* Add a test suite for the mercurial backend, contributed by Emanuele Aina.

* Add a test suite for the svn backend.
* Daemonize before sending RPC pings, since that can take a while
  and/or hang.
* Daemonize before sending commit mails, as that can also take a long
  time/hang if the mail server is unhappy.
* Factor out commit mail sending code into new function.

5 files changed, 104 insertions, 129 deletions

diff --git a/IkiWiki/Plugin/inline.pm b/IkiWiki/Plugin/inline.pm
index c6c6c6a1e..e65b8ae71 100644
--- a/IkiWiki/Plugin/inline.pm
+++ b/IkiWiki/Plugin/inline.pm
@@ -342,7 +342,15 @@ sub pingurl (@) { #{{{
 		return;
 	}
 
-	# TODO: daemonize here so slow pings don't slow down wiki updates
+	# daemonize here so slow pings don't slow down wiki updates
+	eval q{use POSIX ’setsid’};
+	chdir '/';
+	open STDIN, '/dev/null';
+	open STDOUT, '>/dev/null';
+	defined(my $pid = fork) or error("Can't fork: $!");
+	return if $pid;
+	setsid() or error("Can't start a new session: $!");
+	open STDERR, '>&STDOUT' or error("Can’t dup stdout: $!");
 
 	foreach my $page (keys %toping) {
 		my $title=pagetitle(basename($page));
diff --git a/IkiWiki/Rcs/git.pm b/IkiWiki/Rcs/git.pm
index 5f4b090c3..46adf1657 100644
--- a/IkiWiki/Rcs/git.pm
+++ b/IkiWiki/Rcs/git.pm
@@ -432,41 +432,13 @@ sub rcs_notify () { #{{{
 	}
 
 	require IkiWiki::UserInfo;
-	my @email_recipients = commit_notify_list($user, @changed_pages);
-	return if !@email_recipients;
-
-	# TODO: if a commit spans multiple pages, this will send
-	# subscribers a diff that might contain pages they did not
-	# sign up for. Should separate the diff per page and
-	# reassemble into one mail with just the pages subscribed to.
-	my $diff = join "\n", run_or_die('git-diff', "${sha1}^", $sha1);
-
-	my $subject="update of $config{wikiname}'s ";
-	if (@changed_pages > 2) {
-		$subject .= "$changed_pages[0] $changed_pages[1] etc";
-	} else {
-		$subject .= join " ", @changed_pages;
-	}
-	$subject .= " by $user";
-
-	my $template = template("notifymail.tmpl");
-	$template->param(
-		wikiname => $config{wikiname},
-		diff     => $diff,
-		user     => $user,
-		message  => $message,
-	);
-
-	eval q{use Mail::Sendmail};
-	error($@) if $@;
-	foreach my $email (@email_recipients) {
-		sendmail(
-			To      => $email,
-			From    => "$config{wikiname} <$config{adminemail}>",
-			Subject => $subject,
-			Message => $template->output,
-		) or error("Failed to send update notification mail: $!");
-	}
+	send_commit_mails(
+		sub {
+			$message;
+		},
+		sub {
+			join "\n", run_or_die('git-diff', "${sha1}^", $sha1);
+		}, $user, @changed_pages);
 } #}}}
 
 sub rcs_getctime ($) { #{{{
diff --git a/IkiWiki/Rcs/svn.pm b/IkiWiki/Rcs/svn.pm
index f4c8e92c6..ee5065379 100644
--- a/IkiWiki/Rcs/svn.pm
+++ b/IkiWiki/Rcs/svn.pm
@@ -201,11 +201,6 @@ sub rcs_notify () { #{{{
 	
 	my $user=`svnlook author $config{svnrepo} -r $rev`;
 	chomp $user;
-	my $message=`svnlook log $config{svnrepo} -r $rev`;
-	if ($message=~/$config{web_commit_regexp}/) {
-		$user=defined $2 ? "$2" : "$3";
-		$message=$4;
-	}
 
