Carlos Florêncio
54 lines
1.6 KiB
Go
54 lines
1.6 KiB
Go
package worktree
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import (
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"context"
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"os/exec"
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"strings"
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"go.uber.org/zap"
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)
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// getSubmodulePaths returns the paths of all submodules registered in HEAD.
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// It reads from the git object store (git ls-tree), so it works in --no-checkout worktrees.
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// Returns nil (not an error) if there are no submodules.
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func getSubmodulePaths(ctx context.Context, dir string) ([]string, error) {
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cmd := exec.CommandContext(ctx, "git", "ls-tree", "-r", "HEAD")
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cmd.Dir = dir
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output, err := runGitCmdOutput(ctx, cmd)
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if err != nil {
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return nil, err
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}
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var paths []string
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for _, line := range strings.Split(strings.TrimSpace(string(output)), "\n") {
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if line == "" {
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continue
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}
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// Format: "<mode> <type> <hash>\t<path>"
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// Submodules have mode 160000 and type "commit".
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if strings.HasPrefix(line, "160000 ") {
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if _, path, ok := strings.Cut(line, "\t"); ok {
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paths = append(paths, path)
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}
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}
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}
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return paths, nil
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}
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// initSubmodules runs "git submodule update --init --recursive" in the given directory.
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// Failures are non-fatal: submodule URLs may be unreachable (private repos,
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// missing credentials), but the worktree is still usable for non-submodule files.
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func (m *Manager) initSubmodules(ctx context.Context, dir string) {
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cmd := exec.CommandContext(ctx, "git", "submodule", "update", "--init", "--recursive")
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cmd.Dir = dir
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output, err := runGitCmdCombinedOutput(ctx, cmd)
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if err != nil {
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m.logger.Warn("git submodule update --init failed (non-fatal)",
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zap.String("dir", dir),
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zap.String("output", string(output)),
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zap.Error(err))
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return
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}
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m.logger.Debug("initialized submodules in worktree", zap.String("dir", dir))
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}
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