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phorge/src/applications/repository/engine/PhabricatorRepositoryEngine.php
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PhabricatorRepositoryEngine.php
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<?php
/**
* @task config Configuring Repository Engines
* @task internal Internals
*/
abstract class PhabricatorRepositoryEngine {
private $repository;
private $verbose;
/**
* @task config
*/
public function setRepository(PhabricatorRepository $repository) {
$this->repository = $repository;
return $this;
}
/**
* @task config
*/
protected function getRepository() {
if ($this->repository === null) {
throw new PhutilInvalidStateException('setRepository');
}
return $this->repository;
}
/**
* @task config
*/
public function setVerbose($verbose) {
$this->verbose = $verbose;
return $this;
}
/**
* @task config
*/
public function getVerbose() {
return $this->verbose;
}
public function getViewer() {
return PhabricatorUser::getOmnipotentUser();
}
/**
* Verify that the "origin" remote exists, and points at the correct URI.
*
* This catches or corrects some types of misconfiguration, and also repairs
* an issue where Git 1.7.1 does not create an "origin" for `--bare` clones.
* See T4041.
*
* @param PhabricatorRepository Repository to verify.
* @return void
*/
protected function verifyGitOrigin(PhabricatorRepository $repository) {
list($remotes) = $repository->execxLocalCommand(
'remote show -n origin');
$matches = null;
if (!preg_match('/^\s*Fetch URL:\s*(.*?)\s*$/m', $remotes, $matches)) {
throw new Exception(
"Expected 'Fetch URL' in 'git remote show -n origin'.");
}
$remote_uri = $matches[1];
$expect_remote = $repository->getRemoteURI();
if ($remote_uri == 'origin') {
// If a remote does not exist, git pretends it does and prints out a
// made up remote where the URI is the same as the remote name. This is
// definitely not correct.
// Possibly, we should use `git remote --verbose` instead, which does not
// suffer from this problem (but is a little more complicated to parse).
$valid = false;
$exists = false;
} else {
$normal_type_git = PhabricatorRepositoryURINormalizer::TYPE_GIT;
$remote_normal = id(new PhabricatorRepositoryURINormalizer(
$normal_type_git,
$remote_uri))->getNormalizedPath();
$expect_normal = id(new PhabricatorRepositoryURINormalizer(
$normal_type_git,
$expect_remote))->getNormalizedPath();
$valid = ($remote_normal == $expect_normal);
$exists = true;
}
if (!$valid) {
if (!$exists) {
// If there's no "origin" remote, just create it regardless of how
// strongly we own the working copy. There is almost no conceivable
// scenario in which this could do damage.
$this->log(
pht(
'Remote "origin" does not exist. Creating "origin", with '.
'URI "%s".',
$expect_remote));
$repository->execxLocalCommand(
'remote add origin %P',
$repository->getRemoteURIEnvelope());
// NOTE: This doesn't fetch the origin (it just creates it), so we won't
// know about origin branches until the next "pull" happens. That's fine
// for our purposes, but might impact things in the future.
} else {
if ($repository->canDestroyWorkingCopy()) {
// Bad remote, but we can try to repair it.
$this->log(
pht(
'Remote "origin" exists, but is pointed at the wrong URI, "%s". '.
'Resetting origin URI to "%s.',
$remote_uri,
$expect_remote));
$repository->execxLocalCommand(
'remote set-url origin %P',
$repository->getRemoteURIEnvelope());
} else {
// Bad remote and we aren't comfortable repairing it.
$message = pht(
'Working copy at "%s" has a mismatched origin URI, "%s". '.
'The expected origin URI is "%s". Fix your configuration, or '.
'set the remote URI correctly. To avoid breaking anything, '.
'Phabricator will not automatically fix this.',
$repository->getLocalPath(),
$remote_uri,
$expect_remote);
throw new Exception($message);
}
}
}
}
/**
* @task internal
*/
protected function log($pattern /* ... */) {
if ($this->getVerbose()) {
$console = PhutilConsole::getConsole();
$argv = func_get_args();
array_unshift($argv, "%s\n");
call_user_func_array(array($console, 'writeOut'), $argv);
}
return $this;
}
}

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