2008-11-28 16:13:06 +00:00
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#! /var/run/current-system/sw/bin/perl -w
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2008-10-10 16:05:05 +00:00
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use strict;
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use XML::Simple;
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2008-11-25 11:09:15 +00:00
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use Hydra::Schema;
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2008-11-28 14:36:04 +00:00
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use Hydra::Helper::Nix;
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2008-11-25 13:27:57 +00:00
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use IPC::Run;
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2008-11-25 14:59:08 +00:00
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use POSIX qw(strftime);
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2008-10-28 10:18:03 +00:00
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2008-11-28 14:36:04 +00:00
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my $db = openHydraDB;
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2008-11-05 04:52:52 +00:00
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2008-11-25 13:27:57 +00:00
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sub captureStdoutStderr {
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my $stdin = ""; my $stdout; my $stderr;
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my $res = IPC::Run::run(\@_, \$stdin, \$stdout, \$stderr);
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return ($res, $stdout, $stderr);
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}
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2008-11-12 23:14:57 +00:00
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sub getStorePathHash {
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my ($storePath) = @_;
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my $hash = `nix-store --query --hash $storePath`
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or die "cannot get hash of $storePath";
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chomp $hash;
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die unless $hash =~ /^sha256:(.*)$/;
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$hash = $1;
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$hash = `nix-hash --to-base16 --type sha256 $hash`
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or die "cannot convert hash";
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chomp $hash;
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return $hash;
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}
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2008-11-04 18:23:28 +00:00
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sub fetchInput {
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2008-11-06 18:26:29 +00:00
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my ($input, $alt, $inputInfo) = @_;
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2008-11-04 18:23:28 +00:00
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my $type = $input->type;
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if ($type eq "path") {
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2008-11-17 13:36:58 +00:00
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my $uri = $alt->value;
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2008-11-25 14:59:08 +00:00
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my $timestamp = time;
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my $sha256;
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my $storePath;
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# Some simple caching: don't check a path more than once every N seconds.
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2008-12-16 16:26:33 +00:00
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(my $cachedInput) = $db->resultset('CachedPathInputs')->search(
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2008-11-25 14:59:08 +00:00
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{srcpath => $uri, lastseen => {">", $timestamp - 60}},
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{rows => 1, order_by => "lastseen DESC"});
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if (defined $cachedInput && isValidPath($cachedInput->storepath)) {
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$storePath = $cachedInput->storepath;
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$sha256 = $cachedInput->sha256hash;
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$timestamp = $cachedInput->timestamp;
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} else {
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print "copying input ", $input->name, " from $uri\n";
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$storePath = `nix-store --add "$uri"`
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or die "cannot copy path $uri to the Nix store";
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chomp $storePath;
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$sha256 = getStorePathHash $storePath;
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2008-12-16 16:26:33 +00:00
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($cachedInput) = $db->resultset('CachedPathInputs')->search(
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2008-11-25 14:59:08 +00:00
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{srcpath => $uri, sha256hash => $sha256});
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# Path inputs don't have a natural notion of a "revision",
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# so we simulate it by using the timestamp that we first
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# saw this path have this SHA-256 hash. So if the
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# contents of the path changes, we get a new "revision",
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# but if it doesn't change (or changes back), we don't get
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# a new "revision".
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if (!defined $cachedInput) {
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$db->txn_do(sub {
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2008-12-16 16:26:33 +00:00
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$db->resultset('CachedPathInputs')->create(
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2008-11-25 14:59:08 +00:00
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{ srcpath => $uri
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, timestamp => $timestamp
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, lastseen => $timestamp
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, sha256hash => $sha256
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, storepath => $storePath
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});
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});
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} else {
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$timestamp = $cachedInput->timestamp;
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$db->txn_do(sub {
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$cachedInput->lastseen(time);
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$cachedInput->update;
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});
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}
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}
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2008-11-12 23:14:57 +00:00
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$$inputInfo{$input->name} =
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{ type => $type
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, uri => $uri
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, storePath => $storePath
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2008-11-25 14:59:08 +00:00
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, sha256hash => $sha256
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, revision => strftime "%Y%m%d%H%M%S", gmtime($timestamp)
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2008-11-12 23:14:57 +00:00
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};
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2008-11-04 18:23:28 +00:00
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}
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2008-11-25 18:13:55 +00:00
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elsif ($type eq "svn") {
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my $uri = $alt->value;
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my $sha256;
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my $storePath;
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# First figure out the last-modified revision of the URI.
