Adds command to list available templates

Author: philnash

package.json

@@ -34,6 +34,7 @@
     "inquirer": "^6.2.2",
     "ora": "^3.2.0",
     "pkg-install": "^1.0.0",
+    "twilio-run": "^2.0.0-beta.12",
     "yargs": "^12.0.5"
   },
   "engines": {

src/cli.js

@@ -1,5 +1,6 @@
 const yargs = require('yargs');
 const { handler, describe, cliInfo } = require('./command');
+const listTemplates = require('./commands/list-templates');
 
 function cli(cwd) {
   yargs.help();
@@ -22,6 +23,11 @@ function cli(cwd) {
     },
     argv => handler(argv)
   );
+  yargs.command({
+    command: 'list-templates',
+    desc: 'List the available templates you can create a project with.',
+    handler: argv => listTemplates(argv)
+  });
 
   return yargs;
 }

src/commands/list-templates.js

@@ -0,0 +1,26 @@
+const { fetchListOfTemplates } = require('twilio-run/dist/templating/actions');
+const ora = require('ora');
+const chalk = require('chalk');
+
+const listTemplates = async function() {
+  const spinner = ora();
+  spinner.start('Fetching available templates');
+
+  try {
+    const templates = await fetchListOfTemplates();
+    spinner.stop();
+    templates.forEach(template =>
+      console.log(
+        chalk`‣ ${template.name} ({cyan ${template.id}})\n  {dim ${
+          template.description
+        }}`
+      )
+    );
+  } catch (err) {
+    spinner.fail('Could not retrieve templates');
+    process.exit(1);
+    return;
+  }
+};
+
+module.exports = listTemplates;

tests/list-templates.test.js

@@ -0,0 +1,31 @@
+const templateActions = require('twilio-run/dist/templating/actions');
+const listTemplates = require('../src/commands/list-templates');
+
+jest.mock('twilio-run/dist/templating/actions');
+
+describe('listTemplates', () => {
+  it('gets templates from twilio-run and displays them', async () => {
+    const consoleSpy = jest
+      .spyOn(global.console, 'log')
+      .mockImplementation(() => {});
+    const template = {
+      name: 'Test template',
+      id: 'test-template',
+      description: 'A template to test with'
+    };
+    templateActions.fetchListOfTemplates.mockResolvedValue([template]);
+
+    await listTemplates();
+
+    expect(consoleSpy).toHaveBeenCalledTimes(1);
+    expect(consoleSpy).toHaveBeenCalledWith(
+      expect.stringContaining(template.name)
+    );
+    expect(consoleSpy).toHaveBeenCalledWith(
+      expect.stringContaining(template.id)
+    );
+    expect(consoleSpy).toHaveBeenCalledWith(
+      expect.stringContaining(template.description)
+    );
+  });
+});