From 16cd1eca7e4f57d6f4d40e993775a7be58849deb Mon Sep 17 00:00:00 2001
From: Tim Otten <totten@civicrm.org>
Date: Thu, 15 Jan 2015 18:33:30 -0800
Subject: [PATCH] CRM-15832 - CRM_Core_Resources - Add glob() function

---
 CRM/Core/Resources.php                   | 41 ++++++++++++++++++++++--
 tests/phpunit/CRM/Core/ResourcesTest.php | 17 ++++++++++
 2 files changed, 56 insertions(+), 2 deletions(-)

diff --git a/CRM/Core/Resources.php b/CRM/Core/Resources.php
index 61c7095345..9e97ed0321 100644
--- a/CRM/Core/Resources.php
+++ b/CRM/Core/Resources.php
@@ -443,14 +443,17 @@ class CRM_Core_Resources {
    *
    * @param string $ext
    *   extension name; use 'civicrm' for core.
-   * @param string $file
+   * @param string|NULL $file
    *   file path -- relative to the extension base dir.
    *
    * @return bool|string
    *   full file path or FALSE if not found
    */
-  public function getPath($ext, $file) {
+  public function getPath($ext, $file = NULL) {
     // TODO consider caching results
+    if ($file === NULL) {
+      return $this->extMapper->keyToBasePath($ext);
+    }
     $path = $this->extMapper->keyToBasePath($ext) . '/' . $file;
     if (is_file($path)) {
       return $path;
@@ -480,6 +483,40 @@ class CRM_Core_Resources {
     return $this->extMapper->keyToUrl($ext) . '/' . $file;
   }
 
+  /**
+   * Evaluate a glob pattern in the context of a particular extension.
+   *
+   * @param string $ext
+   *   Extension name; use 'civicrm' for core.
+   * @param string|array $patterns
+   *   Glob pattern; e.g. "*.html".
+   * @param null|int $flags
+   *   See glob().
+   * @return array
+   *   List of matching files, relative to the extension base dir.
+   * @see glob()
+   */
+  public function glob($ext, $patterns, $flags = NULL) {
+    $path = $this->getPath($ext);
+    $patterns = (array) $patterns;
+    $files = array();
+    foreach ($patterns as $pattern) {
+      if ($pattern{0} === '/') {
+        // Absolute path.
+        $files = array_merge($files, (array) glob($pattern, $flags));
+      }
+      else {
+        // Relative path.
+        $files = array_merge($files, (array) glob("$path/$pattern", $flags));
+      }
+    }
+    sort($files); // Deterministic order.
+    $files = array_unique($files);
+    return array_map(function ($file) use ($path) {
+      return CRM_Utils_File::relativize($file, "$path/");
+    }, $files);
+  }
+
   /**
    * @return string
    */
diff --git a/tests/phpunit/CRM/Core/ResourcesTest.php b/tests/phpunit/CRM/Core/ResourcesTest.php
index 397a24be54..f91b84a034 100644
--- a/tests/phpunit/CRM/Core/ResourcesTest.php
+++ b/tests/phpunit/CRM/Core/ResourcesTest.php
@@ -281,6 +281,21 @@ class CRM_Core_ResourcesTest extends CiviUnitTestCase {
     $this->assertEquals('http://ext-dir/com.example.ext/', $actual);
   }
 
+  public function testGlob() {
+    $this->assertEquals(
+      array('info.xml'),
+      $this->res->glob('com.example.ext', 'info.xml')
+    );
+    $this->assertEquals(
+      array('js/example.js'),
+      $this->res->glob('com.example.ext', 'js/*.js')
+    );
+    $this->assertEquals(
+      array('js/example.js'),
+      $this->res->glob('com.example.ext', array('js/*.js'))
+    );
+  }
+
   /**
    * @param CRM_Utils_Cache_Interface $cache
    * @param string $cacheKey
@@ -291,7 +306,9 @@ class CRM_Core_ResourcesTest extends CiviUnitTestCase {
   public function _createMapper(CRM_Utils_Cache_Interface $cache = NULL, $cacheKey = NULL) {
     $basedir = rtrim($this->createTempDir('ext-'), '/');
     mkdir("$basedir/com.example.ext");
+    mkdir("$basedir/com.example.ext/js");
     file_put_contents("$basedir/com.example.ext/info.xml", "<extension key='com.example.ext' type='report'><file>oddball</file></extension>");
+    file_put_contents("$basedir/com.example.ext/js/example.js", "alert('Boo!');");
     // not needed for now // file_put_contents("$basedir/weird/bar/oddball.php", "<?php\n");
     $c = new CRM_Extension_Container_Basic($basedir, 'http://ext-dir', $cache, $cacheKey);
     $mapper = new CRM_Extension_Mapper($c, NULL, NULL, '/pathto/civicrm', 'http://core-app');
-- 
2.25.1