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my @cmd = (["svn", "ls", "-v", "--depth", "empty", $uri],
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"|", ["sed", 's/^ *\([0-9]*\).*/\1/']);
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my $stdout; my $stderr;
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die "cannot get head revision of Subversion repository at `$uri':\n$stderr"
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unless IPC::Run::run(@cmd, \$stdout, \$stderr);
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my $revision = $stdout; chomp $revision;
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die unless $revision =~ /^\d+$/;
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2008-12-16 16:26:33 +00:00
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(my $cachedInput) = $db->resultset('CachedSubversionInputs')->search(
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2008-11-25 18:13:55 +00:00
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{uri => $uri, revision => $revision});
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if (defined $cachedInput && isValidPath($cachedInput->storepath)) {
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$storePath = $cachedInput->storepath;
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$sha256 = $cachedInput->sha256hash;
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} else {
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# Then download this revision into the store.
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print "checking out Subversion input ", $input->name, " from $uri revision $revision\n";
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$ENV{"NIX_HASH_ALGO"} = "sha256";
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$ENV{"PRINT_PATH"} = "1";
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(my $res, $stdout, $stderr) = captureStdoutStderr(
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"nix-prefetch-svn", $uri, $revision);
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die "cannot check out Subversion repository `$uri':\n$stderr" unless $res;
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($sha256, $storePath) = split ' ', $stdout;
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$db->txn_do(sub {
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2008-12-16 16:26:33 +00:00
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$db->resultset('CachedSubversionInputs')->create(
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2008-11-25 18:13:55 +00:00
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{ uri => $uri
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, revision => $revision
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, sha256hash => $sha256
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, storepath => $storePath
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});
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});
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}
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$$inputInfo{$input->name} =
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{ type => $type
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, uri => $uri
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, storePath => $storePath
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, sha256hash => $sha256
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, revision => $revision
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};
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}
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2008-11-06 18:26:29 +00:00
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elsif ($type eq "string") {
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die unless defined $alt->value;
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$$inputInfo{$input->name} = {type => $type, value => $alt->value};
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}
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2008-11-25 18:34:24 +00:00
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elsif ($type eq "boolean") {
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die unless defined $alt->value && ($alt->value eq "true" || $alt->value eq "false");
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$$inputInfo{$input->name} = {type => $type, value => $alt->value};
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}
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2008-11-04 18:23:28 +00:00
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else {
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2008-11-25 18:13:55 +00:00
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die "input `" . $input->name . "' has unknown type `$type'";
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2008-11-04 18:23:28 +00:00
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}
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}
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2008-11-07 14:51:44 +00:00
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sub checkJob {
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my ($project, $jobset, $inputInfo, $nixExprPath, $jobName, $jobExpr, $extraArgs) = @_;
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2008-11-06 18:26:29 +00:00
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2008-11-07 14:51:44 +00:00
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# Instantiate the store derivation.
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2008-11-25 13:27:57 +00:00
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(my $res, my $drvPath, my $stderr) = captureStdoutStderr(
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"nix-instantiate", $nixExprPath, "--attr", $jobName, @{$extraArgs});
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die "cannot evaluate the Nix expression for job `$jobName':\n$stderr" unless $res;
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2008-11-07 14:51:44 +00:00
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chomp $drvPath;
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2008-11-04 18:23:28 +00:00
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2008-11-25 13:27:57 +00:00
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# Call nix-env --xml to get info about this job (drvPath, outPath, meta attributes, ...).
