mirror of https://github.com/docker/cli.git
82 lines
1.9 KiB
Go
82 lines
1.9 KiB
Go
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package kubernetes
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import (
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"sort"
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"github.com/docker/cli/cli"
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"github.com/docker/cli/cli/command"
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"github.com/docker/cli/cli/command/formatter"
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"github.com/spf13/cobra"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"vbom.ml/util/sortorder"
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)
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type listOptions struct {
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format string
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}
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func newListCommand(dockerCli command.Cli, kubeCli *kubeCli) *cobra.Command {
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opts := listOptions{}
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cmd := &cobra.Command{
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Use: "ls",
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Aliases: []string{"list"},
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Short: "List stacks",
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Args: cli.NoArgs,
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RunE: func(cmd *cobra.Command, args []string) error {
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return runList(dockerCli, kubeCli, opts)
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},
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}
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flags := cmd.Flags()
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flags.StringVar(&opts.format, "format", "", "Pretty-print stacks using a Go template")
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return cmd
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}
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func runList(dockerCli command.Cli, kubeCli *kubeCli, opts listOptions) error {
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stacks, err := getStacks(kubeCli)
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if err != nil {
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return err
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}
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format := opts.format
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if len(format) == 0 {
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format = formatter.TableFormatKey
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}
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stackCtx := formatter.Context{
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Output: dockerCli.Out(),
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Format: formatter.NewStackFormat(format),
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}
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sort.Sort(byName(stacks))
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return formatter.StackWrite(stackCtx, stacks)
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}
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type byName []*formatter.Stack
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func (n byName) Len() int { return len(n) }
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func (n byName) Swap(i, j int) { n[i], n[j] = n[j], n[i] }
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func (n byName) Less(i, j int) bool { return sortorder.NaturalLess(n[i].Name, n[j].Name) }
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func getStacks(kubeCli *kubeCli) ([]*formatter.Stack, error) {
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stackSvc, err := kubeCli.Stacks()
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if err != nil {
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return nil, err
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}
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stacks, err := stackSvc.List(metav1.ListOptions{})
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if err != nil {
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return nil, err
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}
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var formattedStacks []*formatter.Stack
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for _, stack := range stacks.Items {
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services, err := getServices(stack.Spec.ComposeFile)
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if err != nil {
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return nil, err
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}
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formattedStacks = append(formattedStacks, &formatter.Stack{
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Name: stack.Name,
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Services: len(services),
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})
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}
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return formattedStacks, nil
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}
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