switch to Biome

Author: cometkim

.prettierignore

@@ -0,0 +1,49 @@
+{
+  "$schema": "https://biomejs.dev/schemas/1.8.3/schema.json",
+  "vcs": {
+    "enabled": true,
+    "clientKind": "git",
+    "defaultBranch": "master",
+    "useIgnoreFile": true
+  },
+  "linter": {
+    "enabled": false
+  },
+  "organizeImports": {
+    "enabled": false
+  },
+  "formatter": {
+    "enabled": true,
+    "formatWithErrors": false,
+    "indentStyle": "space",
+    "indentWidth": 2,
+    "lineEnding": "lf",
+    "lineWidth": 80,
+    "attributePosition": "auto",
+    "ignore": [
+      "_build/**",
+      "_opam/**",
+      "jscomp/build_tests/**/lib/**",
+      "jscomp/build_tests/**/*.bs.js",
+      "jscomp/build_tests/**/*.res.js",
+      "lib/**",
+      "ninja/**",
+      "package.json",
+      "playground/**",
+      "rewatch/target/**"
+    ]
+  },
+  "javascript": {
+    "formatter": {
+      "jsxQuoteStyle": "double",
+      "quoteProperties": "asNeeded",
+      "trailingCommas": "all",
+      "semicolons": "always",
+      "arrowParentheses": "asNeeded",
+      "bracketSpacing": true,
+      "bracketSameLine": false,
+      "quoteStyle": "double",
+      "attributePosition": "auto"
+    }
+  }
+}

.prettierrc.json

@@ -2,9 +2,9 @@
   "name": "rescript",
   "version": "12.0.0-alpha.1",
   "devDependencies": {
+    "@biomejs/biome": "1.8.3",
     "mocha": "10.1.0",
-    "nyc": "15.0.0",
-    "prettier": "2.7.1"
+    "nyc": "15.0.0"
   },
   "engines": {
     "node": ">=18"
@@ -20,8 +20,10 @@
     "test": "node scripts/ciTest.js -all",
     "test-bsb": "node scripts/ciTest.js -bsb",
     "test-ocaml": "node scripts/ciTest.js -ounit",
-    "format": "prettier --write .",
-    "checkFormat": "prettier --check .",
+    "format": "biome format --changed --write .",
+    "format:all": "biome format --write .",
+    "checkFormat": "biome format --changed .",
+    "checkFormat:all": "biome format .",
     "coverage": "nyc --timeout=3000 --reporter=html mocha jscomp/test/*test.js && open ./coverage/index.html"
   },
   "description": "ReScript toolchain",