nextChar byte, quote byte, isOpen *bool, addNBSP bool) bool {
-	// edge of the buffer is likely to be a tag that we don't get to see,
-	// so we treat it like text sometimes
-
-	// enumerate all sixteen possibilities for (previousChar, nextChar)
-	// each can be one of {0, space, punct, other}
-	switch {
-	case previousChar == 0 && nextChar == 0:
-		// context is not any help here, so toggle
-		*isOpen = !*isOpen
-	case isspace(previousChar) && nextChar == 0:
-		// [ "] might be [ "<code>foo...]
-		*isOpen = true
-	case ispunct(previousChar) && nextChar == 0:
-		// [!"] hmm... could be [Run!"] or [("<code>...]
-		*isOpen = false
-	case /* isnormal(previousChar) && */ nextChar == 0:
-		// [a"] is probably a close
-		*isOpen = false
-	case previousChar == 0 && isspace(nextChar):
-		// [" ] might be [...foo</code>" ]
-		*isOpen = false
-	case isspace(previousChar) && isspace(nextChar):
-		// [ " ] context is not any help here, so toggle
-		*isOpen = !*isOpen
-	case ispunct(previousChar) && isspace(nextChar):
-		// [!" ] is probably a close
-		*isOpen = false
-	case /* isnormal(previousChar) && */ isspace(nextChar):
-		// [a" ] this is one of the easy cases
-		*isOpen = false
-	case previousChar == 0 && ispunct(nextChar):
-		// ["!] hmm... could be ["$1.95] or [</code>"!...]
-		*isOpen = false
-	case isspace(previousChar) && ispunct(nextChar):
-		// [ "!] looks more like [ "$1.95]
-		*isOpen = true
-	case ispunct(previousChar) && ispunct(nextChar):
-		// [!"!] context is not any help here, so toggle
-		*isOpen = !*isOpen
-	case /* isnormal(previousChar) && */ ispunct(nextChar):
-		// [a"!] is probably a close
-		*isOpen = false
-	case previousChar == 0 /* && isnormal(nextChar) */ :
-		// ["a] is probably an open
-		*isOpen = true
-	case isspace(previousChar) /* && isnormal(nextChar) */ :
-		// [ "a] this is one of the easy cases
-		*isOpen = true
-	case ispunct(previousChar) /* && isnormal(nextChar) */ :
-		// [!"a] is probably an open
-		*isOpen = true
-	default:
-		// [a'b] maybe a contraction?
-		*isOpen = false
-	}
-
-	// Note that with the limited lookahead, this non-breaking
-	// space will also be appended to single double quotes.
-	if addNBSP && !*isOpen {
-		out.WriteString("&nbsp;")
-	}
-
-	out.WriteByte('&')
-	if *isOpen {
-		out.WriteByte('l')
-	} else {
-		out.WriteByte('r')
-	}
-	out.WriteByte(quote)
-	out.WriteString("quo;")
-
-	if addNBSP && *isOpen {
-		out.WriteString("&nbsp;")
-	}
-
-	return true
-}
-
-func (r *SPRenderer) smartSingleQuote(out *bytes.Buffer, previousChar byte, text []byte) int {
-	if len(text) >= 2 {
-		t1 := tolower(text[1])
-
-		if t1 == '\'' {
-			nextChar := byte(0)
-			if len(text) >= 3 {
-				nextChar = text[2]
-			}
-			if smartQuoteHelper(out, previousChar, nextChar, 'd', &r.inDoubleQuote, false) {
-				return 1
-			}
-		}
-
-		if (t1 == 's' || t1 == 't' || t1 == 'm' || t1 == 'd') && (len(text) < 3 || wordBoundary(text[2])) {
-			out.WriteString("&rsquo;")
-			return 0
-		}
-
-		if len(text) >= 3 {
-			t2 := tolower(text[2])
-
-			if ((t1 == 'r' && t2 == 'e') || (t1 == 'l' && t2 == 'l') || (t1 == 'v' && t2 == 'e')) &&
-				(len(text) < 4 || wordBoundary(text[3])) {
-				out.WriteString("&rsquo;")
-				return 0
-			}
-		}
-	}
-
-	nextChar := byte(0)
-	if len(text) > 1 {
-		nextChar = text[1]
-	}
-	if smartQuoteHelper(out, previousChar, nextChar, 's', &r.inSingleQuote, false) {
-		return 0
-	}
-
-	out.WriteByte(text[0])
-	return 0
-}
-
-func (r *SPRenderer) smartParens(out *bytes.Buffer, previousChar byte, text []byte) int {
-	if len(text) >= 3 {
-		t1 := tolower(text[1])
-		t2 := tolower(text[2])
-
-		if t1 == 'c' && t2 == ')' {
-			out.WriteString("&copy;")
-			return 2
-		}
-
-		if t1 == 'r' && t2 == ')' {
-			out.WriteString("&reg;")
-			return 2
-		}
-
-		if len(text) >= 4 && t1 == 't' && t2 == 'm' && text[3] == ')' {
-			out.WriteString("&trade;")
-			return 3
-		}
-	}
-
-	out.WriteByte(text[0])
-	return 0
-}
-
-func (r *SPRenderer) smartDash(out *bytes.Buffer, previousChar byte, text []byte) int {
-	if len(text) >= 2 {
-		if text[1] == '-' {
-			out.WriteString("&mdash;")
-			return 1
-		}
-
-		if wordBoundary(previousChar) && wordBoundary(text[1]) {
-			out.WriteString("&ndash;")
-			return 0
-		}
-	}
-
-	out.WriteByte(text[0])
-	return 0
-}
-
-func (r *SPRenderer) smartDashLatex(out *bytes.Buffer, previousChar byte, text []byte) int {
-	if len(text) >= 3 && text[1] == '-' && text[2] == '-' {
-		out.WriteString("&mdash;")
-		return 2
-	}
-	if len(text) >= 2 && text[1] == '-' {
-		out.WriteString("&ndash;")
-		return 1
-	}
-
-	out.WriteByte(text[0])
-	return 0
-}
-
-func (r *SPRenderer) smartAmpVariant(out *bytes.Buffer, previousChar byte, text []byte, quote byte, addNBSP bool) int {
-	if bytes.HasPrefix(text, []byte("&quot;")) {
-		nextChar := byte(0)
-		if len(text) >= 7 {
-			nextChar = text[6]
-		}
-		if smartQuoteHelper(out, previousChar, nextChar, quote, &r.inDoubleQuote, addNBSP) {
-			return 5
-		}
-	}
-
-	if bytes.HasPrefix(text, []byte("&#0;")) {
-		return 3
-	}
-
-	out.WriteByte('&')
-	return 0
-}
-
-func (r *SPRenderer) smartAmp(angledQuotes, addNBSP bool) func(*bytes.Buffer, byte, []byte) int {
-	var quote byte = 'd'
-	if angledQuotes {
-		quote = 'a'
-	}
-
-	return func(out *bytes.Buffer, previousChar byte, text []byte) int {
-		return r.smartAmpVariant(out, previousChar, text, quote, addNBSP)
-	}
-}
-
-func (r *SPRenderer) smartPeriod(out *bytes.Buffer, previousChar byte, text []byte) int {
-	if len(text) >= 3 && text[1] == '.' && text[2] == '.' {
-		out.WriteString("&hellip;")
-		return 2
-	}
-
