hide version for bundled plugins because it's meaningless; for everything else support showing version using git (if about[0] is null)

classes/pref/prefs.php

@@ -795,6 +795,7 @@ class Pref_Prefs extends Handler_Protected {
 
 		foreach ($tmppluginhost->get_plugins() as $name => $plugin) {
 			$about = $plugin->about();
+			$version = htmlspecialchars($this->_get_plugin_version($plugin));
 
 			if ($about[3] ?? false) {
 				$is_checked = in_array($name, $system_enabled) ? "checked" : "";
@@ -811,9 +812,11 @@ class Pref_Prefs extends Handler_Protected {
 								<i class='material-icons'>open_in_new</i> <?= __("More info...") ?></button>
 					<?php } ?>
 
+					<?php if ($version) { ?>
 						<div dojoType='dijit.Tooltip' connectId='PLABEL-<?= htmlspecialchars($name) ?>' position='after'>
-						<?= htmlspecialchars(T_sprintf("v%.2f, by %s", $about[0], $about[2])) ?>
+							<?= $version ?>
 						</div>
+					<?php } ?>
 				</fieldset>
 				<?php
 			}
@@ -829,6 +832,7 @@ class Pref_Prefs extends Handler_Protected {
 
 		foreach ($tmppluginhost->get_plugins() as $name => $plugin) {
 			$about = $plugin->about();
+			$version = htmlspecialchars($this->_get_plugin_version($plugin));
 
 			if (empty($about[3]) || $about[3] == false) {
 
@@ -875,9 +879,11 @@ class Pref_Prefs extends Handler_Protected {
 									<i class='material-icons'>open_in_new</i> <?= __("More info...") ?></button>
 					<?php } ?>
 
-					<div dojoType='dijit.Tooltip' connectId="PLABEL-<?= htmlspecialchars($name) ?>" position='after'>
-						<?= htmlspecialchars(T_sprintf("v%.2f, by %s", $about[0], $about[2])) ?>
+					<?php if ($version) { ?>
+						<div dojoType='dijit.Tooltip' connectId='PLABEL-<?= htmlspecialchars($name) ?>' position='after'>
+							<?= $version ?>
 						</div>
+					<?php } ?>
 
 				</fieldset>
 				<?php
@@ -1093,6 +1099,49 @@ class Pref_Prefs extends Handler_Protected {
 		set_pref(Prefs::_ENABLED_PLUGINS, $plugins);
 	}
 
+	function _get_version_from_git(string $dir) {
+		$descriptorspec = [
+			1 => ["pipe", "w"], // STDOUT
+			2 => ["pipe", "w"], // STDERR
+		];
+
+		$proc = proc_open("git --no-pager log --pretty=\"%ct %h\" -n1 HEAD",
+						$descriptorspec, $pipes, $dir);
+
+		if (is_resource($proc)) {
+			$stdout = stream_get_contents($pipes[1]);
+			$stderr = stream_get_contents($pipes[2]);
+			$status = proc_close($proc);
+
+			if ($status == 0) {
+				list($timestamp, $commit) = explode(" ", $stdout);
+				return trim(strftime("%y.%m", (int)$timestamp) . "-$commit");
+			} else {
+				return T_sprintf("Git error [RC=%d]: %s", $status, $stderr);
+			}
+		}
+	}
+
+	function _get_plugin_version(Plugin $plugin) {
+		$about = $plugin->about();
+
+		if (!empty($about[0])) {
+			return T_sprintf("v%.2f, by %s", $about[0], $about[2]);
+		} else {
+			$ref = new ReflectionClass(get_class($plugin));
+
+			$plugin_dir = dirname($ref->getFileName());
+
+			if (basename($plugin_dir) == "plugins") {
+				return "";
+			}
+
+			if (is_dir("$plugin_dir/.git")) {
+				return T_sprintf("v%s, by %s", $this->_get_version_from_git($plugin_dir), $about[2]);
+			}
+		}
+	}
+
 	static function _get_updated_plugins() {
 		$root_dir = dirname(dirname(__DIR__)); # we're in classes/pref/
 		$plugin_dirs = array_filter(glob("$root_dir/plugins.local/*"), "is_dir");

plugins/af_comics/init.php

@@ -5,7 +5,7 @@ class Af_Comics extends Plugin {
 	private $filters = array();
 
 	function about() {
-		return array(2.0,
+		return array(null,
 			"Fixes RSS feeds of assorted comic strips",
 			"fox");
 	}

