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VariableBuildStepImplementation.php
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Thu, May 8, 08:48

VariableBuildStepImplementation.php
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<?php
abstract class VariableBuildStepImplementation extends BuildStepImplementation {
public function retrieveVariablesFromBuild(HarbormasterBuild $build) {
$results = array(
'buildable.revision' => null,
'buildable.commit' => null,
'repository.callsign' => null,
'repository.vcs' => null,
'repository.uri' => null,
'step.timestamp' => null,
'build.id' => null);
$buildable = $build->getBuildable();
$object = $buildable->getBuildableObject();
$repo = null;
if ($object instanceof DifferentialDiff) {
$revision = $object->getRevision();
$results['buildable.revision'] = $revision->getID();
$repo = $revision->getRepository();
} else if ($object instanceof PhabricatorRepositoryCommit) {
$results['buildable.commit'] = $object->getCommitIdentifier();
$repo = $object->getRepository();
}
$results['repository.callsign'] = $repo->getCallsign();
$results['repository.vcs'] = $repo->getVersionControlSystem();
$results['repository.uri'] = $repo->getPublicRemoteURI();
$results['step.timestamp'] = time();
$results['build.id'] = $build->getID();
return $results;
}
/**
* Convert a user-provided string with variables in it, like:
*
* ls ${dirname}
*
* ...into a string with variables merged into it safely:
*
* ls 'dir with spaces'
*
* @param string Name of a `vxsprintf` function, like @{function:vcsprintf}.
* @param string User-provided pattern string containing `${variables}`.
* @param dict List of available replacement variables.
* @return string String with variables replaced safely into it.
*/
protected function mergeVariables($function, $pattern, array $variables) {
$regexp = '/\\$\\{(?P<name>[a-z\\.]+)\\}/';
$matches = null;
preg_match_all($regexp, $pattern, $matches);
$argv = array();
foreach ($matches['name'] as $name) {
if (!array_key_exists($name, $variables)) {
throw new Exception(pht("No such variable '%s'!", $name));
}
$argv[] = $variables[$name];
}
$pattern = str_replace('%', '%%', $pattern);
$pattern = preg_replace($regexp, '%s', $pattern);
return call_user_func($function, $pattern, $argv);
}
public function getAvailableVariables() {
return array(
'buildable.revision' =>
pht('The differential revision ID, if applicable.'),
'buildable.commit' => pht('The commit identifier, if applicable.'),
'repository.callsign' =>
pht('The callsign of the repository in Phabricator.'),
'repository.vcs' =>
pht('The version control system, either "svn", "hg" or "git".'),
'repository.uri' =>
pht('The URI to clone or checkout the repository from.'),
'step.timestamp' => pht('The current UNIX timestamp.'),
'build.id' => pht('The ID of the current build.'));
}
public function getSettingRemarkupInstructions() {
$text = '';
$text .= pht('The following variables are available: ')."\n";
$text .= "\n";
foreach ($this->getAvailableVariables() as $name => $desc) {
$text .= ' - `'.$name.'`: '.$desc."\n";
}
$text .= "\n";
$text .= "Use `\${name}` to merge a variable into a setting.";
return $text;
}
}

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