chore: use github actions

.github/workflows/lint.yml

@@ -0,0 +1,24 @@
+name: Lint
+
+on:
+  - push
+  - pull_request
+
+jobs:
+  lint:
+    name: Lint
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v2
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v2-beta
+        with:
+          node-version: "12"
+
+      - name: Install Dependencies
+        run: yarn
+
+      - name: Lint
+        run: yarn lint

.github/workflows/test.yml

@@ -0,0 +1,24 @@
+name: Test
+
+on:
+  - push
+  - pull_request
+
+jobs:
+  test:
+    name: Test
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v2
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v2-beta
+        with:
+          node-version: "12"
+
+      - name: Install Dependencies
+        run: yarn
+
+      - name: Test
+        run: yarn test --ci

.github/workflows/update.yml

@@ -0,0 +1,66 @@
+name: Up to Date
+
+on:
+  schedule:
+    - cron: "0 0 * * *"
+
+jobs:
+  update:
+    name: Update
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v2-beta
+        with:
+          node-version: "12"
+
+      - name: Install Dependencies
+        run: yarn
+
+      - name: Generate Cheat Sheet
+        run: yarn generate
+
+      - name: Push New Cheat Sheet to Updated Branch
+        run: |
+          git diff --name-only --exit-code && exit 0
+          git add README.md
+          git config --global user.name "github-actions[bot]"
+          git config --global user.email "41898282+github-actions[bot]@users.noreply.github.com"
+          git commit -m "docs(readme): update emoji-cheat-sheet"
+          git push -qf "https://${{ secrets.GITHUB_TOKEN }}@github.com/ikatyang/emoji-cheat-sheet.git" HEAD:github-actions-auto-update
+
+      - name: Create PR from Updated Branch
+        uses: actions/github-script@v2
+        with:
+          github-token: ${{secrets.GITHUB_TOKEN}}
+          script: |
+            const {owner, repo} = context.repo
+            const branch = 'github-actions-auto-update'
+            const {status: branchStatus} = await github.repos.getBranch({
+              owner,
+              repo,
+              branch,
+            })
+            if (branchStatus !== 200) {
+              return
+            }
+            const {status, data: prs} = await github.pulls.list({
+              owner,
+              repo,
+              head: branch,
+              state: 'open',
+            })
+            if (status === 200 && prs.length === 0) {
+              await github.pulls.create({
+                owner,
+                repo,
+                head: branch,
+                title: 'docs(readme): update emoji-cheat-sheet',
+                base: 'master',
+              })
+            }