 	my @changed_pages;
 	foreach my $change (`svnlook changed $config{svnrepo} -r $rev`) {
@@ -214,44 +209,20 @@ sub rcs_notify () { #{{{
 			push @changed_pages, $1;
 		}
 	}
-		
+	
 	require IkiWiki::UserInfo;
-	my @email_recipients=commit_notify_list($user, @changed_pages);
-	if (@email_recipients) {
-		# TODO: if a commit spans multiple pages, this will send
-		# subscribers a diff that might contain pages they did not
-		# sign up for. Should separate the diff per page and
-		# reassemble into one mail with just the pages subscribed to.
-		my $diff=`svnlook diff $config{svnrepo} -r $rev --no-diff-deleted`;
-
-		my $subject="update of $config{wikiname}'s ";
-		if (@changed_pages > 2) {
-			$subject.="$changed_pages[0] $changed_pages[1] etc";
-		}
-		else {
-			$subject.=join(" ", @changed_pages);
-		}
-		$subject.=" by $user";
-
-		my $template=template("notifymail.tmpl");
-		$template->param(
-			wikiname => $config{wikiname},
-			diff => $diff,
-			user => $user,
-			message => $message,
-		);
-		
-		eval q{use Mail::Sendmail};
-		error($@) if $@;
-		foreach my $email (@email_recipients) {
-			sendmail(
-				To => $email,
-				From => "$config{wikiname} <$config{adminemail}>",
-				Subject => $subject,
-				Message => $template->output,
-			) or error("Failed to send update notification mail");
-		}
-	}
+	send_commit_mails(
+		sub {
+			my $message=`svnlook log $config{svnrepo} -r $rev`;
+			if ($message=~/$config{web_commit_regexp}/) {
+				$user=defined $2 ? "$2" : "$3";
+				$message=$4;
+			}
+			return $message;
+		},
+		sub {
+			`svnlook diff $config{svnrepo} -r $rev --no-diff-deleted`;
+		}, $user, @changed_pages);
 } #}}}
 
 sub rcs_getctime ($) { #{{{
diff --git a/IkiWiki/Rcs/tla.pm b/IkiWiki/Rcs/tla.pm
index 9cd795e31..be5ec0601 100644
--- a/IkiWiki/Rcs/tla.pm
+++ b/IkiWiki/Rcs/tla.pm
@@ -164,7 +164,6 @@ sub rcs_notify () { #{{{
 	my $head = Mail::Header->new(\*LOG);
 	close(LOG);
 
-	my $message = $head->get("Summary");
 	my $user = $head->get("Creator");
 
 	my $newfiles = $head->get("New-files");
@@ -174,57 +173,27 @@ sub rcs_notify () { #{{{
 	my @changed_pages = grep { !/(^.*\/)?\.arch-ids\/.*\.id$/ }
 		split(/ /, "$newfiles $modfiles $remfiles .arch-ids/fake.id");
 
