New: option shorthand on installDependencies method (#1015)

lib/actions/install.js

@@ -82,10 +82,16 @@ install.runInstall = function (installer, paths, options, spawnOptions) {
  *   npm: true
  * }).then(() => console.log('Everything is ready!'));
  *
+ * @example
+ * this.installDependencies({
+ *   yarn: {force: true},
+ *   npm: false
+ * }).then(() => console.log('Everything is ready!'));
+ *
  * @param {Object} [options]
- * @param {Boolean} [options.npm=true] - whether to run `npm install`
- * @param {Boolean} [options.bower=true] - whether to run `bower install`
- * @param {Boolean} [options.yarn=false] - whether to run `yarn install`
+ * @param {Boolean|Object} [options.npm=true] - whether to run `npm install` or can be options to pass to `dargs` as arguments
+ * @param {Boolean|Object} [options.bower=true] - whether to run `bower install` or can be options to pass to `dargs` as arguments
+ * @param {Boolean|Object} [options.yarn=false] - whether to run `yarn install` or can be options to pass to `dargs` as arguments
  * @param {Boolean} [options.skipMessage=false] - whether to log the used commands
  * @return {Promise} Resolved once done, rejected if errors
  */
@@ -100,20 +106,24 @@ install.installDependencies = function (options) {
     '<% if (!skipInstall) { %> If this fails, try running the command yourself.<% } %>\n\n')
   };
 
+  const getOptions = options => {
+    return typeof options === 'object' ? options : null;
+  };
+
   if (options.npm !== false) {
     msg.commands.push('npm install');
     commands.push(cb => {
-      this.npmInstall(null, null).then(
+      this.npmInstall(null, getOptions(options.npm)).then(
         val => cb(null, val),
         cb
       );
     });
   }
 
-  if (options.yarn === true) {
+  if (options.yarn) {
     msg.commands.push('yarn install');
     commands.push(cb => {
-      this.yarnInstall(null, null).then(
+      this.yarnInstall(null, getOptions(options.yarn)).then(
         val => cb(null, val),
         cb
       );
@@ -123,7 +133,7 @@ install.installDependencies = function (options) {
   if (options.bower !== false) {
     msg.commands.push('bower install');
     commands.push(cb => {
-      this.bowerInstall(null, null).then(
+      this.bowerInstall(null, getOptions(options.bower)).then(
         val => cb(null, val),
         cb
       );

test/install.js

@@ -191,5 +191,15 @@ describe('Base (actions/install mixin)', () => {
       this.dummy.run();
       return promise;
     });
+
+    it('spawn yarn and bower with options', function () {
+      const promise = this.dummy.installDependencies({yarn: {force: true}, bower: {depth: 0}, npm: false}).then(() => {
+        sinon.assert.calledTwice(this.spawnCommandStub);
+        sinon.assert.calledWithExactly(this.spawnCommandStub, 'bower', ['install', '--depth=0'], {});
+        sinon.assert.calledWithExactly(this.spawnCommandStub, 'yarn', ['install', '--force'], {});
+      });
+      this.dummy.run();
+      return promise;
+    });
   });
 });