update CI

.github/workflows/build.yml

@@ -22,3 +22,65 @@ jobs:
       - run: yarn hardhat compile
       - run: yarn lint
       - run: yarn hardhat test
+      - name: Telegram Failure Notification
+        uses: appleboy/telegram-action@0.0.7
+        if: failure()
+        with:
+          message: ❗ Build failed for [${{ github.repository }}](https://github.com/${{ github.repository }}/actions) because of ${{ github.actor }}
+          format: markdown
+          to: ${{ secrets.TELEGRAM_CHAT_ID }}
+          token: ${{ secrets.TELEGRAM_BOT_TOKEN }}
+
+  publish:
+    runs-on: ubuntu-latest
+    needs: build
+    if: startsWith(github.ref, 'refs/tags')
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Install dependencies
+        run: yarn install
+
+      - name: NPM login
+        # NPM doesn't understand env vars and needs auth file lol
+        run: echo "//registry.npmjs.org/:_authToken=${NPM_TOKEN}" > ~/.npmrc
+        env:
+          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
+
+      - name: Set vars
+        id: vars
+        run: |
+          echo "::set-output name=version::$(echo ${GITHUB_REF#refs/tags/v})"
+          echo "::set-output name=repo_name::$(echo ${GITHUB_REPOSITORY#*/})"
+      - name: Check package.json version vs tag
+        run: |
+          [ ${{ steps.vars.outputs.version }} = $(grep '"version":' package.json | grep -o "[0-9.]*") ] || (echo "Git tag doesn't match version in package.json" && false)
+      - name: Publish to npm
+        run: npm publish
+
+      - name: Create GitHub Release Draft
+        uses: actions/create-release@v1
+        with:
+          tag_name: ${{ github.ref }}
+          release_name: Release ${{ steps.vars.outputs.version }}
+          draft: true
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Telegram Notification
+        uses: appleboy/telegram-action@0.0.7
+        with:
+          message: 🚀 Published [${{ steps.vars.outputs.repo_name }}](https://github.com/${{ github.repository }}) version [${{ steps.vars.outputs.version }}](https://www.npmjs.com/package/${{ steps.vars.outputs.repo_name }}/v/${{ steps.vars.outputs.version }}) to npm
+          format: markdown
+          to: ${{ secrets.TELEGRAM_CHAT_ID }}
+          token: ${{ secrets.TELEGRAM_BOT_TOKEN }}
+
+      - name: Telegram Failure Notification
+        uses: appleboy/telegram-action@0.0.7
+        if: failure()
+        with:
+          message: ❗ Failed to publish [${{ steps.vars.outputs.repo_name }}](https://github.com/${{ github.repository }}/actions) because of ${{ github.actor }}
+          format: markdown
+          to: ${{ secrets.TELEGRAM_CHAT_ID }}
+          token: ${{ secrets.TELEGRAM_BOT_TOKEN }}