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<title>[1075] sites/trunk: Add the Slack commit hook.</title>
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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="http://meta.trac.wordpress.org/changeset/1075">1075</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"http://meta.trac.wordpress.org/changeset/1075","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>nacin</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2014-12-30 22:36:32 +0000 (Tue, 30 Dec 2014)</dd>
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<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>Add the Slack commit hook.</pre>

<h3>Added Paths</h3>
<ul>
<li>sites/trunk/svn.wordpress.org/</li>
<li>sites/trunk/svn.wordpress.org/bin/</li>
<li><a href="#sitestrunksvnwordpressorgbinslackcommithookphp">sites/trunk/svn.wordpress.org/bin/slack-commit-hook.php</a></li>
<li>sites/trunk/svn.wordpress.org/includes/</li>
<li>sites/trunk/svn.wordpress.org/includes/slack-commit-hook/</li>
<li><a href="#sitestrunksvnwordpressorgincludesslackcommithookconfigphp">sites/trunk/svn.wordpress.org/includes/slack-commit-hook/config.php</a></li>
<li><a href="#sitestrunksvnwordpressorgincludesslackcommithooksenderphp">sites/trunk/svn.wordpress.org/includes/slack-commit-hook/sender.php</a></li>
<li><a href="#sitestrunksvnwordpressorgincludesslackcommithooktracphp">sites/trunk/svn.wordpress.org/includes/slack-commit-hook/trac.php</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="sitestrunksvnwordpressorgbinslackcommithookphp"></a>
<div class="addfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Added: sites/trunk/svn.wordpress.org/bin/slack-commit-hook.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- sites/trunk/svn.wordpress.org/bin/slack-commit-hook.php                           (rev 0)
+++ sites/trunk/svn.wordpress.org/bin/slack-commit-hook.php     2014-12-30 22:36:32 UTC (rev 1075)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -0,0 +1,20 @@
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+#!/usr/bin/env php
+<?php
+
+if ( $argc !== 4 ) {
+       echo "Usage: <trac> <repo> <rev>\n";
+       exit( 1 );
+}
+
+define( 'INC', dirname( __DIR__ ) . '/includes/slack-commit-hook/' );
+require INC . 'sender.php';
+require INC . 'trac.php';
+require INC . 'config.php';
+
+list( , $trac, $repo, $rev ) = $argv;
+
+$slack_hook = 'https://hooks.slack.com/services/...';
+$sender = new \SlackCommitHook\Sender( $trac, $repo, $rev, $slack_hook );
+// $sender->use_test_channel( true );
+// $sender->set_svnlook_executable( ... );
+$sender->run();
</ins><span class="cx" style="display: block; padding: 0 10px">Property changes on: sites/trunk/svn.wordpress.org/bin/slack-commit-hook.php
</span><span class="cx" style="display: block; padding: 0 10px">___________________________________________________________________
</span></span></pre></div>
<a id="svneolstyle"></a>
<div class="addfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Added: svn:eol-style</h4></div>
<ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+native
</ins><span class="cx" style="display: block; padding: 0 10px">\ No newline at end of property
</span><a id="sitestrunksvnwordpressorgincludesslackcommithookconfigphp"></a>
<div class="addfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Added: sites/trunk/svn.wordpress.org/includes/slack-commit-hook/config.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- sites/trunk/svn.wordpress.org/includes/slack-commit-hook/config.php                               (rev 0)
+++ sites/trunk/svn.wordpress.org/includes/slack-commit-hook/config.php 2014-12-30 22:36:32 UTC (rev 1075)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -0,0 +1,65 @@
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+<?php
+
+namespace SlackCommitHook;
+
+class Core_Trac extends Trac {
+       protected $channels = array( '#core', '#core-commits' );
+       protected $username = 'WordPress commit';
+       protected $ticket_range = array( 3, 5 );
+       protected $commit_range = array( 3, 5 );
+
+       /**
+        * File paths that cause commits to be piped to particular channels.
+        * Start regex matches with # as your delimiter.
