GDT-330 : Make sure we only try to symlink the config directory if on…

…e exists at 'src/config'

 * Adding documentation to  10_BUILD.md in reference to the config directory.
 * Updating the test (build.js) to use fs.existsSync for my test
 * Reorder task/definition, Rewrite the test for the config directories

.gitignore

@@ -1,3 +1,4 @@
+.idea
 /node_modules
 /test/working_copy
 /build

docs/10_BUILD.md

@@ -70,6 +70,11 @@ package.json
 phpmd.xml
 ```
 
+If you are using Config Management in Drupal 8 you will want to place a
+`src/config` directory in your codebase. Scaffolding (scaffold.js) will not
+create a symlink to `build/html/config` if it does not exist. Please see the
+`example/src/config` directory.
+
 ### Setting up Source Code
 
 - Place custom modules in **src/modules/**. When the project is built, the

lib/drupal.js

@@ -1,4 +1,5 @@
 var path = require('path');
+var fs = require('fs');
 
 module.exports = function(grunt) {
   var module = {};
@@ -51,6 +52,12 @@ module.exports = function(grunt) {
     return path.join(grunt.config('config.buildPaths.html'), 'profiles');
   };
 
+  // Confirms that a project has a `src/config` directory.
+  module.sourceConfigExists = function() {
+    var directoryPath = path.join(grunt.config('config.srcPaths.drupal'), 'config');
+    return fs.existsSync(directoryPath);
+  };
+
   module.configPath = function() {
     return path.join(grunt.config('config.buildPaths.html'), 'config');
   };

tasks/scaffold.js

@@ -23,17 +23,22 @@ module.exports = function(grunt) {
 
         grunt.loadNpmTasks('grunt-contrib-symlink');
 
+        var createConfig = drupal.sourceConfigExists();
+
+        // Creates directories needed for the build.
         grunt.config.set('mkdir.drupal', {
           options: {
             create: [
               drupal.libraryPath(),
               drupal.modulePath(),
-              drupal.profilePath(),
-              drupal.configPath()
+              drupal.profilePath()
             ]
           }
         });
 
+        /**
+         * Symlink directories from 'src' to 'build/html'.
+         */
         grunt.config(['symlink', 'libraries'], {
           expand: true,
           cwd: '<%= config.srcPaths.drupal %>/libraries',
@@ -51,10 +56,6 @@ module.exports = function(grunt) {
           dest: drupal.profilePath(),
           filter: 'isDirectory'
         });
-        grunt.config(['symlink', 'config'], {
-          src: '<%= config.srcPaths.drupal %>/config',
-          dest: drupal.configPath()
-        });
         grunt.config(['symlink', 'sites'], {
           expand: true,
           cwd: '<%= config.srcPaths.drupal %>/sites',
@@ -69,7 +70,7 @@ module.exports = function(grunt) {
           dest: path.join(drupal.themePath(), 'custom')
         });
 
-        grunt.task.run([
+        var tasks = [
           'mkdir:drupal',
           'symlink:profiles',
           'symlink:libraries',
@@ -80,7 +81,18 @@ module.exports = function(grunt) {
           'symlink:sites',
           'mkdir:files',
           'copy:static'
-        ]);
+        ];
+
+        // We symlink the config directory if one exists.
+        if (createConfig) {
+          grunt.config(['symlink', 'config'], {
+            src: '<%= config.srcPaths.drupal %>/config',
+            dest: drupal.configPath()
+          });
+          tasks.push('symlink:config');
+        }
+
+        grunt.task.run(tasks);
 
         done();
       });

test/build.js

@@ -139,6 +139,22 @@ describe('grunt', function() {
         done();
       });
     });
+
+    // Ensure the build/html/config directory exists if it should.
+    it('config directory should exist if provided ', function(done) {
+      var src = fs.existsSync('src/config');
+      var html = fs.existsSync('build/html/config');
+      if (src && html) {
+        assert.ok(true, 'Both src/config and build/html/config exist');
+        done();
+      } else if (src && !html) {
+        assert.ok(false, 'Error: src/config exists but build/html/config does not');
+        done();
+      } else if (html && !src) {
+        assert.ok(false, 'Error: build/html/config exists but src/config does not');
+        done();
+      }
+    });
   });
 
   describe('Script dispatching', function() {