Carlos Florêncio
92 lines
3.9 KiB
Go
92 lines
3.9 KiB
Go
// Package worktree provides Git worktree management for concurrent agent execution.
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package worktree
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import (
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"errors"
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"fmt"
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"strings"
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)
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var (
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// ErrWorktreeExists is returned when attempting to create a worktree that already exists.
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ErrWorktreeExists = errors.New("worktree already exists for task")
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// ErrWorktreeNotFound is returned when the requested worktree does not exist.
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ErrWorktreeNotFound = errors.New("worktree not found")
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// ErrRepoNotGit is returned when the repository path is not a Git repository.
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ErrRepoNotGit = errors.New("repository is not a git repository")
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// ErrBranchExists is returned when the branch name already exists in the repository.
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ErrBranchExists = errors.New("branch already exists")
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// ErrWorktreeLocked is returned when the worktree is locked by another process.
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ErrWorktreeLocked = errors.New("worktree is locked by another process")
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// ErrInvalidBaseBranch is returned when the base branch does not exist.
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ErrInvalidBaseBranch = errors.New("base branch does not exist")
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// ErrWorktreeCorrupted is returned when the worktree directory is corrupted or invalid.
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ErrWorktreeCorrupted = errors.New("worktree directory is corrupted")
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// ErrGitCommandFailed is returned when a git command fails to execute.
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ErrGitCommandFailed = errors.New("git command failed")
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// ErrInvalidSession is returned when the session ID is invalid or empty.
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ErrInvalidSession = errors.New("invalid or empty session ID")
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// ErrBranchCheckedOut is returned when a branch is already checked out in another worktree.
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ErrBranchCheckedOut = errors.New("branch is already checked out in another worktree")
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// ErrAuthFailed is returned when git authentication fails (e.g. no credentials in non-interactive mode).
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ErrAuthFailed = errors.New("git authentication failed")
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// ErrNonFastForward is returned when a fetch/pull is rejected due to non-fast-forward updates.
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ErrNonFastForward = errors.New("non-fast-forward update rejected")
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// ErrGitCryptFailed is returned when git-crypt unlock fails during worktree creation.
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ErrGitCryptFailed = errors.New("git-crypt unlock failed")
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)
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// containsAuthFailure checks if git output indicates an authentication failure.
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func containsAuthFailure(lowerOutput string) bool {
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return strings.Contains(lowerOutput, "authentication failed") ||
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strings.Contains(lowerOutput, "terminal prompts disabled") ||
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strings.Contains(lowerOutput, "could not read username") ||
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strings.Contains(lowerOutput, "username for 'https://") ||
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strings.Contains(lowerOutput, "askpass")
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}
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// isBranchCheckedOutError checks if git output indicates a branch is already
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// checked out in another worktree. Different git versions use different messages:
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// "is already checked out at" or "is already used by worktree at".
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func isBranchCheckedOutError(output string) bool {
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out := strings.ToLower(output)
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return strings.Contains(out, "is already checked out at") ||
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strings.Contains(out, "is already used by worktree at")
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}
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// isFetchRefusedCheckedOut checks if a git fetch error is caused by the branch
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// being checked out in another worktree. Git refuses to update a local branch
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// ref that is currently checked out.
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func isFetchRefusedCheckedOut(output string) bool {
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return strings.Contains(strings.ToLower(output), "refusing to fetch into branch")
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}
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// ClassifyGitError wraps a raw git error with a user-friendly sentinel error
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// based on the command output.
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func ClassifyGitError(output string, _ error) error {
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trimmed := strings.TrimSpace(output)
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switch {
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case isBranchCheckedOutError(output):
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return fmt.Errorf("%w: %s", ErrBranchCheckedOut, trimmed)
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case containsAuthFailure(strings.ToLower(output)):
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return fmt.Errorf("%w: %s", ErrAuthFailed, trimmed)
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case strings.Contains(strings.ToLower(output), "non-fast-forward"):
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return fmt.Errorf("%w: %s", ErrNonFastForward, trimmed)
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default:
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return fmt.Errorf("%w: %s", ErrGitCommandFailed, trimmed)
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}
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}
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