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phorge/src/applications/diffusion/conduit/ConduitAPI_diffusion_abstractquery_Method.php
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ConduitAPI_diffusion_abstractquery_Method.php
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<?php
/**
* @group conduit
*/
abstract class ConduitAPI_diffusion_abstractquery_Method
extends ConduitAPI_diffusion_Method {
public function getMethodStatus() {
return self::METHOD_STATUS_UNSTABLE;
}
public function getMethodStatusDescription() {
return pht(
'See T2784 - migrating diffusion working copy calls to conduit methods. '.
'Until that task is completed (and possibly after) these methods are '.
'unstable.');
}
private $diffusionRequest;
private $repository;
private $shouldCreateDiffusionRequest = true;
protected function setDiffusionRequest(DiffusionRequest $request) {
$this->diffusionRequest = $request;
return $this;
}
protected function getDiffusionRequest() {
return $this->diffusionRequest;
}
/**
* A wee bit of magic here. If @{method:shouldCreateDiffusionRequest}
* returns false, this function grabs a repository object based on the
* callsign directly. Otherwise, the repository was loaded when we created a
* @{class:DiffusionRequest}, so this function just pulls it out of the
* @{class:DiffusionRequest}.
*
* @return @{class:PhabricatorRepository} $repository
*/
protected function getRepository(ConduitAPIRequest $request) {
if (!$this->repository) {
if ($this->shouldCreateDiffusionRequest()) {
$this->repository = $this->getDiffusionRequest()->getRepository();
} else {
$callsign = $request->getValue('callsign');
$repository = id(new PhabricatorRepositoryQuery())
->setViewer($request->getUser())
->withCallsigns(array($callsign))
->executeOne();
if (!$repository) {
throw new ConduitException('ERR-UNKNOWN-REPOSITORY');
}
$this->repository = $repository;
}
}
return $this->repository;
}
/**
* You should probably not mess with this unless your conduit method is
* involved with the creation / validation / etc. of
* @{class:DiffusionRequest}s. If you are dealing with
* @{class:DiffusionRequest}, setting this to false should help avoid
* infinite loops.
*/
protected function setShouldCreateDiffusionRequest($should) {
$this->shouldCreateDiffusionRequest = $should;
return $this;
}
private function shouldCreateDiffusionRequest() {
return $this->shouldCreateDiffusionRequest;
}
final public function defineErrorTypes() {
return $this->defineCustomErrorTypes() +
array(
'ERR-UNKNOWN-REPOSITORY' =>
pht('There is no repository with that callsign.'),
'ERR-UNKNOWN-VCS-TYPE' =>
pht('Unknown repository VCS type.'),
'ERR-UNSUPPORTED-VCS' =>
pht('VCS is not supported for this method.'));
}
/**
* Subclasses should override this to specify custom error types.
*/
protected function defineCustomErrorTypes() {
return array();
}
final public function defineParamTypes() {
return $this->defineCustomParamTypes() +
array(
'callsign' => 'required string',
'branch' => 'optional string',
);
}
/**
* Subclasses should override this to specify custom param types.
*/
protected function defineCustomParamTypes() {
return array();
}
/**
* Subclasses should override these methods with the proper result for the
* pertinent version control system, e.g. getGitResult for Git.
*
* If the result is not supported for that VCS, do not implement it. e.g.
* Subversion (SVN) does not support branches.
*/
protected function getGitResult(ConduitAPIRequest $request) {
throw new ConduitException('ERR-UNSUPPORTED-VCS');
}
protected function getSVNResult(ConduitAPIRequest $request) {
throw new ConduitException('ERR-UNSUPPORTED-VCS');
}
protected function getMercurialResult(ConduitAPIRequest $request) {
throw new ConduitException('ERR-UNSUPPORTED-VCS');
}
/**
* This method is final because most queries will need to construct a
* @{class:DiffusionRequest} and use it. Consolidating this codepath and
* enforcing @{method:getDiffusionRequest} works when we need it is good.
*
* @{method:getResult} should be overridden by subclasses as necessary, e.g.
* there is a common operation across all version control systems that
* should occur after @{method:getResult}, like formatting a timestamp.
*
* In the rare cases where one does not want to create a
* @{class:DiffusionRequest} - suppose to avoid infinite loops in the
* creation of a @{class:DiffusionRequest} - make sure to call
*
* $this->setShouldCreateDiffusionRequest(false);
*
* in the constructor of the pertinent Conduit method.
*/
final protected function execute(ConduitAPIRequest $request) {
if ($this->shouldCreateDiffusionRequest()) {
$drequest = DiffusionRequest::newFromDictionary(
array(
'user' => $request->getUser(),
'callsign' => $request->getValue('callsign'),
'branch' => $request->getValue('branch'),
'path' => $request->getValue('path'),
'commit' => $request->getValue('commit'),
));
$this->setDiffusionRequest($drequest);
}
return $this->getResult($request);
}
protected function getResult(ConduitAPIRequest $request) {
$repository = $this->getRepository($request);
$result = null;
switch ($repository->getVersionControlSystem()) {
case PhabricatorRepositoryType::REPOSITORY_TYPE_GIT:
$result = $this->getGitResult($request);
break;
case PhabricatorRepositoryType::REPOSITORY_TYPE_MERCURIAL:
$result = $this->getMercurialResult($request);
break;
case PhabricatorRepositoryType::REPOSITORY_TYPE_SVN:
$result = $this->getSVNResult($request);
break;
default:
throw new ConduitException('ERR-UNKNOWN-VCS-TYPE');
break;
}
return $result;
}
}

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