chore: github actions

Author: Hidetaka Okamoto

.github/workflows/main.yml

@@ -0,0 +1,39 @@
+name: CI
+on: 
+  push:
+    branches:
+      - '!master'
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Begin CI...
+        uses: actions/checkout@v2
+
+      - name: Use Node 12
+        uses: actions/setup-node@v1
+        with:
+          node-version: 12.x
+
+      - name: Use cached node_modules
+        uses: actions/cache@v1
+        with:
+          path: node_modules
+          key: nodeModules-${{ hashFiles('**/yarn.lock') }}
+          restore-keys: |
+            nodeModules-
+      - name: Install dependencies
+        run: yarn install --frozen-lockfile
+        env:
+          CI: true
+
+      - name: Lint
+        run: yarn lint
+        env:
+          CI: true
+
+      - name: Test
+        run: yarn test --ci --coverage --maxWorkers=2
+        env:
+          CI: true

.github/workflows/release.yml

@@ -0,0 +1,20 @@
+name: "Release package"
+on: 
+  push:
+    branches:
+      - master
+
+jobs:
+  release_package:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v1
+
+      - name: "yarn install"
+        run: yarn install --frozen-lockfile
+
+      - name: "npm run semantic-release"
+        run: npm run semantic-release
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}

package.json

@@ -29,6 +29,7 @@
     "globby": "^10",
     "husky": "^4.2.5",
     "lint-staged": "^10.2.11",
+    "semantic-release": "^17.1.1",
     "ts-node": "^8",
     "typescript": "^3.3"
   },
@@ -75,7 +76,8 @@
     "prepack": "rm -rf lib && tsc -b && oclif-dev manifest && oclif-dev readme",
     "test": "echo NO TESTS",
     "lint": "eslint src/**/*.ts",
-    "version": "oclif-dev readme && git add README.md"
+    "version": "oclif-dev readme && git add README.md",
+    "semantic-release": "semantic-release"
   },
   "types": "lib/index.d.ts"
 }