little irc integration plugin

1 files changed, 128 insertions, 0 deletions

diff --git a/doc/plugins/contrib/irker.mdwn b/doc/plugins/contrib/irker.mdwn
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+[[!template id=plugin name=irker author="[[anarcat]]"]]
+[[!tag type/special-purpose]]
+
+This plugin will configure your wiki to send IRC notifications using the [irker](http://www.catb.org/esr/irker/) notification bot.
+
+It is fairly simple and requires no configuration but installation of the irker package. For template configuration, patches from [Debian bug #824512](https://bugs.debian.org/824512) are necessary.
+
+[[!format perl """
+package IkiWiki::Plugin::irker;
+
+use warnings;
+use strict;
+use IkiWiki 3.00;
+
+sub import {
+    hook(type => "getsetup", id => "irker", call => \&getsetup);
+    hook(type => "checkconfig", id => "branchable", call => \&checkconfig,
+         first => 1);
+    hook(type => "genwrapper", id => "irker", call => \&genwrapper,
+         last => 1);
+}
+
+sub getsetup() {
+	return
+		plugin => {
+			safe => 0,
+			rebuild => undef,
+			section => "core",
+		},
+		irker_channels => {
+			type => "string",
+			example => ['ircs://irc.example.com/example'],
+			description => "IRC channels to send notifications to",
+			safe => 1,
+			rebuild => 0,
+		},
+		irker_template => {
+			type => "string",
+			example => "'%(bold)s%(project)s:%(reset)s %(green)s%(author)s%(reset)s %(repo)s:%(yellow)s%(branch)s%(reset)s * %(bold)s%(rev)s%(reset)s / %(bold)s%(files)s%(reset)s: %(logmsg)s %(brown)s%(url)s%(reset)s",
+			description => "Template to use for messages. Only supported with patch from https://bugs.debian.org/824512",
+			safe => 1,
+			rebuild => 0,
+		},
+		irker_hook => {
+			type => "string",
+			example => "irkerhook-git",
+			description => 'Hook to setup for notifications, will look in $PATH if File::Which is available, otherwise use absolute path.',
+			safe => 1,
+			rebuild => 0,
+		},
+}
+
+sub checkconfig {
+    use URI; # ikiwiki Depends on it
+    foreach my $channel (@{$config{'irker_channels'}}) {
+        my $uri = URI->new( $channel );
+        # inspired by http://stackoverflow.com/a/2599378/1174784
+        # and http://stackoverflow.com/a/4953329/1174784
+        if (!$uri->scheme || $uri->path =~ m/^([#&]?[^\x07\x2C\s]{,200})/) {
+            error("$channel is not a valid IRC channel URI");
+        }
+    }
+    # check if hook exists
+    if (-x $config{irker_hook}) {
+        # shortcut: already configured
+        return;
+    }
+    eval q{use File::Which};
+    # check with which, i available
+    if (!$@) {
+        my $hook;
+        if (!defined $config{'irker_hook'}) {
+            $config{'irker_hook'} = 'irkerhook-git';
+        }
+        $hook = which($config{'irker_hook'});
+        if (defined $hook) {
+            $config{'irker_hook'} = $hook;
+        }
+        else {
+            error("irker hook '$config{irker_hook}' not found in PATH");
+        }
+    }
+    if (!-x $config{irker_hook}) {
+        error("irker hook '$config{irker_hook}' not executable");
+    }
+}
+
+# Parses git_wrapper to find out where the git repository is.
+# cargo-culted from branchable.pm
+sub find_git_repository {
+	if ($config{rcs} eq 'git' &&
+	    $config{git_wrapper}=~m!^(.*)/hooks/post-update$!) {
+		return $1;
+	}
+	else {
+		return undef;
+	}
+}
+
+# setup the hook symlink and git configuration
+sub genwrapper() {
+    my $repo=find_git_repository();
+    if (defined $repo && defined $config{'irker_channels'}) {
+        if (!-l $repo . '/hooks/post-receive') {
+            if (-e $repo . '/hooks/post-receive') {
+                error('post-receive hook exists and is not a symlink, failed to setup hook');
+            }
+            symlink($config{'irker_hook'}, $repo . '/hooks/post-receive') || error('failed to symlink: $!');
+        }
+        my $channels = join(",", @{$config{'irker_channels'}});
+        exec { 'git' } ('config', '-C', $repo, 'config', 'irker.channels', $channels);
+        exec { 'git' } ('config', '-C', $repo, 'config', 'irker.channels', $config{'wikiname'});
+        if ($config{'irker_template'}) {
+            exec { 'git' } ('config', '-C', $repo, 'config', 'irker.channels', $config{'irker_template'});
+        }
+    }
+    else {
+        exec { 'git' } ('config', '-C', $repo, 'config', '--remove-section', 'irker');
+        if (-l $repo . '/hooks/post-receive' && 
+            readlink($repo . '/hooks/post-receive') =~ m/irkerhook/) {
+            unlink($repo . '/hooks/post-receive');
+        }
+    }
+    return "";
+}
+
+1
+"""]]