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($res, my $infoXml, $stderr) = captureStdoutStderr(
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qw(nix-env --query --available * --attr-path --out-path --drv-path --meta --xml --system-filter *),
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"-f", $nixExprPath, "--attr", $jobName, @{$extraArgs});
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die "cannot get information about the job `$jobName':\n$stderr" unless $res;
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2008-11-07 14:51:44 +00:00
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2008-11-10 10:18:50 +00:00
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my $info = XMLin($infoXml, ForceArray => 1, KeyAttr => ['attrPath', 'name'])
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2008-11-07 14:51:44 +00:00
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or die "cannot parse XML output";
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2008-11-10 10:18:50 +00:00
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my $job = $info->{item}->{$jobName};
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die if !defined $job;
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2008-11-07 14:51:44 +00:00
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my $description = defined $job->{meta}->{description} ? $job->{meta}->{description}->{value} : "";
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2008-12-16 15:09:39 +00:00
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my $longDescription = defined $job->{meta}->{longDescription} ? $job->{meta}->{longDescription}->{value} : "";
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my $license = defined $job->{meta}->{license} ? $job->{meta}->{license}->{value} : "";
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2008-11-07 14:51:44 +00:00
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die unless $job->{drvPath} eq $drvPath;
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my $outPath = $job->{outPath};
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2008-11-26 14:43:16 +00:00
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my $priority = 100;
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if (defined $job->{meta}->{schedulingPriority} &&
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$job->{meta}->{schedulingPriority}->{value} =~ /^\d+$/)
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{
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$priority = int($job->{meta}->{schedulingPriority}->{value});
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}
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2008-11-10 13:33:12 +00:00
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$db->txn_do(sub {
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if (scalar($db->resultset('Builds')->search(
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{ project => $project->name, jobset => $jobset->name
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, attrname => $jobName, outPath => $outPath })) > 0)
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{
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2008-11-25 13:27:57 +00:00
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print "already scheduled/done\n";
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2008-11-10 13:33:12 +00:00
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return;
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}
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2008-11-25 13:27:57 +00:00
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print "adding to queue\n";
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2008-11-11 12:54:37 +00:00
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my $build = $db->resultset('Builds')->create(
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{ finished => 0
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, timestamp => time()
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2008-11-10 13:33:12 +00:00
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, project => $project->name
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, jobset => $jobset->name
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, attrname => $jobName
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, description => $description
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2008-12-16 15:09:39 +00:00
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, longdescription => $longDescription
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, license => $license
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2008-11-12 16:42:07 +00:00
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, nixname => $job->{name}
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2008-11-10 13:33:12 +00:00
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, drvpath => $drvPath
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, outpath => $outPath
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, system => $job->{system}
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});
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2008-12-16 16:26:33 +00:00
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$db->resultset('BuildSchedulingInfo')->create(
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2008-11-11 12:54:37 +00:00
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{ id => $build->id
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2008-11-26 14:43:16 +00:00
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, priority => $priority
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2008-11-11 12:54:37 +00:00
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, busy => 0
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, locker => ""
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});
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2008-11-10 13:33:12 +00:00
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foreach my $inputName (keys %{$inputInfo}) {
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my $input = $inputInfo->{$inputName};
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2008-12-16 16:26:33 +00:00
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$db->resultset('BuildInputs')->create(
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2008-11-11 12:54:37 +00:00
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{ build => $build->id
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2008-11-10 13:33:12 +00:00
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, name => $inputName
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, type => $input->{type}
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, uri => $input->{uri}
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2008-11-25 14:59:08 +00:00
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, revision => $input->{revision}
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2008-11-10 13:33:12 +00:00
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, value => $input->{value}
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, dependency => $input->{id}
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, path => ($input->{storePath} or "") # !!! temporary hack
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2008-11-12 23:14:57 +00:00
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, sha256hash => $input->{sha256hash}
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2008-11-10 13:33:12 +00:00
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});
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}
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2009-02-06 21:01:20 +00:00
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# !!! this should really by done by nix-instantiate to prevent a GC race.
