DockerCLI/cmd/docker/builder_test.go

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package main
import (
"bytes"
"os"
"runtime"
"testing"
"github.com/docker/cli/cli/command"
"github.com/docker/cli/internal/test/output"
"gotest.tools/v3/assert"
"gotest.tools/v3/fs"
)
var pluginFilename = "docker-buildx"
func init() {
if runtime.GOOS == "windows" {
pluginFilename = pluginFilename + ".exe"
}
}
func TestBuildWithBuilder(t *testing.T) {
dir := fs.NewDir(t, t.Name(),
fs.WithFile(pluginFilename, `#!/bin/sh
echo '{"SchemaVersion":"0.1.0","Vendor":"Docker Inc.","Version":"v0.6.3","ShortDescription":"Build with BuildKit"}'`, fs.WithMode(0777)),
)
defer dir.Remove()
var b bytes.Buffer
dockerCli, err := command.NewDockerCli(command.WithInputStream(discard), command.WithCombinedStreams(&b))
assert.NilError(t, err)
dockerCli.ConfigFile().CLIPluginsExtraDirs = []string{dir.Path()}
tcmd := newDockerCommand(dockerCli)
tcmd.SetArgs([]string{"build", "."})
cmd, args, err := tcmd.HandleGlobalFlags()
assert.NilError(t, err)
args, os.Args, err = processBuilder(dockerCli, cmd, args, os.Args)
assert.NilError(t, err)
assert.DeepEqual(t, []string{builderDefaultPlugin, "build", "."}, args)
}
func TestBuildkitDisabled(t *testing.T) {
t.Setenv("DOCKER_BUILDKIT", "0")
dir := fs.NewDir(t, t.Name(),
fs.WithFile(pluginFilename, `#!/bin/sh exit 1`, fs.WithMode(0777)),
)
defer dir.Remove()
b := bytes.NewBuffer(nil)
dockerCli, err := command.NewDockerCli(command.WithInputStream(discard), command.WithCombinedStreams(b))
assert.NilError(t, err)
dockerCli.ConfigFile().CLIPluginsExtraDirs = []string{dir.Path()}
tcmd := newDockerCommand(dockerCli)
tcmd.SetArgs([]string{"build", "."})
cmd, args, err := tcmd.HandleGlobalFlags()
assert.NilError(t, err)
args, os.Args, err = processBuilder(dockerCli, cmd, args, os.Args)
assert.NilError(t, err)
assert.DeepEqual(t, []string{"build", "."}, args)
output.Assert(t, b.String(), map[int]func(string) error{
0: output.Suffix("DEPRECATED: The legacy builder is deprecated and will be removed in a future release."),
})
}
func TestBuilderBroken(t *testing.T) {
dir := fs.NewDir(t, t.Name(),
fs.WithFile(pluginFilename, `#!/bin/sh exit 1`, fs.WithMode(0777)),
)
defer dir.Remove()
b := bytes.NewBuffer(nil)
dockerCli, err := command.NewDockerCli(command.WithInputStream(discard), command.WithCombinedStreams(b))
assert.NilError(t, err)
dockerCli.ConfigFile().CLIPluginsExtraDirs = []string{dir.Path()}
tcmd := newDockerCommand(dockerCli)
tcmd.SetArgs([]string{"build", "."})
cmd, args, err := tcmd.HandleGlobalFlags()
assert.NilError(t, err)
args, os.Args, err = processBuilder(dockerCli, cmd, args, os.Args)
assert.NilError(t, err)
assert.DeepEqual(t, []string{"build", "."}, args)
output.Assert(t, b.String(), map[int]func(string) error{
0: output.Prefix("failed to fetch metadata:"),
2: output.Suffix("DEPRECATED: The legacy builder is deprecated and will be removed in a future release."),
})
}
func TestBuilderBrokenEnforced(t *testing.T) {
t.Setenv("DOCKER_BUILDKIT", "1")
dir := fs.NewDir(t, t.Name(),
fs.WithFile(pluginFilename, `#!/bin/sh exit 1`, fs.WithMode(0777)),
)
defer dir.Remove()
b := bytes.NewBuffer(nil)
dockerCli, err := command.NewDockerCli(command.WithInputStream(discard), command.WithCombinedStreams(b))
assert.NilError(t, err)
dockerCli.ConfigFile().CLIPluginsExtraDirs = []string{dir.Path()}
tcmd := newDockerCommand(dockerCli)
tcmd.SetArgs([]string{"build", "."})
cmd, args, err := tcmd.HandleGlobalFlags()
assert.NilError(t, err)
args, os.Args, err = processBuilder(dockerCli, cmd, args, os.Args)
assert.DeepEqual(t, []string{"build", "."}, args)
output.Assert(t, err.Error(), map[int]func(string) error{
0: output.Prefix("failed to fetch metadata:"),
2: output.Suffix("ERROR: BuildKit is enabled but the buildx component is missing or broken."),
})
}