brew

https://github.com/homebrew/brew

Ruby

🍺 The missing package manager for macOS

DownloadLock#lock_or_wait

No Docs, write some!

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Edit

git clone [email protected]:homebrew/brew.git
cd brew
open Library/Homebrew/lock_file/download_lock.rb

Contribute

# Make a new branch
git checkout -b -your-name--update-docs-DownloadLock-lock_or_wait-for-pr

# Commit to git
git add Library/Homebrew/lock_file/download_lock.rbgit commit -m "better docs for DownloadLock#lock_or_wait"

# Open pull request
gem install hub # on a mac you can `brew install hub`
hub fork
git push <your name> -your-name--update-docs-DownloadLock-lock_or_wait-for-pr
hub pull-request

# Celebrate!