Ruby
Ruby versioning and Bundler tips for Zer0-Mistakes.
Table of Contents
Ruby & Bundler
Jekyll is built with Ruby. Understanding the basics helps with troubleshooting and customization.
Quick Reference
Check Versions
# Ruby version
ruby --version
# Bundler version
bundle --version
# Jekyll version
bundle exec jekyll --version
Common Commands
# Install dependencies from Gemfile
bundle install
# Update all gems
bundle update
# Update specific gem
bundle update jekyll
# Run Jekyll through Bundler
bundle exec jekyll serve
Key Files
| File | Purpose |
|---|---|
Gemfile |
Lists Ruby gem dependencies |
Gemfile.lock |
Locks exact versions |
jekyll-theme-zer0.gemspec |
Theme gem specification |
With Docker
When using Docker, Ruby commands run inside the container:
# Check Ruby version in container
docker-compose exec jekyll ruby --version
# Update gems in container
docker-compose exec jekyll bundle update
Troubleshooting
Gem Installation Errors
# Clear bundle cache
bundle clean --force
# Reinstall everything
rm -rf vendor/bundle
bundle install
Version Conflicts
# Check for outdated gems
bundle outdated
# Update Gemfile.lock
bundle update
Learn More
- Ruby 101 - Detailed Ruby basics
- Official Ruby Documentation
- Bundler Documentation
Related
See also
- [[Jekyll]]
- [[Docker]]
- [[Installation]]