forked from lix-project/hydra
e96916533f
This allows checking a jobset (say) at most once a day. It's also possible to disable polling by setting the interval to 0. This is useful for jobsets that use push notification or are manually evaluated.
311 lines
9.8 KiB
Perl
Executable file
311 lines
9.8 KiB
Perl
Executable file
#! /var/run/current-system/sw/bin/perl -w
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use strict;
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use feature 'switch';
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use Hydra::Schema;
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use Hydra::Helper::Nix;
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use Hydra::Helper::AddBuilds;
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use Hydra::Model::DB;
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use Digest::SHA qw(sha256_hex);
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use Email::Sender::Simple qw(sendmail);
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use Email::Sender::Transport::SMTP;
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use Email::Simple;
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use Email::Simple::Creator;
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use Sys::Hostname::Long;
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use Config::General;
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use Data::Dump qw(dump);
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STDOUT->autoflush();
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my $db = Hydra::Model::DB->new();
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my $config = getHydraConfig();
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# Don't check a jobset more than once every five minutes.
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my $minCheckInterval = 5 * 60;
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sub fetchInputs {
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my ($project, $jobset, $inputInfo) = @_;
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foreach my $input ($jobset->jobsetinputs->all) {
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foreach my $alt ($input->jobsetinputalts->all) {
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my @info = fetchInput($db, $project, $jobset, $input->name, $input->type, $alt->value);
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foreach my $info_el (@info) {
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push @{$$inputInfo{$input->name}}, $info_el if defined $info_el;
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}
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}
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}
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}
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sub setJobsetError {
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my ($jobset, $errorMsg) = @_;
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eval {
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txn_do($db, sub {
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$jobset->update({errormsg => $errorMsg, errortime => time});
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});
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};
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sendJobsetErrorNotification($jobset, $errorMsg);
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}
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sub sendJobsetErrorNotification() {
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my ($jobset, $errorMsg) = @_;
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return if $jobset->project->owner->emailonerror == 0;
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return if $errorMsg eq "";
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my $url = hostname_long;
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my $projectName = $jobset->project->name;
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my $jobsetName = $jobset->name;
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my $sender = $config->{'notification_sender'} ||
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(($ENV{'USER'} || "hydra") . "@" . $url);
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my $body = "Hi,\n"
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. "\n"
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. "This is to let you know that Hydra jobset evalation of $projectName:$jobsetName "
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. "resulted in the following error:\n"
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. "\n"
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. "$errorMsg"
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. "\n"
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. "Regards,\n\nThe Hydra build daemon.\n";
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my $email = Email::Simple->create(
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header => [
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To => $jobset->project->owner->emailaddress,
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From => "Hydra Build Daemon <$sender>",
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Subject => "Hydra $projectName:$jobsetName evaluation error",
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'X-Hydra-Instance' => $url,
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'X-Hydra-Project' => $projectName,
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'X-Hydra-Jobset' => $jobsetName
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],
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body => ""
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);
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$email->body_set($body);
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print STDERR $email->as_string if $ENV{'HYDRA_MAIL_TEST'};
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sendmail($email);
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}
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sub permute {
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my @list = @_;
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for (my $n = scalar @list - 1; $n > 0; $n--) {
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my $k = int(rand($n + 1)); # 0 <= $k <= $n
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@list[$n, $k] = @list[$k, $n];
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}
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return @list;
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}
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sub checkJobsetWrapped {
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my ($jobset) = @_;
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my $project = $jobset->project;
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my $inputInfo = {};
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my $exprType = $jobset->nixexprpath =~ /.scm$/ ? "guile" : "nix";
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# Fetch all values for all inputs.
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my $checkoutStart = time;
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fetchInputs($project, $jobset, $inputInfo);
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my $checkoutStop = time;
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# Hash the arguments to hydra-eval-jobs and check the
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# JobsetInputHashes to see if the previous evaluation had the same
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# inputs. If so, bail out.
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my @args = ($jobset->nixexprinput, $jobset->nixexprpath, inputsToArgs($inputInfo, $exprType));
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my $argsHash = sha256_hex("@args");
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my $prevEval = getPrevJobsetEval($db, $jobset, 0);
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if (defined $prevEval && $prevEval->hash eq $argsHash) {
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print STDERR " jobset is unchanged, skipping\n";
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txn_do($db, sub {
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$jobset->update({lastcheckedtime => time});
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});
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return;
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}
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# Evaluate the job expression.
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my $evalStart = time;
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my ($jobs, $nixExprInput) = evalJobs($inputInfo, $exprType, $jobset->nixexprinput, $jobset->nixexprpath);
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my $evalStop = time;
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my $jobOutPathMap = {};
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txn_do($db, sub {
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my $prevEval = getPrevJobsetEval($db, $jobset, 1);
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# Clear the "current" flag on all builds. Since we're in a
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# transaction this will only become visible after the new
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# current builds have been added.
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$jobset->builds->search({iscurrent => 1})->update({iscurrent => 0});
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# Schedule each successfully evaluated job.
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my %buildIds;
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foreach my $job (permute @{$jobs->{job}}) {
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next if $job->{jobName} eq "";
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print STDERR " considering job " . $project->name, ":", $jobset->name, ":", $job->{jobName} . "\n";
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checkBuild($db, $project, $jobset, $inputInfo, $nixExprInput, $job, \%buildIds, $prevEval, $jobOutPathMap);
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}
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# Update the last checked times and error messages for each
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# job.
