coder/cli/templatepull.go

129 lines
3.0 KiB
Go

package cli
import (
"bytes"
"fmt"
"os"
"sort"
"github.com/codeclysm/extract"
"golang.org/x/xerrors"
"github.com/coder/coder/cli/clibase"
"github.com/coder/coder/cli/cliui"
"github.com/coder/coder/codersdk"
)
func (r *RootCmd) templatePull() *clibase.Cmd {
var tarMode bool
client := new(codersdk.Client)
cmd := &clibase.Cmd{
Use: "pull <name> [destination]",
Short: "Download the latest version of a template to a path.",
Middleware: clibase.Chain(
clibase.RequireRangeArgs(1, 2),
r.InitClient(client),
),
Handler: func(inv *clibase.Invocation) error {
var (
ctx = inv.Context()
templateName = inv.Args[0]
dest string
)
if len(inv.Args) > 1 {
dest = inv.Args[1]
}
// TODO(JonA): Do we need to add a flag for organization?
organization, err := CurrentOrganization(inv, client)
if err != nil {
return xerrors.Errorf("current organization: %w", err)
}
template, err := client.TemplateByName(ctx, organization.ID, templateName)
if err != nil {
return xerrors.Errorf("template by name: %w", err)
}
// Pull the versions for the template. We'll find the latest
// one and download the source.
versions, err := client.TemplateVersionsByTemplate(ctx, codersdk.TemplateVersionsByTemplateRequest{
TemplateID: template.ID,
})
if err != nil {
return xerrors.Errorf("template versions by template: %w", err)
}
if len(versions) == 0 {
return xerrors.Errorf("no template versions for template %q", templateName)
}
// Sort the slice from newest to oldest template.
sort.SliceStable(versions, func(i, j int) bool {
return versions[i].CreatedAt.After(versions[j].CreatedAt)
})
latest := versions[0]
// Download the tar archive.
raw, ctype, err := client.Download(ctx, latest.Job.FileID)
if err != nil {
return xerrors.Errorf("download template: %w", err)
}
if ctype != codersdk.ContentTypeTar {
return xerrors.Errorf("unexpected Content-Type %q, expecting %q", ctype, codersdk.ContentTypeTar)
}
if tarMode {
_, err = inv.Stdout.Write(raw)
return err
}
if dest == "" {
dest = templateName + "/"
}
err = os.MkdirAll(dest, 0o750)
if err != nil {
return xerrors.Errorf("mkdirall %q: %w", dest, err)
}
ents, err := os.ReadDir(dest)
if err != nil {
return xerrors.Errorf("read dir %q: %w", dest, err)
}
if len(ents) > 0 {
_, err = cliui.Prompt(inv, cliui.PromptOptions{
Text: fmt.Sprintf("Directory %q is not empty, existing files may be overwritten.\nContinue extracting?", dest),
Default: "No",
Secret: false,
IsConfirm: true,
})
if err != nil {
return err
}
}
_, _ = fmt.Fprintf(inv.Stderr, "Extracting template to %q\n", dest)
err = extract.Tar(ctx, bytes.NewReader(raw), dest, nil)
return err
},
}
cmd.Options = clibase.OptionSet{
{
Description: "Output the template as a tar archive to stdout.",
Flag: "tar",
Value: clibase.BoolOf(&tarMode),
},
cliui.SkipPromptOption(),
}
return cmd
}