Improve the init fn

CHANGELOG.md

@@ -17,6 +17,12 @@
 <!-- Your comment below this -->
 <!-- Your comment above this -->
 
+
+## 12.1.0
+
+It's been 7 years since I looked at `danger init` and err, the world of CI has changed quite a bit since then. So, Danger JS's
+`init` command now knows that GitHub Actions exists and will correctly offer some advice on how to set up a Dangerfile for it. - [@orta]
+
 ## 12.0.0
 
 Bumping to 12.x because we've raised the minimum to node version from 14 to 18. This is due to some of our dependencies

source/commands/danger-init.ts

@@ -6,7 +6,7 @@ import program from "commander"
 import * as fs from "fs"
 
 import { generateDefaultDangerfile } from "./init/default-dangerfile"
-import { travis, circle, unsure } from "./init/add-to-ci"
+import { travis, circle, unsure, githubActions } from "./init/add-to-ci"
 import { generateInitialState, createUI } from "./init/state-setup"
 import { InitUI, InitState, highlight } from "./init/interfaces"
 
@@ -42,9 +42,14 @@ const go = async (app: App) => {
   state.isAnOSSRepo = isOSS
 
   await setupDangerfile(ui, state)
-  await setupGitHubAccount(ui, state)
-  await setupGHAccessToken(ui, state)
-  await addToCI(ui, state)
+
+  if (!state.isAnOSSRepo) {
+    await setupGitHubAccount(ui, state)
+    await setupGHAccessToken(ui, state)
+    await addToCI(ui, state)
+  } else {
+    await githubActions(ui, state)
+  }
   await wrapItUp(ui, state)
   await thanks(ui, state)
 }
@@ -65,9 +70,9 @@ const showTodoState = async (ui: InitUI) => {
   await ui.pause(0.6)
   ui.say(` - [ ] Create a Dangerfile and add a few simple rules.`)
   await ui.pause(0.6)
-  ui.say(` - [ ] Create a GitHub account for Danger to use, for messaging.`)
+  ui.say(` - [ ] Potentially create a GitHub account for Danger to use, for messaging.`)
   await ui.pause(0.6)
-  ui.say(` - [ ] Set up an access token for Danger.`)
+  ui.say(` - [ ] Set up an access token for Danger to comment with.`)
   await ui.pause(0.6)
   ui.say(" - [ ] Set up Danger to run on your CI.\n")
 
@@ -225,7 +230,9 @@ const addToCI = async (ui: InitUI, state: InitState) => {
   ui.header("Add to CI")
 
   await ui.pause(0.6)
-  if (state.ciType === "travis") {
+  if (state.ciType === "gh-actions") {
+    await githubActions(ui, state)
+  } else if (state.ciType === "travis") {
     await travis(ui, state)
   } else if (state.ciType === "circle") {
     await circle(ui, state)

source/commands/init/add-to-ci.ts

@@ -1,4 +1,63 @@
 import { InitUI, InitState, highlight } from "./interfaces"
+import chalk from "chalk"
+
+export const githubActions = async (ui: InitUI, state: InitState) => {
+  if (!state.isAnOSSRepo) {
+    ui.say("For your closed-source project, we can use the default GitHub Auth token for posting.")
+    ui.pause(0.5)
+
+    ui.say("You will want to add a new step in an existing workflow yaml file.")
+    ui.pause(0.2)
+
+    ui.say("The step should look like this:")
+    ui.say("")
+    ui.say("```yaml")
+    ui.say(chalk.bold("    - name: Run Danger"))
+    ui.say(chalk.bold("      run: yarn danger ci"))
+    ui.say(chalk.bold("      env:"))
+    ui.say(chalk.bold("        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}`"))
+    ui.say("```")
+    ui.say("")
+    ui.pause(1)
+
+    ui.say("This will run Danger on every PR, press return when you have added this to one of your workflows.")
+    ui.waitForReturn()
+    return
+  }
+
+  const link = ui.link("issue #918.", "https://github.com/danger/danger-js/issues/918")
+  ui.say(
+    `For your OSS project, there are a few options you can find in ${link}. We will continue with using the new GitHub user account here.`
+  )
+  ui.pause(0.5)
+
+  ui.say("For your OSS project, you need to add a new secret to your workflow in a way that is slightly obfuscated.")
+  ui.say("This is because GitHub Actions doesn't allow you to use the default GITHUB_TOKEN to update its own comments.")
+  ui.pause(0.5)
+  ui.say("This would make Danger very spammy on a Pull Request.")
+
+  ui.pause(0.1)
+  ui.say("To get started, add a new step in an existing workflow file.")
+  ui.say("The step should look like this:")
+  ui.say("")
+  ui.say("```yaml")
+  ui.say(
+    chalk.bold(`)
+    - name: Run Danger
+      run: |
+      # Exposing this token is safe because the user of it has no other public repositories
+      # and has no permission to modify this repository.
+      TOKEN='ghp_On3bHOkcV2AmVY6'
+      TOKEN+='56186c3b09b4f86b1c65136769'
+      DANGER_GITHUB_API_TOKEN=$TOKEN yarn danger ci`)
+  )
+  ui.say("```")
+  ui.say("")
+  ui.pause(1)
+
+  ui.say("This will run Danger on every PR, press return when you have added this to one of your workflows.")
+  ui.waitForReturn()
+}
 
 export const travis = async (ui: InitUI, state: InitState) => {
   // https://travis-ci.org/artsy/eigen/settings

source/commands/init/default-dangerfile.ts

@@ -34,17 +34,21 @@ export const generateDefaultDangerfile = (state: InitState) => {
 
   ${rules.join("\n")}
   `
-  return formatDangerfile(dangerfile, dangerfileState)
+  return formatDangerfile(dangerfile, state, dangerfileState)
 }
 
-export const formatDangerfile = (dangerfile: string, dangerfileState: any) => {
+export const formatDangerfile = (
+  dangerfile: string,
+  initState: InitState,
+  dangerfileState: ReturnType<typeof generateDangerfileState>
+) => {
   if (dangerfileState.hasPrettier) {
     // eslint-disable-next-line @typescript-eslint/no-require-imports
     const { format } = require("prettier")
     // Get package settings
     const localPrettier = fs.existsSync("package.json") && JSON.parse(fs.readFileSync("package.json", "utf8")).prettier
     // Always include this
-    const always = { editorconfig: true }
+    const always = { editorconfig: true, parser: "typescript", filepath: process.cwd() + " /" + initState.filename }
     const settings = localPrettier ? { ...always, ...localPrettier } : always
 
     return format(dangerfile, settings)

source/commands/init/interfaces.ts

@@ -17,7 +17,7 @@ export interface InitState {
   hasSetUpAccountToken: boolean
 
   repoSlug: string | null
-  ciType: "travis" | "circle" | "unknown"
+  ciType: "gh-actions" | "travis" | "circle" | "unknown"
   isGitHub: boolean
 }
 

source/commands/init/state-setup.ts

@@ -38,7 +38,9 @@ export const generateInitialState = (osProcess: NodeJS.Process): InitState => {
   const isBabel = checkForBabel()
   const hasTravis = fs.existsSync(".travis.yml")
   const hasCircle = fs.existsSync("circle.yml")
-  const ciType = hasTravis ? "travis" : hasCircle ? "circle" : "unknown"
+  const hasGitHubActions = fs.existsSync(".github/") && fs.existsSync(".github/workflows")
+
+  const ciType = hasGitHubActions ? "gh-actions" : hasTravis ? "travis" : hasCircle ? "circle" : "unknown"
   const repoSlug = getRepoSlug()
   const isGitHub = !!repoSlug