- git_out = `git status`
- git_out.match(/^# On branch (.*)\n/)
- if $1 # git 1.5.x
- branch = $1.dup || "unknown"
- changed = git_out.match(/^# Change(.*)\n/)
- rev = "revision "
- git_out = `git log -1 --pretty=format:"%h%n%s%n%ct"`.split("\n")
- rev << git_out.first
- subject = git_out[1].strip
- subject[77,subject.length] = "..." if subject.length > 80
- rev << " [#{subject}]" unless subject.empty?
- $version_timestamp = git_out.last.to_i
- rev << ", local changes" if changed
- else # older gits
- git_out = `git branch`
- git_out.match(/^\* (.*)\n/)
- branch = $1.dup rescue "unknown"
- rev = "revision " + `git rev-parse HEAD`[0,6]
+ git_out = `git log -1 --pretty=raw | git name-rev --stdin`.split("\n")
+ commit, branch_spec = git_out.first.scan(/^commit (\S+)(?: \((\S+)\))?$/).first
+ $version_timestamp = git_out[4].split[-2].to_i
+ subject = git_out[6].strip rescue ""
+ subject[77..-1] = "..." if subject.length > 80
+ rev = "revision #{commit[0,7]}"
+ rev << " [#{subject}]" unless subject.empty?
+ changes = `git diff-index --stat HEAD`.split("\n").last.split(", ").first rescue nil
+ rev << ", #{changes.strip}" if changes
+ if branch_spec
+ tag, branch, offset = branch_spec.scan(/^(?:(tag)s\/)?(\S+?)(?:^0)?(?:~(\d+))?$/).first
+ tag ||= "branch"
+ branch << " #{tag}"
+ branch << "-#{offset}" if offset
+ else
+ branch = "unknown branch"