+        */
+       protected $channel_matcher = array(
+               'wp-content/themes'       => '#core-themes',
+               'customize'               => '#core-customize',
+               'editor-expand.js'        => '#feature-focus',
+               'wp-admin/css/edit.css'   => '#feature-focus',
+               'wp-admin/css/editor.css' => '#feature-focus',
+               'press-this.php'          => '#feature-pressthis',
+       );
+}
+
+class Meta_Trac extends Trac {
+       protected $channels = array( '#meta', '#meta-commits' );
+       protected $username = 'WordPress.org Meta commit';
+
+       protected $channel_matcher = array(
+               'translate.wordpress.org/' => '#meta-i18n',
+               'global.wordpress.org/'    => '#meta-i18n',
+               'translations'             => '#meta-i18n',
+               'developer-reference/'     => '#meta-devhub',
+               'wporg-developer/'         => '#meta-devhub',
+       );
+}
+
+class bbPress_Trac extends Trac {
+       protected $channels = array( '#bbpress', '#bbpress-commits' );
+       protected $username = 'bbPress commit';
+       protected $color    = '#080';
+       protected $emoji    = ':bbpress:';
+}
+
+class BuddyPress_Trac extends Trac {
+       protected $channels = array( '#buddypress', '#buddypress-commits' );
+       protected $username = 'BuddyPress commit';
+       protected $color    = '#d84800';
+       protected $emoji    = ':buddypress:';
+}
+
+class Dotorg_Trac extends Trac {
+       protected $channels = 'dotorg';
+       protected $username = 'Private dotorg commit';
+}
+
+class Deploy_Trac extends Trac {
+       protected $channels = 'dotorg';
+       protected $username = 'Deploy commit';
+}
+
+class GlotPress_Trac extends Trac {
+       protected $channels = '#glotpress';
+       protected $username = 'GlotPress commit';
+}
</ins><span class="cx" style="display: block; padding: 0 10px">Property changes on: sites/trunk/svn.wordpress.org/includes/slack-commit-hook/config.php
</span><span class="cx" style="display: block; padding: 0 10px">___________________________________________________________________
</span></span></pre></div>
<a id="svneolstyle"></a>
<div class="addfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Added: svn:eol-style</h4></div>
<ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+native
</ins><span class="cx" style="display: block; padding: 0 10px">\ No newline at end of property
</span><a id="sitestrunksvnwordpressorgincludesslackcommithooksenderphp"></a>
<div class="addfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Added: sites/trunk/svn.wordpress.org/includes/slack-commit-hook/sender.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- sites/trunk/svn.wordpress.org/includes/slack-commit-hook/sender.php                               (rev 0)
+++ sites/trunk/svn.wordpress.org/includes/slack-commit-hook/sender.php 2014-12-30 22:36:32 UTC (rev 1075)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -0,0 +1,119 @@
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+<?php
+
+namespace SlackCommitHook;
+
+class Sender {
+       protected $trac;
+       protected $repo;
+       protected $rev;
+       protected $slack_hook;
+
+       protected $test_mode = false;
+       protected $svnlook = '/usr/bin/svnlook';
+
+       public function __construct( $trac, $repo, $rev, $slack_hook ) {
+               $this->set_trac( $trac );
+               $this->repo = $repo;
+               $this->rev = $rev;
+               $this->slack_hook = $slack_hook;
+       }
+
+       public function use_test_channel( $enabled ) {
+               $this->test_mode = (bool) $enabled;
+       }
+
+       public function set_svnlook_executable( $path ) {
+               $this->svnlook = $path;
+       }
+
+       public function run() {
+               $payload = $this->generate_payload();
+               foreach ( $this->trac->get_channels( $this->svnlook( 'changed' ) ) as $channel ) {
+                       $this->send( $channel, $payload );
+               }
+       }
+
+       protected function set_trac( $trac ) {
+               $class = __NAMESPACE__ . '\\' . $trac . '_Trac';
+               $this->trac = new $class;
+       }
+
+       protected function generate_payload() {
+               $author = $this->svnlook( 'author' );
+               $log = $this->format_log_for_slack( $this->svnlook( 'log' ) );
+
+               $url = $this->trac->get_commit_template( $this->rev );
+               $revision = 'r' . $this->rev;
+
+               $username = $this->trac->get_username();
+               $emoji    = $this->trac->get_emoji();
+               $color    = $this->trac->get_color();
+
+               $pretext = "*$username <$url|$revision>* by $author:";
+               $fallback = "$revision by $author: $log";
+
+               return array(
+                       'channel'     => '#test',
+                       'username'    => $username,
+                       'icon_emoji'  => $emoji,
+                       'attachments' => array( array(
+                               'color'     => $color,
+                               'pretext'   => $pretext,
+                               'text'      => $log,
+                               'fallback'  => $fallback,
+                               'mrkdwn_in' => array( 'text', 'pretext' ),
+                       ) ),
+               );
+       }
+
+       protected function format_log_for_slack( $log ) {
+               foreach ( $this->trac->get_log_replacements() as $find => $replace ) {
+                       $log = preg_replace( $find, '<' . $replace . '|$0>', $log );
+               }
+               return $log;
+       }
+
+       protected function svnlook( $subcommand ) {
+               $args = array(
+                       $subcommand,
+                       '-r' . $this->rev,
+                       $this->repo,
+               );
+               $args = array_map( 'escapeshellarg', $args );
+               $command = escapeshellcmd( $this->svnlook ) . ' ' . implode( ' ', $args );
+
+               if ( $subcommand === 'changed' ) {
+                       $command .= ' | awk \'{print $2}\'';
