300 lines
9.7 KiB
Perl
Executable file
300 lines
9.7 KiB
Perl
Executable file
#! /var/run/current-system/sw/bin/perl -w
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use strict;
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use File::Basename;
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use File::stat;
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use Hydra::Schema;
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use Hydra::Helper::Nix;
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my $db = openHydraDB;
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sub doBuild {
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my ($build) = @_;
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my $drvPath = $build->drvpath;
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my $outPath = $build->outpath;
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my $isCachedBuild = 1;
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my $outputCreated = 1; # i.e., the Nix build succeeded (but it could be a positive failure)
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my $startTime = 0;
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my $stopTime = 0;
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my $buildStatus = 0; # = succeeded
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my $errormsg = undef;
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registerRoot $outPath;
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if (!isValidPath($outPath)) {
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$isCachedBuild = 0;
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$startTime = time();
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my $thisBuildFailed = 0;
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my $someBuildFailed = 0;
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# Run Nix to perform the build, and monitor the stderr output
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# to get notifications about specific build steps, the
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# associated log files, etc.
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my $cmd = "nix-store --max-silent-time 1800 --keep-going --no-build-output " .
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"--log-type flat --print-build-trace --realise $drvPath 2>&1";
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my $buildStepNr = 1;
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open OUT, "$cmd |" or die;
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while (<OUT>) {
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$errormsg .= $_;
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unless (/^@\s+/) {
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print STDERR "$_";
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next;
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}
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if (/^@\s+build-started\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)$/) {
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$db->txn_do(sub {
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$db->resultset('BuildSteps')->create(
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{ id => $build->id
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, stepnr => $buildStepNr++
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, type => 0 # = build
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, drvpath => $1
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, outpath => $2
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, logfile => $4
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, busy => 1
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, starttime => time
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});
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});
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}
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elsif (/^@\s+build-succeeded\s+(\S+)\s+(\S+)$/) {
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my $drvPath = $1;
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$db->txn_do(sub {
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(my $step) = $db->resultset('BuildSteps')->search(
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{id => $build->id, type => 0, drvpath => $drvPath}, {});
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die unless $step;
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$step->busy(0);
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$step->status(0);
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$step->stoptime(time);
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$step->update;
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});
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}
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elsif (/^@\s+build-failed\s+(\S+)\s+(\S+)\s+(\S+)\s+(.*)$/) {
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my $drvPathStep = $1;
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$someBuildFailed = 1;
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$thisBuildFailed = 1 if $drvPath eq $drvPathStep;
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$db->txn_do(sub {
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(my $step) = $db->resultset('BuildSteps')->search(
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{id => $build->id, type => 0, drvpath => $drvPathStep}, {});
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if ($step) {
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die unless $step;
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$step->busy(0);
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$step->status(1);
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$step->errormsg($4);
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$step->stoptime(time);
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$step->update;
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} else {
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$db->resultset('BuildSteps')->create(
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{ id => $build->id
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, stepnr => $buildStepNr++
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, type => 0 # = build
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, drvpath => $drvPathStep
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, outpath => $2
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, logfile => $4
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, busy => 0
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, status => 1
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, starttime => time
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, stoptime => time
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, errormsg => $4
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});
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}
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});
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}
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elsif (/^@\s+substituter-started\s+(\S+)\s+(\S+)$/) {
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my $outPath = $1;
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$db->txn_do(sub {
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$db->resultset('BuildSteps')->create(
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{ id => $build->id
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, stepnr => $buildStepNr++
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, type => 1 # = substitution
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, outpath => $1
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, busy => 1
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, starttime => time
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});
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});
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}
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elsif (/^@\s+substituter-succeeded\s+(\S+)$/) {
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my $outPath = $1;
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$db->txn_do(sub {
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(my $step) = $db->resultset('BuildSteps')->search(
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{id => $build->id, type => 1, outpath => $outPath}, {});
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die unless $step;
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$step->busy(0);
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$step->status(0);
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$step->stoptime(time);
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$step->update;
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});
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}
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elsif (/^@\s+substituter-failed\s+(\S+)\s+(\S+)\s+(\S+)$/) {
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my $outPath = $1;
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$db->txn_do(sub {
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(my $step) = $db->resultset('BuildSteps')->search(
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{id => $build->id, type => 1, outpath => $outPath}, {});
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die unless $step;
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$step->busy(0);
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$step->status(1);
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$step->errormsg($3);
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$step->stoptime(time);
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$step->update;
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});
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}
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else {
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print STDERR "unknown Nix trace message: $_";
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}
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}
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close OUT;
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my $res = $?;
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$stopTime = time();
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if ($res != 0) {
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if ($thisBuildFailed) { $buildStatus = 1; }
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elsif ($someBuildFailed) { $buildStatus = 2; }
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else { $buildStatus = 3; }
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}
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# Only store the output of running Nix if we have a miscellaneous error.
