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phorge/src/applications/harbormaster/step/HarbormasterBuildStepImplementation.php
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HarbormasterBuildStepImplementation.php
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<?php
/**
* @task autotarget Automatic Targets
*/
abstract class HarbormasterBuildStepImplementation extends Phobject {
private $settings;
private $currentWorkerTaskID;
public function setCurrentWorkerTaskID($id) {
$this->currentWorkerTaskID = $id;
return $this;
}
public function getCurrentWorkerTaskID() {
return $this->currentWorkerTaskID;
}
public static function getImplementations() {
return id(new PhutilClassMapQuery())
->setAncestorClass(__CLASS__)
->execute();
}
public static function getImplementation($class) {
$base = idx(self::getImplementations(), $class);
if ($base) {
return (clone $base);
}
return null;
}
public static function requireImplementation($class) {
if (!$class) {
throw new Exception(pht('No implementation is specified!'));
}
$implementation = self::getImplementation($class);
if (!$implementation) {
throw new Exception(pht('No such implementation "%s" exists!', $class));
}
return $implementation;
}
/**
* The name of the implementation.
*/
abstract public function getName();
public function getBuildStepGroupKey() {
return HarbormasterOtherBuildStepGroup::GROUPKEY;
}
/**
* The generic description of the implementation.
*/
public function getGenericDescription() {
return '';
}
/**
* The description of the implementation, based on the current settings.
*/
public function getDescription() {
return $this->getGenericDescription();
}
public function getEditInstructions() {
return null;
}
/**
* Run the build target against the specified build.
*/
abstract public function execute(
HarbormasterBuild $build,
HarbormasterBuildTarget $build_target);
/**
* Gets the settings for this build step.
*/
public function getSettings() {
return $this->settings;
}
public function getSetting($key, $default = null) {
return idx($this->settings, $key, $default);
}
/**
* Loads the settings for this build step implementation from a build
* step or target.
*/
final public function loadSettings($build_object) {
$this->settings = $build_object->getDetails();
return $this;
}
/**
* Return the name of artifacts produced by this command.
*
* Future steps will calculate all available artifact mappings
* before them and filter on the type.
*
* @return array The mappings of artifact names to their types.
*/
public function getArtifactInputs() {
return array();
}
public function getArtifactOutputs() {
return array();
}
public function getDependencies(HarbormasterBuildStep $build_step) {
$dependencies = $build_step->getDetail('dependsOn', array());
$inputs = $build_step->getStepImplementation()->getArtifactInputs();
$inputs = ipull($inputs, null, 'key');
$artifacts = $this->getAvailableArtifacts(
$build_step->getBuildPlan(),
$build_step,
null);
foreach ($artifacts as $key => $type) {
if (!array_key_exists($key, $inputs)) {
unset($artifacts[$key]);
}
}
$artifact_steps = ipull($artifacts, 'step');
$artifact_steps = mpull($artifact_steps, 'getPHID');
$dependencies = array_merge($dependencies, $artifact_steps);
return $dependencies;
}
/**
* Returns a list of all artifacts made available in the build plan.
*/
public static function getAvailableArtifacts(
HarbormasterBuildPlan $build_plan,
$current_build_step,
$artifact_type) {
$steps = id(new HarbormasterBuildStepQuery())
->setViewer(PhabricatorUser::getOmnipotentUser())
->withBuildPlanPHIDs(array($build_plan->getPHID()))
->execute();
$artifacts = array();
$artifact_arrays = array();
foreach ($steps as $step) {
if ($current_build_step !== null &&
$step->getPHID() === $current_build_step->getPHID()) {
continue;
}
$implementation = $step->getStepImplementation();
$array = $implementation->getArtifactOutputs();
$array = ipull($array, 'type', 'key');
foreach ($array as $name => $type) {
if ($type !== $artifact_type && $artifact_type !== null) {
continue;
}
$artifacts[$name] = array('type' => $type, 'step' => $step);
}
}
return $artifacts;
}
/**
* 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 $function Name of a `vxsprintf` function, like
* @{function:vcsprintf}.
* @param string $pattern User-provided pattern string containing
* `${variables}`.
* @param dict $variables List of available replacement variables.
* @return string String with variables replaced safely into it.
*/
protected function mergeVariables($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, $argv);
}
public function getFieldSpecifications() {
return array();
}
protected function formatSettingForDescription($key, $default = null) {
return $this->formatValueForDescription($this->getSetting($key, $default));
}
protected function formatValueForDescription($value) {
if (strlen($value)) {
return phutil_tag('strong', array(), $value);
} else {
return phutil_tag('em', array(), pht('(null)'));
}
}
public function supportsWaitForMessage() {
return false;
}
public function shouldWaitForMessage(HarbormasterBuildTarget $target) {
if (!$this->supportsWaitForMessage()) {
return false;
}
$wait = $target->getDetail('builtin.wait-for-message');
return ($wait == 'wait');
}
protected function shouldAbort(
HarbormasterBuild $build,
HarbormasterBuildTarget $target) {
return $build->getBuildGeneration() !== $target->getBuildGeneration();
}
protected function resolveFutures(
HarbormasterBuild $build,
HarbormasterBuildTarget $target,
array $futures) {
$did_close = false;
$wait_start = PhabricatorTime::getNow();
$futures = new FutureIterator($futures);
foreach ($futures->setUpdateInterval(5) as $key => $future) {
if ($future !== null) {
continue;
}
$build->reload();
if ($this->shouldAbort($build, $target)) {
throw new HarbormasterBuildAbortedException();
}
// See PHI916. If we're waiting on a remote system for a while, clean
// up database connections to reduce the cost of having a large number
// of processes babysitting an `ssh ... ./run-huge-build.sh` process on
// a build host.
if (!$did_close) {
$now = PhabricatorTime::getNow();
$elapsed = ($now - $wait_start);
$idle_limit = 5;
if ($elapsed >= $idle_limit) {
LiskDAO::closeIdleConnections();
$did_close = true;
}
}
}
}
protected function logHTTPResponse(
HarbormasterBuild $build,
HarbormasterBuildTarget $build_target,
BaseHTTPFuture $future,
$label) {
list($status, $body, $headers) = $future->resolve();
$header_lines = array();
// TODO: We don't currently preserve the entire "HTTP" response header, but
// should. Once we do, reproduce it here faithfully.
$status_code = $status->getStatusCode();
$header_lines[] = "HTTP {$status_code}";
foreach ($headers as $header) {
list($head, $tail) = $header;
$header_lines[] = "{$head}: {$tail}";
}
$header_lines = implode("\n", $header_lines);
$build_target
->newLog($label, 'http.head')
->append($header_lines);
$build_target
->newLog($label, 'http.body')
->append($body);
}
protected function logSilencedCall(
HarbormasterBuild $build,
HarbormasterBuildTarget $build_target,
$label) {
$build_target
->newLog($label, 'silenced')
->append(
pht(
'Declining to make service call because `phabricator.silent` is '.
'enabled in configuration.'));
}
public function willStartBuild(
PhabricatorUser $viewer,
HarbormasterBuildable $buildable,
HarbormasterBuild $build,
HarbormasterBuildPlan $plan,
HarbormasterBuildStep $step) {
return;
}
/* -( Automatic Targets )-------------------------------------------------- */
public function getBuildStepAutotargetStepKey() {
return null;
}
public function getBuildStepAutotargetPlanKey() {
throw new PhutilMethodNotImplementedException();
}
public function shouldRequireAutotargeting() {
return false;
}
}

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