chore: Opt-in cleaned folders and CI for Prettier

.github/workflows/pr-check_markdownlint.yml

@@ -8,7 +8,7 @@ on:
       - "**/*.md"
 
 jobs:
-  docs:
+  cli2:
     runs-on: ubuntu-latest
 
     steps:
@@ -18,8 +18,7 @@ jobs:
         id: changed-files
         uses: tj-actions/[email protected]
         with:
-          files: |
-            **/*.md
+          files: "**/*.md"
 
       - name: Setup Node.js environment
         uses: actions/setup-node@v3
@@ -28,11 +27,36 @@ jobs:
           cache: yarn
 
       - name: Install all yarn packages
-        run: |
-          yarn --frozen-lockfile
+        run: yarn --frozen-lockfile
 
       - name: Lint markdown files
         run: |
           echo "::add-matcher::.github/workflows/markdownlint-problem-matcher.json"
           files_to_lint="${{ steps.changed-files.outputs.all_changed_files }}"
           yarn markdownlint-cli2 ${files_to_lint}
+
+  prettier:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Get changed files
+        id: changed-files
+        uses: tj-actions/[email protected]
+        with:
+          files: "**/*.md"
+
+      - name: Setup Node.js environment
+        uses: actions/setup-node@v3
+        with:
+          node-version: "16"
+          cache: yarn
+
+      - name: Install all yarn packages
+        run: yarn --frozen-lockfile
+
+      - name: Prettier markdown files
+        run: |
+          files_to_lint="${{ steps.changed-files.outputs.all_changed_files }}"
+          yarn prettier -c ${files_to_lint}

.prettierignore

@@ -3,3 +3,15 @@ build/
 # Ignore markdown files till full pass is made on each folder
 *.md
 
+# Opt-in folders that have prettier run on them
+!/*.md
+!/files/en-us/games/**/*.md
+!/files/en-us/glossary/**/*.md
+!/files/en-us/related/**/*.md
+!/files/en-us/webassembly/**/*.md
+
+# Folders that have not fully run prettier for their code fences
+# !/files/en-us/learn/**/*.md
+# !/files/en-us/mdn/**/*.md
+# !/files/en-us/mozilla/**/*.md
+# !/files/en-us/web/**/*.md