added caching to improve report speed

1 files changed, 85 insertions, 0 deletions

diff --git a/en/about/license/license.php b/en/about/license/license.php
index 5745e0826..7ae6d1cd7 100644
--- a/en/about/license/license.php
+++ b/en/about/license/license.php
@@ -53,3 +53,88 @@ function read_license_from_vcs($locale) {
 
     return $prepared_license_strings;
 }
+
+function load_license_numbers($lang, $skip_rebuilding_cache = false)
+{
+    $pot_filename  = 'libDrakX.pot';
+    $po_files_path = "http://gitweb.mageia.org/software/drakx/plain/perl-install/share/po/";
+    $cache_file    = __DIR__ . '/../../../_nav/var/tmp/cache/license_numbers_' . $lang . '.php';
+    $rebuild_cache = false;
+    date_default_timezone_set(@date_default_timezone_get());
+    if($lang == 'en') {
+        $filename = $pot_filename;
+        $start_text = '"POT-Creation-Date:';
+    } else {
+        $filename   = locale_hyphen_underscore($lang, true) . '.po'; // create pt_BR.po from pt-br and alike
+        $start_text = '"PO-Revision-Date:';
+    }
+    if(!$skip_rebuilding_cache) {
+        $po_file      = $po_files_path . $filename;
+        $filehandle = @fopen($po_file, 'r'); // read $po_file
+        if($filehandle !== false) { // could open $po_fil
+            fclose($filehandle);
+            $po_time = get_po_time($po_file, $start_text);
+        } else {
+            $po_time = get_po_time($po_files_path . $pot_filename, $start_text);
+            if(!$po_time) { $po_time = 0; } // fallback
+        }
+        if(file_exists($cache_file)) {
+            include $cache_file;
+            if($cached_time < $po_time) {
+                $rebuild_cache = true;
+            }
+        } else {
+            $rebuild_cache = true;
+        }
+        if($rebuild_cache) {
+            $license_array   = read_license_from_vcs($lang);
+            $license_numbers = array_pop($license_array);
+            $license_num_all = $license_numbers["all"];
+            $license_num_unt = $license_numbers["untran"];
+            $cache_content   = <<<P
+<?php
+/**! Generated. Do not edit. */
+
+// Date in $po_file
+\$cached_time = $po_time;
+
+// $lang license numbers
+\$license_num_all = $license_num_all;
+\$license_num_unt = $license_num_unt;
+
+P;
+            file_put_contents($cache_file, $cache_content);
+        }
+    } else {
+        if(file_exists($cache_file)) {
+            include $cache_file;
+        } else { // fallback
+            $license_num_all = 0;
+            $license_num_unt = 0;
+        }
+    }
+
+    $return_license_numbers["all"]    = $license_num_all;
+    $return_license_numbers["untran"] = $license_num_unt;
+    return $return_license_numbers;
+}
+
+function get_po_time($po_file, $start_text)
+{
+    $filehandle = @fopen($po_file, 'r'); // read $po_file
+    if($filehandle === false) { // still could not open $po_file
+        return 0; // fallback
+    }
+
+    while(($line = fgets($filehandle, 50)) !== false) { // check first 50 characters
+        $line = trim($line);
+        if(substr_count($line, $start_text) == 1) { // if $start_text is present
+            $line = trim(str_replace(array($start_text, '\n"'), '', $line));
+            $po_time = strtotime($line);
+            fclose($filehandle);
+            return $po_time;
+        }
+    }
+    fclose($filehandle);
+    return 0; // fallback
+}