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phab/src/applications/diffusion/query/mergedcommits/mercurial/DiffusionMercurialMergedCommitsQuery.php
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DiffusionMercurialMergedCommitsQuery.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 DiffusionMercurialMergedCommitsQuery
extends DiffusionMergedCommitsQuery {
protected function executeQuery() {
$request = $this->getRequest();
$repository = $request->getRepository();
list($parents) = $repository->execxLocalCommand(
'parents --template=%s --rev %s',
'{node}\\n',
$request->getCommit());
$parents = explode("\n", trim($parents));
if (count($parents) < 2) {
// Not a merge commit.
return array();
}
// NOTE: In Git, the first parent is the "mainline". In Mercurial, the
// second parent is the "mainline" (the way 'git merge' and 'hg merge'
// work is also reversed).
$last_parent = last($parents);
list($logs) = $repository->execxLocalCommand(
'log --template=%s --follow --limit %d --rev %s:0 --prune %s --',
'{node}\\n',
$this->getLimit() + 1,
$request->getCommit(),
$last_parent);
$hashes = explode("\n", trim($logs));
// Remove the merge commit.
$hashes = array_diff($hashes, array($request->getCommit()));
return $this->loadHistoryForCommitIdentifiers($hashes);
}
}
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