+               }
+
+               exec( $command, $output, $return_var );
+               if ( $return_var === 0 ) {
+                       return trim( implode( "\n", $output ) );
+               }
+               $this->error( "Error processing svnlook( $subcommand )" );
+       }
+
+       protected function error( $message ) {
+               error_log( $message . ' for ' . $this->repo . ' -r ' . $this->rev );
+               exit( 1 );
+       }
+
+       protected function send( $channel, $payload ) {
+               if ( $this->test_mode ) {
+                       $payload['attachments'][0]['pretext']  = "[$channel] " . $payload['attachments'][0]['pretext'];
+                       $payload['attachments'][0]['fallback'] = "[$channel] " . $payload['attachments'][0]['fallback'];
+               } else {
+                       $payload['channel'] = $channel;
+               }
+
+               $context = stream_context_create( array(
+                       'http' => array(
+                               'method'  => 'POST',
+                               'header'  => 'Content-Type: application/x-www-form-urlencoded' . PHP_EOL,
+                               'content' => http_build_query( array( 'payload' => json_encode( $payload ) ) ),
+                       ),
+               ) );
+
+               file_get_contents( $this->slack_hook, false, $context );
+       }
+}
</ins><span class="cx" style="display: block; padding: 0 10px">Property changes on: sites/trunk/svn.wordpress.org/includes/slack-commit-hook/sender.php
</span><span class="cx" style="display: block; padding: 0 10px">___________________________________________________________________
</span></span></pre></div>
<a id="svneolstyle"></a>
<div class="addfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Added: svn:eol-style</h4></div>
<ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+native
</ins><span class="cx" style="display: block; padding: 0 10px">\ No newline at end of property
</span><a id="sitestrunksvnwordpressorgincludesslackcommithooktracphp"></a>
<div class="addfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Added: sites/trunk/svn.wordpress.org/includes/slack-commit-hook/trac.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- sites/trunk/svn.wordpress.org/includes/slack-commit-hook/trac.php                         (rev 0)
+++ sites/trunk/svn.wordpress.org/includes/slack-commit-hook/trac.php   2014-12-30 22:36:32 UTC (rev 1075)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -0,0 +1,77 @@
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+<?php
+
+namespace SlackCommitHook;
+
+abstract class Trac {
+       protected $channels = '#test';
+       protected $username = 'Commit';
+       protected $color    = '#21759b';
+       protected $emoji    = ':wordpress:';
+
+       protected $ticket_template = 'https://%s.trac.wordpress.org/ticket/%s';
+       protected $commit_template = 'https://%s.trac.wordpress.org/changeset/%s';
+       protected $ticket_range = array( 1, 5 );
+       protected $commit_range = array( 1, 5 );
+
+       function __construct() {
+               $this->trac = str_replace( '_trac', '', strtolower( get_class( $this ) ) );
+       }
+
+       function get_username() {
+               return $this->username;
+       }
+
+       function get_color() {
+               return $this->color;
+       }
+
+       function get_emoji() {
+               return $this->emoji;
+       }
+
+       function get_ticket_template( $template = '%s' ) {
+               return sprintf( $this->ticket_template, $this->trac, $template );
+       }
+
+       function get_commit_template( $template = '%s' ) {
+               return sprintf( $this->commit_template, $this->trac, $template );
+       }
+
+       function get_digit_capture( $range ) {
+               $min = $range[0] - 1;
+               $max = $range[1] - 1;
+               return '[0-9]\d{' . $min . ',' . $max . '}';
+       }
+
+       function get_log_replacements() {
+               $commit_template = $this->get_commit_template( '$1' );
+               $ticket_digits = $this->get_digit_capture( $this->ticket_range );
+               $commit_digits = $this->get_digit_capture( $this->commit_range );
+
+               return array(
+                       "/#($ticket_digits)\b/"   => $this->get_ticket_template( '$1' ),
+                       "/\[($commit_digits)\]/"  => $commit_template,
+                       "/\br($commit_digits)\b/" => $commit_template,
+               );
+       }
+
+       function get_channels( $changed_files = null ) {
+               $channels = (array) $this->channels;
+
+               if ( empty( $this->channel_matcher ) || empty( $changed_files ) ) {
+                       return $channels;
+               }
+
+               foreach ( $this->channel_matcher as $needle => $channels_to_add ) {
+                       if ( $match[0] === '#' ) {
+                               // Append PCRE_MULTILINE so ^ and $ refer to individual lines.
+                               if ( preg_match( $needle . 'm', $changed_files ) ) {
+                                       $channels = array_merge( $channels, (array) $channels_to_add );
+                               }
+                       } elseif ( false !== strpos( $changed_files, $needle ) ) {
+                               $channels = array_merge( $channels, (array) $channels_to_add );
+                       }
+               }
+               return $channels;
+       }
+}
</ins><span class="cx" style="display: block; padding: 0 10px">Property changes on: sites/trunk/svn.wordpress.org/includes/slack-commit-hook/trac.php
</span><span class="cx" style="display: block; padding: 0 10px">___________________________________________________________________
</span></span></pre></div>
<a id="svneolstyle"></a>
<div class="addfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Added: svn:eol-style</h4></div>
<ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+native
</ins><span class="cx" style="display: block; padding: 0 10px">\ No newline at end of property
</span></div>

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