Why is my Ruby Git script hook run with the wrong $PATH?

Question

I\'m using RVM. I wrote a Git pre-commit hook for a project:

#!/usr/bin/env ruby

puts RUBY_VERSION
puts `echo $PATH`
exit(1)

Answer 1

What I ended up doing is: the .git file structure:

• .git/hooks/pre-commit
• .git/hooks/pre-commit-main.rb

.git/hooks/pre-commit:

#!/usr/bin/env bash
export PATH="$THE_GOOD_PATH"
ruby "$GIT_DIR/hooks/pre-commit-main.rb"

.git/hooks/pre-commit-main.rb:

#!/usr/bin/env ruby
puts RUBY_VERSION

Then, when you call git commit, make sure that THE_GOOD_PATH, is defined:

export THE_GOOD_PATH="$PATH"
git commit

You could also export THE_GOOD_PATH="$PATH" from your .profile or the toplevel of your application and symlink all hooks to a single file.

This method has the advantage of being rbenv agnostic: it also works with RVM or Python virtualenv.

I wrote to the Git developers at: http://permalink.gmane.org/gmane.comp.version-control.git/258454 asking them to leave our PATH alone, but the initial reply was WONTFIX.