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* Use Nix's negative caching.

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This commit is contained in:
Eelco Dolstra 2009-03-26 12:53:39 +00:00
parent 8f6f6ee53e
commit f0f9f12e42
1 changed files with 14 additions and 40 deletions
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54
src/script/hydra_build.pl
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@ -10,6 +10,13 @@ use Hydra::Helper::Nix;
my $db = openHydraDB;
sub getBuildLog {
my ($drvPath) = @_;
my $logPath = "/nix/var/log/nix/drvs/" . basename $drvPath;
return -e $logPath ? $logPath : undef;
}
sub doBuild {
my ($build) = @_;
@ -31,38 +38,6 @@ sub doBuild {
if (!isValidPath($outPath)) {
$isCachedBuild = 0;
# Check whether a dependency of this build has previously
# failed. If so, don't even bother to build, since it will
# fail anyway. !!! Once Nix has negative caching, this code
# can go.
my @drvDeps = split '\n', `nix-store --query --requisites --include-outputs $drvPath`;
die "cannot query dependencies of `$drvPath': $?" if $? != 0;
@drvDeps = grep { $_ =~ /.drv$/ } @drvDeps;
my @drvOutputs = split '\n', `nix-store --query --outputs @drvDeps`;
die "cannot query outputs of the dependencies of `$drvPath': $?" if $? != 0;
foreach my $dep (@drvOutputs) {
# !!! This checks more than it has to, namely
# build-time-only dependencies of dependencies (which
# don't need to be built). However, it shouldn't matter:
# if the dependency was built, then presumably *its*
# dependencies were built as well.
# !!! should disregard fixed-output derivations (?)
if (!isValidPath($dep)) {
my ($step) = $db->resultset('BuildSteps')->search(
{outPath => $dep}, {rows => 1, order_by => "stopTime DESC", type => 0, busy => 0});
if ($step && $step->status != 0) {
$buildStatus = 5;
$failedDepBuild = $step->build->id;
$failedDepStepNr = $step->stepnr;
goto done;
}
}
}
# Do the build.
$startTime = time();
@ -118,22 +93,24 @@ sub doBuild {
my $drvPathStep = $1;
$someBuildFailed = 1;
$thisBuildFailed = 1 if $drvPath eq $drvPathStep;
my $errorMsg = $4;
$errorMsg = "build failed previously (cached)" if $3 eq "cached";
$db->txn_do(sub {
if ($buildSteps{$drvPathStep}) {
my $step = $build->buildsteps->find({stepnr => $buildSteps{$drvPathStep}}) or die;
$step->update({busy => 0, status => 1, errormsg => $4, stoptime => time});
$step->update({busy => 0, status => 1, errormsg => $errorMsg, stoptime => time});
} else {
$build->buildsteps->create(
{ stepnr => $buildStepNr++
{ stepnr => ($buildSteps{$drvPathStep} = $buildStepNr++)
, type => 0 # = build
, drvpath => $drvPathStep
, outpath => $2
, logfile => $4
, logfile => getBuildLog($drvPathStep)
, busy => 0
, status => 1
, starttime => time
, stoptime => time
, errormsg => $4
, errormsg => $errorMsg
});
}
});
@ -194,9 +171,6 @@ sub doBuild {
$db->txn_do(sub {
$build->update({finished => 1, timestamp => time});
my $logPath = "/nix/var/log/nix/drvs/" . basename $drvPath;
$logPath = undef unless -e $logPath;
my $releaseName;
if (-e "$outPath/nix-support/hydra-release-name") {
open FILE, "$outPath/nix-support/hydra-release-name" or die;
@ -211,7 +185,7 @@ sub doBuild {
, buildstatus => $buildStatus
, starttime => $startTime
, stoptime => $stopTime
, logfile => $logPath
, logfile => getBuildLog $drvPath
, errormsg => $errormsg
, releasename => $releaseName
, faileddepbuild => $failedDepBuild