post-commit git hook for simple deploys

README.md

Put the ruby file in .git/hooks/post-commit

Create a deploy script as .deploy_*

Example:

# File: .deploy_production
scp -R html example.com:public_html

Then use "deploy *" in your commit message.

Example:

git commit -a -m'Finish styling. Deploy production'

Don't forget to make sure that both .git/hooks/post-commit and .deploy_* have execution permissions

gistfile1.rb

#!/usr/bin/env ruby -W -rpathname


Root = Pathname.new(__FILE__).join('../../..').expand_path

class Deployer
  attr_reader :environments
  def initialize
    @environments = {}
  end

  def process
    scan_files
    scan_commit_message
  end

  def deploy(enviroment)
    Dir.chdir Root do
      system "bash -c ./#{ environments[enviroment] }"
    end
  end

private
  def scan_files
    Dir.chdir Root do
      Dir['.deploy_*'].each do |file|
        env_name = file.match(/.deploy_([^\.]+)/)[1]
        @environments[env_name] = file
      end
    end
  end

  def environments_regex
    @environments.keys.join('|')
  end

  def scan_commit_message
    message = `git log  -1 HEAD --format=format:%B`

    if environments.empty? && message.match(/deploy\s+(\w+)/i)
      puts "It looks like you are trying to deploy, but you have no deploy scripts"
      puts "Try creating .deploy_#{ $1 }"
    end

    if message.match(/deploy\s+(#{ environments_regex })/i)
      deploy $1
    end
  end

end


if Dir.exist? Root.join('.git')
  Deployer.new.process
else
  puts "Expected to be in .git/hooks directory. Giving up."
end