This repository has been archived on 2026-10-25. You can view files and clone it. You cannot open issues or pull requests or push a commit.
Files
Simon FrankenandClaude Opus 5.5 27f0c0b5d2 Fetch in the background and follow changes in the repositories
- On startup, after the local state is shown, fetch the superproject and
  every initialized submodule (all remotes, prune, at most 8 at once).
  Fetches never prompt; failures show git's message. --no-fetch skips it,
  f fetches again.
- The header shows "fetching n/m", then the fetch age and failures; the
  detail pane shows each submodule's last fetch and fetch errors.
- The git provider polls each repository's metadata (refs, HEAD, index,
  .gitmodules) every 2 s and reports changes. The app reloads only what
  changed, keeping old values, expansion and cursor; loads are
  single-flight with coalesced reruns. Refresh is driven by the
  repositories, so a fetch in another shell updates the view like ours.
- r reloads everything (worktree edits are not watched).
- Docs: F50-F53, N1/N8 rewritten, D18-D20 (D12 superseded).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-21 16:15:22 +02:00

71 lines
1.9 KiB
Go

package git
import (
"bytes"
"context"
"errors"
"os"
"os/exec"
"slices"
"strings"
)
// gitEnv keeps git non-interactive, lock-free for reads and its output
// parseable.
var gitEnv = append(os.Environ(),
"GIT_TERMINAL_PROMPT=0",
"GIT_OPTIONAL_LOCKS=0",
"LC_ALL=C",
)
// gitError is a failed git command; Stderr is git's message.
type gitError struct {
Args []string
Stderr string
Err error
}
func (e *gitError) Error() string {
msg := e.Stderr
if msg == "" {
msg = e.Err.Error()
}
return "git " + strings.Join(e.Args, " ") + ": " + msg
}
func (e *gitError) Unwrap() error { return e.Err }
// run executes git in dir and returns stdout with the trailing newline
// removed. The error includes git's stderr.
func run(ctx context.Context, dir string, args ...string) (string, error) {
return runEnv(ctx, dir, nil, args...)
}
// runEnv is run with additional environment variables.
func runEnv(ctx context.Context, dir string, env []string, args ...string) (string, error) {
cmd := exec.CommandContext(ctx, "git", append([]string{"-C", dir}, args...)...)
cmd.Env = slices.Concat(gitEnv, env) // a fresh slice: run is called concurrently
var stdout, stderr bytes.Buffer
cmd.Stdout, cmd.Stderr = &stdout, &stderr
if err := cmd.Run(); err != nil {
if ctx.Err() != nil {
return "", ctx.Err()
}
return "", &gitError{Args: args, Stderr: strings.TrimSpace(stderr.String()), Err: err}
}
return strings.TrimRight(stdout.String(), "\n"), nil
}
// try is run for commands whose failure only means "no answer", e.g.
// "no upstream" or "ref does not exist". Context errors still propagate.
func try(ctx context.Context, dir string, args ...string) (string, bool, error) {
out, err := run(ctx, dir, args...)
if err != nil {
if errors.Is(err, context.Canceled) || errors.Is(err, context.DeadlineExceeded) {
return "", false, err
}
return "", false, nil
}
return out, true, nil
}