feat(repo): set origin based on results of vcs-host scaffolding

BREAKING CHANGE: vcs-scaffolding must at least pass back an object for scaffolding results. when a
remote repo is created by the scaffolder, the ssl-url of the created repo should be returned as part
of the results

for travi/github-scaffolder#1

src/vcs/git.js

@@ -1,4 +1,4 @@
-import {Repository as gitRepository} from 'nodegit';
+import {Remote as gitRemote, Repository as gitRepository} from 'nodegit';
 import fs from 'mz/fs';
 import chalk from 'chalk';
 import {promptForVcsHostDetails} from '../prompts/questions';
@@ -10,6 +10,23 @@ function createIgnoreFile(projectRoot, ignore) {
   return fs.writeFile(`${projectRoot}/.gitignore`, `${directories.join('\n')}\n\n${files.join('\n')}`);
 }
 
+function generateConfigFiles(projectRoot, ignore) {
+  console.log(chalk.grey('Generating Git config files'));     // eslint-disable-line no-console
+
+  return Promise.all([
+    fs.writeFile(`${projectRoot}/.gitattributes`, '* text=auto'),
+    ignore ? createIgnoreFile(projectRoot, ignore) : undefined
+  ].filter(Boolean));
+}
+
+async function defineRemoteOrigin(projectRoot, origin) {
+  if (origin.sslUrl) {
+    console.log(chalk.grey(`Setting remote origin to ${origin.sslUrl}`));     // eslint-disable-line no-console
+
+    await gitRemote.create(await gitRepository.open(projectRoot), 'origin', origin.sslUrl);
+  }
+}
+
 export async function initialize(gitRepoShouldBeInitialized, projectRoot, projectName, vcsHosts) {
   if (gitRepoShouldBeInitialized) {
     console.log(chalk.blue('Initializing Git Repository'));     // eslint-disable-line no-console
@@ -25,11 +42,11 @@ export async function initialize(gitRepoShouldBeInitialized, projectRoot, projec
   return {};
 }
 
-export function scaffold({projectRoot, ignore}) {
-  console.log(chalk.blue('Generating Git Configuration'));     // eslint-disable-line no-console
+export async function scaffold({projectRoot, ignore, origin}) {
+  console.log(chalk.blue('Finishing Git Configuration'));     // eslint-disable-line no-console
 
   return Promise.all([
-    fs.writeFile(`${projectRoot}/.gitattributes`, '* text=auto'),
-    ignore ? createIgnoreFile(projectRoot, ignore) : undefined
-  ].filter(Boolean));
+    generateConfigFiles(projectRoot, ignore),
+    defineRemoteOrigin(projectRoot, origin)
+  ]);
 }

test/unit/vcs/git-test.js

@@ -1,4 +1,4 @@
-import {Repository as gitRepository} from 'nodegit';
+import {Remote as gitRemote, Repository as gitRepository} from 'nodegit';
 import fs from 'mz/fs';
 import any from '@travi/any';
 import sinon from 'sinon';
@@ -16,6 +16,8 @@ suite('scaffold git', () => {
 
     sandbox.stub(fs, 'writeFile');
     sandbox.stub(gitRepository, 'init');
+    sandbox.stub(gitRepository, 'open');
+    sandbox.stub(gitRemote, 'create');
     sandbox.stub(prompts, 'promptForVcsHostDetails');
 
     gitRepository.init.resolves();
@@ -59,9 +61,10 @@ suite('scaffold git', () => {
     test('that the git repo is initialized', () => {
       fs.writeFile.resolves();
 
-      return scaffold({projectRoot}).then(() => {
+      return scaffold({projectRoot, origin: {}}).then(() => {
         assert.calledWith(fs.writeFile, `${projectRoot}/.gitattributes`, '* text=auto');
         assert.neverCalledWith(fs.writeFile, `${projectRoot}/.gitignore`);
+        assert.notCalled(gitRemote.create);
       });
     });
 
@@ -70,11 +73,22 @@ suite('scaffold git', () => {
       const files = any.listOf(any.string);
       fs.writeFile.resolves();
 
-      return scaffold({projectRoot, ignore: {directories, files}}).then(() => assert.calledWith(
+      return scaffold({projectRoot, ignore: {directories, files}, origin: {}}).then(() => assert.calledWith(
         fs.writeFile,
         `${projectRoot}/.gitignore`,
         `${directories.join('\n')}\n\n${files.join('\n')}`
       ));
     });
+
+    test('that the remote origin is defined when an ssl-url is provided for the remote', async () => {
+      const repository = any.simpleObject();
+      const sslUrl = any.url();
+      gitRepository.open.withArgs(projectRoot).resolves(repository);
+      gitRemote.create.resolves();
+
+      await scaffold({projectRoot, origin: {sslUrl}});
+
+      assert.calledWith(gitRemote.create, repository, 'origin', sslUrl);
+    });
   });
 });