-	if len(text) >= 5 && text[1] == ' ' && text[2] == '.' && text[3] == ' ' && text[4] == '.' {
-		out.WriteString("&hellip;")
-		return 4
-	}
-
-	out.WriteByte(text[0])
-	return 0
-}
-
-func (r *SPRenderer) smartBacktick(out *bytes.Buffer, previousChar byte, text []byte) int {
-	if len(text) >= 2 && text[1] == '`' {
-		nextChar := byte(0)
-		if len(text) >= 3 {
-			nextChar = text[2]
-		}
-		if smartQuoteHelper(out, previousChar, nextChar, 'd', &r.inDoubleQuote, false) {
-			return 1
-		}
-	}
-
-	out.WriteByte(text[0])
-	return 0
-}
-
-func (r *SPRenderer) smartNumberGeneric(out *bytes.Buffer, previousChar byte, text []byte) int {
-	if wordBoundary(previousChar) && previousChar != '/' && len(text) >= 3 {
-		// is it of the form digits/digits(word boundary)?, i.e., \d+/\d+\b
-		// note: check for regular slash (/) or fraction slash (⁄, 0x2044, or 0xe2 81 84 in utf-8)
-		//       and avoid changing dates like 1/23/2005 into fractions.
-		numEnd := 0
-		for len(text) > numEnd && isdigit(text[numEnd]) {
-			numEnd++
-		}
-		if numEnd == 0 {
-			out.WriteByte(text[0])
-			return 0
-		}
-		denStart := numEnd + 1
-		if len(text) > numEnd+3 && text[numEnd] == 0xe2 && text[numEnd+1] == 0x81 && text[numEnd+2] == 0x84 {
-			denStart = numEnd + 3
-		} else if len(text) < numEnd+2 || text[numEnd] != '/' {
-			out.WriteByte(text[0])
-			return 0
-		}
-		denEnd := denStart
-		for len(text) > denEnd && isdigit(text[denEnd]) {
-			denEnd++
-		}
-		if denEnd == denStart {
-			out.WriteByte(text[0])
-			return 0
-		}
-		if len(text) == denEnd || wordBoundary(text[denEnd]) && text[denEnd] != '/' {
-			out.WriteString("<sup>")
-			out.Write(text[:numEnd])
-			out.WriteString("</sup>&frasl;<sub>")
-			out.Write(text[denStart:denEnd])
-			out.WriteString("</sub>")
-			return denEnd - 1
-		}
-	}
-
-	out.WriteByte(text[0])
-	return 0
-}
-
-func (r *SPRenderer) smartNumber(out *bytes.Buffer, previousChar byte, text []byte) int {
-	if wordBoundary(previousChar) && previousChar != '/' && len(text) >= 3 {
-		if text[0] == '1' && text[1] == '/' && text[2] == '2' {
-			if len(text) < 4 || wordBoundary(text[3]) && text[3] != '/' {
-				out.WriteString("&frac12;")
-				return 2
-			}
-		}
-
-		if text[0] == '1' && text[1] == '/' && text[2] == '4' {
-			if len(text) < 4 || wordBoundary(text[3]) && text[3] != '/' || (len(text) >= 5 && tolower(text[3]) == 't' && tolower(text[4]) == 'h') {
-				out.WriteString("&frac14;")
-				return 2
-			}
-		}
-
-		if text[0] == '3' && text[1] == '/' && text[2] == '4' {
-			if len(text) < 4 || wordBoundary(text[3]) && text[3] != '/' || (len(text) >= 6 && tolower(text[3]) == 't' && tolower(text[4]) == 'h' && tolower(text[5]) == 's') {
-				out.WriteString("&frac34;")
-				return 2
-			}
-		}
-	}
-
-	out.WriteByte(text[0])
-	return 0
-}
-
-func (r *SPRenderer) smartDoubleQuoteVariant(out *bytes.Buffer, previousChar byte, text []byte, quote byte) int {
-	nextChar := byte(0)
-	if len(text) > 1 {
-		nextChar = text[1]
-	}
-	if !smartQuoteHelper(out, previousChar, nextChar, quote, &r.inDoubleQuote, false) {
-		out.WriteString("&quot;")
-	}
-
-	return 0
-}
-
-func (r *SPRenderer) smartDoubleQuote(out *bytes.Buffer, previousChar byte, text []byte) int {
-	return r.smartDoubleQuoteVariant(out, previousChar, text, 'd')
-}
-
-func (r *SPRenderer) smartAngledDoubleQuote(out *bytes.Buffer, previousChar byte, text []byte) int {
-	return r.smartDoubleQuoteVariant(out, previousChar, text, 'a')
-}
-
-func (r *SPRenderer) smartLeftAngle(out *bytes.Buffer, previousChar byte, text []byte) int {
-	i := 0
-
-	for i < len(text) && text[i] != '>' {
-		i++
-	}
-
-	out.Write(text[:i+1])
-	return i
-}
-
-type smartCallback func(out *bytes.Buffer, previousChar byte, text []byte) int
-
-// NewSmartypantsRenderer constructs a Smartypants renderer object.
-func NewSmartypantsRenderer(flags HTMLFlags) *SPRenderer {
-	var (
-		r SPRenderer
-
-		smartAmpAngled      = r.smartAmp(true, false)
-		smartAmpAngledNBSP  = r.smartAmp(true, true)
-		smartAmpRegular     = r.smartAmp(false, false)
-		smartAmpRegularNBSP = r.smartAmp(false, true)
-
-		addNBSP = flags&SmartypantsQuotesNBSP != 0
-	)
-
-	if flags&SmartypantsAngledQuotes == 0 {
-		r.callbacks['"'] = r.smartDoubleQuote
-		if !addNBSP {
-			r.callbacks['&'] = smartAmpRegular
-		} else {
-			r.callbacks['&'] = smartAmpRegularNBSP
-		}
-	} else {
-		r.callbacks['"'] = r.smartAngledDoubleQuote
-		if !addNBSP {
-			r.callbacks['&'] = smartAmpAngled
-		} else {
-			r.callbacks['&'] = smartAmpAngledNBSP
-		}
-	}
-	r.callbacks['\''] = r.smartSingleQuote
-	r.callbacks['('] = r.smartParens
-	if flags&SmartypantsDashes != 0 {
-		if flags&SmartypantsLatexDashes == 0 {
-			r.callbacks['-'] = r.smartDash
-		} else {
-			r.callbacks['-'] = r.smartDashLatex
-		}
-	}
-	r.callbacks['.'] = r.smartPeriod
-	if flags&SmartypantsFractions == 0 {
-		r.callbacks['1'] = r.smartNumber
-		r.callbacks['3'] = r.smartNumber
-	} else {
-		for ch := '1'; ch <= '9'; ch++ {
-			r.callbacks[ch] = r.smartNumberGeneric
-		}
-	}
-	r.callbacks['<'] = r.smartLeftAngle
-	r.callbacks['`'] = r.smartBacktick
-	return &r
-}
-
-// Process is the entry point of the Smartypants renderer.
-func (r *SPRenderer) Process(w io.Writer, text []byte) {
-	mark := 0
-	for i := 0; i < len(text); i++ {
-		if action := r.callbacks[text[i]]; action != nil {
-			if i > mark {
-				w.Write(text[mark:i])
-			}
-			previousChar := byte(0)
-			if i > 0 {
-				previousChar = text[i-1]
-			}
-			var tmp bytes.Buffer
-			i += action(&tmp, previousChar, text[i:])
-			w.Write(tmp.Bytes())
-			mark = i + 1
-		}
-	}
-	if mark < len(text) {
-		w.Write(text[mark:])
-	}
-}

