git-advanced-workflows

# Git Advanced Workflows

Master advanced Git techniques to maintain clean history, collaborate effectively, and recover from any situation with confidence.

## When to Use This Skill

- Cleaning up commit history before merging
- Applying specific commits across branches
- Finding commits that introduced bugs
- Working on multiple features simultaneously
- Recovering from Git mistakes or lost commits
- Managing complex branch workflows
- Preparing clean PRs for review
- Synchronizing diverged branches

## Core Concepts

### 1. Interactive Rebase

Interactive rebase is the Swiss Army knife of Git history editing.

**Common Operations:**
- `pick`: Keep commit as-is
- `reword`: Change commit message
- `edit`: Amend commit content
- `squash`: Combine with previous commit
- `fixup`: Like squash but discard message
- `drop`: Remove commit entirely

**Basic Usage:**
```bash
# Rebase last 5 commits
git rebase -i HEAD~5

# Rebase all commits on current branch
git rebase -i $(git merge-base HEAD main)

# Rebase onto specific commit
git rebase -i abc123
```

### 2. Cherry-Picking

Apply specific commits from one branch to another without merging entire branches.

```bash
# Cherry-pick single commit
git cherry-pick abc123

# Cherry-pick range of commits (exclusive start)
git cherry-pick abc123..def456

# Cherry-pick without committing (stage changes only)
git cherry-pick -n abc123

# Cherry-pick and edit commit message
git cherry-pick -e abc123
```

### 3. Git Bisect

Binary search through commit history to find the commit that introduced a bug.

```bash
# Start bisect
git bisect start

# Mark current commit as bad
git bisect bad

# Mark known good commit
git bisect good v1.0.0

# Git will checkout middle commit - test it
# Then mark as good or bad
git bisect good  # or: git bisect bad

# Continue until bug found
# When done
git bisect reset
```

**Automated Bisect:**
```bash
# Use script to test automatically
git bisect start HEAD v1.0.0
git bisect run ./test.sh

# test.sh sh