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phorge/src/applications/diffusion/query/rawdiff/git/DiffusionGitRawDiffQuery.php
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DiffusionGitRawDiffQuery.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 DiffusionGitRawDiffQuery extends DiffusionRawDiffQuery {
protected function executeQuery() {
$drequest = $this->getRequest();
$repository = $drequest->getRepository();
$commit = $drequest->getCommit();
$options = array(
'-M',
'-C',
'--no-ext-diff',
'--no-color',
'--src-prefix=a/',
'--dst-prefix=b/',
'-U'.(int)$this->getLinesOfContext(),
);
$options = implode(' ', $options);
// If there's no path, get the entire raw diff.
$path = nonempty($drequest->getPath(), '.');
$future = $repository->getLocalCommandFuture(
"diff %C %s^ %s -- %s",
$options,
$commit,
$commit,
$path);
if ($this->getTimeout()) {
$future->setTimeout($this->getTimeout());
}
try {
list($raw_diff) = $future->resolvex();
} catch (CommandException $ex) {
// Check if this is the root commit by seeing if it has parents.
list($parents) = $repository->execxLocalCommand(
'log --format=%s %s --',
'%P', // "parents"
$commit);
if (strlen(trim($parents))) {
throw $ex;
}
// No parents means we're looking at the root revision. Diff against
// the empty tree hash instead, since there is no parent so "^" does
// not work. See ArcanistGitAPI for more discussion.
$future = $repository->getLocalCommandFuture(
'diff %C %s %s -- %s',
$options,
ArcanistGitAPI::GIT_MAGIC_ROOT_COMMIT,
$commit,
$drequest->getPath());
if ($this->getTimeout()) {
$future->setTimeout($this->getTimeout());
}
list($raw_diff) = $future->resolvex();
}
return $raw_diff;
}
}

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