Function completeLinks

cli/command/container/completion.go:189–212

completeLinks implements shell completion for the `--link` option of `rm --link`. It contacts the API to get names of legacy links on containers. In case of an error, an empty list is returned.

(dockerCLI completion.APIClientProvider)

// It contacts the API to get names of legacy links on containers.
// In case of an error, an empty list is returned.
func completeLinks(dockerCLI completion.APIClientProvider) cobra.CompletionFunc {
	return func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
		res, err := dockerCLI.Client().ContainerList(cmd.Context(), client.ContainerListOptions{
			All: true,
		})
		if err != nil {
			return nil, cobra.ShellCompDirectiveError
		}
		var names []string
		for _, ctr := range res.Items {
			if len(ctr.Names) <= 1 {
				// Container has no links names.
				continue
			}
			for _, n := range ctr.Names {
				// Skip legacy link names: "/linked-container/link-name"
				if len(n) > 1 && strings.IndexByte(n[1:], '/') != -1 {
					names = append(names, strings.TrimPrefix(n, "/"))
				}
			}
		}
		return names, cobra.ShellCompDirectiveNoFileComp
	}
}

// completeLogDriver implements shell completion for the `--log-driver` option  of `run` and `create`.
// The log drivers are collected from a call to the Info endpoint with a fallback to a hard-coded list