3.9 KiB
3.9 KiB
git-advanced-workflows — detailed patterns and worked examples
Practical Workflows
Workflow 1: Clean Up Feature Branch Before PR
# Start with feature branch
git checkout feature/user-auth
# Interactive rebase to clean history
git rebase -i main
# Example rebase operations:
# - Squash "fix typo" commits
# - Reword commit messages for clarity
# - Reorder commits logically
# - Drop unnecessary commits
# Force push cleaned branch (safe if no one else is using it)
git push --force-with-lease origin feature/user-auth
Workflow 2: Apply Hotfix to Multiple Releases
# Create fix on main
git checkout main
git commit -m "fix: critical security patch"
# Apply to release branches
git checkout release/2.0
git cherry-pick abc123
git checkout release/1.9
git cherry-pick abc123
# Handle conflicts if they arise
git cherry-pick --continue
# or
git cherry-pick --abort
Workflow 3: Find Bug Introduction
# Start bisect
git bisect start
git bisect bad HEAD
git bisect good v2.1.0
# Git checks out middle commit - run tests
npm test
# If tests fail
git bisect bad
# If tests pass
git bisect good
# Git will automatically checkout next commit to test
# Repeat until bug found
# Automated version
git bisect start HEAD v2.1.0
git bisect run npm test
Workflow 4: Multi-Branch Development
# Main project directory
cd ~/projects/myapp
# Create worktree for urgent bugfix
git worktree add ../myapp-hotfix hotfix/critical-bug
# Work on hotfix in separate directory
cd ../myapp-hotfix
# Make changes, commit
git commit -m "fix: resolve critical bug"
git push origin hotfix/critical-bug
# Return to main work without interruption
cd ~/projects/myapp
git fetch origin
git cherry-pick hotfix/critical-bug
# Clean up when done
git worktree remove ../myapp-hotfix
Workflow 5: Recover from Mistakes
# Accidentally reset to wrong commit
git reset --hard HEAD~5 # Oh no!
# Use reflog to find lost commits
git reflog
# Output shows:
# abc123 HEAD@{0}: reset: moving to HEAD~5
# def456 HEAD@{1}: commit: my important changes
# Recover lost commits
git reset --hard def456
# Or create branch from lost commit
git branch recovery def456
Advanced Techniques
Rebase vs Merge Strategy
When to Rebase:
- Cleaning up local commits before pushing
- Keeping feature branch up-to-date with main
- Creating linear history for easier review
When to Merge:
- Integrating completed features into main
- Preserving exact history of collaboration
- Public branches used by others
# Update feature branch with main changes (rebase)
git checkout feature/my-feature
git fetch origin
git rebase origin/main
# Handle conflicts
git status
# Fix conflicts in files
git add .
git rebase --continue
# Or merge instead
git merge origin/main
Autosquash Workflow
Automatically squash fixup commits during rebase.
# Make initial commit
git commit -m "feat: add user authentication"
# Later, fix something in that commit
# Stage changes
git commit --fixup HEAD # or specify commit hash
# Make more changes
git commit --fixup abc123
# Rebase with autosquash
git rebase -i --autosquash main
# Git automatically marks fixup commits
Split Commit
Break one commit into multiple logical commits.
# Start interactive rebase
git rebase -i HEAD~3
# Mark commit to split with 'edit'
# Git will stop at that commit
# Reset commit but keep changes
git reset HEAD^
# Stage and commit in logical chunks
git add file1.py
git commit -m "feat: add validation"
git add file2.py
git commit -m "feat: add error handling"
# Continue rebase
git rebase --continue
Partial Cherry-Pick
Cherry-pick only specific files from a commit.
# Show files in commit
git show --name-only abc123
# Checkout specific files from commit
git checkout abc123 -- path/to/file1.py path/to/file2.py
# Stage and commit
git commit -m "cherry-pick: apply specific changes from abc123"