add release workflows

.github/workflows/ci.yml

@@ -51,4 +51,55 @@ jobs:
         uses: coverallsapp/github-action@master
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
-          path-to-lcov: ./lcov.info
+          path-to-lcov: ./lcov.info
+  release:
+    needs: build
+    runs-on: ubuntu-latest
+    if: github.event_name == 'push' && contains(github.ref, 'refs/tags/')
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/cache@v2
+        id: node-cache
+        with:
+          path: ~/.npm
+          key: ${{ runner.os }}-node-16-${{ hashFiles('**/package-lock.json') }}
+          restore-keys: |
+            ${{ runner.os }}-node-16-
+      - name: Use node version 16
+        uses: actions/setup-node@v2
+        with:
+          node-version: 16
+          registry-url: 'https://registry.npmjs.org'
+      - run: npm ci
+      - run: npm publish
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+      - run: npm run build:docs
+      - name: Publish docs to github pages
+        uses: JamesIves/github-pages-deploy-action@4.1.3
+        with:
+          branch: gh-pages
+          folder: docs/build
+  nightly:
+    needs: build
+    runs-on: ubuntu-latest
+    if: github.ref == 'refs/heads/master'
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/cache@v2
+        id: node-cache
+        with:
+          path: ~/.npm
+          key: ${{ runner.os }}-node-16-${{ hashFiles('**/package-lock.json') }}
+          restore-keys: |
+            ${{ runner.os }}-node-16-
+      - name: Use node version 16
+        uses: actions/setup-node@v2
+        with:
+          node-version: 16
+          registry-url: 'https://registry.npmjs.org'
+      - run: npm ci
+      - run: npm version "$(npm view currency.js@latest version)-${GITHUB_SHA:0:8}" --allow-same-version --no-git-tag-version
+      - run: npm publish
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}