plugins/af_fsckportal/init.php

@@ -4,7 +4,7 @@ class Af_Fsckportal extends Plugin {
 	private $host;
 
 	function about() {
-		return array(1.0,
+		return array(null,
 			"Remove feedsportal spamlinks from article content",
 			"fox");
 	}

plugins/af_proxy_http/init.php

@@ -8,7 +8,7 @@ class Af_Proxy_Http extends Plugin {
 	private $cache;
 
 	function about() {
-		return array(1.0,
+		return array(null,
 			"Loads media served over plain HTTP via built-in secure proxy",
 			"fox");
 	}

plugins/af_psql_trgm/init.php

@@ -7,7 +7,7 @@ class Af_Psql_Trgm extends Plugin {
 	private $default_min_length = 32;
 
 	function about() {
-		return array(1.0,
+		return array(null,
 			"Marks similar articles as read (requires pg_trgm)",
 			"fox");
 	}

plugins/af_readability/init.php

@@ -10,7 +10,7 @@ class Af_Readability extends Plugin {
 	private $host;
 
 	function about() {
-		return array(1.0,
+		return array(null,
 			"Try to inline article content using Readability",
 			"fox");
 	}

plugins/af_redditimgur/init.php

@@ -8,7 +8,7 @@ class Af_RedditImgur extends Plugin {
 	private $fallback_preview_urls = [];
 
 	function about() {
-		return array(1.0,
+		return array(null,
 			"Inline images (and other content) in Reddit RSS feeds",
 			"fox");
 	}

plugins/af_unburn/init.php

@@ -3,7 +3,7 @@ class Af_Unburn extends Plugin {
 	private $host;
 
 	function about() {
-		return array(1.0,
+		return array(null,
 			"Resolves feedburner and similar feed redirector URLs (requires CURL)",
 			"fox");
 	}

plugins/af_youtube_embed/init.php

@@ -3,7 +3,7 @@ class Af_Youtube_Embed extends Plugin {
 	private $host;
 
 	function about() {
-		return array(1.0,
+		return array(null,
 			"Embed videos in Youtube RSS feeds (and whitelist Youtube iframes)",
 			"fox");
 	}

plugins/af_zz_noautoplay/init.php

@@ -3,7 +3,7 @@ class Af_Zz_NoAutoPlay extends Plugin {
 	private $host;
 
 	function about() {
-		return array(1.0,
+		return array(null,
 			"Don't autoplay HTML5 videos",
 			"fox");
 	}

plugins/af_zz_vidmute/init.php

@@ -3,7 +3,7 @@ class Af_Zz_VidMute extends Plugin {
 	private $host;
 
 	function about() {
-		return array(1.0,
+		return array(null,
 			"Mute audio in HTML5 videos",
 			"fox");
 	}

plugins/auth_internal/init.php

@@ -4,7 +4,7 @@ class Auth_Internal extends Auth_Base {
 	private $host;
 
 	function about() {
-		return array(1.0,
+		return array(null,
 			"Authenticates against internal tt-rss database",
 			"fox",
 			true);

plugins/auth_remote/init.php

@@ -4,7 +4,7 @@ class Auth_Remote extends Auth_Base {
 	private $host;
 
 	function about() {
-		return array(1.0,
+		return array(null,
 			"Authenticates against remote password (e.g. supplied by Apache)",
 			"fox",
 			true);

plugins/auto_assign_labels/init.php

@@ -5,7 +5,7 @@ class Auto_Assign_Labels extends Plugin {
 	private $host;
 
 	function about() {
-		return array(1.0,
+		return array(null,
 			"Assign labels automatically based on article title, content, and tags",
 			"fox");
 	}

plugins/bookmarklets/init.php

@@ -3,7 +3,7 @@ class Bookmarklets extends Plugin {
 	private $host;
 
 	function about() {
-		return array(1.0,
+		return array(null,
 			"Easy feed subscription and web page sharing using bookmarklets",
 			"fox",
 			false,

plugins/cache_starred_images/init.php

@@ -8,7 +8,7 @@ class Cache_Starred_Images extends Plugin {
 	private $max_cache_attempts = 5; // per-article
 
 	function about() {
-		return array(1.0,
+		return array(null,
 			"Automatically cache media files in Starred articles",
 			"fox");
 	}

