chore: add GH workflow

Author: Julien Bouquillon

.github/workflows/main.yml

@@ -0,0 +1,87 @@
+name: main
+on:
+  - push
+  - pull_request
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version:
+          - 12.x
+
+    steps:
+      - name: Set up Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node-version }}
+
+      - name: Get yarn cache directory path
+        id: init
+        shell: bash
+        run: |
+          echo "::set-output name=yarn_cache::$(yarn cache dir)"
+          #
+          echo "Node $(node --version)"
+          echo "Yarn $(yarn --version)"
+      - uses: actions/checkout@v2
+
+      - name: Cache Yarn packages
+        id: yarn_cache_packages
+        uses: actions/cache@v1
+        with:
+          path: ${{ steps.init.outputs.yarn_cache }}
+          key: ${{ runner.os }}-yarn_cache-${{ hashFiles('yarn.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-yarn_cache-
+      - name: Cache node_modules
+        uses: actions/cache@v1
+        with:
+          path: node_modules
+          key: ${{ runner.os }}-${{ matrix.node-version }}-yarn-${{ hashFiles('yarn.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-${{ matrix.node-version }}-yarn-
+
+      - name: Installing
+        run: yarn --frozen-lockfile --perfer-offline --link-duplicates
+
+      - name: Lint
+        run: yarn lint
+
+      - name: Unit tests
+        run: yarn test --coverage --coverageReporters=lcov --coverageReporters=text-summary
+
+      - name: Send test coverage to codecov
+        continue-on-error: true
+        uses: codecov/codecov-action@v1
+
+      - name: Build
+        run: yarn build
+
+  release:
+    needs: [build]
+    if: github.event_name == 'push'
+    runs-on: ubuntu-latest
+    steps:
+      - name: Set up Node
+        uses: actions/setup-node@v1
+        with:
+          node-version: 12.x
+
+      - uses: actions/checkout@v2
+
+      - name: Semantic Release
+        uses: cycjimmy/semantic-release-action@v2
+        with:
+          extra_plugins: |
+            @semantic-release/changelog
+            @semantic-release/git
+        env:
+          GIT_AUTHOR_EMAIL: ${{ secrets.GIT_AUTHOR_EMAIL }}
+          GIT_AUTHOR_NAME: ${{ secrets.GIT_AUTHOR_NAME }}
+          GIT_COMMITTER_EMAIL: ${{ secrets.GIT_AUTHOR_EMAIL }}
+          GIT_COMMITTER_NAME: ${{ secrets.GIT_AUTHOR_NAME }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}