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$errormsg = undef unless $buildStatus == 3;
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}
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$db->txn_do(sub {
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$build->finished(1);
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$build->timestamp(time());
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$build->update;
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my $logPath = "/nix/var/log/nix/drvs/" . basename $drvPath;
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$logPath = undef unless -e $logPath;
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my $releaseName;
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if (-e "$outPath/nix-support/hydra-release-name") {
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open FILE, "$outPath/nix-support/hydra-release-name" or die;
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$releaseName = <FILE>;
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chomp $releaseName;
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close FILE;
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}
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$db->resultset('BuildResultInfo')->create(
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{ id => $build->id
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, iscachedbuild => $isCachedBuild
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, buildstatus => $buildStatus
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, starttime => $startTime
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, stoptime => $stopTime
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, logfile => $logPath
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, errormsg => $errormsg
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, releasename => $releaseName
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});
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if ($buildStatus == 0) {
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my $productnr = 1;
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if (-e "$outPath/nix-support/hydra-build-products") {
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open LIST, "$outPath/nix-support/hydra-build-products" or die;
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while (<LIST>) {
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/^([\w\-]+)\s+([\w\-]+)\s+(\S+)$/ or next;
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my $type = $1;
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my $subtype = $2 eq "none" ? "" : $2;
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my $path = $3;
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next unless -e $path;
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my $fileSize, my $sha1, my $sha256;
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if (-f $path) {
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my $st = stat($path) or die "cannot stat $path: $!";
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$fileSize = $st->size;
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$sha1 = `nix-hash --flat --type sha1 $path`
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or die "cannot hash $path: $?";;
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chomp $sha1;
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$sha256 = `nix-hash --flat --type sha256 $path`
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or die "cannot hash $path: $?";;
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chomp $sha256;
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}
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$db->resultset('BuildProducts')->create(
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{ build => $build->id
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, productnr => $productnr++
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, type => $type
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, subtype => $subtype
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, path => $path
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, filesize => $fileSize
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, sha1hash => $sha1
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, sha256hash => $sha256
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, name => basename $path
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});
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}
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close LIST;
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}
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else {
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$db->resultset('BuildProducts')->create(
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{ build => $build->id
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, productnr => $productnr++
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, type => "nix-build"
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, subtype => ""
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, path => $outPath
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, name => $build->nixname
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});
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}
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}
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$build->schedulingInfo->delete;
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});
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}
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my $buildId = $ARGV[0] or die;
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print STDERR "performing build $buildId\n";
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# Lock the build. If necessary, steal the lock from the parent
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# process (runner.pl). This is so that if the runner dies, the
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# children (i.e. the build.pl instances) can continue to run and won't
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# have the lock taken away.
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my $build;
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$db->txn_do(sub {
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$build = $db->resultset('Builds')->find($buildId);
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die "build $buildId doesn't exist" unless defined $build;
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if ($build->schedulingInfo->busy != 0 && $build->schedulingInfo->locker != getppid) {
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die "build $buildId is already being built";
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}
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$build->schedulingInfo->busy(1);
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$build->schedulingInfo->locker($$);
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$build->schedulingInfo->update;
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});
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die unless $build;
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# Do the build. If it throws an error, unlock the build so that it
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# can be retried.
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eval {
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doBuild $build;
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print "done\n";
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};
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if ($@) {
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warn $@;
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$db->txn_do(sub {
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$build->schedulingInfo->busy(0);
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$build->schedulingInfo->locker($$);
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$build->schedulingInfo->update;
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});
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}
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