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DiffusionGitRenameHistoryQuery.php
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Sat, Apr 26, 01:38

DiffusionGitRenameHistoryQuery.php
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<?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.
*/
final class DiffusionGitRenameHistoryQuery
extends DiffusionRenameHistoryQuery {
protected function executeQuery() {
$drequest = $this->getRequest();
$repository = $drequest->getRepository();
list($err, $stdout) = $repository->execLocalCommand(
'log --format=%s --follow --find-copies-harder -M -C --summary '.
'%s..%s -- %s',
'%x20',
$this->getOldCommit(),
$drequest->getCommit(),
$drequest->getPath());
if ($err) {
return null;
}
$lines = explode("\n", $stdout);
$lines = array_map('trim', $lines);
$lines = array_filter($lines);
$name = null;
foreach ($lines as $line) {
list($action, $info) = explode(' ', $line, 2);
switch ($action) {
case 'rename':
// We support these cases:
// rename README => README.txt (100%)
// rename src/README => README (100%)
// rename src/{README => README.txt} (100%)
// rename {resources => rsrc}/README (100%)
// rename src/{aphront => }/README (100%)
// rename src/{ => aphront}/README (100%)
// rename src/{docs => ducks}/README (100%)
$matches = null;
$ok = preg_match(
'/^(.*){(.*) => (.*)}(.*) \([0-9%]+\)$/',
$info,
$matches);
if ($ok) {
$name = $matches[1].ltrim($matches[2].$matches[4], '/');
} else {
$ok = preg_match(
'/^(.*) => (.*) \([0-9%]+\)$/',
$info,
$matches);
if (!$ok) {
throw new Exception(
"Unparseable git log --summary line: {$line}.");
}
$name = $matches[1];
}
break;
case 'create':
// create mode 100644 <filename>
$this->setWasCreated(true);
break;
default:
// Anything else we care about?
break;
}
}
return $name;
}
}

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