ci: configure build matrix (#26)

* ci: configure build matrix

* build: use execa

Author: jamesgeorge007

.github/workflows/ci.yml

@@ -3,16 +3,17 @@ name: CI
 on: [push, pull_request]
 
 jobs:
-  build:
-    name: e2e tests
-
-    runs-on: ubuntu-latest
-
+  job:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: ['ubuntu-latest', 'macos-latest', 'windows-latest']
+        node: ['12', '14', '15']
     steps:
       - uses: actions/checkout@v2
-      - name: Use Node.js 12.x
+      - name: Setup node
         uses: actions/setup-node@v1
         with:
-          node-version: 12
+          node-version: ${{ matrix.node }}
       - run: yarn install --frozen-lockfile
       - run: yarn test

gulpfile.js

@@ -1,17 +1,14 @@
 const del = require('del');
+const execa = require('execa');
 const gulp = require('gulp');
-const { spawn } = require('child_process');
 
 gulp.task('clean', () => {
   return del('./lib/*', { force: true });
 });
 
-gulp.task('typescript', cb => {
-  const cmd = spawn('tsc', { stdio: 'inherit' });
-  cmd.on('close', code => {
-    console.log(`The process exited with code ${code}`);
-    cb(code);
-  });
+gulp.task('typescript', async () => {
+  const { exitCode } = await execa('tsc', { stdio: 'inherit' });
+  console.log(`The process exited with code ${exitCode}`);
 });
 
 gulp.task('copy', () => {