Using bun

.github/workflows/ci.yml

@@ -15,42 +15,42 @@ jobs:
   unitTest:
     runs-on: ubuntu-latest
     steps:
-      - name: Get yarn cache dir
-        id: yarnCache
-        run: echo "dir=$(yarn cache dir)" >> $GITHUB_OUTPUT
       - name: Checkout
         uses: actions/checkout@v4
-      - name: Install Node.js
-        uses: actions/setup-node@v4
+      - name: Install bun
+        uses: oven-sh/setup-bun@v2
         with:
-          node-version: 18.x
+          bun-version: latest
+      - name: Get bun cache dir
+        id: bunCache
+        run: echo "dir=$(bun pm cache)" >> $GITHUB_OUTPUT
       - name: Cache node modules
         uses: actions/cache@v4
         env:
-          cache-name: cache-yarn
+          cache-name: cache-bun
         with:
-          path: ${{ steps.yarnCache.outputs.dir }}
-          key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('**/yarn.lock') }}
+          path: ${{ steps.bunCache.outputs.dir }}
+          key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('**/bun.lockb') }}
       - name: Install dependencies
-        run: yarn install
+        run: bun install
       - name: Testing
         run: |
-          yarn lint
-          yarn test
+          bun run lint
+          bun run test
       - name: Coveralls
         uses: coverallsapp/github-action@v2
         continue-on-error: true
         with:
           github-token: ${{ secrets.github_token }}
       - name: Benchmark
-        run: yarn vitest bench --run
+        run: bunx vitest bench --run --outputJson bench.json
       - name: Benchmark processing
         if: ${{ github.event_name == 'pull_request' }}
         run: |
           echo "# Performance benchmark" >> bench.txt
           echo ${{ github.event.pull_request.head.sha }} >> bench.txt
           echo '```' >> bench.txt
-          yarn tsx tools/benchmark.processor.ts >> bench.txt
+          bun run tools/benchmark.processor.ts >> bench.txt
           echo '```' >> bench.txt
       - name: Store results
         if: ${{ github.event_name == 'pull_request' }}
@@ -109,43 +109,44 @@ jobs:
         - 5.15.0
         - latest
     steps:
-      - name: Get yarn cache dir
-        id: yarnCache
-        run: echo "dir=$(yarn cache dir)" >> $GITHUB_OUTPUT
       - name: Checkout
         uses: actions/checkout@v4
-      - name: Install Node.js
-        uses: actions/setup-node@v4
+      - name: Install bun
+        uses: oven-sh/setup-bun@v2
         with:
-          node-version: 18.x
+          bun-version: latest
+      - name: Get bun cache dir
+        id: bunCache
+        run: echo "dir=$(bun pm cache)" >> $GITHUB_OUTPUT
       - name: Cache node modules
         uses: actions/cache@v4
         env:
-          cache-name: cache-yarn
+          cache-name: cache-bun
         with:
-          path: ${{ steps.yarnCache.outputs.dir }}
-          key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('**/yarn.lock') }}
+          path: ${{ steps.bunCache.outputs.dir }}
+          key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('**/bun.lockb') }}
       - name: Install dependencies
-        run: yarn install
+        run: bun install
       - name: Build
-        run: yarn build
+        run: bun run build
       - name: Test
         env:
           MUI_VERSION: ${{ matrix.mui-version }}
         run: |
+          bun link
           cat >integration-test/package.json <<EOF
             {
               "name": "integration-test",
               "version": "1.0.0",
               "license": "MIT",
               "dependencies": {
-                "merge-sx": "link:./..",
+                "merge-sx": "link:merge-sx",
                 "@mui/material": "${MUI_VERSION}",
                 "react": "^17.0.2",
                 "react-dom": "^17.0.2"
               }
             }
           EOF
           cat integration-test/package.json
-          yarn install --cwd=integration-test
-          yarn intTest
+          bun --cwd=integration-test install
+          bun run intTest

.github/workflows/npm-publish.yml

@@ -24,7 +24,12 @@ jobs:
         with:
           node-version: 18
           registry-url: https://registry.npmjs.org/
-      - run: yarn install
+      - name: Install bun
+        uses: oven-sh/setup-bun@v2
+        with:
+          bun-version: latest
+      - name: Install dependencies
+        run: bun install
       - run: npm publish --tag ${{ inputs.tag }}
         env:
           NODE_AUTH_TOKEN: ${{secrets.NPM_KEY}}

