/hotfix

Git Flow Hotfix Branch

Create emergency hotfix branch: $ARGUMENTS

Current Repository State

• Current branch: !git branch --show-current
• Git status: !git status --porcelain
• Latest production tag: !git describe --tags --abbrev=0 origin/main 2>/dev/null || echo "No tags on main"
• Main branch status: !git log main..origin/main --oneline 2>/dev/null | head -3 || echo "No remote tracking for main"
• Commits on main since last tag: !git log $(git describe --tags --abbrev=0 origin/main 2>/dev/null)..origin/main --oneline 2>/dev/null | wc -l | tr -d ' '

Task

Create a Git Flow hotfix branch for emergency production fixes:

1. Pre-Flight Validation

Critical Checks:

• Verify hotfix name: Ensure $ARGUMENTS is provided and descriptive
  • ✅ Valid: critical-security-patch, payment-gateway-fix, auth-bypass-fix
  • ❌ Invalid: fix, hotfix1, bug
• Check main branch exists: Ensure main branch is present
• Verify no uncommitted changes: Clean working directory required
• Confirm emergency status: Hotfixes are for CRITICAL production issues only

⚠️ IMPORTANT: Hotfix Usage Guidelines

Hotfixes are ONLY for:

• 🔒 Critical security vulnerabilities
• 💥 Production-breaking bugs
• 💰 Payment/transaction failures
• 🚨 Data loss or corruption issues
• 🔥 System downtime or crashes

NOT for:

• ❌ Regular bug fixes (use feature branch)
• ❌ New features (use feature branch)
• ❌ Performance improvements (use feature branch)
• ❌ Non-critical issues (wait for next release)

2. Create Hotfix Branch Workflow

# Switch to main branch
git checkout main

# Pull latest production code
git pull origin main

# Create hotfix branch from main
git checkout -b hotfix/$ARGUMENTS

# Set up remote tracking
git push -u origin hotfix/$ARGUMENTS

3. Determine Version Bump

Analyze the latest tag to suggest hotfix version:

Current production version: v1.2.0
Hotfix version: v1.2.1

Version bump: PATCH (third number incremented)

Hotfix Version Rules:

• Always increment PATCH version (X.Y.Z → X.Y.Z+1)
• Never increment MAJOR or MINOR for hotfixes
• Examples:
  • v1.2.0 → v1.2.1
  • v2.0.5 → v2.0.6
  • v1.5.9 → v1.5.10

4. Success Response

✓ Switched to main branch
✓ Pulled latest production code from origin/main
✓ Created branch: hotfix/$ARGUMENTS
✓ Set up remote tracking: origin/hotfix/$ARGUMENTS
✓ Pushed branch to remote

🔥 Hotfix Branch Ready: hotfix/$ARGUMENTS

Branch: hotfix/$ARGUMENTS
Base: main (production)
Will merge to: main AND develop
Suggested version: v1.2.1

⚠️ CRITICAL HOTFIX WORKFLOW

This is an EMERGENCY production fix. Follow these steps:

1. 🔍 Identify the Issue
   - Reproduce the bug
   - Understand the root cause
   - Document the impact

2. 🛠️ Implement the Fix
   - Make MINIMAL changes
   - Focus ONLY on the critical issue
   - Avoid refactoring or improvements
   - Add tests to prevent regression

3. 🧪 Test Thoroughly
   - Test the specific fix
   - Run full regression tests
   - Test on production-like environment
   - Verify no side effects

4. 📝 Document the Fix
   - Update version in package.json
   - Add entry to CHANGELOG.md
   - Document the bug and fix
   - Include reproduction steps

5. 🚀 Deploy Process
   - Create PR to main
   - Get expedited review
   - Run /finish to merge and tag
   - Deploy to production immediately
   - Monitor for issues

