API Add experimental getResource() to Module

src/Core/Manifest/Module.php

@@ -4,6 +4,7 @@ namespace SilverStripe\Core\Manifest;
 
 use Exception;
 use Serializable;
+use SilverStripe\Assets\File;
 
 class Module implements Serializable
 {
@@ -148,4 +149,33 @@ class Module implements Serializable
             $this->composerData = $result;
         }
     }
+
+    /**
+     * Gets path to physical file resource relative to base directory.
+     * Directories included
+     *
+     * This method makes no distinction between public / local resources,
+     * which may change in the near future.
+     *
+     * @internal Experimental API and may change
+     * @param string $path File or directory path relative to module directory
+     * @return string Path relative to base directory
+     */
+    public function getResource($path)
+    {
+        return File::join_paths($this->getRelativePath(), $path);
+    }
+
+    /**
+     * Check if this module has a given resource
+     *
+     * @internal Experimental API and may change
+     * @param string $path
+     * @return bool
+     */
+    public function hasResource($path)
+    {
+        $resource = $this->getResource($path);
+        return file_exists($this->basePath . '/' . $resource);
+    }
 }

src/Core/Manifest/ModuleLoader.php

@@ -25,6 +25,18 @@ class ModuleLoader
         return self::$instance ? self::$instance : self::$instance = new self();
     }
 
+    /**
+     * Get module by name from the current manifest.
+     * Alias for ::instance()->getManifest()->getModule()
+     *
+     * @param string $module
+     * @return Module
+     */
+    public static function getModule($module)
+    {
+        return static::instance()->getManifest()->getModule($module);
+    }
+
     /**
      * Returns the currently active class manifest instance that is used for
      * loading classes.

tests/php/Core/Manifest/ModuleManifestTest.php

@@ -69,4 +69,19 @@ class ModuleManifestTest extends SapphireTest
         $this->assertEquals('moduleb', $module->getShortName());
         $this->assertEquals('moduleb', $module->getRelativePath());
     }
+
+    /*
+     * Note: Tests experimental API
+     * @internal
+     */
+    public function testGetResource()
+    {
+        $module = $this->manifest->getModule('moduleb');
+        $this->assertTrue($module->hasResource('composer.json'));
+        $this->assertFalse($module->hasResource('package.json'));
+        $this->assertEquals(
+            'moduleb/composer.json',
+            $module->getResource('composer.json')
+        );
+    }
 }