rev_parse()
public
Converts the git reference for the repository into a commit hash.
# File lib/rubygems/source/git.rb, line 181
def rev_parse # :nodoc:
hash = nil
Dir.chdir repo_cache_dir do
hash = Gem::Util.popen(@git, 'rev-parse', @reference).strip
end
raise Gem::Exception,
"unable to find reference #{@reference} in #{@repository}" unless
$?.success?
hash
end