🎯 Next Steps:
1. Fix the critical issue (MINIMAL changes only)
2. Test thoroughly: npm test
3. Update version: v1.2.1
4. Create emergency PR: gh pr create --label "hotfix,critical"
5. Get fast-track approval
6. Run /finish to merge to main AND develop
7. Deploy to production
8. Monitor systems closely

⚠️ Remember:
- Hotfix will be merged to BOTH main and develop
- Tag v1.2.1 will be created on main
- Production deployment should happen immediately
- Team should be notified of the hotfix

5. Error Handling

No Hotfix Name Provided:

❌ Hotfix name is required

Usage: /hotfix <hotfix-name>

Examples:
  /hotfix critical-security-patch
  /hotfix payment-processing-failure
  /hotfix auth-bypass-vulnerability

⚠️ IMPORTANT: Hotfixes are for CRITICAL production issues only!

For non-critical fixes, use:
  /feature <name> - Regular bug fixes

Invalid Hotfix Name:

❌ Invalid hotfix name: "fix"

Hotfix names should be:
- Descriptive of the issue
- Use kebab-case format
- Indicate severity/urgency

Examples:
  ✅ critical-security-patch
  ✅ payment-gateway-timeout
  ✅ user-data-corruption-fix
  ❌ fix
  ❌ bug1
  ❌ hotfix

Uncommitted Changes:

⚠️  Uncommitted changes detected in working directory:
M  src/file.js
A  test.js

Hotfixes require a clean working directory.

Options:
1. Commit your changes first
2. Stash them: git stash
3. Discard them: git checkout .

⚠️ This is an emergency hotfix. Please clean your working directory.

Main Branch Behind Remote:

⚠️  Local main is behind origin/main by 2 commits

✓ Pulling latest production code...
✓ Fetched 2 commits
✓ Main is now synchronized with production
✓ Ready to create hotfix branch

Not a Critical Issue:

⚠️  Hotfix Confirmation Required

Is this a CRITICAL production issue that requires immediate attention?

Critical issues include:
- Security vulnerabilities
- Production system failures
- Data loss or corruption
- Payment/transaction failures

If this is NOT critical, consider:
- Creating a feature branch instead
- Waiting for the next release cycle
- Using regular bug fix workflow

Proceed with hotfix? [y/N]

6. Hotfix Checklist

🔥 Emergency Hotfix Checklist

Issue Identification:
- [ ] Bug is confirmed and reproducible
- [ ] Root cause is identified
- [ ] Impact is documented
- [ ] Stakeholders are notified

Development:
- [ ] Fix is minimal and focused
- [ ] No unnecessary changes included
- [ ] Tests added to prevent regression
- [ ] Code reviewed (if time permits)

Testing:
- [ ] Fix verified in local environment
- [ ] Unit tests passing
- [ ] Integration tests passing
- [ ] Tested on production-like environment
- [ ] No side effects detected

Documentation:
- [ ] CHANGELOG.md updated
- [ ] Version bumped (PATCH)
- [ ] Bug description documented
- [ ] Fix explanation documented
- [ ] Deployment notes prepared

Deployment:
- [ ] PR created with "hotfix" and "critical" labels
- [ ] Fast-track approval obtained
- [ ] Production deployment plan ready
- [ ] Rollback plan documented
- [ ] Monitoring alerts configured
- [ ] Team notified of deployment

Post-Deployment:
- [ ] Fix verified in production
- [ ] Systems monitored for issues
- [ ] Metrics show improvement
- [ ] Hotfix merged back to develop
- [ ] Post-mortem scheduled (if needed)

7. Version Update Process

After implementing the fix, update the version:

# Update package.json version (PATCH bump)
npm version patch --no-git-tag-version

# Update CHANGELOG.md
cat >> CHANGELOG.md << EOF

## [v1.2.1] - $(date +%Y-%m-%d) - HOTFIX

### 🔥 Critical Fixes
- Fix $ARGUMENTS: [brief description]
  - Root cause: [explanation]
  - Impact: [who/what was affected]
  - Resolution: [what was fixed]

