Update npm-publish.yml

.github/workflows/npm-publish.yml

@@ -1,31 +1,65 @@
-name: Publish to npm
+name: Publish to npm (Only if version changes)
 
 on:
   push:
     branches:
       - main
 
 jobs:
-  publish:
+  check-and-publish:
     runs-on: ubuntu-latest
 
     steps:
       - name: Checkout code
         uses: actions/checkout@v3
+        with:
+          fetch-depth: 2 # Fetch the last commit for comparison
 
       - name: Set up Node.js
         uses: actions/setup-node@v3
         with:
           node-version: 18
           registry-url: "https://registry.npmjs.org/"
 
+      - name: Get previous package.json version
+        id: prev_version
+        run: |
+          PREV_VERSION=$(git show HEAD~1:package.json | jq -r '.version')
+          echo "Previous version: $PREV_VERSION"
+          echo "PREV_VERSION=$PREV_VERSION" >> $GITHUB_ENV
+
+      - name: Get current package.json version
+        id: current_version
+        run: |
+          CUR_VERSION=$(jq -r '.version' package.json)
+          echo "Current version: $CUR_VERSION"
+          echo "CUR_VERSION=$CUR_VERSION" >> $GITHUB_ENV
+
+      - name: Check if version changed
+        id: version_check
+        run: |
+          if [ "$PREV_VERSION" != "$CUR_VERSION" ]; then
+            echo "Version changed, proceeding with publish."
+            echo "PUBLISH=true" >> $GITHUB_ENV
+          else
+            echo "Version did not change, skipping publish."
+            echo "PUBLISH=false" >> $GITHUB_ENV
+          fi
+
       - name: Install dependencies
+        if: env.PUBLISH == 'true'
         run: npm install
 
-      - name: Build the package (if using TypeScript)
+      - name: Build package (if necessary)
+        if: env.PUBLISH == 'true'
         run: npm run build || echo "No build step"
 
       - name: Publish to npm
+        if: env.PUBLISH == 'true'
         run: npm publish --access public
         env:
           NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+
+      - name: Skip publishing
+        if: env.PUBLISH == 'false'
+        run: echo "No version change detected. Skipping npm publish."