prod dependencies

Author: Robin Bilgil

__tests__/main.test.ts

@@ -1,29 +1,5 @@
-import {wait} from '../src/wait'
-import * as process from 'process'
-import * as cp from 'child_process'
-import * as path from 'path'
-import {expect, test} from '@jest/globals'
+import { expect, test } from '@jest/globals'
 
-test('throws invalid number', async () => {
-  const input = parseInt('foo', 10)
-  await expect(wait(input)).rejects.toThrow('milliseconds not a number')
-})
-
-test('wait 500 ms', async () => {
-  const start = new Date()
-  await wait(500)
-  const end = new Date()
-  var delta = Math.abs(end.getTime() - start.getTime())
-  expect(delta).toBeGreaterThan(450)
-})
-
-// shows how the runner will run a javascript action with env / stdout protocol
-test('test runs', () => {
-  process.env['INPUT_MILLISECONDS'] = '500'
-  const np = process.execPath
-  const ip = path.join(__dirname, '..', 'lib', 'main.js')
-  const options: cp.ExecFileSyncOptions = {
-    env: process.env
-  }
-  console.log(cp.execFileSync(np, [ip], options).toString())
-})
+test('No test implemented', () => {
+  expect('tests').not.toBe('implemented')
+})

action.yml

@@ -1,11 +1,27 @@
-name: 'Your name here'
-description: 'Provide a description here'
-author: 'Your name or organization here'
+name: 'Turbo Changed Packages'
+description: 'A Github Action to return the changed packages from a Turborepo project'
+author: 'Packfleet'
+branding:
+  icon: git-branch
+  color: green
 inputs:
-  milliseconds: # change this
+  prefix:
+    required: false
+    description: 'Prefix to filter the packages'
+  from:
     required: true
-    description: 'input description here'
-    default: 'default value if applicable'
+    description: 'Start of the commit range to check (can be a commit hash or a branch name).'
+  to:
+    required: false
+    description: 'End of the commit range to check (can be a commit hash or branch). If not provided, will be the current commit of the head branch on a `pull_request` event. For a push event, it will be the current commit of the current branch.'
+  working-directory:
+    required: false
+    description: 'Path to the root of the turborepo project.'
+    default: './'
+outputs:
+  changed:
+    description: 'True if the workspace changed, otherwise false.'
+
 runs:
   using: 'node16'
-  main: 'dist/index.js'
+  main: 'dist/index.js'

src/main.ts

@@ -1,19 +1,38 @@
-import * as core from '@actions/core'
-import {wait} from './wait'
+import { execSync } from 'child_process'
+import { join } from 'path'
+import { getInput, debug, setFailed, setOutput } from '@actions/core'
 
-async function run(): Promise<void> {
+const run = async (): Promise<void> => {
   try {
-    const ms: string = core.getInput('milliseconds')
-    core.debug(`Waiting ${ms} milliseconds ...`) // debug is only output if you set the secret `ACTIONS_STEP_DEBUG` to true
+    // Get Inputs
+    const prefix = getInput('prefix', { required: false })
+    const from = getInput('from', { required: true })
+    const to = getInput('to', { required: true })
+    const workingDirectory = getInput('working-directory', { required: true })
 
-    core.debug(new Date().toTimeString())
-    await wait(parseInt(ms, 10))
-    core.debug(new Date().toTimeString())
+    debug(`Inputs: ${JSON.stringify({ prefix, from, to, workingDirectory })}`)
 
-    core.setOutput('time', new Date().toTimeString())
+    const json = execSync(
+      `npx turbo run build --filter="[${from}...${to}]" --dry-run=json`,
+      {
+        cwd: join(process.cwd(), workingDirectory),
+        encoding: 'utf-8',
+      },
+    )
+
+    debug(`Output from Turborepo: ${json}`)
+
+    const parsedOutput = JSON.parse(json)
+    const changedPackages = parsedOutput.packages.filter((p: string) => !prefix || p.startsWith(prefix));
+
+    setOutput('changed', changedPackages)
   } catch (error) {
-    if (error instanceof Error) core.setFailed(error.message)
+    if (error instanceof Error || typeof error === 'string') {
+      setFailed(error)
+    } else {
+      setFailed('Unknown error occured.')
+    }
   }
 }
 
-run()
+void run()