feat: --init option to generate a default application

app/index.js

@@ -42,6 +42,12 @@ module.exports = Generator.extend({
       type: String
     })
 
+    this.option('init', {
+      type: Boolean,
+      desc: 'Generate basic default scaffold without prompting user for input.',
+      defaults: false
+    })
+
     this.option('skip-build', {
       type: Boolean,
       desc: 'Skip building the generated application',
@@ -59,7 +65,19 @@ module.exports = Generator.extend({
     ensureNotInProject: actions.ensureNotInProject,
 
     initSpec: function () {
-      if (this.options.spec) {
+      if (this.options.init) {
+        // User passed the --init flag, so no prompts, just generate basic default scaffold
+        this.destinationSet = true
+        this.skipPrompting = true
+        this.appPattern = 'Basic'
+        this.spec = {
+          appType: 'scaffold',
+          appName: this.appname,
+          docker: true,
+          metrics: true,
+          services: {}
+        }
+      } else if (this.options.spec) {
         try {
           this.spec = JSON.parse(this.options.spec)
           this.skipPrompting = true
@@ -72,6 +90,9 @@ module.exports = Generator.extend({
     initAppName: function () {
       if (this.skipPrompting) return
 
+      // save the initial directory for use by the fromSwagger processing.
+      this.initialWorkingDir = process.cwd()
+
       this.appname = null // Discard yeoman default appname
       this.skipPromptingAppName = false
       if (this.options.name) {
@@ -90,9 +111,6 @@ module.exports = Generator.extend({
         }
       }
 
-      // save the initial directory for use by the fromSwagger processing.
-      this.initialWorkingDir = process.cwd()
-
       if (this.appname === null) {
         // Fall back to name of current working directory
         // Normalize if it contains special characters
@@ -146,7 +164,6 @@ module.exports = Generator.extend({
       if (this.appname === path.basename(this.destinationRoot())) {
         // When the project name is the same as the current directory,
         // we are assuming the user has already created the project dir
-        this.log('working directory is %s', path.basename(this.destinationRoot()))
         this.destinationSet = true
         return
       }

test/integration/app/prompted_nobuild.js

@@ -1235,6 +1235,29 @@ describe('Integration tests (prompt no build) for swiftserver:app', function ()
       commonTest.itCreatedMetricsFilesWithExpectedContent()
       commonTest.autoscaling.itCreatedServiceFilesWithExpectedContent('myAutoscalingService')
     })
+
+    describe('with --init flag set', function () {
+      var runContext
+      var appName = 'fishcakes'
+
+      before(function () {
+        runContext = helpers.run(appGeneratorPath)
+                            .withOptions({ skipBuild: true, init: true })
+                            .inTmpDir(function (tmpDir) {
+                              this.inDir(path.join(tmpDir, appName))
+                            })
+
+        return runContext.toPromise()
+      })
+
+      after(function () {
+        runContext.cleanTestDirectory()
+      })
+
+      commonTest.itCreatedCommonFiles(appName)
+      commonTest.itCreatedMetricsFilesWithExpectedContent()
+      commonTest.itCreatedDockerFilesWithExpectedContent(appName)
+    })
   })
 
   describe('crud', function () {

test/unit/app.js

@@ -482,6 +482,33 @@ describe('Unit tests for swiftserver:app', function () {
     }))
   })
 
+  describe('--init flag specified', function () {
+    var runContext
+    var appName
+
+    before(function () {
+      runContext = helpers.run(appGeneratorPath)
+                          .withGenerators(dependentGenerators) // Stub subgenerators
+                          .withOptions({ testmode: true, init: true })     // Workaround to stub subgenerators
+                          .inTmpDir(function (tmpDir) {
+                            appName = path.basename(tmpDir)
+                          })
+      return runContext.toPromise()
+    })
+
+    after(function () {
+      runContext.cleanTestDirectory()
+    })
+
+    itCreatedSpecWithServicesAndCapabilities(() => ({
+      runContext: runContext,
+      appType: 'scaffold',
+      appName: appName,
+      capabilities: [ 'docker', 'metrics' ],
+      services: {}
+    }))
+  })
+
   describe('spec option', function () {
     describe('valid', function () {
       var runContext