hydra/t/lib/Setup.pm

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package Setup;
use strict;
use Exporter;
use Test::PostgreSQL;
use File::Temp;
use File::Path qw(make_path);
use File::Basename;
use Cwd qw(abs_path getcwd);
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our @ISA = qw(Exporter);
our @EXPORT = qw(test_init hydra_setup nrBuildsForJobset queuedBuildsForJobset
nrQueuedBuildsForJobset createBaseJobset createJobsetWithOneInput
evalSucceeds runBuild sendNotifications updateRepository
captureStdoutStderr);
# Set up the environment for running tests.
#
# Hash Parameters:
#
# * hydra_config: configuration for the Hydra processes for your test.
#
# This clears several environment variables and sets them to ephemeral
# values: a temporary database, temporary Nix store, temporary Hydra
# data directory, etc.
#
# Note: This function must run _very_ early, before nearly any Hydra
# libraries are loaded. To use this, you very likely need to `use Setup`
# and then run `test_init`, and then `require` the Hydra libraries you
# need.
#
# It returns a tuple: a handle to a temporary directory and a handle to
# the postgres service. If either of these variables go out of scope,
# those resources are released and the test environment becomes invalid.
#
# Look at the top of an existing `.t` file to see how this should be used
# in practice.
sub test_init {
my %opts = @_;
my $dir = File::Temp->newdir();
$ENV{'HYDRA_DATA'} = "$dir/hydra-data";
mkdir $ENV{'HYDRA_DATA'};
$ENV{'NIX_CONF_DIR'} = "$dir/nix/etc/nix";
make_path($ENV{'NIX_CONF_DIR'});
my $nixconf = "$ENV{'NIX_CONF_DIR'}/nix.conf";
open(my $fh, '>', $nixconf) or die "Could not open file '$nixconf' $!";
print $fh "sandbox = false\n";
close $fh;
$ENV{'HYDRA_CONFIG'} = "$dir/hydra.conf";
open(my $fh, '>', $ENV{'HYDRA_CONFIG'}) or die "Could not open file '" . $ENV{'HYDRA_CONFIG'}. " $!";
print $fh $opts{'hydra_config'} || "";
close $fh;
$ENV{'NIX_STATE_DIR'} = "$dir/nix/var/nix";
$ENV{'NIX_MANIFESTS_DIR'} = "$dir/nix/var/nix/manifests";
$ENV{'NIX_STORE_DIR'} = "$dir/nix/store";
$ENV{'NIX_LOG_DIR'} = "$dir/nix/var/log/nix";
my $pgsql = Test::PostgreSQL->new(
extra_initdb_args => "--locale C.UTF-8"
);
$ENV{'HYDRA_DBI'} = $pgsql->dsn;
system("hydra-init") == 0 or die;
return (
db => $pgsql,
tmpdir => $dir,
testdir => abs_path(dirname(__FILE__) . "/.."),
jobsdir => abs_path(dirname(__FILE__) . "/../jobs")
);
}
sub captureStdoutStderr {
# "Lazy"-load Hydra::Helper::Nix to avoid the compile-time
# import of Hydra::Model::DB. Early loading of the DB class
# causes fixation of the DSN, and we need to fixate it after
# the temporary DB is setup.
require Hydra::Helper::Nix;
return Hydra::Helper::Nix::captureStdoutStderr(@_)
}
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sub hydra_setup {
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my ($db) = @_;
$db->resultset('Users')->create({ username => "root", emailaddress => 'root@invalid.org', password => '' });
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}
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sub nrBuildsForJobset {
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my ($jobset) = @_;
return $jobset->builds->search({},{})->count ;
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}
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sub queuedBuildsForJobset {
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my ($jobset) = @_;
return $jobset->builds->search({finished => 0});
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}
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sub nrQueuedBuildsForJobset {
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my ($jobset) = @_;
return queuedBuildsForJobset($jobset)->count ;
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}
sub createBaseJobset {
my ($jobsetName, $nixexprpath, $jobspath) = @_;
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my $db = Hydra::Model::DB->new;
my $project = $db->resultset('Projects')->update_or_create({name => "tests", displayname => "", owner => "root"});
my $jobset = $project->jobsets->create({name => $jobsetName, nixexprinput => "jobs", nixexprpath => $nixexprpath, emailoverride => ""});
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my $jobsetinput;
my $jobsetinputals;
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$jobsetinput = $jobset->jobsetinputs->create({name => "jobs", type => "path"});
$jobsetinputals = $jobsetinput->jobsetinputalts->create({altnr => 0, value => $jobspath});
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return $jobset;
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}
sub createJobsetWithOneInput {
my ($jobsetName, $nixexprpath, $name, $type, $uri, $jobspath) = @_;
my $jobset = createBaseJobset($jobsetName, $nixexprpath, $jobspath);
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my $jobsetinput;
my $jobsetinputals;
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$jobsetinput = $jobset->jobsetinputs->create({name => $name, type => $type});
$jobsetinputals = $jobsetinput->jobsetinputalts->create({altnr => 0, value => $uri});
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return $jobset;
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}
sub evalSucceeds {
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my ($jobset) = @_;
my ($res, $stdout, $stderr) = captureStdoutStderr(60, ("hydra-eval-jobset", $jobset->project->name, $jobset->name));
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chomp $stdout; chomp $stderr;
print STDERR "Evaluation errors for jobset ".$jobset->project->name.":".$jobset->name.": \n".$jobset->errormsg."\n" if $jobset->errormsg;
print STDERR "STDOUT: $stdout\n" if $stdout ne "";
print STDERR "STDERR: $stderr\n" if $stderr ne "";
return !$res;
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}
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sub runBuild {
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my ($build) = @_;
my ($res, $stdout, $stderr) = captureStdoutStderr(60, ("hydra-queue-runner", "-vvvv", "--build-one", $build->id));
if ($res) {
print STDERR "Queue runner stdout: $stdout\n" if $stdout ne "";
print STDERR "Queue runner stderr: $stderr\n" if $stderr ne "";
}
return !$res;
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}
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sub sendNotifications() {
my ($res, $stdout, $stderr) = captureStdoutStderr(60, ("hydra-notify", "--queued-only"));
if ($res) {
print STDERR "hydra notify stdout: $stdout\n" if $stdout ne "";
print STDERR "hydra notify stderr: $stderr\n" if $stderr ne "";
}
return !$res;
}
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sub updateRepository {
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my ($scm, $update, $scratchdir) = @_;
my $curdir = getcwd;
chdir "$scratchdir";
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my ($res, $stdout, $stderr) = captureStdoutStderr(60, ($update, $scm));
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chdir "$curdir";
die "unexpected update error with $scm: $stderr\n" if $res;
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my ($message, $loop, $status) = $stdout =~ m/::(.*) -- (.*) -- (.*)::/;
print STDOUT "Update $scm repository: $message\n";
return ($loop eq "continue", $status eq "updated");
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}
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1;