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DiffusionGitRequest.php
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DiffusionGitRequest.php
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<?php
/*
* Copyright 2011 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.
*/
class DiffusionGitRequest extends DiffusionRequest {
protected function initializeFromAphrontRequestDictionary() {
parent::initializeFromAphrontRequestDictionary();
$path = $this->path;
$parts = explode('/', $path);
$branch = array_shift($parts);
$this->branch = $this->decodeBranchName($branch);
foreach ($parts as $key => $part) {
// Prevent any hyjinx since we're ultimately shipping this to the
// filesystem under a lot of git workflows.
if ($part == '..') {
unset($parts[$key]);
}
}
$this->path = implode('/', $parts);
if ($this->repository) {
$local_path = $this->repository->getDetail('local-path');
// TODO: This is not terribly efficient and does not produce terribly
// good error messages, but it seems better to put error handling code
// here than to try to do it in every query.
$branch = $this->getBranch();
execx(
'(cd %s && git rev-parse --verify %s)',
$local_path,
$branch);
if ($this->commit) {
list($commit) = execx(
'(cd %s && git rev-parse --verify %s)',
$local_path,
$this->commit);
// Beyond verifying them, expand commit short forms to full 40-character
// sha1s.
$this->commit = trim($commit);
/*
TODO: Unclear if this is actually a good idea or not; it breaks commit views
at the very least.
list($contains) = execx(
'(cd %s && git branch --contains %s)',
$local_path,
$this->commit);
$contains = array_filter(explode("\n", $contains));
$found = false;
foreach ($contains as $containing_branch) {
$containing_branch = trim($containing_branch, "* \n");
if ($containing_branch == $branch) {
$found = true;
break;
}
}
if (!$found) {
throw new Exception(
"Commit does not exist on this branch!");
}
*/
}
}
}
public function getBranch() {
if ($this->branch) {
return $this->branch;
}
if ($this->repository) {
return $this->repository->getDetail('default-branch', 'origin/master');
}
throw new Exception("Unable to determine branch!");
}
public function getUriPath() {
return '/diffusion/'.$this->getCallsign().'/browse/'.
$this->branch.'/'.$this->path;
}
public function getCommit() {
if ($this->commit) {
return $this->commit;
}
return $this->getBranch();
}
public function getBranchURIComponent($branch) {
return $this->encodeBranchName($branch).'/';
}
private function decodeBranchName($branch) {
return str_replace(':', '/', $branch);
}
private function encodeBranchName($branch) {
return str_replace('/', ':', $branch);
}
}

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