Improved cronjob

README.markdown

@@ -67,13 +67,28 @@ FAQ
 
 ### How to update your feeds with a cronjob?
 
-You just need to be inside the directory `miniflux` and run the script `cronjob.php`.
+You just need to be inside the directory `miniflux` and run the script `cronjob.php`. 
 
-By example:
+Prameters          | Type         		             | Value
+-------------------|--------------------------------|-----------------------------
+--limit            | optional                       |time in minutes
+--call-interval    | optional, exclude by --limit, requires --update-interval |time in minutes < update inteval time
+--update-interval  | optional, exclude by --limit, requires --call-interval   |time in minutes >= call interval time
+
+			
+Examples:
 
     crontab -e
 
     0 */4 * * *  cd /path/to/miniflux && php cronjob.php >/dev/null 2>&1
+    
+	# Updates the 10 oldest feeds each time
+
+    0 */4 * * *  cd /path/to/miniflux && php cronjob.php --limit=10 >/dev/null 2>&1
+    
+	# Updates all feeds in 60mn (updates the 8 oldest feeds each time with a total of 120 feeds).
+
+    0 */4 * * *  cd /path/to/miniflux && php cronjob.php --call-interval=4 --update-interval=60 >/dev/null 2>&1
 
 ### How Miniflux update my feeds from the user interface?
 

miniflux/common.php

@@ -10,17 +10,21 @@ require 'schema.php';
 require 'model.php';
 
 
-const DB_VERSION = 4;
-const APP_VERSION = 'master';
+const DB_VERSION    = 5;
+const APP_VERSION   = 'master';
 const APP_USERAGENT = 'Miniflux - http://miniflux.net';
-const HTTP_TIMEOUT = 5;
-
+const HTTP_TIMEOUT  = 5;
+const LIMIT_ALL     = -1;
 
 function get_db_filename()
 {
     return 'data/db.sqlite';
 }
 
+function is_console() 
+{
+    return php_sapi_name() === 'cli';
+}
 
 PicoTools\container('db', function() {
 

miniflux/cronjob.php

@@ -1,5 +1,22 @@
 <?php
-
 require 'common.php';
 
-Model\update_feeds();
+if(is_console()) {
+    $options = getopt('', array(
+        'limit::',
+        'call-interval::',
+        'update-interval::'
+    ));
+
+    $limit           = empty($options['limit'])           ? LIMIT_ALL : (int)$options['limit']; 
+    $update_interval = empty($options['update-interval']) ? null      : (int)$options['update-interval']; 
+    $call_interval   = empty($options['call-interval'])   ? null      : (int)$options['call-interval']; 
+
+    if($update_interval !== null &&  $call_interval !== null && $limit === LIMIT_ALL && $update_interval >= $call_interval) {
+
+        $feeds_count = \PicoTools\singleton('db')->table('feeds')->count();
+        $limit       = ceil($feeds_count / ( $update_interval / $call_interval )) ; // compute new limit
+    } 
+    
+    Model\update_feeds($limit);
+}

miniflux/model.php

@@ -107,10 +107,11 @@ function import_feed($url)
     return false;
 }
 
-
-function update_feeds()
+function update_feeds($limit = LIMIT_ALL)
 {
-    foreach (get_feeds_id() as $feed_id) {
+    $feeds_id = get_feeds_id($limit);
+
+    foreach ($feeds_id as $feed_id) {
 
         update_feed($feed_id);
     }
@@ -134,6 +135,8 @@ function update_feed($feed_id)
         APP_USERAGENT
     );
 
+    update_feed_last_checked($feed_id);
+
     if (! $resource->isModified()) {
 
         return true;
@@ -158,12 +161,18 @@ function update_feed($feed_id)
 }
 
 
-function get_feeds_id()
+function get_feeds_id($limit = LIMIT_ALL)
 {
-    return \PicoTools\singleton('db')
-        ->table('feeds')
-        ->asc('updated')
-        ->listing('id', 'id');
+    $table_feeds = \PicoTools\singleton('db')->table('feeds')
+                                             ->desc('last_checked');
+
+    if($limit !== LIMIT_ALL) {
+
+        $table_feeds->limit((int)$limit);
+    }
+
+    return $table_feeds->listing('id', 'id');
+
 }
 
 
@@ -184,6 +193,14 @@ function get_feed($feed_id)
         ->findOne();
 }
 
+function update_feed_last_checked($feed_id) {
+    \PicoTools\singleton('db')
+        ->table('feeds')
+        ->eq('id', $feed_id)
+        ->save(array(
+            'last_checked'  => time(),
+        ));
+}
 
 function update_feed_cache_infos($feed_id, $last_modified, $etag)
 {
@@ -192,7 +209,8 @@ function update_feed_cache_infos($feed_id, $last_modified, $etag)
         ->eq('id', $feed_id)
         ->save(array(
             'last_modified' => $last_modified,
-            'etag' => $etag
+            'etag'          => $etag,
+            'last_checked'  => time(),
         ));
 }
 

miniflux/schema.php

@@ -2,6 +2,10 @@
 
 namespace Schema;
 
+function version_5($pdo)
+{
+    $pdo->exec('ALTER TABLE feeds ADD COLUMN last_checked INTEGER');
+}
 
 function version_4($pdo)
 {