vendor/github.com/spf13/cobra/doc/README.md

@@ -1,12 +0,0 @@
-# Documentation generation
-
-- [Man page docs](./man_docs.md)
-- [Markdown docs](./md_docs.md)
-- [Rest docs](./rest_docs.md)
-- [Yaml docs](./yaml_docs.md)
-
-## Options
-### `DisableAutoGenTag`
-You may set `cmd.DisableAutoGenTag = true`
-to _entirely_ remove the auto generated string "Auto generated by spf13/cobra..."
-from any documentation source.

vendor/github.com/spf13/cobra/doc/man_docs.go

@@ -1,245 +0,0 @@
-// Copyright 2015 Red Hat Inc. All rights reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package doc
-
-import (
-	"bytes"
-	"fmt"
-	"io"
-	"os"
-	"path/filepath"
-	"sort"
-	"strconv"
-	"strings"
-	"time"
-
-	"github.com/cpuguy83/go-md2man/v2/md2man"
-	"github.com/spf13/cobra"
-	"github.com/spf13/pflag"
-)
-
-// GenManTree will generate a man page for this command and all descendants
-// in the directory given. The header may be nil. This function may not work
-// correctly if your command names have `-` in them. If you have `cmd` with two
-// subcmds, `sub` and `sub-third`, and `sub` has a subcommand called `third`
-// it is undefined which help output will be in the file `cmd-sub-third.1`.
-func GenManTree(cmd *cobra.Command, header *GenManHeader, dir string) error {
-	return GenManTreeFromOpts(cmd, GenManTreeOptions{
-		Header:           header,
-		Path:             dir,
-		CommandSeparator: "-",
-	})
-}
-
-// GenManTreeFromOpts generates a man page for the command and all descendants.
-// The pages are written to the opts.Path directory.
-func GenManTreeFromOpts(cmd *cobra.Command, opts GenManTreeOptions) error {
-	header := opts.Header
-	if header == nil {
-		header = &GenManHeader{}
-	}
-	for _, c := range cmd.Commands() {
-		if !c.IsAvailableCommand() || c.IsAdditionalHelpTopicCommand() {
-			continue
-		}
-		if err := GenManTreeFromOpts(c, opts); err != nil {
-			return err
-		}
-	}
-	section := "1"
-	if header.Section != "" {
-		section = header.Section
-	}
-
-	separator := "_"
-	if opts.CommandSeparator != "" {
-		separator = opts.CommandSeparator
-	}
-	basename := strings.Replace(cmd.CommandPath(), " ", separator, -1)
-	filename := filepath.Join(opts.Path, basename+"."+section)
-	f, err := os.Create(filename)
-	if err != nil {
-		return err
-	}
-	defer f.Close()
-
-	headerCopy := *header
-	return GenMan(cmd, &headerCopy, f)
-}
-
-// GenManTreeOptions is the options for generating the man pages.
-// Used only in GenManTreeFromOpts.
-type GenManTreeOptions struct {
-	Header           *GenManHeader
-	Path             string
-	CommandSeparator string
-}
-
-// GenManHeader is a lot like the .TH header at the start of man pages. These
-// include the title, section, date, source, and manual. We will use the
-// current time if Date is unset and will use "Auto generated by spf13/cobra"
-// if the Source is unset.
-type GenManHeader struct {
-	Title   string
-	Section string
-	Date    *time.Time
-	date    string
-	Source  string
-	Manual  string
-}
-
-// GenMan will generate a man page for the given command and write it to
-// w. The header argument may be nil, however obviously w may not.
-func GenMan(cmd *cobra.Command, header *GenManHeader, w io.Writer) error {
-	if header == nil {
-		header = &GenManHeader{}
-	}
-	if err := fillHeader(header, cmd.CommandPath(), cmd.DisableAutoGenTag); err != nil {
-		return err
-	}
-
-	b := genMan(cmd, header)
-	_, err := w.Write(md2man.Render(b))
-	return err
-}
-
-func fillHeader(header *GenManHeader, name string, disableAutoGen bool) error {
-	if header.Title == "" {
-		header.Title = strings.ToUpper(strings.Replace(name, " ", "\\-", -1))
-	}
-	if header.Section == "" {
-		header.Section = "1"
-	}
-	if header.Date == nil {
-		now := time.Now()
-		if epoch := os.Getenv("SOURCE_DATE_EPOCH"); epoch != "" {
-			unixEpoch, err := strconv.ParseInt(epoch, 10, 64)
-			if err != nil {
-				return fmt.Errorf("invalid SOURCE_DATE_EPOCH: %v", err)
-			}
-			now = time.Unix(unixEpoch, 0)
-		}
-		header.Date = &now
-	}
-	header.date = (*header.Date).Format("Jan 2006")
-	if header.Source == "" && !disableAutoGen {
-		header.Source = "Auto generated by spf13/cobra"
-	}
-	return nil
-}
-
-func manPreamble(buf io.StringWriter, header *GenManHeader, cmd *cobra.Command, dashedName string) {
-	description := cmd.Long
-	if len(description) == 0 {
-		description = cmd.Short
-	}
-
-	cobra.WriteStringAndCheck(buf, fmt.Sprintf(`%% "%s" "%s" "%s" "%s" "%s"
-# NAME
-`, header.Title, header.Section, header.date, header.Source, header.Manual))
-	cobra.WriteStringAndCheck(buf, fmt.Sprintf("%s \\- %s\n\n", dashedName, cmd.Short))
-	cobra.WriteStringAndCheck(buf, "# SYNOPSIS\n")
-	cobra.WriteStringAndCheck(buf, fmt.Sprintf("**%s**\n\n", cmd.UseLine()))
-	cobra.WriteStringAndCheck(buf, "# DESCRIPTION\n")
-	cobra.WriteStringAndCheck(buf, description+"\n\n")
-}
-
-func manPrintFlags(buf io.StringWriter, flags *pflag.FlagSet) {
-	flags.VisitAll(func(flag *pflag.Flag) {
-		if len(flag.Deprecated) > 0 || flag.Hidden {
-			return
-		}
-		format := ""
-		if len(flag.Shorthand) > 0 && len(flag.ShorthandDeprecated) == 0 {
-			format = fmt.Sprintf("**-%s**, **--%s**", flag.Shorthand, flag.Name)
-		} else {
-			format = fmt.Sprintf("**--%s**", flag.Name)
-		}
-		if len(flag.NoOptDefVal) > 0 {
-			format += "["
-		}
-		if flag.Value.Type() == "string" {
-			// put quotes on the value
-			format += "=%q"
-		} else {
-			format += "=%s"
-		}
-		if len(flag.NoOptDefVal) > 0 {
-			format += "]"
-		}
-		format += "\n\t%s\n\n"
-		cobra.WriteStringAndCheck(buf, fmt.Sprintf(format, flag.DefValue, flag.Usage))
-	})
-}
-
-func manPrintOptions(buf io.StringWriter, command *cobra.Command) {
-	flags := command.NonInheritedFlags()
-	if flags.HasAvailableFlags() {
-		cobra.WriteStringAndCheck(buf, "# OPTIONS\n")
-		manPrintFlags(buf, flags)
-		cobra.WriteStringAndCheck(buf, "\n")
-	}
-	flags = command.InheritedFlags()
-	if flags.HasAvailableFlags() {
-		cobra.WriteStringAndCheck(buf, "# OPTIONS INHERITED FROM PARENT COMMANDS\n")
-		manPrintFlags(buf, flags)
-		cobra.WriteStringAndCheck(buf, "\n")
-	}
-}
-
-func genMan(cmd *cobra.Command, header *GenManHeader) []byte {
-	cmd.InitDefaultHelpCmd()
-	cmd.InitDefaultHelpFlag()
-
-	// something like `rootcmd-subcmd1-subcmd2`
-	dashCommandName := strings.Replace(cmd.CommandPath(), " ", "-", -1)
-
-	buf := new(bytes.Buffer)
-
-	manPreamble(buf, header, cmd, dashCommandName)
-	manPrintOptions(buf, cmd)
-	if len(cmd.Example) > 0 {
-		buf.WriteString("# EXAMPLE\n")
-		buf.WriteString(fmt.Sprintf("```\n%s\n```\n", cmd.Example))
-	}
-	if hasSeeAlso(cmd) {
-		buf.WriteString("# SEE ALSO\n")
-		seealsos := make([]string, 0)
-		if cmd.HasParent() {
-			parentPath := cmd.Parent().CommandPath()
-			dashParentPath := strings.Replace(parentPath, " ", "-", -1)
-			seealso := fmt.Sprintf("**%s(%s)**", dashParentPath, header.Section)
-			seealsos = append(seealsos, seealso)
-			cmd.VisitParents(func(c *cobra.Command) {
-				if c.DisableAutoGenTag {
-					cmd.DisableAutoGenTag = c.DisableAutoGenTag
-				}
-			})
-		}
-		children := cmd.Commands()
-		sort.Sort(byName(children))
-		for _, c := range children {
-			if !c.IsAvailableCommand() || c.IsAdditionalHelpTopicCommand() {
-				continue
-			}
-			seealso := fmt.Sprintf("**%s-%s(%s)**", dashCommandName, c.Name(), header.Section)
-			seealsos = append(seealsos, seealso)
-		}
-		buf.WriteString(strings.Join(seealsos, ", ") + "\n")
-	}
-	if !cmd.DisableAutoGenTag {
-		buf.WriteString(fmt.Sprintf("# HISTORY\n%s Auto generated by spf13/cobra\n", header.Date.Format("2-Jan-2006")))
-	}
-	return buf.Bytes()
-}

