From 1d2634f0ee90a95b05a5ba52a36a05f2505400af Mon Sep 17 00:00:00 2001
From: Igor Wiedler <igor@wiedler.ch>
Date: Sat, 12 Mar 2011 22:55:38 +0100
Subject: [ticket/9806] Script for merging pull requests

PHPBB3-9806
---
 git-tools/merge.php | 175 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 175 insertions(+)
 create mode 100755 git-tools/merge.php

(limited to 'git-tools/merge.php')

diff --git a/git-tools/merge.php b/git-tools/merge.php
new file mode 100755
index 0000000000..cbd84b896f
--- /dev/null
+++ b/git-tools/merge.php
@@ -0,0 +1,175 @@
+#!/usr/bin/env php
+<?php
+/**
+*
+* @package phpBB3
+* @copyright (c) 2011 phpBB Group
+* @license http://opensource.org/licenses/gpl-license.php GNU Public License
+*
+*/
+
+function show_usage()
+{
+	$filename = basename(__FILE__);
+
+	echo "$filename merges a github pull request.\n";
+	echo "\n";
+
+	echo "Usage: [php] $filename -p pull_request_id [OPTIONS]\n";
+	echo "\n";
+
+	echo "Options:\n";
+	echo " -p pull_request_id             The pull request id to be merged (mandatory)\n";
+	echo " -r remote                      Remote of upstream, defaults to 'upstream' (optional)\n";
+	echo " -d                             Outputs the commands instead of running them (optional)\n";
+	echo " -h                             This help text\n";
+
+	exit(2);
+}
+
+// Handle arguments
+$opts = getopt('p:r:dh');
+
+if (empty($opts) || isset($opts['h']))
+{
+	show_usage();
+}
+
+$pull_id	= get_arg($opts, 'p', '');
+$remote		= get_arg($opts, 'r', 'upstream');
+$dry_run	= !get_arg($opts, 'd', true);
+
+try
+{
+	exit(work($pull_id, $remote));
+}
+catch (RuntimeException $e)
+{
+	echo $e->getMessage();
+	exit($e->getCode());
+}
+
+function work($pull_id, $remote)
+{
+	// Get some basic data
+	$pull = get_pull('phpbb', 'phpbb3', $pull_id);
+
+	if (!$pull_id)
+	{
+		show_usage();
+	}
+
+	if ($pull['state'] != 'open')
+	{
+		throw new RuntimeException(sprintf("Error: pull request is closed\n",
+			$target_branch), 5);
+	}
+
+	$pull_user = $pull['head'][0];
+	$pull_branch = $pull['head'][1];
+	$target_branch = $pull['base'][1];
+
+	switch ($target_branch)
+	{
+		case 'develop-olympus':
+			run("git checkout develop-olympus");
+			run("git pull $remote develop-olympus");
+
+			add_remote($pull_user, 'phpbb3');
+			run("git fetch $pull_user");
+			run("git merge --no-ff $pull_user/$pull_branch");
+			run("phpunit");
+
+			run("git checkout develop");
+			run("git pull $remote develop");
+			run("git merge --no-ff develop-olympus");
+			run("phpunit");
+		break;
+
+		case 'develop':
+			run("git checkout develop");
+			run("git pull $remote develop");
+
+			add_remote($pull_user, 'phpbb3');
+			run("git fetch $pull_user");
+			run("git merge --no-ff $pull_user/$pull_branch");
+			run("phpunit");
+		break;
+
+		default:
+			throw new RuntimeException(sprintf("Error: pull request target branch '%s' is not a main branch\n",
+				$target_branch), 5);
+		break;
+	}
+}
+
+function add_remote($username, $repository, $pushable = false)
+{
+	$url = get_repository_url($username, $repository, false);
+	run("git remote add $username $url", true);
+
+	if ($pushable)
+	{
+		$ssh_url = get_repository_url($username, $repository, true);
+		run("git remote set-url --push $username $ssh_url");
+	}
+}
+
+function get_repository_url($username, $repository, $ssh = false)
+{
+	$url_base = ($ssh) ? 'git@github.com:' : 'git://github.com/';
+
+	return $url_base . $username . '/' . $repository . '.git';
+}
+
+function api_request($query)
+{
+	$contents = file_get_contents("http://github.com/api/v2/json/$query");
+
+	if ($contents === false)
+	{
+		throw new RuntimeException("Error: failed to retrieve pull request data\n", 4);
+	}
+
+	return json_decode($contents);
+}
+
+function get_pull($username, $repository, $pull_id)
+{
+	$request = api_request("pulls/$username/$repository/$pull_id");
+
+	$pull = $request->pull;
+
+	$pull_data = array(
+		'base'  => array($pull->base->user->login, $pull->base->ref),
+		'head'  => array($pull->head->user->login, $pull->head->ref),
+		'state' => $pull->state,
+	);
+
+	return $pull_data;
+}
+
+function get_arg($array, $index, $default)
+{
+	return isset($array[$index]) ? $array[$index] : $default;
+}
+
+function run($cmd, $ignore_fail = false)
+{
+	global $dry_run;
+
+	if (!empty($dry_run))
+	{
+		echo "$cmd\n";
+	}
+	else
+	{
+		passthru(escapeshellcmd($cmd), $status);
+
+		if ($status != 0 && !$ignore_fail)
+		{
+			throw new RuntimeException(sprintf("Error: command '%s' failed with status %s'\n",
+				$cmd, $status), 6);
+		}
+	}
+}
-- 
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