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Add a plugin mechanism

Browse source 
You can now add plugins to Hydra by writing a module called
Hydra::Plugin::<whatever> and putting it in Perl's search path.  The
only plugin operation currently supported in buildFinished, called
when hydra-build has finished doing a build.

For instance, a Twitter notification plugin would look like this:

  package Hydra::Plugin::TwitterNotification;

  sub buildFinished {
      my ($self, $db, $config, $build, $dependents) = @_;
      print STDERR "tweeting about build ", $build->id, "\n";
      # send tweet...
  }

  1;
This commit is contained in:
Eelco Dolstra 2013-05-08 17:30:30 +02:00
parent f447c7d9db
commit 1d8bb0764b
3 changed files with 191 additions and 159 deletions
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14
src/lib/Hydra/Plugin.pm Normal file
View file

@ -0,0 +1,14 @@
package Hydra::Plugin;
use Module::Pluggable
search_path => "Hydra::Plugin",
require => 1;
# $plugin->buildFinished($db, $config, $build, $dependents):
#
# Called when build $build has finished. If the build failed, then
# $dependents is an array ref to a list of builds that have also
# failed as a result (i.e. because they depend on $build or a failed
# dependeny of $build).
1;

166
src/lib/Hydra/Plugin/EmailNotification.pm Normal file
View file

@ -0,0 +1,166 @@
package Hydra::Plugin::EmailNotification;
use strict;
use feature qw/switch/;
use POSIX qw(strftime);
use Email::Sender::Simple qw(sendmail);
use Email::Sender::Transport::SMTP;
use Email::Simple;
use Email::Simple::Creator;
use Sys::Hostname::Long;
use Text::Table;
use File::Slurp;
use Hydra::Helper::Nix;
sub statusDescription {
my ($buildstatus) = @_;
my $status = "Failed";
given ($buildstatus) {
when (0) { $status = "Success"; }
when (1) { $status = "Failed with non-zero exit code"; }
when (2) { $status = "Dependency failed"; }
when (4) { $status = "Cancelled"; }
}
return $status;
}
sub buildFinished {
my ($self, $db, $config, $build, $dependents) = @_;
die unless $build->finished;
my $prevBuild;
($prevBuild) = $db->resultset('Builds')->search(
{ project => $build->project->name
, jobset => $build->jobset->name
, job => $build->job->name
, system => $build->system
, finished => 1
, id => { '<', $build->id }
, -not => { buildstatus => { -in => [4, 3]} }
}, { order_by => ["id DESC"] }
);
# Do we want to send mail?
unless ($ENV{'HYDRA_FORCE_SEND_MAIL'}) {
return unless $build->jobset->enableemail && ($build->maintainers ne "" || $build->jobset->emailoverride ne "");
# If build is cancelled or aborted, do not send email.
return if $build->buildstatus == 4 || $build->buildstatus == 3;
# If there is a previous (that is not cancelled or aborted) build
# with same buildstatus, do not send email.
return if defined $prevBuild && ($build->buildstatus == $prevBuild->buildstatus);
}
# Send mail.
# !!! should use the Template Toolkit here.
my $to = (!$build->jobset->emailoverride eq "") ? $build->jobset->emailoverride : $build->maintainers;
print STDERR "sending mail notification to ", $to, "\n";
my $jobName = $build->project->name . ":" . $build->jobset->name . ":" . $build->job->name;
