If multiple dependent builds fail, send a single email

src/lib/Hydra/Plugin/EmailNotification.pm

@@ -12,6 +12,7 @@ use Sys::Hostname::Long;
 use Text::Table;
 use File::Slurp;
 use Hydra::Helper::Nix;
+use Hydra::Helper::CatalystUtils;
 
 
 sub statusDescription {
@@ -29,13 +30,9 @@ sub statusDescription {
 }
 
 
-sub buildFinished {
+sub getPrevBuild {
-    my ($self, $build, $dependents) = @_;
+    my ($self, $build) = @_;
-
+    return $self->{db}->resultset('Builds')->search(
-    die unless $build->finished;
-
-    my $prevBuild;
-    ($prevBuild) = $self->{db}->resultset('Builds')->search(
         { project => $build->project->name
          , jobset => $build->jobset->name
          , job => $build->job->name
@@ -43,28 +40,58 @@ sub buildFinished {
          , finished => 1
          , id => { '<', $build->id }
           , -not => { buildstatus => { -in => [4, 3]} }
-        }, { order_by => ["id DESC"] }
+        }, { order_by => ["id DESC"], rows => 1 }
-        );
+        )->single;
+}
 
-    # Do we want to send mail?
+
+sub showJobName {
+    my ($build) = @_;
+    return $build->project->name . ":" . $build->jobset->name . ":" . $build->job->name;
+}
+
+
+sub buildFinished {
+    my ($self, $build, $dependents) = @_;
+
+    die unless $build->finished;
+
+    # Figure out to whom to send notification for each build.  For
+    # each email address, we send one aggregate email listing only the
+    # relevant builds for that address.
+    my %addresses;
+    foreach my $b ($build, @{$dependents}) {
+        my $prevBuild = getPrevBuild($self, $b);
+        my $to = $b->jobset->emailoverride ne "" ? $b->jobset->emailoverride : $b->maintainers;
+
+        foreach my $address (split ",", $to) {
+            $address = trim $address;
+
+            # Do we want to send mail for this build?
             unless ($ENV{'HYDRA_FORCE_SEND_MAIL'}) {
-        return unless $build->jobset->enableemail && ($build->maintainers ne "" || $build->jobset->emailoverride ne "");
+                next unless $b->jobset->enableemail;
 
                 # If build is cancelled or aborted, do not send email.
-        return if $build->buildstatus == 4 || $build->buildstatus == 3;
+                next if $b->buildstatus == 4 || $b->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);
+                next if defined $prevBuild && ($b->buildstatus == $prevBuild->buildstatus);
             }
 
-    # Send mail.
+            $addresses{$address} //= { builds => [] };
+            push @{$addresses{$address}->{builds}}, $b;
+        }
+    }
+
+    # Send an email to each interested address.
     # !!! should use the Template Toolkit here.
 
-    my $to = (!$build->jobset->emailoverride eq "") ? $build->jobset->emailoverride : $build->maintainers;
+    for my $to (keys %addresses) {
         print STDERR "sending mail notification to ", $to, "\n";
+        my @builds = @{$addresses{$to}->{builds}};
 
-    my $jobName = $build->project->name . ":" . $build->jobset->name . ":" . $build->job->name;
+        my $jobName = showJobName $build;
 
         my $status = statusDescription($build->buildstatus);
 
@@ -116,10 +143,18 @@ sub buildFinished {
         my $logtext = logContents($build->drvpath, $loglines);
         $logtext = removeAsciiEscapes($logtext);
 
+        my $prevBuild = getPrevBuild($self, $build);
+
+        my $foo = "\nIn addition, the following jobs failed:\n";
+        foreach my $b (@builds) {
+            $foo .= "  " . showJobName($b) . " ($selfURI/build/" . $b->id . ")\n";
+        }
+
         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"
+            . $foo
             . "\n"
             . "Complete build information can be found on this page: "
             . "$selfURI/build/" . $build->id . "\n"
@@ -162,6 +197,7 @@ sub buildFinished {
         } else {
             sendmail($email);
         }
+    }
 }