A short ruby script for running status/fetch on multiple repositories

git_all.rb

# Installation:
# Add the following to your .bashrc
#
# alias gitall='ruby ~/devel/git_all/git_all.rb'
# 
# Usage:
#
# gitall status
# gitall fetch
#
# projects.yml structure:
#
# <project_name>:
#   dir: <project path on local>
#   remotes: <array of origins>
#
# eg:
#
# git_all:
#   dir: /Users/harbogast/devel/git_all
#   remotes: macbook
#
# big_project:
#   dir: /Users/harbogast/devel/big_project
#   remotes: [origin, github, macbook]
#
# Sample output from 'gitall status'
# ================================================================================
# Project: git_all
# cd /Users/harbogast/devel/git_all
# --------------------------------------------------
# git status
# # On branch master
# # Changes not staged for commit:
# #   (use "git add <file>..." to update what will be committed)
# #   (use "git checkout -- <file>..." to discard changes in working directory)
# #
# #	modified:   git_all.rb
# #
# no changes added to commit (use "git add" and/or "git commit -a")
# # 
#
# Sample output from 'gitall fetch'
# ================================================================================
# Project: big_project
# cd /Users/harbogast/devel/big_project
# --------------------------------------------------
# git fetch origin
# remote: Counting objects: 13, done.
# remote: Compressing objects: 100% (7/7), done.
# remote: Total 8 (delta 1), reused 0 (delta 0)
# Unpacking objects: 100% (8/8), done.
# From git.workrepo.com:big_project
#    00aa670..442b1c4  live       -> origin/live
#    9aaf839..442b1c4  master     -> origin/master
#    9aaf839..442b1c4  staging    -> origin/staging
#  * [new tag]         rel_00060_20120531090739_staging -> rel_00060_20120531090739_staging
#  * [new tag]         rel_00061_20120531090856_live -> rel_00061_20120531090856_live
# --------------------------------------------------
# git fetch macbook
# From macbook.harbogast.local:/Users/harbogast/devel/work/big_project
#    73a0885..442b1c4  live       -> macbook/live
#    bac2c2e..442b1c4  master     -> macbook/master
#    87bc16d..442b1c4  staging    -> macbook/staging
# 
#
# Note: The 'cd /Users/harbogast/devel/git_all' line is output to allow for a quick and dirty
# triple-click/copy/new-tab/paste for jumping into a project directory to do a merge or rebase

require 'yaml'
require 'fileutils'
include FileUtils

class GitProjects

	def initialize
		@projects = YAML::load( File.open( File.dirname(__FILE__)+'/projects.yml' ) )
		@project_names = []
		@projects.each do |name, project|
			@project_names << name
		end
		@project_names.sort!
	end

	def status params=[]
		@project_names.each do |name|
			project = @projects[name]
			heavy_line
			project_settings name, project
			cd(project['dir'])
			thin_line
			cd(project['dir'])
			ex("git status")
		end
		heavy_line
	end

	def fetch remotes=[]
		@project_names.each do |name|
			project = @projects[name]
			heavy_line
			project_settings name, project
			cd(project['dir'])
			if remotes == []
				project['remotes'].each do |remote|
					thin_line
					ex("git fetch #{remote}")
				end
			else
				remotes.each do |remote|
					thin_line
					ex("git fetch #{remote}")
				end
			end
		end
		heavy_line
	end

protected

	def ex command
		log command
		system(command)
	end

	def log str
		puts str
	end

	def project_settings name, project
		if project['dir'].nil?
			raise Exception.new "project directory not set for #{name}"
		end
		log "Project: #{name}"
		log "cd #{project['dir']}"
	end

	def thin_line
		log "-"*50
	end

	def heavy_line
		log "="*80
	end

end

gp = GitProjects.new
gp.send ARGV[0], ARGV[1..-1]