+#!/usr/bin/ruby1.9.1
+#-*- coding: utf-8 -*-
+
+require 'rubygems'
+require 'bundler'
+Bundler.setup
+
+require 'safe_yaml'
+SafeYAML::OPTIONS[:default_mode] = :safe
+
+if system('git rev-parse --quiet --verify HEAD >/dev/null')
+ against = 'HEAD'
+else
+ # Initial commit: diff against an empty tree object
+ against = '4b825dc642cb6eb9a060e54bf8d69288fbee4904'
+end
+
+def is_valid_subscription?(content)
+ content.length != 0 && YAML.load(content)
+end
+
+def is_valid_subscription_file?(file)
+ IO.popen(['git', 'show', ":#{file}"]) do |f|
+ is_valid_subscription?(f.read)
+ end
+end
+
+modified = []
+IO.popen(['git', 'diff-index', '--cached', '--name-status', against]) do |f|
+ f.readlines.each do |line|
+ status, file = line.strip.split("\t", 2)
+ # Has file been added or modified?
+ if ['A', 'M'].include?(status)
+ modified << file
+ if !is_valid_subscription_file?(file)
+ $stderr.puts "Désolé : #{file} n'a pas le bon format !"
+ exit 1
+ end
+ end
+ end
+end
+