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DiffusionGitRequest.php
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Sun, Dec 1, 23:34

DiffusionGitRequest.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 DiffusionGitRequest extends DiffusionRequest {
protected function initializeFromAphrontRequestDictionary(array $data) {
parent::initializeFromAphrontRequestDictionary($data);
$path = $this->path;
$parts = explode('/', $path);
$branch = array_shift($parts);
if ($branch != ':') {
$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) {
$repository = $this->repository;
// 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 = $this->getBranch();
// TODO: Here, particularly, we should give the user a specific error
// message to indicate whether they've typed in some bogus branch and/or
// followed a bad link, or misconfigured the default branch in the
// Repository tool.
list($this->stableCommitName) = $repository->execxLocalCommand(
'rev-parse --verify %s/%s',
DiffusionBranchInformation::DEFAULT_GIT_REMOTE,
$branch);
if ($this->commit) {
list($commit) = $repository->execxLocalCommand(
'rev-parse --verify %s',
$this->commit);
// Beyond verifying them, expand commit short forms to full 40-character
// hashes.
$this->commit = trim($commit);
// If we have a commit, overwrite the branch commit with the more
// specific commit.
$this->stableCommitName = $this->commit;
/*
TODO: Unclear if this is actually a good idea or not; it breaks commit views
at the very least.
list($contains) = $repository->execxLocalCommand(
'branch --contains %s',
$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 $this->repository->getDetail('default-branch', 'master');
}
throw new Exception("Unable to determine branch!");
}
public function getUriPath() {
return '/diffusion/'.$this->getCallsign().'/browse/'.
$this->getBranchURIComponent($this->branch).$this->path;
}
public function getCommit() {
if ($this->commit) {
return $this->commit;
}
$remote = DiffusionBranchInformation::DEFAULT_GIT_REMOTE;
return $remote.'/'.$this->getBranch();
}
public function getStableCommitName() {
return substr($this->stableCommitName, 0, 16);
}
public function getBranchURIComponent($branch) {
return $this->encodeBranchName($branch).'/';
}
private function decodeBranchName($branch) {
$branch = str_replace(':', '/', $branch);
// Backward compatibility for older-style URIs which had an explicit
// "origin" remote in the branch name. If a remote is specified, strip it
// away.
if (strpos($branch, '/') !== false) {
$parts = explode('/', $branch);
$branch = end($parts);
}
return $branch;
}
private function encodeBranchName($branch) {
return str_replace('/', ':', $branch);
}
}

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