git-commit && change committer and author automatically

README.md

git-commit-auto

1. Clone

$ git clone http://gist.github.com/5675296.git /path/to/somewhere
$ echo 'export PATH="/path/to/somewhere:$PATH"' >> ~/.bashrc
$ source ~/.bashrc

2. Add settings to ~/.gitconfig

[exuser-github]
    url-regexp = github.com
    name = "Foo Bar"
    email = foo@private.com
[exuser-ghe]
    url-regexp = git.company.com
    name = "Foo Bar"
    email = bar@company.com
[alias]
    ci = commit-auto

3. You can use git ci or git commit-auto like git commit

git-commit-auto

#!/usr/bin/env ruby
remote = `git-remote show -n origin`
remote_url = remote.match(/Push  URL: (.+)/)[1]

config = {}
`git-config --get-regexp "exuser-.+\."`.split("\n").map do |c|
  c.split(" ", 2)
end.each do |c|
  data = c.first.match(/exuser-(.+)\.(.+)/)
  config[data[1]] ||= {}
  config[data[1]][data[2]] = c.last
end

if config.empty?
  $stderr.puts <<EOS
No user setting found. You should add to ~/.gitconfig like the following.
------
[exuser-github]
    url-regexp = github.com
    name = "Foo Bar"
    email = foo@private.com
[exuser-ghe]
    url-regexp = git.company.com
    name = "Foo Bar"
    email = bar@company.com
------
EOS
  exit 1
end

matched = nil
config.each_pair do |name, c|
  matched = remote_url.match(c["url-regexp"])
  next if matched.nil?
  matched = c
  break
end

if matched.nil?
  $stderr.puts "No user setting matched. Abort."
  $stderr.puts "Remote Url: #{remote_url}"
  exit 1
end

system "git-commit", *ARGV

unless $?.exitstatus == 0
  exit $?.exitstatus
end

system <<EOS
  git-filter-branch -f --commit-filter '
    GIT_COMMITTER_NAME="#{matched["name"]}";
    GIT_AUTHOR_NAME="#{matched["name"]}";
    GIT_COMMITTER_EMAIL="#{matched["email"]}";
    GIT_AUTHOR_EMAIL="#{matched["email"]}";
    git commit-tree "$@";
  ' HEAD~1..HEAD
EOS

exit $?.exitstatus