style: format with Prettier + check in CI

.eslintrc → .eslintrc.json

@@ -1,5 +1,8 @@
 {
   "parser": "@typescript-eslint/parser",
   "plugins": ["@typescript-eslint", "prettier"],
-  "extends": ["plugin:@typescript-eslint/recommended", "prettier"]
+  "extends": ["plugin:@typescript-eslint/recommended", "prettier"],
+  "rules": {
+    "prettier/prettier": "error"
+  }
 }

.github/workflows/ci.yml

@@ -15,11 +15,12 @@ jobs:
       - uses: actions/setup-node@v4
         with:
           node-version: 18
-          cache: 'npm'
+          cache: "npm"
 
       - run: npm ci
       - run: npm run build
       - run: npm run lint:commit -- --to "${{ github.sha }}"
       - run: npm run lint:eslint
+      - run: npm run lint:prettier
       - run: npm run test
       - run: npm run start

.github/workflows/codeql.yml

@@ -2,9 +2,9 @@ name: "CodeQL"
 
 on:
   push:
-    branches: [ "master" ]
+    branches: ["master"]
   pull_request:
-    branches: [ "master" ]
+    branches: ["master"]
   schedule:
     - cron: "47 18 * * 3"
 
@@ -20,7 +20,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        language: [ javascript ]
+        language: [javascript]
 
     steps:
       - name: Checkout

.github/workflows/release.yml

@@ -1,37 +1,37 @@
-name: 'Release'
+name: "Release"
 
 on:
   push:
     branches: [master, beta]
 
 jobs:
   release:
-    runs-on: 'ubuntu-latest'
+    runs-on: "ubuntu-latest"
     permissions:
-      contents: 'write'
-      issues: 'write'
-      pull-requests: 'write'
-      id-token: 'write'
+      contents: "write"
+      issues: "write"
+      pull-requests: "write"
+      id-token: "write"
     steps:
-      - uses: 'actions/checkout@v4'
+      - uses: "actions/checkout@v4"
         with:
           fetch-depth: 0
           persist-credentials: false
 
-      - uses: 'actions/setup-node@v4'
+      - uses: "actions/setup-node@v4"
         with:
           node-version: 18
-          cache: 'npm'
+          cache: "npm"
 
-      - run: 'npm ci'
+      - run: "npm ci"
 
-      - run: 'npm run build'
+      - run: "npm run build"
 
-      - name: 'Verify the integrity of provenance attestations and registry signatures for installed dependencies'
-        run: 'npm audit signatures'
+      - name: "Verify the integrity of provenance attestations and registry signatures for installed dependencies"
+        run: "npm audit signatures"
 
-      - name: 'Release'
-        run: 'npm run release'
+      - name: "Release"
+        run: "npm run release"
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           NPM_TOKEN: ${{ secrets.NPM_TOKEN }}

.prettierrc.json

@@ -0,0 +1,3 @@
+{
+  "semi": false
+}

.vscode/settings.json

@@ -1,6 +1,7 @@
 {
   "editor.formatOnSave": true,
+  "editor.defaultFormatter": "esbenp.prettier-vscode",
   "editor.codeActionsOnSave": {
-    "source.fixAll": true
+    "source.fixAll": "explicit"
   }
 }

jest.config.json

@@ -0,0 +1,4 @@
+{
+  "preset": "ts-jest",
+  "testEnvironment": "node"
+}