feat: "after" task to optionally install deps

Author: 3cp

after.js

@@ -0,0 +1,38 @@
+const which = require('npm-which')(process.cwd());
+
+function isAvailable(bin) {
+  try {
+    return which.sync(bin);
+  } catch (e) {
+    return false;
+  }
+}
+
+module.exports = async function({
+  unattended, prompts, run
+}) {
+  if (unattended) return;
+
+  const choices = [
+    {value: 'npm i', title: 'Yes, use npm'}
+  ];
+
+  if (isAvailable('yarn')) {
+    choices.unshift({value: 'yarn', title: 'Yes, use yarn'});
+  }
+
+  if (isAvailable('pnpm')) {
+    choices.unshift({value: 'pnpm i', title: 'Yes, use pnpm'});
+  }
+
+  choices.unshift({title: 'No'});
+
+  const result = await prompts.select({
+    message: 'Do you want to install dependencies?',
+    choices
+  });
+
+  if (result) {
+    await run(result);
+  }
+};

package.json

@@ -14,5 +14,8 @@
     "del": "^4.1.0",
     "puppeteer": "^1.15.0",
     "standard-changelog": "^2.0.7"
+  },
+  "dependencies": {
+    "npm-which": "^3.0.1"
   }
 }