CHANGELOG.md

@@ -1,5 +1,16 @@
 # Changelog
 
+## Version 3
+
+### v3.0.0
+
+- There are no breaking changes, but the distribution build process has changed:
+  - ESM is built using [bun](https://bun.sh/);
+  - DTS is built using [bun plugin Isolated Declarations](https://github.com/ryoppippi/bun-plugin-isolated-decl)
+    that runs [oxc transformer](https://www.npmjs.com/package/oxc-transform) under the hood;
+  - CJS is built using [tsc](https://www.typescriptlang.org/docs/handbook/compiler-options.html)
+    and minified using [uglify-js](https://www.npmjs.com/package/uglify-js).
+
 ## Version 2
 
 ### v2.0.3

bunfig.toml

@@ -0,0 +1,3 @@
+[test]
+coverage = true # always enable coverage
+coverageReporter  = ["text", "lcov"]

eslint.config.js

@@ -3,25 +3,16 @@ import jsPlugin from "@eslint/js";
 import tsPlugin from "typescript-eslint";
 import prettierOverrides from "eslint-config-prettier";
 import prettierRules from "eslint-plugin-prettier/recommended";
-import unicornPlugin from "eslint-plugin-unicorn";
 import importPlugin from "eslint-plugin-import";
 
 export default [
   {
-    languageOptions: {
-      globals: {
-        ...globals.browser,
-        ...globals.node,
-      },
-    },
-    plugins: {
-      unicorn: unicornPlugin,
-      import: importPlugin,
-    },
+    languageOptions: { globals: globals.browser },
+    plugins: { import: importPlugin },
     settings: {
       // "import-x" plugin installed as "import", in order to suppress the warning from the typescript resolver
       // @link https://github.com/import-js/eslint-import-resolver-typescript/issues/293
-      "import-x/resolver": { typescript: true, node: true },
+      "import-x/resolver": { typescript: true },
     },
   },
   jsPlugin.configs.recommended,
@@ -33,7 +24,6 @@ export default [
   // Things to turn on globally
   {
     rules: {
-      "unicorn/prefer-node-protocol": "error",
       "import/named": "error",
       "import/export": "error",
       "import/no-duplicates": "warn",

integration-test/.gitignore

@@ -1,2 +1,2 @@
 package.json
-yarn.lock
+bun.lockb

integration-test/integration.spec.ts

@@ -1,6 +1,6 @@
 import type { SxProps, Theme } from "@mui/system";
 import { mergeSx } from "merge-sx";
-import { describe, test, expect } from "vitest";
+import { describe, test, expect } from "bun:test";
 