EOF

# Commit version bump
git add package.json CHANGELOG.md
git commit -m "chore(hotfix): bump version to v1.2.1

Critical fix for $ARGUMENTS

🤖 Generated with Claude Code
Co-Authored-By: Claude <noreply@anthropic.com>"

8. Create Emergency PR

gh pr create \
  --title "🔥 HOTFIX v1.2.1: $ARGUMENTS" \
  --body "$(cat <<'EOF'
## 🔥 Emergency Hotfix

**Severity**: Critical
**Version**: v1.2.1
**Issue**: $ARGUMENTS

## Problem Description

[Detailed description of the production issue]

## Root Cause

[Explanation of what caused the issue]

## Fix Implementation

[Description of the fix applied]

## Testing

- [x] Issue reproduced locally
- [x] Fix verified locally
- [x] Unit tests passing
- [x] Integration tests passing
- [x] Tested on staging environment

## Deployment Plan

1. Merge to main
2. Tag as v1.2.1
3. Deploy to production immediately
4. Monitor for 30 minutes
5. Merge back to develop

## Rollback Plan

[How to rollback if issues occur]

## Monitoring

[What to monitor post-deployment]

---

**⚠️ This is a critical production hotfix requiring immediate deployment**

🤖 Generated with Claude Code
EOF
)" \
  --base main \
  --head hotfix/$ARGUMENTS \
  --label "hotfix,critical,priority-high" \
  --assignee @me \
  --reviewer team-leads

Git Flow Integration

Hotfix Workflow in Git Flow:

main (v1.2.0) ──────┬─────────────► (after hotfix merge) v1.2.1
                    │
                    └─► hotfix/$ARGUMENTS
                         │
                         └─► (merges back to both)
                             │
develop ────────────────────┴─────────────► (receives hotfix)

Important:

• Hotfixes branch from main (production)
• Hotfixes merge to BOTH main AND develop
• Tags are created on main after merge
• Production deployment happens immediately

Environment Variables

• GIT_FLOW_MAIN_BRANCH: Main branch name (default: "main")
• GIT_FLOW_DEVELOP_BRANCH: Develop branch name (default: "develop")
• GIT_FLOW_PREFIX_HOTFIX: Hotfix prefix (default: "hotfix/")

Related Commands

• /finish - Complete hotfix (merge to main and develop, create tag, deploy)
• /git-flow:status - Check current Git Flow status
• /feature <name> - Create feature branch (for non-critical fixes)
• /release <version> - Create release branch

Best Practices

DO:

• ✅ Use hotfixes ONLY for critical production issues
• ✅ Keep changes minimal and focused
• ✅ Test thoroughly before deploying
• ✅ Document the issue and fix clearly
• ✅ Notify team immediately
• ✅ Merge back to develop after production deployment
• ✅ Monitor production closely after deployment
• ✅ Conduct post-mortem if appropriate

DON'T:

• ❌ Use hotfix for regular bug fixes
• ❌ Add new features to hotfix
• ❌ Refactor code during hotfix
• ❌ Skip testing to save time
• ❌ Forget to merge back to develop
• ❌ Deploy without proper review
• ❌ Skip documentation
• ❌ Ignore monitoring after deployment

Post-Hotfix Actions

After successful hotfix deployment:

1. Verify Fix in Production

   • Monitor error rates
   • Check affected functionality
   • Verify metrics return to normal

2. Update Documentation

   • Document the incident
   • Update runbooks if needed
   • Share learnings with team

3. Merge to Develop

   • Ensure hotfix is in develop branch
   • Resolve any merge conflicts
   • Push to remote

4. Post-Mortem (if needed)

   • Schedule review meeting
   • Identify prevention measures
   • Update processes if needed

5. Cleanup

   • Delete hotfix branch
   • Archive related documentation
   • Update incident tracking