vendor/github.com/spf13/cobra/doc/man_docs.md

@@ -1,31 +0,0 @@
-# Generating Man Pages For Your Own cobra.Command
-
-Generating man pages from a cobra command is incredibly easy. An example is as follows:
-
-```go
-package main
-
-import (
-	"log"
-
-	"github.com/spf13/cobra"
-	"github.com/spf13/cobra/doc"
-)
-
-func main() {
-	cmd := &cobra.Command{
-		Use:   "test",
-		Short: "my test program",
-	}
-	header := &doc.GenManHeader{
-		Title: "MINE",
-		Section: "3",
-	}
-	err := doc.GenManTree(cmd, header, "/tmp")
-	if err != nil {
-		log.Fatal(err)
-	}
-}
-```
-
-That will get you a man page `/tmp/test.3`

vendor/github.com/spf13/cobra/doc/md_docs.go

@@ -1,155 +0,0 @@
-//Copyright 2015 Red Hat Inc. All rights reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package doc
-
-import (
-	"bytes"
-	"fmt"
-	"io"
-	"os"
-	"path/filepath"
-	"sort"
-	"strings"
-	"time"
-
-	"github.com/spf13/cobra"
-)
-
-func printOptions(buf *bytes.Buffer, cmd *cobra.Command, name string) error {
-	flags := cmd.NonInheritedFlags()
-	flags.SetOutput(buf)
-	if flags.HasAvailableFlags() {
-		buf.WriteString("### Options\n\n```\n")
-		flags.PrintDefaults()
-		buf.WriteString("```\n\n")
-	}
-
-	parentFlags := cmd.InheritedFlags()
-	parentFlags.SetOutput(buf)
-	if parentFlags.HasAvailableFlags() {
-		buf.WriteString("### Options inherited from parent commands\n\n```\n")
-		parentFlags.PrintDefaults()
-		buf.WriteString("```\n\n")
-	}
-	return nil
-}
-
-// GenMarkdown creates markdown output.
-func GenMarkdown(cmd *cobra.Command, w io.Writer) error {
-	return GenMarkdownCustom(cmd, w, func(s string) string { return s })
-}
-
-// GenMarkdownCustom creates custom markdown output.
-func GenMarkdownCustom(cmd *cobra.Command, w io.Writer, linkHandler func(string) string) error {
-	cmd.InitDefaultHelpCmd()
-	cmd.InitDefaultHelpFlag()
-
-	buf := new(bytes.Buffer)
-	name := cmd.CommandPath()
-
-	buf.WriteString("## " + name + "\n\n")
-	buf.WriteString(cmd.Short + "\n\n")
-	if len(cmd.Long) > 0 {
-		buf.WriteString("### Synopsis\n\n")
-		buf.WriteString(cmd.Long + "\n\n")
-	}
-
-	if cmd.Runnable() {
-		buf.WriteString(fmt.Sprintf("```\n%s\n```\n\n", cmd.UseLine()))
-	}
-
-	if len(cmd.Example) > 0 {
-		buf.WriteString("### Examples\n\n")
-		buf.WriteString(fmt.Sprintf("```\n%s\n```\n\n", cmd.Example))
-	}
-
-	if err := printOptions(buf, cmd, name); err != nil {
-		return err
-	}
-	if hasSeeAlso(cmd) {
-		buf.WriteString("### SEE ALSO\n\n")
-		if cmd.HasParent() {
-			parent := cmd.Parent()
-			pname := parent.CommandPath()
-			link := pname + ".md"
-			link = strings.Replace(link, " ", "_", -1)
-			buf.WriteString(fmt.Sprintf("* [%s](%s)\t - %s\n", pname, linkHandler(link), parent.Short))
-			cmd.VisitParents(func(c *cobra.Command) {
-				if c.DisableAutoGenTag {
-					cmd.DisableAutoGenTag = c.DisableAutoGenTag
-				}
-			})
-		}
-
-		children := cmd.Commands()
-		sort.Sort(byName(children))
-
-		for _, child := range children {
-			if !child.IsAvailableCommand() || child.IsAdditionalHelpTopicCommand() {
-				continue
-			}
-			cname := name + " " + child.Name()
-			link := cname + ".md"
-			link = strings.Replace(link, " ", "_", -1)
-			buf.WriteString(fmt.Sprintf("* [%s](%s)\t - %s\n", cname, linkHandler(link), child.Short))
-		}
-		buf.WriteString("\n")
-	}
-	if !cmd.DisableAutoGenTag {
-		buf.WriteString("###### Auto generated by spf13/cobra on " + time.Now().Format("2-Jan-2006") + "\n")
-	}
-	_, err := buf.WriteTo(w)
-	return err
-}
-
-// GenMarkdownTree will generate a markdown page for this command and all
-// descendants in the directory given. The header may be nil.
-// This function may not work correctly if your command names have `-` in them.
-// If you have `cmd` with two subcmds, `sub` and `sub-third`,
-// and `sub` has a subcommand called `third`, it is undefined which
-// help output will be in the file `cmd-sub-third.1`.
-func GenMarkdownTree(cmd *cobra.Command, dir string) error {
-	identity := func(s string) string { return s }
-	emptyStr := func(s string) string { return "" }
-	return GenMarkdownTreeCustom(cmd, dir, emptyStr, identity)
-}
-
-// GenMarkdownTreeCustom is the the same as GenMarkdownTree, but
-// with custom filePrepender and linkHandler.
-func GenMarkdownTreeCustom(cmd *cobra.Command, dir string, filePrepender, linkHandler func(string) string) error {
-	for _, c := range cmd.Commands() {
-		if !c.IsAvailableCommand() || c.IsAdditionalHelpTopicCommand() {
-			continue
-		}
-		if err := GenMarkdownTreeCustom(c, dir, filePrepender, linkHandler); err != nil {
-			return err
-		}
-	}
-
-	basename := strings.Replace(cmd.CommandPath(), " ", "_", -1) + ".md"
-	filename := filepath.Join(dir, basename)
-	f, err := os.Create(filename)
-	if err != nil {
-		return err
-	}
-	defer f.Close()
-
-	if _, err := io.WriteString(f, filePrepender(filename)); err != nil {
-		return err
-	}
-	if err := GenMarkdownCustom(cmd, f, linkHandler); err != nil {
-		return err
-	}
-	return nil
-}

vendor/github.com/spf13/cobra/doc/md_docs.md

@@ -1,115 +0,0 @@
-# Generating Markdown Docs For Your Own cobra.Command
-
-Generating Markdown pages from a cobra command is incredibly easy. An example is as follows:
-
-```go
-package main
-
-import (
-	"log"
-
-	"github.com/spf13/cobra"
-	"github.com/spf13/cobra/doc"
-)
-
-func main() {
-	cmd := &cobra.Command{
-		Use:   "test",
-		Short: "my test program",
-	}
-	err := doc.GenMarkdownTree(cmd, "/tmp")
-	if err != nil {
-		log.Fatal(err)
-	}
-}
-```
-
-That will get you a Markdown document `/tmp/test.md`
-
-## Generate markdown docs for the entire command tree
-
-This program can actually generate docs for the kubectl command in the kubernetes project
-
-```go
-package main
-
-import (
-	"log"
-	"io/ioutil"
-	"os"
-
-	"k8s.io/kubernetes/pkg/kubectl/cmd"
-	cmdutil "k8s.io/kubernetes/pkg/kubectl/cmd/util"
-
-	"github.com/spf13/cobra/doc"
-)
-
-func main() {
-	kubectl := cmd.NewKubectlCommand(cmdutil.NewFactory(nil), os.Stdin, ioutil.Discard, ioutil.Discard)
-	err := doc.GenMarkdownTree(kubectl, "./")
-	if err != nil {
-		log.Fatal(err)
-	}
-}
-```
-
-This will generate a whole series of files, one for each command in the tree, in the directory specified (in this case "./")
-
-## Generate markdown docs for a single command
-
-You may wish to have more control over the output, or only generate for a single command, instead of the entire command tree. If this is the case you may prefer to `GenMarkdown` instead of `GenMarkdownTree`
-
-```go
-	out := new(bytes.Buffer)
-	err := doc.GenMarkdown(cmd, out)
-	if err != nil {
-		log.Fatal(err)
-	}
-```
-
-This will write the markdown doc for ONLY "cmd" into the out, buffer.
-
-## Customize the output
-
-Both `GenMarkdown` and `GenMarkdownTree` have alternate versions with callbacks to get some control of the output:
-
-```go
-func GenMarkdownTreeCustom(cmd *Command, dir string, filePrepender, linkHandler func(string) string) error {
-	//...
-}
-```
-
-```go
-func GenMarkdownCustom(cmd *Command, out *bytes.Buffer, linkHandler func(string) string) error {
-	//...
-}
-```
-
-The `filePrepender` will prepend the return value given the full filepath to the rendered Markdown file. A common use case is to add front matter to use the generated documentation with [Hugo](http://gohugo.io/):
-
-```go
-const fmTemplate = `---
-date: %s
-title: "%s"
-slug: %s
-url: %s
----
-`
-
-filePrepender := func(filename string) string {
-	now := time.Now().Format(time.RFC3339)
-	name := filepath.Base(filename)
-	base := strings.TrimSuffix(name, path.Ext(name))
-	url := "/commands/" + strings.ToLower(base) + "/"
-	return fmt.Sprintf(fmTemplate, now, strings.Replace(base, "_", " ", -1), base, url)
-}
-```
-
-The `linkHandler` can be used to customize the rendered internal links to the commands, given a filename:
-
-```go
-linkHandler := func(name string) string {
-	base := strings.TrimSuffix(name, path.Ext(name))
-	return "/commands/" + strings.ToLower(base) + "/"
-}
-```