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my %failedJobNames;
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push @{$failedJobNames{$_->{location}}}, $_->{msg} foreach @{$jobs->{error}};
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$jobset->update({lastcheckedtime => time});
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$_->update({ errormsg => $failedJobNames{$_->name} ? join '\n', @{$failedJobNames{$_->name}} : undef })
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foreach $jobset->jobs->all;
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my $hasNewBuilds = 0;
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while (my ($id, $new) = each %buildIds) {
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$hasNewBuilds = 1 if $new;
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}
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my $ev = $jobset->jobsetevals->create(
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{ hash => $argsHash
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, timestamp => time
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, checkouttime => abs($checkoutStop - $checkoutStart)
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, evaltime => abs($evalStop - $evalStart)
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, hasnewbuilds => $hasNewBuilds
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, nrbuilds => $hasNewBuilds ? scalar(keys %buildIds) : undef
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});
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if ($hasNewBuilds) {
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while (my ($id, $new) = each %buildIds) {
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$ev->jobsetevalmembers->create({ build => $id, isnew => $new });
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}
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foreach my $name (keys %{$inputInfo}) {
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for (my $n = 0; $n < scalar(@{$inputInfo->{$name}}); $n++) {
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my $input = $inputInfo->{$name}->[$n];
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$ev->jobsetevalinputs->create(
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{ name => $name
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, altnr => $n
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, type => $input->{type}
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, uri => $input->{uri}
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, revision => $input->{revision}
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, value => $input->{value}
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, dependency => $input->{id}
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, path => $input->{storePath} || "" # !!! temporary hack
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, sha256hash => $input->{sha256hash}
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});
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}
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}
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print STDERR " created new eval ", $ev->id, "\n";
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$ev->builds->update({iscurrent => 1});
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} else {
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print STDERR " created cached eval ", $ev->id, "\n";
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$prevEval->builds->update({iscurrent => 1}) if defined $prevEval;
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}
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});
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# Store the error messages for jobs that failed to evaluate.
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my $msg = "";
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foreach my $error (@{$jobs->{error}}) {
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my $bindings = "";
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foreach my $arg (@{$error->{arg}}) {
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my $input = $inputInfo->{$arg->{name}}->[$arg->{altnr}] or die "invalid input";
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$bindings .= ", " if $bindings ne "";
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$bindings .= $arg->{name} . " = ";
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given ($input->{type}) {
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when ("string") { $bindings .= "\"" . $input->{value} . "\""; }
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when ("boolean") { $bindings .= $input->{value}; }
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default { $bindings .= "..."; }
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}
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}
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$msg .= "at `" . $error->{location} . "' [$bindings]:\n" . $error->{msg} . "\n\n";
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}
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setJobsetError($jobset, $msg);
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}
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sub checkJobset {
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my ($jobset) = @_;
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print STDERR "considering jobset ", $jobset->project->name, ":", $jobset->name,
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$jobset->lastcheckedtime
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? " (last checked " . (time() - $jobset->lastcheckedtime) . "s ago)\n"
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: " (never checked)\n";
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my $triggerTime = $jobset->triggertime;
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eval {
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checkJobsetWrapped($jobset);
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};
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if ($@) {
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my $msg = $@;
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print STDERR "error evaluating jobset ", $jobset->name, ": $msg";
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txn_do($db, sub {
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$jobset->update({lastcheckedtime => time});
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setJobsetError($jobset, $msg);
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});
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}
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if (defined $triggerTime) {
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txn_do($db, sub {
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# Only clear the trigger time if the jobset hasn't been
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# triggered in the meantime. In that case, we need to
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# evaluate again.
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my $new = $jobset->get_from_storage();
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$jobset->update({ triggertime => undef })
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if $new->triggertime == $triggerTime;
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});
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}
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}
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sub checkSomeJobset {
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# If any jobset has been triggered by a push, check it.
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my ($jobset) = $db->resultset('Jobsets')->search(
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{ 'triggertime' => { '!=', undef },
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, -or => [ 'lastcheckedtime' => undef, 'lastcheckedtime' => { '<', time() - $minCheckInterval } ] },
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{ join => 'project', order_by => [ 'triggertime' ], rows => 1 });
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# Otherwise, check the jobset that hasn't been checked for the
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# longest time (but don't check more often than the jobset's
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# minimal check interval).
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($jobset) = $db->resultset('Jobsets')->search(
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{ 'project.enabled' => 1, 'me.enabled' => 1,
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, 'checkinterval' => { '!=', 0 }
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, -or => [ 'lastcheckedtime' => undef, 'lastcheckedtime' => { '<', \ (time() . " - me.checkinterval") } ] },
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{ join => 'project', order_by => [ 'lastcheckedtime nulls first' ], rows => 1 })
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unless defined $jobset;
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return 0 unless defined $jobset;
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checkJobset($jobset);
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return 1;
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}
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# For testing: evaluate a single jobset, then exit.
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if (scalar @ARGV == 2) {
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my $projectName = $ARGV[0];
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my $jobsetName = $ARGV[1];
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my $jobset = $db->resultset('Jobsets')->find($projectName, $jobsetName) or die;
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checkJobset($jobset);
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exit 0;
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}
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while (1) {
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eval {
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if (checkSomeJobset) {
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# Just so we don't go completely crazy if lastcheckedtime
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# isn't updated properly.
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sleep 1;
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} else {
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# print STDERR "sleeping...\n";
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sleep 30;
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}
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};
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if ($@) { print STDERR "$@"; }
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}
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