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registerRoot $drvPath;
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2008-11-10 13:33:12 +00:00
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});
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2008-11-07 14:51:44 +00:00
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};
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2008-11-25 13:27:57 +00:00
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sub setJobsetError {
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my ($jobset, $errorMsg) = @_;
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eval {
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$db->txn_do(sub {
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$jobset->errormsg($errorMsg);
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$jobset->errortime(time);
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$jobset->update;
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});
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};
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}
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2008-11-07 14:51:44 +00:00
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sub checkJobAlternatives {
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my ($project, $jobset, $inputInfo, $nixExprPath, $jobName, $jobExpr, $extraArgs, $argsNeeded, $n) = @_;
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if ($n >= scalar @{$argsNeeded}) {
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2008-11-09 00:48:36 +00:00
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eval {
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checkJob($project, $jobset, $inputInfo, $nixExprPath, $jobName, $jobExpr, $extraArgs);
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};
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2008-11-25 13:27:57 +00:00
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if ($@) {
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print "error evaluating job `", $jobName, "': $@";
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setJobsetError($jobset, $@);
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}
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2008-11-07 14:51:44 +00:00
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return;
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}
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my $argName = @{$argsNeeded}[$n];
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2008-11-25 13:27:57 +00:00
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#print "finding alternatives for argument $argName\n";
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2008-11-07 14:51:44 +00:00
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my ($input) = $jobset->jobsetinputs->search({name => $argName});
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2008-11-07 15:29:52 +00:00
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my %newInputInfo = %{$inputInfo}; $inputInfo = \%newInputInfo; # clone
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2008-11-07 14:51:44 +00:00
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if (defined $input) {
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foreach my $alt ($input->jobsetinputalts) {
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2008-11-25 13:27:57 +00:00
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#print "input ", $input->name, " (type ", $input->type, ") alt ", $alt->altnr, "\n";
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2008-11-25 14:59:08 +00:00
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fetchInput($input, $alt, $inputInfo);
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2008-11-25 13:27:57 +00:00
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my @newArgs = @{$extraArgs};
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2008-11-07 14:51:44 +00:00
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if (defined $inputInfo->{$argName}->{storePath}) {
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2008-11-25 14:59:08 +00:00
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push @newArgs, "--arg", $argName,
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2008-11-25 16:13:22 +00:00
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"{path = builtins.storePath " . $inputInfo->{$argName}->{storePath} . ";" .
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2008-11-25 14:59:08 +00:00
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" rev = \"" . $inputInfo->{$argName}->{revision} . "\";}";
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2008-11-25 18:34:24 +00:00
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} elsif ($inputInfo->{$argName}->{type} eq "string") {
|
2008-11-25 13:27:57 +00:00
|
|
|
push @newArgs, "--argstr", $argName, $inputInfo->{$argName}->{value};
|
2008-11-25 18:34:24 +00:00
|
|
|
} elsif ($inputInfo->{$argName}->{type} eq "boolean") {
|
|
|
|
push @newArgs, "--arg", $argName, $inputInfo->{$argName}->{value};
|
2008-11-07 14:51:44 +00:00
|
|
|
}
|
|
|
|
checkJobAlternatives(
|
|
|
|
$project, $jobset, $inputInfo, $nixExprPath,
|
2008-11-25 13:27:57 +00:00
|
|
|
$jobName, $jobExpr, \@newArgs, $argsNeeded, $n + 1);
|
2008-11-07 14:51:44 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
else {
|
|
|
|
|
|
|
|
(my $prevBuild) = $db->resultset('Builds')->search(
|
2008-11-11 12:54:37 +00:00
|
|
|
{finished => 1, project => $project->name, jobset => $jobset->name, attrname => $argName, buildStatus => 0},
|
|
|
|
{join => 'resultInfo', order_by => "timestamp DESC", rows => 1});