vendor/github.com/spf13/cobra/doc/rest_docs.go

@@ -1,185 +0,0 @@
-//Copyright 2015 Red Hat Inc. All rights reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package doc
-
-import (
-	"bytes"
-	"fmt"
-	"io"
-	"os"
-	"path/filepath"
-	"sort"
-	"strings"
-	"time"
-
-	"github.com/spf13/cobra"
-)
-
-func printOptionsReST(buf *bytes.Buffer, cmd *cobra.Command, name string) error {
-	flags := cmd.NonInheritedFlags()
-	flags.SetOutput(buf)
-	if flags.HasAvailableFlags() {
-		buf.WriteString("Options\n")
-		buf.WriteString("~~~~~~~\n\n::\n\n")
-		flags.PrintDefaults()
-		buf.WriteString("\n")
-	}
-
-	parentFlags := cmd.InheritedFlags()
-	parentFlags.SetOutput(buf)
-	if parentFlags.HasAvailableFlags() {
-		buf.WriteString("Options inherited from parent commands\n")
-		buf.WriteString("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\n::\n\n")
-		parentFlags.PrintDefaults()
-		buf.WriteString("\n")
-	}
-	return nil
-}
-
-// linkHandler for default ReST hyperlink markup
-func defaultLinkHandler(name, ref string) string {
-	return fmt.Sprintf("`%s <%s.rst>`_", name, ref)
-}
-
-// GenReST creates reStructured Text output.
-func GenReST(cmd *cobra.Command, w io.Writer) error {
-	return GenReSTCustom(cmd, w, defaultLinkHandler)
-}
-
-// GenReSTCustom creates custom reStructured Text output.
-func GenReSTCustom(cmd *cobra.Command, w io.Writer, linkHandler func(string, string) string) error {
-	cmd.InitDefaultHelpCmd()
-	cmd.InitDefaultHelpFlag()
-
-	buf := new(bytes.Buffer)
-	name := cmd.CommandPath()
-
-	short := cmd.Short
-	long := cmd.Long
-	if len(long) == 0 {
-		long = short
-	}
-	ref := strings.Replace(name, " ", "_", -1)
-
-	buf.WriteString(".. _" + ref + ":\n\n")
-	buf.WriteString(name + "\n")
-	buf.WriteString(strings.Repeat("-", len(name)) + "\n\n")
-	buf.WriteString(short + "\n\n")
-	buf.WriteString("Synopsis\n")
-	buf.WriteString("~~~~~~~~\n\n")
-	buf.WriteString("\n" + long + "\n\n")
-
-	if cmd.Runnable() {
-		buf.WriteString(fmt.Sprintf("::\n\n  %s\n\n", cmd.UseLine()))
-	}
-
-	if len(cmd.Example) > 0 {
-		buf.WriteString("Examples\n")
-		buf.WriteString("~~~~~~~~\n\n")
-		buf.WriteString(fmt.Sprintf("::\n\n%s\n\n", indentString(cmd.Example, "  ")))
-	}
-
-	if err := printOptionsReST(buf, cmd, name); err != nil {
-		return err
-	}
-	if hasSeeAlso(cmd) {
-		buf.WriteString("SEE ALSO\n")
-		buf.WriteString("~~~~~~~~\n\n")
-		if cmd.HasParent() {
-			parent := cmd.Parent()
-			pname := parent.CommandPath()
-			ref = strings.Replace(pname, " ", "_", -1)
-			buf.WriteString(fmt.Sprintf("* %s \t - %s\n", linkHandler(pname, ref), parent.Short))
-			cmd.VisitParents(func(c *cobra.Command) {
-				if c.DisableAutoGenTag {
-					cmd.DisableAutoGenTag = c.DisableAutoGenTag
-				}
-			})
-		}
-
-		children := cmd.Commands()
-		sort.Sort(byName(children))
-
-		for _, child := range children {
-			if !child.IsAvailableCommand() || child.IsAdditionalHelpTopicCommand() {
-				continue
-			}
-			cname := name + " " + child.Name()
-			ref = strings.Replace(cname, " ", "_", -1)
-			buf.WriteString(fmt.Sprintf("* %s \t - %s\n", linkHandler(cname, ref), child.Short))
-		}
-		buf.WriteString("\n")
-	}
-	if !cmd.DisableAutoGenTag {
-		buf.WriteString("*Auto generated by spf13/cobra on " + time.Now().Format("2-Jan-2006") + "*\n")
-	}
-	_, err := buf.WriteTo(w)
-	return err
-}
-
-// GenReSTTree will generate a ReST page for this command and all
-// descendants in the directory given.
-// This function may not work correctly if your command names have `-` in them.
-// If you have `cmd` with two subcmds, `sub` and `sub-third`,
-// and `sub` has a subcommand called `third`, it is undefined which
-// help output will be in the file `cmd-sub-third.1`.
-func GenReSTTree(cmd *cobra.Command, dir string) error {
-	emptyStr := func(s string) string { return "" }
-	return GenReSTTreeCustom(cmd, dir, emptyStr, defaultLinkHandler)
-}
-
-// GenReSTTreeCustom is the the same as GenReSTTree, but
-// with custom filePrepender and linkHandler.
-func GenReSTTreeCustom(cmd *cobra.Command, dir string, filePrepender func(string) string, linkHandler func(string, string) string) error {
-	for _, c := range cmd.Commands() {
-		if !c.IsAvailableCommand() || c.IsAdditionalHelpTopicCommand() {
-			continue
-		}
-		if err := GenReSTTreeCustom(c, dir, filePrepender, linkHandler); err != nil {
-			return err
-		}
-	}
-
-	basename := strings.Replace(cmd.CommandPath(), " ", "_", -1) + ".rst"
-	filename := filepath.Join(dir, basename)
-	f, err := os.Create(filename)
-	if err != nil {
-		return err
-	}
-	defer f.Close()
-
-	if _, err := io.WriteString(f, filePrepender(filename)); err != nil {
-		return err
-	}
-	if err := GenReSTCustom(cmd, f, linkHandler); err != nil {
-		return err
-	}
-	return nil
-}
-
-// adapted from: https://github.com/kr/text/blob/main/indent.go
-func indentString(s, p string) string {
-	var res []byte
-	b := []byte(s)
-	prefix := []byte(p)
-	bol := true
-	for _, c := range b {
-		if bol && c != '\n' {
-			res = append(res, prefix...)
-		}
-		res = append(res, c)
-		bol = c == '\n'
-	}
-	return string(res)
-}

