fixup! build: add GitHub Action to update tools modules

Author: Trott

.github/workflows/tools.yml

@@ -15,13 +15,32 @@ jobs:
       matrix:
         include:
           - id: eslint
-            run: tools/update-eslint.sh
-          - id: babel-eslint
-            run: tools/update-babel-eslint.sh
-          - id: lint-md
             run: |
-              (cd tools/lint-md && rm -rf package-lock.json node_modules && npm install --ignore-scripts)
-              make lint-md-rollup
+              cd tools
+              NEW_VERSION=$(npm view eslint dist-tags.latest)
+              CURRENT_VERSION=$(node -p "require('./node_modules/eslint/package.json').version")
+              if [ "$NEW_VERSION" != "$CURRENT_VERSION" ]; then
+                echo "NEW_VERSION=$NEW_VERSION" >> $GITHUB_ENV
+                tools/update-eslint.sh  
+              fi
+          - id: "@babel/eslint-parser"
+            run: |
+              cd tools
+              NEW_VERSION=$(npm view @babel/eslint-parser dist-tags.latest)
+              CURRENT_VERSION=$(node -p "require('./node_modules/@babel/eslint-parser/package.json').version")
+              if [ "$NEW_VERSION" != "$CURRENT_VERSION" ]; then
+                echo "NEW_VERSION=$NEW_VERSION" >> $GITHUB_ENV
+                tools/update-babel-eslint.sh
+              fi
+          - id: "lint-md dependencies"
+            run: |
+              cd tools/lint-md
+              NEW_VERSION=$(npm outdated --parseable | cut -d: -f4 | xargs)
+              if [ "$NEW_VERSION" != "" ]; then
+                echo "NEW_VERSION=$NEW_VERSION" >> $GITHUB_ENV
+                rm -rf package-lock.json node_modules && npm install --ignore-scripts)
+                make lint-md-rollup
+              fi
     steps:
       - uses: actions/checkout@v2
       - run: ${{ matrix.run }}
@@ -30,8 +49,8 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GH_USER_TOKEN }}
         with:
           author: Node.js GitHub Bot <github-bot@iojs.org>
-          body: "This is an automated update of ${{ matrix.id }} and/or its dependencies."
+          body: "This is an automated update of ${{ matrix.id }} to ${{ env.NEW_VERSION }}."
           branch: "actions/tools-update-${{ matrix.id }}"  # Custom branch *just* for this Action.
-          commit-message: "tools: update ${{ matrix.id }} and/or its dependencies"
+          commit-message: "tools: update ${{ matrix.id }} to ${{ env.NEW_VERSION }}"
           labels: tools
-          title: "tools: update ${{ matrix.id }} and/or its dependencies"
+          title: "tools: update ${{ matrix.id }} to ${{ env.NEW_VERSION }}"