Add auto PR generation (#48)

* Remap 1.21.6 to Mojang mappings

* start working on automation

* update newVersion script to use manifest

* update scripts

* update doc

* add dispatchable bump workflow

* update workflow env

* update workflows

.github/commands/bump.js

@@ -0,0 +1,38 @@
+const cp = require('child_process')
+const gh = require('gh-helpers')()
+const bump = require('../../tools/newVersion')
+const exec = (a, o) => {
+  console.log('$', a)
+  cp.execSync(a, { stdio: 'inherit', ...o })
+}
+
+module.exports = async ([newVersion], helpers) => {
+  try {
+    bump(newVersion)
+    // Delete any existing branch named 'bump'
+    exec('git branch -D bump')
+    exec('git checkout -b bump')
+    exec('git add mc/' + newVersion)
+    exec('git commit -m "Add version ' + newVersion + '"')
+    exec('git push origin bump --force')
+    const pr = await gh.createPullRequest(
+      'Add version ' + newVersion,
+      'This automated PR adds version ' + newVersion,
+      'bump',
+      'main'
+    )
+    console.log('Pull request created:', pr.html_url)
+  } catch (error) {
+    console.log('Error bumping version:', error)
+    return helpers.reply('Error bumping version: ' + error.message)
+  }
+}
+
+if (require.main === module) {
+  const args = process.argv.slice(2)
+  if (args.length !== 1) {
+    console.error('Usage: node bump.js <newVersion>')
+    process.exit(1)
+  }
+  module.exports(args, { reply: console.log })
+}

.github/workflows/build.yml

@@ -31,6 +31,8 @@ jobs:
           
           versions="${versions%,*}]"
           echo "versions=$versions" >> "$GITHUB_OUTPUT"
+      - name: Ensure that versions.json includes all versions
+        run: node -e 'const fs = require("fs"); const versions = JSON.parse(fs.readFileSync("versions.json", "utf8")); const expectedVersions = fs.readdirSync("mc"); if (expectedVersions.length !== versions.length || !expectedVersions.every(v => versions.includes(v))) { throw new Error("versions.json does not match the expected versions in mc/ folder"); }'
 
   build:
     needs: define-versions

.github/workflows/commands.yml

@@ -0,0 +1,19 @@
+name: Repo Commands
+
+on:
+  issue_comment:        # Handle comment commands
+    types: [created]
+  pull_request_target:  # Handle renamed PRs
+    types: [edited]
+
+jobs:
+  comment-trigger:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Check out repository
+      uses: actions/checkout@v3
+    - name: Run command handlers
+      uses: PrismarineJS/prismarine-repo-actions@master
+      with:
+        # NOTE: You must specify a Personal Access Token (PAT) with repo access here. While you can use the default GITHUB_TOKEN, actions taken with it will not trigger other actions, so if you have a CI workflow, commits created by this action will not trigger it.
+        token: ${{ secrets.PAT_PASSWORD }}

.github/workflows/handle-mcdata-update.yml

@@ -0,0 +1,15 @@
+name: handle-mcdata-update
+on:
+  repository_dispatch:
+    types: [mc-update]
+jobs:
+  update-mcdata:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          submodules: true
+      - run: npm install # install gh-helpers
+      - run: node .github/commands/bump.js ${{ github.event.client_payload.tag }}
+        env:
+          GITHUB_TOKEN: ${{ secrets.PAT_PASSWORD }}