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phorge/src/applications/harbormaster/step/CommandBuildStepImplementation.php
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CommandBuildStepImplementation.php
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<?php
final class CommandBuildStepImplementation
extends VariableBuildStepImplementation {
public function getName() {
return pht('Run Command');
}
public function getGenericDescription() {
return pht('Run a command on Drydock host.');
}
public function getDescription() {
$settings = $this->getSettings();
return pht(
'Run \'%s\' on \'%s\'.',
$settings['command'],
$settings['hostartifact']);
}
public function execute(
HarbormasterBuild $build,
HarbormasterBuildTarget $build_target) {
$settings = $this->getSettings();
$variables = $build_target->getVariables();
$command = $this->mergeVariables(
'vcsprintf',
$settings['command'],
$variables);
$artifact = $build->loadArtifact($settings['hostartifact']);
$lease = $artifact->loadDrydockLease();
$interface = $lease->getInterface('command');
$future = $interface->getExecFuture('%C', $command);
$log_stdout = $build->createLog($build_target, "remote", "stdout");
$log_stderr = $build->createLog($build_target, "remote", "stderr");
$start_stdout = $log_stdout->start();
$start_stderr = $log_stderr->start();
// Read the next amount of available output every second.
while (!$future->isReady()) {
list($stdout, $stderr) = $future->read();
$log_stdout->append($stdout);
$log_stderr->append($stderr);
$future->discardBuffers();
// Check to see if we have moved from a "Building" status. This
// can occur if the user cancels the build, in which case we want
// to terminate whatever we're doing and return as quickly as possible.
if ($build->checkForCancellation()) {
$log_stdout->finalize($start_stdout);
$log_stderr->finalize($start_stderr);
$future->resolveKill();
return;
}
// Wait one second before querying for more data.
sleep(1);
}
// Get the return value so we can log that as well.
list($err) = $future->resolve();
// Retrieve the last few bits of information.
list($stdout, $stderr) = $future->read();
$log_stdout->append($stdout);
$log_stderr->append($stderr);
$future->discardBuffers();
$log_stdout->finalize($start_stdout);
$log_stderr->finalize($start_stderr);
if ($err) {
$build->setBuildStatus(HarbormasterBuild::STATUS_FAILED);
}
}
public function validateSettings() {
$settings = $this->getSettings();
if ($settings['command'] === null || !is_string($settings['command'])) {
return false;
}
if ($settings['hostartifact'] === null ||
!is_string($settings['hostartifact'])) {
return false;
}
// TODO: Check if the host artifact is provided by previous build steps.
return true;
}
public function getSettingDefinitions() {
return array(
'command' => array(
'name' => 'Command',
'description' => 'The command to execute on the remote machine.',
'type' => BuildStepImplementation::SETTING_TYPE_STRING),
'hostartifact' => array(
'name' => 'Host Artifact',
'description' =>
'The host artifact that determines what machine the command '.
'will run on.',
'type' => BuildStepImplementation::SETTING_TYPE_ARTIFACT,
'artifact_type' => HarbormasterBuildArtifact::TYPE_HOST));
}
}

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