fix: improve npm publish workflow to check for existing package version before publishing

.github/workflows/npm-publish.yml

@@ -1,6 +1,3 @@
-# This workflow will run tests using node and then publish a package to GitHub Packages when a release is created
-# For more information see: https://docs.github.com/en/actions/publishing-packages/publishing-nodejs-packages
-
 name: NPM Package Publish
 
 on:
@@ -25,21 +22,16 @@ jobs:
       - uses: oven-sh/setup-bun@v2
       - run: bun install
       - run: bun run build
-      - run: |
-          bunx kksh@latest verify --publish
+      - run: bunx kksh@latest verify --publish
+      - name: Check if version is already published
+        run: |
+          PACKAGE_VERSION=$(node -p "require('./package.json').version")
           PACKAGE_NAME=$(jq -r '.name' package.json)
-          PACKAGE_VERSION=$(jq -r '.version' package.json)
-
-          # Get the version from npm registry
-          REGISTRY_VERSION=$(npm show "$PACKAGE_NAME" version)
-
-          # Compare versions
-          if [ "$PACKAGE_VERSION" == "$REGISTRY_VERSION" ]; then
-            echo "Version $PACKAGE_VERSION already exists in the npm registry."
-            exit 0
-          else
-            echo "Version $PACKAGE_VERSION does not exist in the npm registry. Proceeding..."
-            npm publish --provenance --access public
-          fi
+          npm view $PACKAGE_NAME@$PACKAGE_VERSION
+        continue-on-error: true
+        id: check_version
+      - name: Publish
+        if: steps.check_version.outcome != 'success'
+        run: npm publish --provenance --access public
         env:
           NODE_AUTH_TOKEN: ${{secrets.NPM_TOKEN}}