better-testing

detect_copied_code.php
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			#!/usr/bin/env php
			<?php

			/*
			* Copyright 2012 Facebook, Inc.
			*
			* Licensed under the Apache License, Version 2.0 (the "License");
			* you may not use this file except in compliance with the License.
			* You may obtain a copy of the License at
			*
			* http://www.apache.org/licenses/LICENSE-2.0
			*
			* Unless required by applicable law or agreed to in writing, software
			* distributed under the License is distributed on an "AS IS" BASIS,
			* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
			* See the License for the specific language governing permissions and
			* limitations under the License.
			*/

			$root = dirname(dirname(dirname(__FILE__)));
			require_once $root.'/scripts/__init_script__.php';

			if ($argc != 3 \|\| !is_numeric($argv[1]) \|\| !is_numeric($argv[2])) {
			echo "Usage: {$argv[0]} <diff_id_from> <diff_id_to>\n";
			exit(1);
			}
			list(, $from, $to) = $argv;

			for ($diff_id = $from; $diff_id <= $to; $diff_id++) {
			echo "Processing $diff_id";
			$diff = id(new DifferentialDiff())->load($diff_id);
			if ($diff) {
			$diff->attachChangesets($diff->loadChangesets());
			$orig_copy = array();
			foreach ($diff->getChangesets() as $i => $changeset) {
			$orig_copy[$i] = idx((array)$changeset->getMetadata(), 'copy:lines');
			$changeset->attachHunks($changeset->loadHunks());
			}
			$diff->detectCopiedCode();
			foreach ($diff->getChangesets() as $i => $changeset) {
			if (idx($changeset->getMetadata(), 'copy:lines') \|\| $orig_copy[$i]) {
			echo ".";
			$changeset->save();
			}
			}
			}
			echo "\n";
			}

			echo "Done.\n";