my $status = statusDescription($build->buildstatus);
my $baseurl = hostname_long;
my $sender = $config->{'notification_sender'} ||
(($ENV{'USER'} || "hydra") . "@" . $baseurl);
my $selfURI = $config->{'base_uri'} || "http://localhost:3000";
sub showTime { my ($x) = @_; return strftime('%Y-%m-%d %H:%M:%S', localtime($x)); }
my $infoTable = Text::Table->new({ align => "left" }, \ " | ", { align => "left" });
my @lines = (
[ "Build ID:", $build->id ],
[ "Nix name:", $build->nixname ],
[ "Short description:", $build->description || '(not given)' ],
[ "Maintainer(s):", $build->maintainers ],
[ "System:", $build->system ],
[ "Derivation store path:", $build->drvpath ],
[ "Output store path:", join(", ", map { $_->path } $build->buildoutputs) ],
[ "Time added:", showTime $build->timestamp ],
);
push @lines, (
[ "Build started:", showTime $build->starttime ],
[ "Build finished:", showTime $build->stoptime ],
[ "Duration:", $build->stoptime - $build->starttime . "s" ],
) if $build->starttime;
$infoTable->load(@lines);
my $inputsTable = Text::Table->new(
{ title => "Name", align => "left" }, \ " | ",
{ title => "Type", align => "left" }, \ " | ",
{ title => "Value", align => "left" });
@lines = ();
foreach my $input ($build->inputs) {
my $type = $input->type;
push @lines,
[ $input->name
, $input->type
, ( $input->type eq "build" || $input->type eq "sysbuild")
? $input->dependency->id
: ($input->type eq "string" || $input->type eq "boolean")
? $input->value : ($input->uri . ':' . $input->revision)
];
}
$inputsTable->load(@lines);
my $loglines = 50;
my $logtext = logContents($build->drvpath, $loglines);
$logtext = removeAsciiEscapes($logtext);
my $body = "Hi,\n"
. "\n"
. "This is to let you know that Hydra build " . $build->id
. " of job " . $jobName . " " . (defined $prevBuild ? "has changed from '" . statusDescription($prevBuild->buildstatus) . "' to '$status'" : "is '$status'" ) .".\n"
. "\n"
. "Complete build information can be found on this page: "
. "$selfURI/build/" . $build->id . "\n"
. ($build->buildstatus != 0 ? "\nThe last $loglines lines of the build log are shown at the bottom of this email.\n" : "")
. "\n"
. "A summary of the build information follows:\n"
. "\n"
. $infoTable->body
. "\n"
. "The build inputs were:\n"
. "\n"
. $inputsTable->title
. $inputsTable->rule('-', '+')
. $inputsTable->body
. "\n"
. "Regards,\n\nThe Hydra build daemon.\n"
. ($build->buildstatus != 0 ? "\n---\n$logtext" : "");
# stripping trailing spaces from lines
$body =~ s/[\ ]+$//gm;
my $email = Email::Simple->create(
header => [
To => $to,
From => "Hydra Build Daemon <$sender>",
Subject => "$status: Hydra job $jobName on " . $build->system . ", build " . $build->id,
'X-Hydra-Instance' => $baseurl,
'X-Hydra-Project' => $build->project->name,
'X-Hydra-Jobset' => $build->jobset->name,
'X-Hydra-Job' => $build->job->name,
'X-Hydra-System' => $build->system
],
body => "",
);
$email->body_set($body);
if (defined $ENV{'HYDRA_MAIL_SINK'}) {
# For testing, redirect all mail to a file.
write_file($ENV{'HYDRA_MAIL_SINK'}, { append => 1 }, $email->as_string . "\n");
} else {
sendmail($email);
}
}
1;

