3 files changed, 21 insertions, 10 deletions

diff --git a/modules/gallery/helpers/gallery.php b/modules/gallery/helpers/gallery.php
index ca8c92c9..3cf0eacd 100644
--- a/modules/gallery/helpers/gallery.php
+++ b/modules/gallery/helpers/gallery.php
@@ -140,4 +140,17 @@ class gallery_Core {
     return $file_name;
   }
 
+  /**
+   * Set the PATH environment variable to the paths specified.
+   * @param  array   Array of paths.  Each array entry can contain a colon separated list of paths.
+   */
+  static function set_path_env($paths) {
+    $path_env = array();
+    foreach ($paths as $path) {
+      if ($path) {
+        array_push($path_env, $path);
+      }
+    }
+    putenv("PATH=" .  implode(":", $path_env));
+  }
 }
\ No newline at end of file
diff --git a/modules/gallery/helpers/graphics.php b/modules/gallery/helpers/graphics.php
index 2868a28d..dd521d84 100644
--- a/modules/gallery/helpers/graphics.php
+++ b/modules/gallery/helpers/graphics.php
@@ -313,11 +313,10 @@ class graphics_Core {
       $toolkits->graphicsmagick->installed = false;
       $toolkits->graphicsmagick->error = t("GraphicsMagick requires the <b>exec</b> function");
     } else {
-      $graphics_path = module::get_var("gallery", "graphics_toolkit_path", null);
-      $extra_binary_paths = module::get_var("gallery", "extra_binary_paths", null);
-
-      putenv("PATH=" . getenv("PATH") . (empty($graphics_path) ? "" : ":$graphics_path") .
-             ":" . $extra_binary_paths);
+      gallery::set_path_env(
+        array(module::get_var("gallery", "graphics_toolkit_path"),
+              getenv("PATH"),
+              module::get_var("gallery", "extra_binary_paths")));
 
       // @todo: consider refactoring the two segments below into a loop since they are so
       // similar.
diff --git a/modules/gallery/helpers/movie.php b/modules/gallery/helpers/movie.php
index 50339541..78358b6b 100644
--- a/modules/gallery/helpers/movie.php
+++ b/modules/gallery/helpers/movie.php
@@ -85,11 +85,10 @@ class movie_Core {
 
   static function find_ffmpeg() {
     if (!($ffmpeg_path = module::get_var("gallery", "ffmpeg_path")) || !file_exists($ffmpeg_path)) {
-      $graphics_path = module::get_var("gallery", "graphics_toolkit_path", null);
-      $extra_binary_paths = module::get_var("gallery", "extra_binary_paths", null);
-
-      putenv("PATH=" . getenv("PATH") . (empty($graphics_path) ? "" : ":$graphics_path") .
-             ":" . $extra_binary_paths);
+      gallery::set_path_env(
+        array(module::get_var("gallery", "graphics_toolkit_path"),
+              getenv("PATH"),
+              module::get_var("gallery", "extra_binary_paths")));
       if (function_exists("exec")) {
         $ffmpeg_path = exec("which ffmpeg");
       }