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Improve several exception behaviors for Harbormaster workers
Summary: Ref T2015. Several fixes: - `checkForCancellation()` no longer exists, and isn't relevant for resumable stops. Throw it away for now. - Fix an issue where a build could pass even if the final step failed. - `phlog()` exceptions so they show up in `bin/harbormaster` and the daemon logs. - Write an exception log if a step fails. - Add a "throw an exception" step to debug this stuff more easily. Test Plan: - Grepped for `checkForCancellation()`. - Ran a failing build where the final step caused the failure. - Observed `phlog()` in `bin/harbormaster` output. - Observed log in web UI: {F101168} Reviewers: btrahan, hach-que Reviewed By: btrahan CC: aran Maniphest Tasks: T2015 Differential Revision: https://secure.phabricator.com/D7935
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51d8570b34
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6 changed files with 48 additions and 33 deletions
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@ -767,6 +767,7 @@ phutil_register_library_map(array(
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'HarbormasterStepDeleteController' => 'applications/harbormaster/controller/HarbormasterStepDeleteController.php',
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'HarbormasterStepEditController' => 'applications/harbormaster/controller/HarbormasterStepEditController.php',
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'HarbormasterTargetWorker' => 'applications/harbormaster/worker/HarbormasterTargetWorker.php',
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'HarbormasterThrowExceptionBuildStep' => 'applications/harbormaster/step/HarbormasterThrowExceptionBuildStep.php',
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'HarbormasterUIEventListener' => 'applications/harbormaster/event/HarbormasterUIEventListener.php',
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'HarbormasterWorker' => 'applications/harbormaster/worker/HarbormasterWorker.php',
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'HeraldAction' => 'applications/herald/storage/HeraldAction.php',
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@ -3260,6 +3261,7 @@ phutil_register_library_map(array(
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'HarbormasterStepDeleteController' => 'HarbormasterController',
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'HarbormasterStepEditController' => 'HarbormasterController',
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'HarbormasterTargetWorker' => 'HarbormasterWorker',
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'HarbormasterThrowExceptionBuildStep' => 'BuildStepImplementation',
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'HarbormasterUIEventListener' => 'PhabricatorEventListener',
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'HarbormasterWorker' => 'PhabricatorWorker',
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'HeraldAction' => 'HeraldDAO',
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@ -163,17 +163,17 @@ final class HarbormasterBuildEngine extends Phobject {
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}
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}
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// If every step is complete, we're done with this build. Mark it passed
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// and bail.
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if (count($complete) == count($steps)) {
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$build->setBuildStatus(HarbormasterBuild::STATUS_PASSED);
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// If any step failed, fail the whole build, then bail.
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if (count($failed)) {
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$build->setBuildStatus(HarbormasterBuild::STATUS_FAILED);
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$build->save();
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return;
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}
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// If any step failed, fail the whole build, then bail.
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if (count($failed)) {
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$build->setBuildStatus(HarbormasterBuild::STATUS_FAILED);
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// If every step is complete, we're done with this build. Mark it passed
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// and bail.
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if (count($complete) == count($steps)) {
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$build->setBuildStatus(HarbormasterBuild::STATUS_PASSED);
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$build->save();
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return;
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}
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@ -53,16 +53,6 @@ final class CommandBuildStepImplementation
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$log_stderr->append($stderr);
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$future->discardBuffers();
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// Check to see if we have moved from a "Building" status. This
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// can occur if the user cancels the build, in which case we want
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// to terminate whatever we're doing and return as quickly as possible.
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if ($build->checkForCancellation()) {
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$log_stdout->finalize($start_stdout);
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$log_stderr->finalize($start_stderr);
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$future->resolveKill();
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return;
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}
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// Wait one second before querying for more data.
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sleep(1);
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}
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@ -80,7 +70,7 @@ final class CommandBuildStepImplementation
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$log_stderr->finalize($start_stderr);
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if ($err) {
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$build->setBuildStatus(HarbormasterBuild::STATUS_FAILED);
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throw new Exception(pht('Command failed with error %d.', $err));
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}
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}
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@ -0,0 +1,25 @@
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<?php
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final class HarbormasterThrowExceptionBuildStep
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extends BuildStepImplementation {
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public function getName() {
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return pht('Throw Exception');
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}
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public function getGenericDescription() {
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return pht('Throw an exception.');
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}
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public function getDescription() {
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return pht('Throw an exception.');
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}
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public function execute(
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HarbormasterBuild $build,
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HarbormasterBuildTarget $build_target) {
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throw new Exception(pht('(This is an explicit exception.)'));
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}
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}
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@ -30,10 +30,6 @@ final class WaitForPreviousBuildStepImplementation
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return;
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}
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// We are blocked until all previous builds finish.
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$build->setBuildStatus(HarbormasterBuild::STATUS_WAITING);
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$build->save();
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// Block until all previous builds of the same build plan have
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// finished.
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$plan = $build->getBuildPlan();
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@ -42,13 +38,6 @@ final class WaitForPreviousBuildStepImplementation
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$log_start = null;
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$blockers = $this->getBlockers($object, $plan, $build);
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while (count($blockers) > 0) {
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if ($build->checkForCancellation()) {
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if ($log !== null) {
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$log->finalize($log_start);
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}
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return;
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}
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if ($log === null) {
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$log = $build->createLog($build_target, "waiting", "blockers");
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$log_start = $log->start();
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@ -56,16 +45,14 @@ final class WaitForPreviousBuildStepImplementation
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$log->append("Blocked by: ".implode(",", $blockers)."\n");
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// TODO: This should fail temporarily instead after setting the target to
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// waiting, and thereby push the build into a waiting status.
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sleep(1);
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$blockers = $this->getBlockers($object, $plan, $build);
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}
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if ($log !== null) {
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$log->finalize($log_start);
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}
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// Move back into building status.
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$build->setBuildStatus(HarbormasterBuild::STATUS_BUILDING);
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$build->save();
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}
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private function getBlockers(
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@ -46,6 +46,17 @@ final class HarbormasterTargetWorker extends HarbormasterWorker {
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$target->save();
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}
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} catch (Exception $ex) {
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phlog($ex);
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try {
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$log = $build->createLog($target, 'core', 'exception');
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$start = $log->start();
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$log->append((string)$ex);
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$log->finalize($start);
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} catch (Exception $log_ex) {
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phlog($log_ex);
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}
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$target->setTargetStatus(HarbormasterBuildTarget::STATUS_FAILED);
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$target->save();
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}
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