170
src/script/hydra-build
View file

@ -5,20 +5,11 @@ use List::MoreUtils qw(all);
use File::Basename;
use File::stat;
use Nix::Store;
use Hydra::Plugin;
use Hydra::Schema;
use Hydra::Helper::Nix;
use Hydra::Model::DB;
use Hydra::Helper::AddBuilds;
use Email::Sender::Simple qw(sendmail);
use Email::Sender::Transport::SMTP;
use Email::Simple;
use Email::Simple::Creator;
use Sys::Hostname::Long;
use Config::General;
use Text::Table;
use POSIX qw(strftime);
use Data::Dump qw(dump);
use feature qw/switch/;
STDOUT->autoflush();
@ -27,153 +18,6 @@ my $db = Hydra::Model::DB->new();
my $config = getHydraConfig();
sub statusDescription {
my ($buildstatus) = @_;
my $status = "Failed";
given ($buildstatus) {
when (0) { $status = "Success"; }
when (1) { $status = "Failed with non-zero exit code"; }
when (2) { $status = "Dependency failed"; }
when (4) { $status = "Cancelled"; }
}
return $status;
}
sub sendEmailNotification {
my ($build) = @_;
die unless $build->finished;
return unless $build->jobset->enableemail && ($build->maintainers ne "" || $build->jobset->emailoverride ne "");
# Do we want to send mail?
my $prevBuild;
($prevBuild) = $db->resultset('Builds')->search(
{ project => $build->project->name
, jobset => $build->jobset->name
, job => $build->job->name
, system => $build->system
, finished => 1
, id => { '<', $build->id }
, -not => { buildstatus => { -in => [4, 3]} }
}, { order_by => ["id DESC"] }
);
# If build is cancelled or aborted, do not send email.
return if $build->buildstatus == 4 || $build->buildstatus == 3;
# If there is a previous (that is not cancelled or aborted) build
# with same buildstatus, do not send email.
return if defined $prevBuild && ($build->buildstatus == $prevBuild->buildstatus);
# Send mail.
# !!! should use the Template Toolkit here.
print STDERR "sending mail notification to ", $build->maintainers, "\n";
my $jobName = $build->project->name . ":" . $build->jobset->name . ":" . $build->job->name;
my $status = statusDescription($build->buildstatus);
my $baseurl = hostname_long;
my $sender = $config->{'notification_sender'} ||
(($ENV{'USER'} || "hydra") . "@" . $baseurl);
my $selfURI = $config->{'base_uri'} || "http://localhost:3000";
sub showTime { my ($x) = @_; return strftime('%Y-%m-%d %H:%M:%S', localtime($x)); }
my $infoTable = Text::Table->new({ align => "left" }, \ " | ", { align => "left" });
my @lines = (
[ "Build ID:", $build->id ],
[ "Nix name:", $build->nixname ],
[ "Short description:", $build->description || '(not given)' ],
[ "Maintainer(s):", $build->maintainers ],
[ "System:", $build->system ],
[ "Derivation store path:", $build->drvpath ],
[ "Output store path:", join(", ", map { $_->path } $build->buildoutputs) ],
[ "Time added:", showTime $build->timestamp ],
);
push @lines, (
[ "Build started:", showTime $build->starttime ],
[ "Build finished:", showTime $build->stoptime ],
[ "Duration:", $build->stoptime - $build->starttime . "s" ],
) if $build->starttime;
$infoTable->load(@lines);
my $inputsTable = Text::Table->new(
{ title => "Name", align => "left" }, \ " | ",
{ title => "Type", align => "left" }, \ " | ",
{ title => "Value", align => "left" });
@lines = ();
foreach my $input ($build->inputs) {
my $type = $input->type;
push @lines,
[ $input->name
, $input->type
, ( $input->type eq "build" || $input->type eq "sysbuild")
? $input->dependency->id
: ($input->type eq "string" || $input->type eq "boolean")
? $input->value : ($input->uri . ':' . $input->revision)
];
}
$inputsTable->load(@lines);
my $loglines = 50;
my $logtext = logContents($build->drvpath, $loglines);
$logtext = removeAsciiEscapes($logtext);
my $body = "Hi,\n"
. "\n"
. "This is to let you know that Hydra build " . $build->id
. " of job " . $jobName . " " . (defined $prevBuild ? "has changed from '" . statusDescription($prevBuild->buildstatus) . "' to '$status'" : "is '$status'" ) .".\n"
. "\n"
. "Complete build information can be found on this page: "
. "$selfURI/build/" . $build->id . "\n"
. ($build->buildstatus != 0 ? "\nThe last $loglines lines of the build log are shown at the bottom of this email.\n" : "")
. "\n"
. "A summary of the build information follows:\n"
. "\n"
. $infoTable->body
. "\n"
. "The build inputs were:\n"
. "\n"
. $inputsTable->title
. $inputsTable->rule('-', '+')
. $inputsTable->body
. "\n"
. "Regards,\n\nThe Hydra build daemon.\n"
. ($build->buildstatus != 0 ? "\n---\n$logtext" : "");
# stripping trailing spaces from lines
$body =~ s/[\ ]+$//gm;
my $to = (!$build->jobset->emailoverride eq "") ? $build->jobset->emailoverride : $build->maintainers;
my $email = Email::Simple->create(
header => [
To => $to,
From => "Hydra Build Daemon <$sender>",
Subject => "$status: Hydra job $jobName on " . $build->system . ", build " . $build->id,
'X-Hydra-Instance' => $baseurl,
'X-Hydra-Project' => $build->project->name,
'X-Hydra-Jobset' => $build->jobset->name,
'X-Hydra-Job' => $build->job->name,
'X-Hydra-System' => $build->system
],
body => "",
);
$email->body_set($body);
print $email->as_string if $ENV{'HYDRA_MAIL_TEST'};
sendmail($email);
}
sub addBuildStepOutputs {
my ($step) = @_;
my $drv = derivationFromPath($step->drvpath);
@ -444,7 +288,14 @@ sub doBuild {
});
sendEmailNotification $build;
foreach my $plugin (Hydra::Plugin->plugins) {
eval {
$plugin->buildFinished($db, $config, $build, []);
};
if ($@) {
print STDERR "$plugin->buildFinished: $@\n";
}
}
}
@ -452,7 +303,8 @@ my $buildId = $ARGV[0] or die "syntax: $0 BUILD-ID\n";
print STDERR "performing build $buildId\n";
if ($ENV{'HYDRA_MAIL_TEST'}) {
sendEmailNotification $db->resultset('Builds')->find($buildId);
my $build = $db->resultset('Builds')->find($buildId);
$_->buildFinished($db, $config, $build, []) foreach Hydra::Plugin->plugins;
exit 0;
}