vendor/github.com/spf13/cobra/doc/rest_docs.md

@@ -1,114 +0,0 @@
-# Generating ReStructured Text Docs For Your Own cobra.Command
-
-Generating ReST pages from a cobra command is incredibly easy. An example is as follows:
-
-```go
-package main
-
-import (
-	"log"
-
-	"github.com/spf13/cobra"
-	"github.com/spf13/cobra/doc"
-)
-
-func main() {
-	cmd := &cobra.Command{
-		Use:   "test",
-		Short: "my test program",
-	}
-	err := doc.GenReSTTree(cmd, "/tmp")
-	if err != nil {
-		log.Fatal(err)
-	}
-}
-```
-
-That will get you a ReST document `/tmp/test.rst`
-
-## Generate ReST docs for the entire command tree
-
-This program can actually generate docs for the kubectl command in the kubernetes project
-
-```go
-package main
-
-import (
-	"log"
-	"io/ioutil"
-	"os"
-
-	"k8s.io/kubernetes/pkg/kubectl/cmd"
-	cmdutil "k8s.io/kubernetes/pkg/kubectl/cmd/util"
-
-	"github.com/spf13/cobra/doc"
-)
-
-func main() {
-	kubectl := cmd.NewKubectlCommand(cmdutil.NewFactory(nil), os.Stdin, ioutil.Discard, ioutil.Discard)
-	err := doc.GenReSTTree(kubectl, "./")
-	if err != nil {
-		log.Fatal(err)
-	}
-}
-```
-
-This will generate a whole series of files, one for each command in the tree, in the directory specified (in this case "./")
-
-## Generate ReST docs for a single command
-
-You may wish to have more control over the output, or only generate for a single command, instead of the entire command tree. If this is the case you may prefer to `GenReST` instead of `GenReSTTree`
-
-```go
-	out := new(bytes.Buffer)
-	err := doc.GenReST(cmd, out)
-	if err != nil {
-		log.Fatal(err)
-	}
-```
-
-This will write the ReST doc for ONLY "cmd" into the out, buffer.
-
-## Customize the output
-
-Both `GenReST` and `GenReSTTree` have alternate versions with callbacks to get some control of the output:
-
-```go
-func GenReSTTreeCustom(cmd *Command, dir string, filePrepender func(string) string, linkHandler func(string, string) string) error {
-	//...
-}
-```
-
-```go
-func GenReSTCustom(cmd *Command, out *bytes.Buffer, linkHandler func(string, string) string) error {
-	//...
-}
-```
-
-The `filePrepender` will prepend the return value given the full filepath to the rendered ReST file. A common use case is to add front matter to use the generated documentation with [Hugo](http://gohugo.io/):
-
-```go
-const fmTemplate = `---
-date: %s
-title: "%s"
-slug: %s
-url: %s
----
-`
-filePrepender := func(filename string) string {
-	now := time.Now().Format(time.RFC3339)
-	name := filepath.Base(filename)
-	base := strings.TrimSuffix(name, path.Ext(name))
-	url := "/commands/" + strings.ToLower(base) + "/"
-	return fmt.Sprintf(fmTemplate, now, strings.Replace(base, "_", " ", -1), base, url)
-}
-```
-
-The `linkHandler` can be used to customize the rendered links to the commands, given a command name and reference. This is useful while converting rst to html or while generating documentation with tools like Sphinx where `:ref:` is used:
-
-```go
-// Sphinx cross-referencing format
-linkHandler := func(name, ref string) string {
-    return fmt.Sprintf(":ref:`%s <%s>`", name, ref)
-}
-```

vendor/github.com/spf13/cobra/doc/util.go

@@ -1,51 +0,0 @@
-// Copyright 2015 Red Hat Inc. All rights reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package doc
-
-import (
-	"strings"
-
-	"github.com/spf13/cobra"
-)
-
-// Test to see if we have a reason to print See Also information in docs
-// Basically this is a test for a parent command or a subcommand which is
-// both not deprecated and not the autogenerated help command.
-func hasSeeAlso(cmd *cobra.Command) bool {
-	if cmd.HasParent() {
-		return true
-	}
-	for _, c := range cmd.Commands() {
-		if !c.IsAvailableCommand() || c.IsAdditionalHelpTopicCommand() {
-			continue
-		}
-		return true
-	}
-	return false
-}
-
-// Temporary workaround for yaml lib generating incorrect yaml with long strings
-// that do not contain \n.
-func forceMultiLine(s string) string {
-	if len(s) > 60 && !strings.Contains(s, "\n") {
-		s = s + "\n"
-	}
-	return s
-}
-
-type byName []*cobra.Command
-
-func (s byName) Len() int           { return len(s) }
-func (s byName) Swap(i, j int)      { s[i], s[j] = s[j], s[i] }
-func (s byName) Less(i, j int) bool { return s[i].Name() < s[j].Name() }

vendor/github.com/spf13/cobra/doc/yaml_docs.go

@@ -1,174 +0,0 @@
-// Copyright 2016 French Ben. All rights reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package doc
-
-import (
-	"fmt"
-	"io"
-	"os"
