#!/bin/env ruby -w

# Pull remote changes for several directories at once
# if they are git directories.
#
# AUTHOR: Geoffrey Grosenbach
#         April 28, 2009
#
# USAGE:
#
#   gitup repos/*

require "optparse"

options = {
  :recurse => false,
  :verbose => false,
}

ARGV.options do |opts|
  opts.banner = "Usage:  #{File.basename($PROGRAM_NAME)} [OPTIONS] [DIRECTORY]"

  opts.separator ""
  opts.separator "Common Options:"

  opts.on( "-h", "--help",
  "Show this message." ) do
    puts opts
    exit
  end
  opts.on( "-r", "--recurse",
  "Recurse into subdirectories, looking for .git" ) do
    options[:recurse] = true
  end
  opts.on( "-v", "--verbose",
  "Output extra info." ) do
    options[:verbose] = true
  end

  begin
    opts.parse!
  rescue
    puts opts
    exit
  end
end

dirs = ARGV.first ? ARGV : [options[:recurse] ? './**/*' : './*']

Dir[*dirs].each do |project|
  if File.exist?(File.join(project, '.git'))
    puts "== Updating #{project}"
    system "cd #{project} && git pull && git --no-pager status"
  else
    puts "Skipping: #{project}" if options[:verbose]
  end
end