 describe("Integration", () => {
   test("mergeSx() operates SxProps", () => {

package.json

@@ -1,6 +1,6 @@
 {
   "name": "merge-sx",
-  "version": "2.0.3",
+  "version": "3.0.0-beta.2",
   "description": "Combines multiple SxProps for Material UI components.",
   "main": "dist/index.cjs",
   "module": "dist/index.js",
@@ -34,37 +34,38 @@
   },
   "license": "MIT",
   "scripts": {
-    "build": "tsup && attw --pack",
+    "build:cjs": "tsc -p tsconfig.cjs.json && uglifyjs dist/index.js -c -m -o dist/index.cjs",
+    "build": "bun run build:cjs && bun run tools/build.ts && cp dist/index.d.ts dist/index.d.cts && attw --pack",
     "lint": "eslint",
-    "test": "tsc -p tsconfig.unit.json && vitest run src --coverage",
-    "intTest": "tsc -p integration-test/tsconfig.json && vitest run -r integration-test",
+    "test": "tsc --noEmit && bun test src",
+    "intTest": "tsc -p integration-test/tsconfig.json && bun test integration-test",
     "mdfix": "prettier *.md --write",
     "postversion": "git push && git push --tags",
-    "prepublishOnly": "yarn lint && yarn test && yarn build"
+    "prepublishOnly": "bun run lint && bun run test && bun run build"
   },
   "peerDependencies": {
-    "@mui/material": "^5.1.0"
+    "@mui/material": "^5.15.17"
   },
   "devDependencies": {
-    "@arethetypeswrong/cli": "^0.15.0",
-    "@mui/system": "^5.15.0",
-    "@tsconfig/node18": "^18.2.2",
-    "@types/node": "^20.10.4",
-    "@vitest/coverage-istanbul": "^1.6.0",
+    "@arethetypeswrong/cli": "^0.15.3",
+    "@emotion/styled": "^11.11.5",
+    "@mui/system": "^5.16.0",
+    "@tsconfig/bun": "^1.0.7",
+    "@tsconfig/node18": "^18.2.4",
+    "@types/bun": "latest",
+    "bun-plugin-isolated-decl": "^0.1.1",
     "eslint": "^9.6.0",
     "eslint-config-prettier": "^9.1.0",
     "eslint-import-resolver-typescript": "^3.6.1",
-    "eslint-plugin-import": "https://registry.npmjs.org/eslint-plugin-import-x/-/eslint-plugin-import-x-0.5.2.tgz",
+    "eslint-plugin-import": "npm:eslint-plugin-import-x@^0.5.3",
     "eslint-plugin-prettier": "^5.1.3",
-    "eslint-plugin-unicorn": "^54.0.0",
-    "globals": "^15.3.0",
+    "globals": "^15.8.0",
+    "oxc-transform": "^0.17.0",
     "prettier": "3.3.2",
     "react": "^18.3.1",
-    "tsup": "^8.0.1",
-    "tsx": "^4.6.2",
-    "typescript": "^5.3.3",
+    "typescript": "^5.5.3",
     "typescript-eslint": "^8.0.0-alpha.39",
-    "vitest": "^1.6.0"
+    "uglify-js": "^3.18.0"
   },
   "resolutions": {
     "**/@typescript-eslint/utils": "=8.0.0-alpha.39"

src/index.spec.ts

@@ -1,6 +1,6 @@
 import type { SxProps, Theme } from "@mui/system";
 import { mergeSx } from "./index";
-import { describe, it, expect } from "vitest";
+import { describe, it, expect } from "bun:test";
 
 describe("mergeSx()", () => {
   describe("simple cases", () => {

tools/benchmark.bench.ts

@@ -1,4 +1,4 @@
-import { SxProps, Theme } from "@mui/system";
+import type { SxProps, Theme } from "@mui/system";
 import { mergeSx } from "../src";
 import { bench, describe } from "vitest";
 

tools/benchmark.processor.ts

@@ -1,7 +1,4 @@
-import { readFileSync } from "node:fs";
-
-const text = readFileSync("bench.json", "utf-8");
-const json = JSON.parse(text);
+const json = await Bun.file("bench.json", { type: "application/json" }).json();
 const data = json.files[0].groups[0];
 const suite = data.fullName.split(">")[1].trim();
 

tools/build.ts

@@ -0,0 +1,14 @@
+import isolatedDecl from "bun-plugin-isolated-decl";
+
+await Bun.build({
+  entrypoints: ["src/index.ts"],
+  outdir: "dist",
+  /** @link https://github.com/oven-sh/bun/issues/159 */
+  format: "esm",
+  splitting: false,
+  sourcemap: "none",
+  minify: true,
+  plugins: [isolatedDecl()],
+  target: "browser",
+  external: ["*"],
+});

tsconfig.cjs.json

@@ -0,0 +1,11 @@
+{
+  "extends": "@tsconfig/node18/tsconfig.json",
+  "compilerOptions": {
+    "outDir": "dist",
+    "module": "commonjs",
+    "moduleResolution": "node",
+    "target": "ES6",
+    "removeComments": true
+  },
+  "include": ["src/index.ts"]
+}

tsconfig.json

@@ -1,10 +1,5 @@
 {
-  "extends": "@tsconfig/node18/tsconfig.json",
-  "compilerOptions": {
-    "strict": true,
-    "target": "ES6",
-    "module": "ES2022",
-    "moduleResolution": "Bundler",
-    "skipLibCheck": true
-  }
+  "extends": "@tsconfig/bun/tsconfig.json",
+  "compilerOptions": {},
+  "include": ["src"]
 }