|
2008-11-07 14:51:44 +00:00
|
|
|
|
|
|
|
if (!defined $prevBuild) {
|
|
|
|
# !!! reschedule?
|
|
|
|
die "missing input `$argName'";
|
|
|
|
}
|
|
|
|
|
|
|
|
# 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";
|
|
|
|
}
|
|
|
|
|
|
|
|
$$inputInfo{$argName} =
|
|
|
|
{ type => "build"
|
|
|
|
, storePath => $prevBuild->outpath
|
|
|
|
, id => $prevBuild->id
|
|
|
|
};
|
|
|
|
|
2008-11-25 13:27:57 +00:00
|
|
|
my @newArgs = @{$extraArgs};
|
2008-11-25 16:13:22 +00:00
|
|
|
push @newArgs, "--arg", $argName, "{path = builtins.storePath " . $prevBuild->outpath . ";}";
|
2008-11-25 13:27:57 +00:00
|
|
|
|
2008-11-07 14:51:44 +00:00
|
|
|
checkJobAlternatives(
|
|
|
|
$project, $jobset, $inputInfo, $nixExprPath,
|
2008-11-25 13:27:57 +00:00
|
|
|
$jobName, $jobExpr, \@newArgs, $argsNeeded, $n + 1);
|
2008-11-07 14:51:44 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2008-11-25 13:27:57 +00:00
|
|
|
|
2008-11-07 14:51:44 +00:00
|
|
|
sub checkJobSet {
|
|
|
|
my ($project, $jobset) = @_;
|
|
|
|
my $inputInfo = {};
|
2008-11-26 13:39:15 +00:00
|
|
|
|
|
|
|
$db->txn_do(sub {
|
|
|
|
$jobset->lastcheckedtime(time);
|
|
|
|
$jobset->update;
|
|
|
|
});
|
2008-11-07 14:51:44 +00:00
|
|
|
|
|
|
|
# Fetch the input containing the Nix expression.
|
|
|
|
(my $exprInput) = $jobset->jobsetinputs->search({name => $jobset->nixexprinput});
|
2008-11-29 00:56:40 +00:00
|
|
|
die "No input named " . $jobset->nixexprinput unless defined $exprInput;
|
2008-11-07 14:51:44 +00:00
|
|
|
|
2008-11-29 00:56:40 +00:00
|
|
|
die "Multiple alternatives for the Nix expression input not supported yet"
|
|
|
|
if scalar($exprInput->jobsetinputalts) != 1;
|
2008-11-07 14:51:44 +00:00
|
|
|
|
|
|
|
fetchInput($exprInput, $exprInput->jobsetinputalts->first, $inputInfo);
|
|
|
|
|
|
|
|
# Evaluate the Nix expression.
|
2008-11-04 18:23:28 +00:00
|
|
|
my $nixExprPath = $inputInfo->{$jobset->nixexprinput}->{storePath} . "/" . $jobset->nixexprpath;
|
|
|
|
|
2008-11-25 13:27:57 +00:00
|
|
|
print "evaluating $nixExprPath\n";
|
|
|
|
|
|
|
|
(my $res, my $jobsXml, my $stderr) = captureStdoutStderr(
|
|
|
|
"nix-instantiate", $nixExprPath, "--eval-only", "--strict", "--xml");
|
|
|
|
die "cannot evaluate the Nix expression containing the jobs:\n$stderr" unless $res;
|
2008-11-04 18:23:28 +00:00
|
|
|
|
|
|
|
my $jobs = XMLin($jobsXml,
|
2008-11-10 10:27:52 +00:00
|
|
|
ForceArray => ['value', 'attr'],
|
2008-11-04 18:23:28 +00:00
|
|
|
KeyAttr => ['name'],
|
|
|
|
SuppressEmpty => '',
|
|
|
|
ValueAttr => [value => 'value'])
|
|
|
|
or die "cannot parse XML output";
|
|
|
|
|
|
|
|
die unless defined $jobs->{attrs};
