Replace jest, eslint, and prettier for consistency w/ other projects

.github/workflows/ci.yaml

@@ -14,6 +14,10 @@ jobs:
         uses: ./.github/actions/setup
       - name: lint
         run: pnpm run lint
+      - name: typecheck
+        run: pnpm run typecheck
+      - name: license-header
+        run: pnpm run license-header -- --check
   test:
     runs-on: ubuntu-latest
     steps:

biome.json

@@ -0,0 +1,49 @@
+{
+  "$schema": "https://biomejs.dev/schemas/2.5.0/schema.json",
+  "vcs": {
+    "enabled": true,
+    "clientKind": "git",
+    "useIgnoreFile": true
+  },
+  "files": {
+    "ignoreUnknown": true,
+    "includes": [
+      "**",
+      "!**/dist",
+      "!packages/knit-test-spec/spec",
+      "!packages/knit-test-spec/buf",
+      "!**/tsconfig*.json"
+    ]
+  },
+  "formatter": {
+    "indentStyle": "space"
+  },
+  "linter": {
+    "rules": {
+      "preset": "recommended",
+      "style": {
+        "useTemplate": "off",
+        "useConst": "off",
+        "noParameterAssign": "off",
+        "useSingleVarDeclarator": "off",
+        "useNumberNamespace": "off",
+        "noUnusedTemplateLiteral": "off"
+      },
+      "correctness": {
+        "noSwitchDeclarations": "off"
+      },
+      "suspicious": {
+        "noDoubleEquals": "off",
+        "noFallthroughSwitchClause": "off"
+      }
+    }
+  },
+  "overrides": [
+    {
+      "includes": ["**/*.test.ts", "**/src/testing/**", "**/tsup.config.ts"],
+      "linter": {
+        "enabled": false
+      }
+    }
+  ]
+}

package.json

@@ -8,19 +8,24 @@
   "scripts": {
     "clean": "turbo run clean --no-daemon --cache-dir=.turbo",
     "build": "turbo run build --no-daemon --cache-dir=.turbo",
-    "lint": "turbo run lint --no-daemon --cache-dir=.turbo",
     "attw": "turbo run attw --no-daemon --cache-dir=.turbo",
     "test": "turbo run test --no-daemon --cache-dir=.turbo",
     "test:watch": "turbo run test:watch --no-daemon --cache-dir=.turbo",
+    "typecheck": "turbo run typecheck --no-daemon --cache-dir=.turbo",
     "buf:generate": "turbo run buf:generate --no-daemon --cache-dir=.turbo",
-    "format": "prettier --write \"**/*.{ts,tsx,md}\""
+    "lint": "biome lint --error-on-warnings",
+    "format": "biome format --write",
+    "license-header": "license-header --ignore 'packages/*/dist/**' --ignore 'packages/knit-test-spec/spec/**' --ignore 'packages/knit-test-spec/buf/**' --ignore 'packages/knit-test-spec/proto/**'"
+  },
+  "licenseHeader": {
+    "licenseType": "apache",
+    "yearRange": "2023-2024",
+    "copyrightHolder": "Buf Technologies, Inc."
   },
   "devDependencies": {
     "@types/node": "^25.9.3",
-    "eslint-config-custom": "workspace:*",
-    "jest": "^30.4.2",
-    "prettier": "^3.8.4",
-    "ts-jest": "^29.4.11",
+    "@biomejs/biome": "^2.5.0",
+    "@bufbuild/license-header": "^0.0.4",
     "turbo": "^2.9.18",
     "typescript": "^6.0.3",
     "@arethetypeswrong/cli": "^0.18.3"

packages/knit-test-spec/package.json

@@ -16,4 +16,4 @@
     "@bufbuild/protoc-gen-es": "^2.12.0",
     "@bufbuild/protoc-gen-knit-ts": "workspace:*"
   }
-}
+}

packages/knit/package.json

@@ -12,10 +12,11 @@
   "type": "module",
   "scripts": {
     "clean": "rm -rf ./dist/* .turbo/*",
-    "lint": "eslint .",
     "attw": "attw --pack",
-    "test": "NODE_OPTIONS=--experimental-vm-modules ../../node_modules/.bin/jest",
-    "test:watch": "pnpm run build:esm+types --watch & pnpm run test --watchAll",
+    "typecheck": "tsc --noEmit -p tsconfig.test.json",
+    "test": "tsx --test $(find src -type f -path '*.test.ts')",
+    "test:watch": "tsx --watch --test $(find src -type f -path '*.test.ts')",
+    "test:update-snapshots": "tsx --test --test-update-snapshots $(find src -type f -path '*.test.ts')",
     "build:esm": "tsup --format esm",
     "build:cjs": "tsup --format cjs && mv ./dist/cjs/index.d.cts ./dist/cjs/index.d.ts && mv ./dist/cjs/gateway/index.d.cts ./dist/cjs/gateway/index.d.ts",
     "build": "pnpm run build:esm && pnpm run build:cjs"
@@ -58,10 +59,9 @@
   "devDependencies": {
     "@buf/bufbuild_knit.bufbuild_es": "2.12.0-20250213130123-9561c696fd69.1",
     "@bufbuild/knit-test-spec": "workspace:*",
-    "@jest/globals": "^30.4.1",
-    "eslint-config-custom": "workspace:*",
     "tsconfig": "workspace:*",
-    "tsup": "^8.5.1"
+    "tsup": "^8.5.1",
+    "tsx": "^4.22.4"
   },
   "files": [
     "dist/**"

packages/knit/src/alias.ts

@@ -81,5 +81,5 @@ export function getAlias(
   if (!(aliasSymbol in v && "value" in v)) {
     return undefined;
   }
-  return { alias: v[aliasSymbol] as string, value: v["value"] };
+  return { alias: v[aliasSymbol] as string, value: v.value };
 }