-	"path/filepath"
-	"sort"
-	"strings"
-
-	"github.com/spf13/cobra"
-	"github.com/spf13/pflag"
-	"gopkg.in/yaml.v2"
-)
-
-type cmdOption struct {
-	Name         string
-	Shorthand    string `yaml:",omitempty"`
-	DefaultValue string `yaml:"default_value,omitempty"`
-	Usage        string `yaml:",omitempty"`
-}
-
-type cmdDoc struct {
-	Name             string
-	Synopsis         string      `yaml:",omitempty"`
-	Description      string      `yaml:",omitempty"`
-	Usage            string      `yaml:",omitempty"`
-	Options          []cmdOption `yaml:",omitempty"`
-	InheritedOptions []cmdOption `yaml:"inherited_options,omitempty"`
-	Example          string      `yaml:",omitempty"`
-	SeeAlso          []string    `yaml:"see_also,omitempty"`
-}
-
-// GenYamlTree creates yaml structured ref files for this command and all descendants
-// in the directory given. This function may not work
-// correctly if your command names have `-` in them. If you have `cmd` with two
-// subcmds, `sub` and `sub-third`, and `sub` has a subcommand called `third`
-// it is undefined which help output will be in the file `cmd-sub-third.1`.
-func GenYamlTree(cmd *cobra.Command, dir string) error {
-	identity := func(s string) string { return s }
-	emptyStr := func(s string) string { return "" }
-	return GenYamlTreeCustom(cmd, dir, emptyStr, identity)
-}
-
-// GenYamlTreeCustom creates yaml structured ref files.
-func GenYamlTreeCustom(cmd *cobra.Command, dir string, filePrepender, linkHandler func(string) string) error {
-	for _, c := range cmd.Commands() {
-		if !c.IsAvailableCommand() || c.IsAdditionalHelpTopicCommand() {
-			continue
-		}
-		if err := GenYamlTreeCustom(c, dir, filePrepender, linkHandler); err != nil {
-			return err
-		}
-	}
-
-	basename := strings.Replace(cmd.CommandPath(), " ", "_", -1) + ".yaml"
-	filename := filepath.Join(dir, basename)
-	f, err := os.Create(filename)
-	if err != nil {
-		return err
-	}
-	defer f.Close()
-
-	if _, err := io.WriteString(f, filePrepender(filename)); err != nil {
-		return err
-	}
-	if err := GenYamlCustom(cmd, f, linkHandler); err != nil {
-		return err
-	}
-	return nil
-}
-
-// GenYaml creates yaml output.
-func GenYaml(cmd *cobra.Command, w io.Writer) error {
-	return GenYamlCustom(cmd, w, func(s string) string { return s })
-}
-
-// GenYamlCustom creates custom yaml output.
-func GenYamlCustom(cmd *cobra.Command, w io.Writer, linkHandler func(string) string) error {
-	cmd.InitDefaultHelpCmd()
-	cmd.InitDefaultHelpFlag()
-
-	yamlDoc := cmdDoc{}
-	yamlDoc.Name = cmd.CommandPath()
-
-	yamlDoc.Synopsis = forceMultiLine(cmd.Short)
-	yamlDoc.Description = forceMultiLine(cmd.Long)
-
-	if cmd.Runnable() {
-		yamlDoc.Usage = cmd.UseLine()
-	}
-
-	if len(cmd.Example) > 0 {
-		yamlDoc.Example = cmd.Example
-	}
-
-	flags := cmd.NonInheritedFlags()
-	if flags.HasFlags() {
-		yamlDoc.Options = genFlagResult(flags)
-	}
-	flags = cmd.InheritedFlags()
-	if flags.HasFlags() {
-		yamlDoc.InheritedOptions = genFlagResult(flags)
-	}
-
-	if hasSeeAlso(cmd) {
-		result := []string{}
-		if cmd.HasParent() {
-			parent := cmd.Parent()
-			result = append(result, parent.CommandPath()+" - "+parent.Short)
-		}
-		children := cmd.Commands()
-		sort.Sort(byName(children))
-		for _, child := range children {
-			if !child.IsAvailableCommand() || child.IsAdditionalHelpTopicCommand() {
-				continue
-			}
-			result = append(result, child.Name()+" - "+child.Short)
-		}
-		yamlDoc.SeeAlso = result
-	}
-
-	final, err := yaml.Marshal(&yamlDoc)
-	if err != nil {
-		fmt.Println(err)
-		os.Exit(1)
-	}
-
-	if _, err := w.Write(final); err != nil {
-		return err
-	}
-	return nil
-}
-
-func genFlagResult(flags *pflag.FlagSet) []cmdOption {
-	var result []cmdOption
-
-	flags.VisitAll(func(flag *pflag.Flag) {
-		// Todo, when we mark a shorthand is deprecated, but specify an empty message.
-		// The flag.ShorthandDeprecated is empty as the shorthand is deprecated.
-		// Using len(flag.ShorthandDeprecated) > 0 can't handle this, others are ok.
-		if !(len(flag.ShorthandDeprecated) > 0) && len(flag.Shorthand) > 0 {
-			opt := cmdOption{
-				flag.Name,
-				flag.Shorthand,
-				flag.DefValue,
-				forceMultiLine(flag.Usage),
-			}
-			result = append(result, opt)
-		} else {
-			opt := cmdOption{
-				Name:         flag.Name,
-				DefaultValue: forceMultiLine(flag.DefValue),
-				Usage:        forceMultiLine(flag.Usage),
-			}
-			result = append(result, opt)
-		}
-	})
-
-	return result
-}