|
|
|
|
|
2008-11-07 14:51:44 +00:00
|
|
|
# Iterate over the attributes listed in the Nix expression and
|
|
|
|
# perform the builds described by them. If an attribute is a
|
|
|
|
# function, then fill in the function arguments with the
|
|
|
|
# (alternative) values supplied in the jobsetinputs table.
|
2008-11-04 18:23:28 +00:00
|
|
|
foreach my $jobName (keys(%{$jobs->{attrs}->{attr}})) {
|
2008-11-25 13:27:57 +00:00
|
|
|
print "considering job $jobName\n";
|
2008-11-04 18:23:28 +00:00
|
|
|
|
2008-11-07 14:51:44 +00:00
|
|
|
my @argsNeeded = ();
|
|
|
|
|
2008-11-04 18:23:28 +00:00
|
|
|
my $jobExpr = $jobs->{attrs}->{attr}->{$jobName};
|
|
|
|
|
2008-11-07 14:51:44 +00:00
|
|
|
# !!! fix the case where there is only 1 attr, XML::Simple fucks up as usual
|
2008-11-04 18:23:28 +00:00
|
|
|
if (defined $jobExpr->{function}->{attrspat}) {
|
|
|
|
foreach my $argName (keys(%{$jobExpr->{function}->{attrspat}->{attr}})) {
|
2008-11-25 13:27:57 +00:00
|
|
|
#print "needs input $argName\n";
|
2008-11-07 14:51:44 +00:00
|
|
|
push @argsNeeded, $argName;
|
|
|
|
}
|
2008-11-04 18:23:28 +00:00
|
|
|
}
|
|
|
|
|
2008-11-09 00:48:36 +00:00
|
|
|
eval {
|
|
|
|
checkJobAlternatives(
|
|
|
|
$project, $jobset, {}, $nixExprPath,
|
2008-11-25 13:27:57 +00:00
|
|
|
$jobName, $jobExpr, [], \@argsNeeded, 0);
|
2008-11-09 00:48:36 +00:00
|
|
|
};
|
2008-11-25 18:34:24 +00:00
|
|
|
if ($@) {
|
|
|
|
print "error checking job ", $jobName, ": $@";
|
|
|
|
setJobsetError($jobset, $@);
|
|
|
|
}
|
2008-11-06 18:26:29 +00:00
|
|
|
}
|
2008-11-04 18:23:28 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
sub checkJobs {
|
|
|
|
|
2008-11-18 12:48:58 +00:00
|
|
|
foreach my $project ($db->resultset('Projects')->search({enabled => 1})) {
|
2008-11-25 13:27:57 +00:00
|
|
|
print "considering project ", $project->name, "\n";
|
2008-11-04 18:23:28 +00:00
|
|
|
foreach my $jobset ($project->jobsets->all) {
|
2008-11-25 13:27:57 +00:00
|
|
|
print "considering jobset ", $jobset->name, " in ", $project->name, "\n";
|
2008-11-18 12:48:58 +00:00
|
|
|
eval {
|
|
|
|
checkJobSet($project, $jobset);
|
2008-11-25 13:27:57 +00:00
|
|
|
};
|
|
|
|
if ($@) {
|
|
|
|
print "error evaluating jobset ", $jobset->name, ": $@";
|
2008-11-25 18:13:55 +00:00
|
|
|
setJobsetError($jobset, $@);
|
2008-11-25 13:27:57 +00:00
|
|
|
}
|
|
|
|
}
|
2008-11-04 18:23:28 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2008-11-11 10:27:36 +00:00
|
|
|
while (1) {
|
|
|
|
checkJobs;
|
|
|
|
print "sleeping...\n";
|
2008-11-29 01:20:13 +00:00
|
|
|
sleep 30;
|
2008-11-11 10:27:36 +00:00
|
|
|
}
|