Get rid of rush and move to pnpm

.changeset/README.md

@@ -0,0 +1,8 @@
+# Changesets
+
+Hello and welcome! This folder has been automatically generated by `@changesets/cli`, a build tool that works
+with multi-package repos, or single-package repos to help you version and publish your code. You can
+find the full documentation for it [in our repository](https://github.com/changesets/changesets)
+
+We have a quick list of common questions to get you started engaging with this project in
+[our documentation](https://github.com/changesets/changesets/blob/main/docs/common-questions.md)

.changeset/config.json

@@ -0,0 +1,11 @@
+{
+  "$schema": "https://unpkg.com/@changesets/[email protected]/schema.json",
+  "changelog": "@changesets/cli/changelog",
+  "commit": false,
+  "fixed": [["@azure-tools/typespec-*"]],
+  "linked": [],
+  "access": "public",
+  "baseBranch": "main",
+  "updateInternalDependencies": "patch",
+  "ignore": []
+}

.changeset/odd-berries-look.md

@@ -0,0 +1,2 @@
+---
+---

.github/workflows/consistency.yml

@@ -0,0 +1,41 @@
+name: Consistency
+
+# Controls when the workflow will run
+on:
+  # Triggers the workflow on push or pull request events but only for the "main" branch
+  push:
+    branches: ["main"]
+  pull_request:
+    branches: ["main"]
+  workflow_dispatch: {}
+
+# A workflow run is made up of one or more jobs that can run sequentially or in parallel
+jobs:
+  check-changes:
+    name: Check Changes
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0 ## Needed for Changesets to find `main` branch
+          submodules: recursive
+
+      - run: git pull --force --no-tags origin main:main
+        name: Get main ref
+
+      - name: Use Node.js 20.x
+        uses: actions/setup-node@v3
+        with:
+          node-version: 20.x
+
+      - uses: pnpm/action-setup@v2
+
+      - run: pnpm install
+        name: Install dependencies
+
+      - run: npx -p @changesets/cli changeset status --since=main
+        name: Check changelog
+        if: ${{ !startsWith(github.head_ref, 'publish/') && !startsWith(github.head_ref, 'dependabot/') && !startsWith(github.head_ref, 'backmerge/') }}
+
+      - run: node eng/scripts/validate-core-submodule.js
+        name: Check that core submodule is merged to core repo

.github/workflows/website-gh-pages.yml

@@ -34,11 +34,13 @@ jobs:
         with:
           node-version: 18.x
 
+      - uses: pnpm/action-setup@v2
+
       - name: Install dependencies
-        run: node common/scripts/install-run-rush.js update
+        run: pnpm install
 
       - name: Build
-        run: node common/scripts/install-run-rush.js build --to @azure-tools/typespec-azure-website -v
+        run: pnpm run build --to @azure-tools/typespec-azure-website -v
         env:
           TYPESPEC_WEBSITE_BASE_PATH: "/typespec-azure/"
           NODE_OPTIONS: "--max_old_space_size=4096"

.npmrc

@@ -0,0 +1 @@
+auto-install-peers=true

.prettierignore

@@ -8,7 +8,9 @@
 **/common/temp/
 **/common/scripts/
 **/common/changes/
-**/common/config/rush/pnpm-lock.yaml
+
+# Pnpm lock file
+**/pnpm-lock.yaml
 
 # Coverage report directory
 **/coverage/
@@ -22,6 +24,9 @@ CODE_OF_CONDUCT.md
 # These are auto-generated by rush
 **/CHANGELOG.md
 
+# Emu spec file, formatting is wrong
+core/packages/spec/src/spec.emu.html
+
 # Don't format compiler test typespec files.
 core/packages/compiler/test/formatter/**/*.tsp
 

.prettierrc.json

@@ -9,7 +9,7 @@
   "tabWidth": 2,
   "plugins": [
     "./core/packages/prettier-plugin-typespec/dist/index.js",
-    "./core/packages/compiler/node_modules/prettier-plugin-organize-imports/index.js"
+    "./node_modules/prettier-plugin-organize-imports/index.js"
   ],
   "overrides": [
     {