update async functions

ts/npmci.test.ts

@@ -1,49 +1,32 @@
 import * as plugins from './npmci.plugins'
-import {bash} from './npmci.bash'
-import {install} from './npmci.install'
+import { bash } from './npmci.bash'
+import { install } from './npmci.install'
 import * as env from './npmci.env'
 import * as NpmciBuildDocker from './npmci.build.docker'
 
-export let test = (versionArg) => {
-    let done = plugins.q.defer()
-    if (versionArg === 'docker') {
-        testDocker()
-            .then(() => {
-                done.resolve()
-            })
-    } else {
-        install(versionArg)
-            .then(npmDependencies)
-            .then(npmTest)
-            .then(() => {
-                done.resolve()
-            })
-    }
-    return done.promise
+export let test = async (versionArg): Promise<void> => {
+  if (versionArg === 'docker') {
+    await testDocker()
+  } else {
+    await install(versionArg)
+      .then(npmDependencies)
+      .then(npmTest)
+  }
 }
 
-let npmDependencies = function(){
-    let done = plugins.q.defer()
-    plugins.beautylog.info('now installing dependencies:')
-    bash('npm install')
-    done.resolve()
-    return done.promise
+let npmDependencies = async () => {
+  plugins.beautylog.info('now installing dependencies:')
+  await bash('npm install')
 }
 
-let npmTest = () => {
-    let done = plugins.q.defer()
-    plugins.beautylog.info('now starting tests:')
-    bash('npm test')
-    done.resolve()
-    return done.promise
+let npmTest = async () => {
+  plugins.beautylog.info('now starting tests:')
+  await bash('npm test')
 }
 
-let testDocker = function(){
-    let done = plugins.q.defer()
-    NpmciBuildDocker.readDockerfiles()
-        .then(NpmciBuildDocker.pullDockerfileImages)
-        .then(NpmciBuildDocker.testDockerfiles)
-        .then(done.resolve)
-    return done.promise
+let testDocker = async (): Promise<NpmciBuildDocker.Dockerfile[]> => {
+  return await NpmciBuildDocker.readDockerfiles()
+    .then(NpmciBuildDocker.pullDockerfileImages)
+    .then(NpmciBuildDocker.testDockerfiles)
 }