vendor/github.com/spf13/cobra/doc/yaml_docs.md

@@ -1,112 +0,0 @@
-# Generating Yaml Docs For Your Own cobra.Command
-
-Generating yaml files from a cobra command is incredibly easy. An example is as follows:
-
-```go
-package main
-
-import (
-	"log"
-
-	"github.com/spf13/cobra"
-	"github.com/spf13/cobra/doc"
-)
-
-func main() {
-	cmd := &cobra.Command{
-		Use:   "test",
-		Short: "my test program",
-	}
-	err := doc.GenYamlTree(cmd, "/tmp")
-	if err != nil {
-		log.Fatal(err)
-	}
-}
-```
-
-That will get you a Yaml document `/tmp/test.yaml`
-
-## Generate yaml docs for the entire command tree
-
-This program can actually generate docs for the kubectl command in the kubernetes project
-
-```go
-package main
-
-import (
-	"io/ioutil"
-	"log"
-	"os"
-
-	"k8s.io/kubernetes/pkg/kubectl/cmd"
-	cmdutil "k8s.io/kubernetes/pkg/kubectl/cmd/util"
-
-	"github.com/spf13/cobra/doc"
-)
-
-func main() {
-	kubectl := cmd.NewKubectlCommand(cmdutil.NewFactory(nil), os.Stdin, ioutil.Discard, ioutil.Discard)
-	err := doc.GenYamlTree(kubectl, "./")
-	if err != nil {
-		log.Fatal(err)
-	}
-}
-```
-
-This will generate a whole series of files, one for each command in the tree, in the directory specified (in this case "./")
-
-## Generate yaml docs for a single command
-
-You may wish to have more control over the output, or only generate for a single command, instead of the entire command tree. If this is the case you may prefer to `GenYaml` instead of `GenYamlTree`
-
-```go
-	out := new(bytes.Buffer)
-	doc.GenYaml(cmd, out)
-```
-
-This will write the yaml doc for ONLY "cmd" into the out, buffer.
-
-## Customize the output
-
-Both `GenYaml` and `GenYamlTree` have alternate versions with callbacks to get some control of the output:
-
-```go
-func GenYamlTreeCustom(cmd *Command, dir string, filePrepender, linkHandler func(string) string) error {
-	//...
-}
-```
-
-```go
-func GenYamlCustom(cmd *Command, out *bytes.Buffer, linkHandler func(string) string) error {
-	//...
-}
-```
-
-The `filePrepender` will prepend the return value given the full filepath to the rendered Yaml file. A common use case is to add front matter to use the generated documentation with [Hugo](http://gohugo.io/):
-
-```go
-const fmTemplate = `---
-date: %s
-title: "%s"
-slug: %s
-url: %s
----
-`
-
-filePrepender := func(filename string) string {
-	now := time.Now().Format(time.RFC3339)
-	name := filepath.Base(filename)
-	base := strings.TrimSuffix(name, path.Ext(name))
-	url := "/commands/" + strings.ToLower(base) + "/"
-	return fmt.Sprintf(fmTemplate, now, strings.Replace(base, "_", " ", -1), base, url)
-}
-```
-
-The `linkHandler` can be used to customize the rendered internal links to the commands, given a filename:
-
-```go
-linkHandler := func(name string) string {
-	base := strings.TrimSuffix(name, path.Ext(name))
-	return "/commands/" + strings.ToLower(base) + "/"
-}
-```

vendor/modules.txt

@@ -18,10 +18,6 @@ github.com/containerd/containerd/platforms
 # github.com/coreos/etcd v3.3.25+incompatible
 ## explicit
 github.com/coreos/etcd/raft/raftpb
-# github.com/cpuguy83/go-md2man/v2 v2.0.1
-## explicit
-github.com/cpuguy83/go-md2man/v2
-github.com/cpuguy83/go-md2man/v2/md2man
 # github.com/creack/pty v1.1.11
 ## explicit
 github.com/creack/pty
@@ -193,15 +189,12 @@ github.com/prometheus/common/model
 github.com/prometheus/procfs
 github.com/prometheus/procfs/internal/fs
 github.com/prometheus/procfs/internal/util
-# github.com/russross/blackfriday/v2 v2.1.0
-github.com/russross/blackfriday/v2
 # github.com/sirupsen/logrus v1.8.1
 ## explicit
 github.com/sirupsen/logrus
 # github.com/spf13/cobra v1.1.3
 ## explicit
 github.com/spf13/cobra
-github.com/spf13/cobra/doc
 # github.com/spf13/pflag v1.0.5
 ## explicit
 github.com/spf13/pflag