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phorge/src/applications/repository/engine/PhabricatorRepositoryMirrorEngine.php
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PhabricatorRepositoryMirrorEngine.php
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<?php
/**
* Pushes a repository to its mirrors.
*/
final class PhabricatorRepositoryMirrorEngine
extends PhabricatorRepositoryEngine {
public function pushToMirrors() {
$viewer = $this->getViewer();
$repository = $this->getRepository();
if (!$repository->canMirror()) {
return;
}
if (PhabricatorEnv::getEnvConfig('phabricator.silent')) {
$this->log(
pht('This software is running in silent mode; declining to mirror.'));
return;
}
$uris = id(new PhabricatorRepositoryURIQuery())
->setViewer($viewer)
->withRepositories(array($repository))
->execute();
$io_mirror = PhabricatorRepositoryURI::IO_MIRROR;
$exceptions = array();
foreach ($uris as $mirror) {
if ($mirror->getIsDisabled()) {
continue;
}
$io_type = $mirror->getEffectiveIOType();
if ($io_type != $io_mirror) {
continue;
}
try {
$this->pushRepositoryToMirror($repository, $mirror);
} catch (Exception $ex) {
$exceptions[] = $ex;
}
}
if ($exceptions) {
throw new PhutilAggregateException(
pht(
'Exceptions occurred while mirroring the "%s" repository.',
$repository->getDisplayName()),
$exceptions);
}
}
private function pushRepositoryToMirror(
PhabricatorRepository $repository,
PhabricatorRepositoryURI $mirror_uri) {
$this->log(
pht(
'Pushing to remote "%s"...',
$mirror_uri->getEffectiveURI()));
if ($repository->isGit()) {
$this->pushToGitRepository($repository, $mirror_uri);
} else if ($repository->isHg()) {
$this->pushToHgRepository($repository, $mirror_uri);
} else {
throw new Exception(pht('Unsupported VCS!'));
}
}
private function pushToGitRepository(
PhabricatorRepository $repository,
PhabricatorRepositoryURI $mirror_uri) {
// See T5965. Test if we have any refs to mirror. If we have nothing, git
// will exit with an error ("No refs in common and none specified; ...")
// when we run "git push --mirror".
// If we don't have any refs, we just bail out. (This is arguably sort of
// the wrong behavior: to mirror an empty repository faithfully we should
// delete everything in the remote.)
list($stdout) = $repository->execxLocalCommand(
'for-each-ref --count 1 --');
if (!strlen($stdout)) {
return;
}
$argv = array(
'push --verbose --mirror -- %P',
$mirror_uri->getURIEnvelope(),
);
$future = $mirror_uri->newCommandEngine()
->setArgv($argv)
->newFuture();
$future
->setCWD($repository->getLocalPath())
->resolvex();
}
private function pushToHgRepository(
PhabricatorRepository $repository,
PhabricatorRepositoryURI $mirror_uri) {
$argv = array(
'push --verbose --rev tip -- %P',
$mirror_uri->getURIEnvelope(),
);
$future = $mirror_uri->newCommandEngine()
->setArgv($argv)
->newFuture();
try {
$future
->setCWD($repository->getLocalPath())
->resolvex();
} catch (CommandException $ex) {
if (preg_match('/no changes found/', $ex->getStdout())) {
// mercurial says nothing changed, but that's good
} else {
throw $ex;
}
}
}
}

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