plugins/close_button/init.php

@@ -9,7 +9,7 @@ class Close_Button extends Plugin {
 	}
 
 	function about() {
-		return array(1.0,
+		return array(null,
 			"Adds a button to close article panel",
 			"fox");
 	}

plugins/hotkeys_force_top/init.php

@@ -3,7 +3,7 @@ class Hotkeys_Force_Top extends Plugin {
         private $host;
 
         function about() {
-                return array(1.0,
+                return array(null,
                         "Force open article to the top",
                         "itsamenathan");
         }

plugins/hotkeys_noscroll/init.php

@@ -3,7 +3,7 @@ class Hotkeys_Noscroll extends Plugin {
 	private $host;
 
 	function about() {
-		return array(1.0,
+		return array(null,
 			"n/p (and up/down) hotkeys move between articles without scrolling",
 			"fox");
 	}

plugins/hotkeys_swap_jk/init.php

@@ -4,7 +4,7 @@ class Hotkeys_Swap_JK extends Plugin {
 	private $host;
 
 	function about() {
-		return array(1.0,
+		return array(null,
 			"Swap j and k hotkeys (for vi brethren)",
 			"fox");
 	}

plugins/mail/init.php

@@ -5,7 +5,7 @@ class Mail extends Plugin {
 	private $host;
 
 	function about() {
-		return array(1.0,
+		return array(null,
 			"Share article via email",
 			"fox");
 	}

plugins/mailto/init.php

@@ -3,7 +3,7 @@ class MailTo extends Plugin {
 	private $host;
 
 	function about() {
-		return array(1.0,
+		return array(null,
 			"Share article via email (using mailto: links, invoking your mail client)",
 			"fox");
 	}

plugins/no_iframes/init.php

@@ -3,7 +3,7 @@ class No_Iframes extends Plugin {
 	private $host;
 
 	function about() {
-		return array(1.0,
+		return array(null,
 			"Remove embedded iframes (unless whitelisted)",
 			"fox");
 	}

plugins/no_title_counters/init.php

@@ -3,7 +3,7 @@ class No_Title_Counters extends Plugin {
 	private $host;
 
 	function about() {
-		return array(1.0,
+		return array(null,
 			"Remove counters from window title (prevents tab flashing on new articles)",
 			"fox");
 	}

plugins/no_url_hashes/init.php

@@ -3,7 +3,7 @@ class No_URL_Hashes extends Plugin {
 	private $host;
 
 	function about() {
-		return array(1.0,
+		return array(null,
 			"Disable URL hash usage (e.g. #f=10, etc)",
 			"fox");
 	}

plugins/note/init.php

@@ -5,7 +5,7 @@ class Note extends Plugin {
 	private $host;
 
 	function about() {
-		return array(1.0,
+		return array(null,
 			"Adds support for setting article notes",
 			"fox");
 	}

plugins/nsfw/init.php

@@ -3,7 +3,7 @@ class NSFW extends Plugin {
 	private $host;
 
 	function about() {
-		return array(1.0,
+		return array(null,
 			"Hide article content based on tags",
 			"fox",
 			false);

plugins/scored_oldest_first/init.php

@@ -21,7 +21,7 @@ class Scored_Oldest_First extends Plugin {
 	}
 
 	function about() {
-		return array(1.0,
+		return array(null,
 			"Consider article score while sorting by oldest first",
 			"fox",
 			false,

plugins/share/init.php

@@ -3,7 +3,7 @@ class Share extends Plugin {
 	private $host;
 
 	function about() {
-		return array(1.0,
+		return array(null,
 			"Share article by unique URL",
 			"fox");
 	}

plugins/shorten_expanded/init.php

@@ -3,7 +3,7 @@ class Shorten_Expanded extends Plugin {
 	private $host;
 
 	function about() {
-		return array(1.0,
+		return array(null,
 			"Shorten overly long articles in CDM/expanded",
 			"fox");
 	}

plugins/toggle_sidebar/init.php

@@ -4,7 +4,7 @@ class Toggle_Sidebar extends Plugin {
 	private $host;
 
 	function about() {
-		return array(1.0,
+		return array(null,
 			"Adds a main toolbar button to toggle sidebar",
 			"fox");
 	}

plugins/vf_shared/init.php

@@ -5,7 +5,7 @@ class VF_Shared extends Plugin {
 	private $host;
 
 	function about() {
-		return array(1.0,
+		return array(null,
 			"Feed for all articles actively shared by URL",
 			"fox",
 			false);