Implement MetaMask/action-checkout-and-setup

.github/workflows/build-lint-test.yml

@@ -8,30 +8,25 @@ jobs:
     name: Prepare
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
-      - name: Use Node.js
-        uses: actions/setup-node@v3
+      - name: Checkout and setup environment
+        uses: MetaMask/action-checkout-and-setup@v1
         with:
-          node-version-file: '.nvmrc'
-          cache: 'yarn'
-      - name: Install Yarn dependencies
-        run: yarn --immutable
+          is-high-risk-environment: false
+          cache-node-modules: true
 
   build:
     name: Build
     runs-on: ubuntu-latest
     needs:
       - prepare
     steps:
-      - uses: actions/checkout@v3
-      - name: Use Node.js
-        uses: actions/setup-node@v3
+      - name: Checkout and setup environment
+        uses: MetaMask/action-checkout-and-setup@v1
         with:
-          node-version-file: '.nvmrc'
-          cache: 'yarn'
-      - run: yarn --immutable --immutable-cache
-      - run: yarn build
-      - name: Cache snap build
+          is-high-risk-environment: false
+      - name: Build
+        run: yarn build
+      - name: Cache Snap build
         uses: actions/cache@v3
         with:
           path: ./packages/snap/dist
@@ -50,14 +45,12 @@ jobs:
     needs:
       - prepare
     steps:
-      - uses: actions/checkout@v3
-      - name: Use Node.js
-        uses: actions/setup-node@v3
+      - name: Checkout and setup environment
+        uses: MetaMask/action-checkout-and-setup@v1
         with:
-          node-version-file: '.nvmrc'
-          cache: 'yarn'
-      - run: yarn --immutable --immutable-cache
-      - run: yarn lint
+          is-high-risk-environment: false
+      - name: Lint
+        run: yarn lint
       - name: Require clean working directory
         shell: bash
         run: |
@@ -73,18 +66,15 @@ jobs:
       - prepare
       - build
     steps:
-      - uses: actions/checkout@v3
-      - name: Use Node.js
-        uses: actions/setup-node@v3
+      - name: Checkout and setup environment
+        uses: MetaMask/action-checkout-and-setup@v1
         with:
-          node-version-file: '.nvmrc'
-          cache: 'yarn'
-      - name: Restore snap build cache
+          is-high-risk-environment: false
+      - name: Restore Snap build cache
         uses: actions/cache@v3
         with:
           path: ./packages/snap/dist
           key: snap-${{ runner.os }}-${{ github.sha }}
-      - run: yarn install --immutable
       - name: Run e2e tests
         run: yarn workspace snap run test
       - name: Require clean working directory

.github/workflows/main.yml

@@ -10,7 +10,10 @@ jobs:
     name: Check workflows
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - name: Checkout and setup environment
+        uses: MetaMask/action-checkout-and-setup@v1
+        with:
+          is-high-risk-environment: false
       - name: Download actionlint
         id: download-actionlint
         run: bash <(curl https://raw.githubusercontent.com/rhysd/actionlint/7fdc9630cc360ea1a469eed64ac6d78caeda1234/scripts/download-actionlint.bash) 1.6.23