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* Get dependencies from the database.

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This commit is contained in:
Eelco Dolstra 2008-11-05 04:52:52 +00:00
parent 621ce1ee64
commit a970603ad1
1 changed files with 31 additions and 3 deletions
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34
src/scheduler.pl
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@ -9,6 +9,12 @@ use HydraFrontend::Schema;
my $db = HydraFrontend::Schema->connect("dbi:SQLite:dbname=hydra.sqlite", "", "", {});
sub isValidPath {
my $path = shift;
return system("nix-store --check-validity $path 2> /dev/null") == 0;
}
sub buildJob {
my ($project, $jobset, $jobName, $drvPath, $outPath) = @_;
@ -22,7 +28,7 @@ sub buildJob {
my $startTime = 0;
my $stopTime = 0;
if (system("nix-store --check-validity $outPath 2> /dev/null") != 0) {
if (!isValidPath($outPath)) {
$isCachedBuild = 0;
$startTime = time();
@ -150,12 +156,34 @@ sub checkJobSet {
if (defined $jobExpr->{function}->{attrspat}) {
foreach my $argName (keys(%{$jobExpr->{function}->{attrspat}->{attr}})) {
print " needs input $argName\n";
die "missing input `$argName'" if !defined $inputInfo->{$argName};
$extraArgs .= " --arg $argName '{path = " . $inputInfo->{$argName}->{storePath} . ";}'";
my $storePath;
if (defined $inputInfo->{$argName}) {
# The argument name matches an input.
$storePath = $inputInfo->{$argName}->{storePath};
} else {
(my $prevBuild) = $db->resultset('Builds')->search(
{project => $project->name, jobset => $jobset->name, attrname => $argName},
{order_by => "timestamp DESC", rows => 1});
if (defined $prevBuild) {
# The argument name matches a previously built
# job in this jobset. Pick the most recent
# build. !!! refine the selection criteria:
# e.g., most recent successful build.
if (!isValidPath($prevBuild->outpath)) {
die "input path " . $prevBuild->outpath . " has been garbage-collected";
}
$storePath = $prevBuild->outpath;
} else {
# !!! reschedule?
die "missing input `$argName'";
}
}
$extraArgs .= " --arg $argName '{path = " . $storePath . ";}'";
}
}
# Instantiate the store derivation.
print "$extraArgs\n";
my $drvPath = `nix-instantiate $nixExprPath --attr $jobName $extraArgs`
or die "cannot evaluate the Nix expression containing the job definitions: $?";
chomp $drvPath;