Chore: automatically publish the npm package when the version is updated (#28)

Author: katspaugh

.github/workflows/npm-publish.yml

@@ -0,0 +1,53 @@
+name: NPM Package
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  publish-npm:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - run: npm install
+
+      - name: Extract version
+        id: version
+        run: |
+          OLD_VERSION=$(npm show @gnosis.pm/safe-react-gateway-sdk version)
+          NEW_VERSION=$(node -p 'require("./package.json").version')
+          if [ $NEW_VERSION != $OLD_VERSION ]; then
+            echo "New version $NEW_VERSION detected"
+            echo "::set-output name=version::v$NEW_VERSION"
+            git log "v$OLD_VERSION"..HEAD --pretty=format:"* %s" > CHANGELOG.md
+          else
+            echo "Version $OLD_VERSION hasn't changed, skipping the release"
+            exit 1
+          fi
+
+      - name: Publish to NPM
+        uses: JS-DevTools/npm-publish@v1
+        with:
+          token: ${{ secrets.NPM_TOKEN }}
+
+      - name: Create a git tag
+        run: git tag $NEW_VERSION && git push --tags
+        env:
+          NEW_VERSION: ${{ steps.version.outputs.version }}
+
+      - name: GitHub release
+        uses: actions/create-release@v1
+        id: create_release
+        with:
+          draft: false
+          prerelease: false
+          release_name: ${{ steps.version.outputs.version }}
+          tag_name: ${{ steps.version.outputs.version }}
+          body_path: CHANGELOG.md
+        env:
+          GITHUB_TOKEN: ${{ github.token }}

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@gnosis.pm/safe-react-gateway-sdk",
-  "version": "2.5.0",
+  "version": "2.5.2",
   "main": "dist/index.min.js",
   "types": "dist/index.d.ts",
   "files": [