Add linters

Author: sethvargo

.github/workflows/test.yml

@@ -47,7 +47,7 @@ jobs:
 
       - uses: 'actions/setup-node@1d0ff469b7ec7b3cb9d8673fde0c81c44821de2a' # ratchet:actions/setup-node@v4
         with:
-          node-version: '20.x'
+          node-version-file: 'package.json'
 
       - name: 'npm build'
         run: 'npm ci && npm run build'
@@ -63,7 +63,8 @@ jobs:
   # Direct Workload Identity Federation
   #
   direct_workload_identity_federation:
-    if: ${{ github.event_name == 'push' || github.repository == github.event.pull_request.head.repo.full_name }}
+    if: |-
+      ${{ github.event_name == 'push' || github.repository == github.event.pull_request.head.repo.full_name }}
     name: 'direct_workload_identity_federation'
     runs-on: '${{ matrix.os }}'
     strategy:
@@ -82,7 +83,7 @@ jobs:
 
       - uses: 'actions/setup-node@1d0ff469b7ec7b3cb9d8673fde0c81c44821de2a' # ratchet:actions/setup-node@v4
         with:
-          node-version: '20.x'
+          node-version-file: 'package.json'
 
       - name: 'npm build'
         run: 'npm ci && npm run build'
@@ -116,7 +117,8 @@ jobs:
   # Workload Identity Federation through a Service Account
   #
   workload_identity_federation_through_service_account:
-    if: ${{ github.event_name == 'push' || github.repository == github.event.pull_request.head.repo.full_name }}
+    if: |-
+      ${{ github.event_name == 'push' || github.repository == github.event.pull_request.head.repo.full_name }}
     name: 'workload_identity_federation_through_service_account'
     runs-on: '${{ matrix.os }}'
     strategy:
@@ -135,7 +137,7 @@ jobs:
 
       - uses: 'actions/setup-node@1d0ff469b7ec7b3cb9d8673fde0c81c44821de2a' # ratchet:actions/setup-node@v4
         with:
-          node-version: '20.x'
+          node-version-file: 'package.json'
 
       - name: 'npm build'
         run: 'npm ci && npm run build'
@@ -187,7 +189,8 @@ jobs:
   # Service Account Key JSON
   #
   credentials_json:
-    if: ${{ github.event_name == 'push' || github.repository == github.event.pull_request.head.repo.full_name }}
+    if: |-
+      ${{ github.event_name == 'push' || github.repository == github.event.pull_request.head.repo.full_name }}
     name: 'credentials_json'
     runs-on: '${{ matrix.os }}'
     strategy:
@@ -203,7 +206,7 @@ jobs:
 
       - uses: 'actions/setup-node@1d0ff469b7ec7b3cb9d8673fde0c81c44821de2a' # ratchet:actions/setup-node@v4
         with:
-          node-version: '20.x'
+          node-version-file: 'package.json'
 
       - name: 'npm build'
         run: 'npm ci && npm run build'
@@ -254,7 +257,8 @@ jobs:
   # has permissions to read the file.
   #
   docker:
-    if: ${{ github.event_name == 'push' || github.repository == github.event.pull_request.head.repo.full_name }}
+    if: |-
+      ${{ github.event_name == 'push' || github.repository == github.event.pull_request.head.repo.full_name }}
     name: 'docker'
     runs-on: 'ubuntu-latest'
     strategy:
@@ -264,7 +268,7 @@ jobs:
 
       - uses: 'actions/setup-node@1d0ff469b7ec7b3cb9d8673fde0c81c44821de2a' # ratchet:actions/setup-node@v4
         with:
-          node-version: '20.x'
+          node-version-file: 'package.json'
 
       - name: 'npm build'
         run: 'npm ci && npm run build'

bin/runTests.sh

@@ -16,4 +16,6 @@ set -eEuo pipefail
 FILES="$(node -e "process.stdout.write(require('node:fs').readdirSync('./', { recursive: true }).filter((e) => {return e.endsWith('.test.ts') && !e.startsWith('node_modules');}).sort().join(' '));")"
 
 set -x
+
+# shellcheck disable=SC2086
 exec node --require ts-node/register --test-reporter spec --test ${FILES}

package.json

@@ -9,6 +9,10 @@
     "format": "eslint . --fix",
     "test": "bash ./bin/runTests.sh"
   },
+  "engines": {
+    "node": "20.x",
+    "npm": "10.x"
+  },
   "repository": {
     "type": "git",
     "url": "https://github.com/google-github-actions/auth"