-	if ($message =~ /$config{web_commit_regexp}/) {
-		$user=defined $2 ? "$2" : "$3";
-		$message=$4;
-	}
-
 	require IkiWiki::UserInfo;
-	my @email_recipients=commit_notify_list($user, @changed_pages);
-	if (@email_recipients) {
-		# TODO: if a commit spans multiple pages, this will send
-		# subscribers a diff that might contain pages they did not
-		# sign up for. Should separate the diff per page and
-		# reassemble into one mail with just the pages subscribed to.
-		my $logs = `tla logs -d $config{srcdir}`;
-		my @changesets = reverse split(/\n/, $logs);
-		my $i;
-
-		for($i=0;$i<$#changesets;$i++) {
-			last if $changesets[$i] eq $rev;
-		}
-
-		my $revminusone = $changesets[$i+1];
-		my $diff=`tla diff -d $ENV{ARCH_TREE_ROOT} $revminusone`;
-
-		my $subject="update of $config{wikiname}'s ";
-		if (@changed_pages > 2) {
-			$subject.="$changed_pages[0] $changed_pages[1] etc";
-		}
-		else {
-			$subject.=join(" ", @changed_pages);
-		}
-		$subject.=" by $user";
-
-		my $template=template("notifymail.tmpl");
-		$template->param(
-			wikiname => $config{wikiname},
-			diff => $diff,
-			user => $user,
-			message => $message,
-		);
-
-		eval q{use Mail::Sendmail};
-		error($@) if $@;
-		foreach my $email (@email_recipients) {
-			sendmail(
-				To => $email,
-				From => "$config{wikiname} <$config{adminemail}>",
-				Subject => $subject,
-				Message => $template->output,
-			) or error("Failed to send update notification mail");
-		}
-	}
+	send_commit_mails(
+		sub {
+			my $message = $head->get("Summary");
+			if ($message =~ /$config{web_commit_regexp}/) {
+				$user=defined $2 ? "$2" : "$3";
+				$message=$4;
+			}
+		},
+		sub {
+			my $logs = `tla logs -d $config{srcdir}`;
+			my @changesets = reverse split(/\n/, $logs);
+			my $i;
+
+			for($i=0;$i<$#changesets;$i++) {
+				last if $changesets[$i] eq $rev;
+			}
+	
+			my $revminusone = $changesets[$i+1];
+			`tla diff -d $ENV{ARCH_TREE_ROOT} $revminusone`;
+		}, $user, @changed_pages);
 } #}}}
 
 sub rcs_getctime ($) { #{{{
diff --git a/IkiWiki/UserInfo.pm b/IkiWiki/UserInfo.pm
index ae63d8023..34f05203a 100644
--- a/IkiWiki/UserInfo.pm
+++ b/IkiWiki/UserInfo.pm
@@ -108,4 +108,59 @@ sub commit_notify_list ($@) { #{{{
 	return @ret;
 } #}}}
 
+sub send_commit_mails ($$$@) { #{{{
+	my $messagesub=shift;
+	my $diffsub=shift;
+	my $user=shift;
+	my @changed_pages=shift;
+
+	my @email_recipients=commit_notify_list($user, @changed_pages);
+	if (@email_recipients) {
+		# TODO: if a commit spans multiple pages, this will send
+		# subscribers a diff that might contain pages they did not
+		# sign up for. Should separate the diff per page and
+		# reassemble into one mail with just the pages subscribed to.
+		my $diff=$diffsub->();
+		my $message=$messagesub->();
+
+		my $subject="update of $config{wikiname}'s ";
+		if (@changed_pages > 2) {
+			$subject.="$changed_pages[0] $changed_pages[1] etc";
+		}
+		else {
+			$subject.=join(" ", @changed_pages);
+		}
+		$subject.=" by $user";
+
+		my $template=template("notifymail.tmpl");
+		$template->param(
+			wikiname => $config{wikiname},
+			diff => $diff,
+			user => $user,
+			message => $message,
+		);
+
+		# Daemonize, in case the mail sending takes a while.
+		eval q{use POSIX ’setsid’};
+		chdir '/';
+		open STDIN, '/dev/null';
+		open STDOUT, '>/dev/null';
+		defined(my $pid = fork) or error("Can't fork: $!");
+		return if $pid;
+		setsid() or error("Can't start a new session: $!");
+		open STDERR, '>&STDOUT' or error("Can’t dup stdout: $!");
+
+		eval q{use Mail::Sendmail};
+		error($@) if $@;
+		foreach my $email (@email_recipients) {
+			sendmail(
+				To => $email,
+				From => "$config{wikiname} <$config{adminemail}>",
+				Subject => $subject,
+				Message => $template->output,
+			) or error("Failed to send update notification mail");
+		}
+	}
+} #}}}
+
 1