Jujutsu (JJ) is a Git-compatible VCS with a focus on concurrent development and ease of use.

Key Commands

| jj st | Show working copy status

| jj log | Show change log

| jj diff | Show changes in working copy

| jj new | Create new change

| jj desc | Edit change description

| jj squash | Move changes to parent

| jj split | Split current change

| jj rebase -s src -d dest | Rebase changes

| jj absorb | Move changes into stack of mutable revisions

| jj bisect | Find bad revision by bisection

| jj fix | Update files with formatting fixes

| jj sign | Cryptographically sign a revision

| jj metaedit | Modify metadata without changing content

Project Setup

jj git init              # Init in existing git repo
jj git init --colocate   # Side-by-side with git

Basic Workflow

jj new                   # Create new change
jj desc -m "feat: add feature"  # Set description
jj log                   # View history
jj edit change-id        # Switch to change
jj new --before @        # Time travel (create before current)
jj edit @-               # Go to parent

Time Travel

jj edit change-id        # Switch to specific change
jj next --edit           # Next child change
jj edit @-               # Parent change
jj new --before @ -m msg # Insert before current

Merging & Rebasing

jj new x yz -m msg       # Merge changes
jj rebase -s src -d dest # Rebase source onto dest
jj abandon              # Delete current change

Conflicts

jj resolve              # Interactive conflict resolution
# Edit files, then continue

Templates & Revsets

jj log -T 'commit_id ++ "\n" ++ description'
jj log -r 'heads(all())'    # All heads
jj log -r 'remote_bookmarks()..'  # Not on remote
jj log -r 'author(name)'    # By author

Git Interop

jj bookmark create main -r @  # Create bookmark
jj git push --bookmark main   # Push bookmark
jj git fetch                 # Fetch from remote
jj bookmark track main@origin # Track remote

Advanced Commands

jj absorb               # Auto-move changes to relevant commits in stack
jj bisect start         # Start bisection
jj bisect good          # Mark current as good
jj bisect bad           # Mark current as bad
jj fix                  # Run configured formatters on files
jj sign -r @            # Sign current revision
jj metaedit -r @ -m "new message"  # Edit metadata only

Tips

No staging: changes are immediate
Use conventional commits: type(scope): desc
jj undo to revert operations
jj op log to see operation history
Bookmarks are like branches
Concurrent development encouraged
jj absorb is powerful for fixing up commits in a stack

jujutsu

安装