mirror of https://github.com/coder/coder.git
124 lines
3.1 KiB
Go
124 lines
3.1 KiB
Go
package cli
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import (
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"fmt"
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"io/fs"
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"os"
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"sort"
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"github.com/spf13/cobra"
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"golang.org/x/xerrors"
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"github.com/coder/coder/cli/cliui"
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"github.com/coder/coder/codersdk"
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)
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func templatePull() *cobra.Command {
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cmd := &cobra.Command{
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Use: "pull <name> [destination]",
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Short: "Download the latest version of a template to a path.",
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Args: cobra.RangeArgs(1, 2),
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RunE: func(cmd *cobra.Command, args []string) error {
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var (
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ctx = cmd.Context()
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templateName = args[0]
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dest string
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)
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if len(args) > 1 {
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dest = args[1]
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}
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client, err := CreateClient(cmd)
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if err != nil {
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return xerrors.Errorf("create client: %w", err)
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}
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// TODO(JonA): Do we need to add a flag for organization?
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organization, err := CurrentOrganization(cmd, client)
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if err != nil {
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return xerrors.Errorf("current organization: %w", err)
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}
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template, err := client.TemplateByName(ctx, organization.ID, templateName)
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if err != nil {
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return xerrors.Errorf("template by name: %w", err)
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}
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// Pull the versions for the template. We'll find the latest
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// one and download the source.
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versions, err := client.TemplateVersionsByTemplate(ctx, codersdk.TemplateVersionsByTemplateRequest{
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TemplateID: template.ID,
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})
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if err != nil {
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return xerrors.Errorf("template versions by template: %w", err)
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}
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if len(versions) == 0 {
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return xerrors.Errorf("no template versions for template %q", templateName)
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}
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// Sort the slice from newest to oldest template.
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sort.SliceStable(versions, func(i, j int) bool {
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return versions[i].CreatedAt.After(versions[j].CreatedAt)
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})
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latest := versions[0]
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// Download the tar archive.
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raw, ctype, err := client.Download(ctx, latest.Job.FileID)
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if err != nil {
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return xerrors.Errorf("download template: %w", err)
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}
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if ctype != codersdk.ContentTypeTar {
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return xerrors.Errorf("unexpected Content-Type %q, expecting %q", ctype, codersdk.ContentTypeTar)
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}
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// If the destination is empty then we write to stdout
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// and bail early.
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if dest == "" {
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_, err = cmd.OutOrStdout().Write(raw)
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if err != nil {
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return xerrors.Errorf("write stdout: %w", err)
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}
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return nil
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}
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// Stat the destination to ensure nothing exists already.
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fi, err := os.Stat(dest)
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if err != nil && !xerrors.Is(err, fs.ErrNotExist) {
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return xerrors.Errorf("stat destination: %w", err)
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}
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if fi != nil && fi.IsDir() {
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// If the destination is a directory we just bail.
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return xerrors.Errorf("%q already exists.", dest)
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}
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// If a file exists at the destination prompt the user
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// to ensure we don't overwrite something valuable.
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if fi != nil {
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_, err = cliui.Prompt(cmd, cliui.PromptOptions{
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Text: fmt.Sprintf("%q already exists, do you want to overwrite it?", dest),
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IsConfirm: true,
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})
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if err != nil {
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return xerrors.Errorf("parse prompt: %w", err)
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}
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}
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err = os.WriteFile(dest, raw, 0o600)
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if err != nil {
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return xerrors.Errorf("write to path: %w", err)
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}
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return nil
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},
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}
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cliui.AllowSkipPrompt(cmd)
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return cmd
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}
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