update-buttercut（更新黄油）

Skill: Update ButterCut

Updates ButterCut to the latest version. Uses git pull if available, otherwise downloads from GitHub.

Before updating, always make a backup and encourage the user to save it to a location outside the ButterCut directory. Verify the most recent backup exists and offer to copy it to their Desktop or iCloud Drive.

Workflow

1. Check current version:

cat lib/buttercut/version.rb

2. Check if git repo:

git rev-parse --git-dir 2>/dev/null

3a. If git repo exists:

# Check for uncommitted changes
git status --porcelain

# If changes exist, STOP and inform user to commit/stash first

# Pull latest
git pull origin main
bundle install

3b. If not git repo:

# Download latest
curl -L https://github.com/barefootford/buttercut/archive/refs/heads/main.zip -o /tmp/buttercut-latest.zip
unzip -q /tmp/buttercut-latest.zip -d /tmp/

# Update files (excludes libraries/)
rsync -av --exclude 'libraries/' --exclude '.git/' /tmp/buttercut-main/ ./
bundle install
rm -rf /tmp/buttercut-latest.zip /tmp/buttercut-main

4. Verify:

cat lib/buttercut/version.rb
bundle exec rspec

If tests fail, STOP and report issue. Show old and new version numbers.