Add Bun Support to manypkg (#254)

cjkihl · web-flow · commit 2c06ac09397b · 2025-07-25T13:45:09.000+10:00
diff --git a/.changeset/ten-moose-clean.md b/.changeset/ten-moose-clean.md
@@ -0,0 +1,8 @@
+---
+"@manypkg/get-packages": minor
+"@manypkg/find-root": minor
+"@manypkg/tools": minor
+"@manypkg/cli": minor
+---
+
+Add Bun support
diff --git a/README.md b/README.md
@@ -22,7 +22,7 @@
 
 # Manypkg
 
-Manypkg is a linter for `package.json` files in Yarn, npm or pnpm monorepos.
+Manypkg is a linter for `package.json` files in Yarn, npm, pnpm, Bun or Lerna monorepos.
 
 ## Install
 
diff --git a/__fixtures__/basic-bun-json-lock/bun.lock b/__fixtures__/basic-bun-json-lock/bun.lock
@@ -0,0 +1,4 @@
+{
+  "version": "lockfile/5",
+  "lockfile": {}
+} 
diff --git a/__fixtures__/basic-bun-json-lock/package.json b/__fixtures__/basic-bun-json-lock/package.json
@@ -0,0 +1,8 @@
+{
+  "name": "basic-bun-json-lock",
+  "version": "1.0.0",
+  "private": true,
+  "workspaces": [
+    "packages/*"
+  ]
+} 
diff --git a/__fixtures__/basic-bun-json-lock/packages/package-one/package.json b/__fixtures__/basic-bun-json-lock/packages/package-one/package.json
@@ -0,0 +1,5 @@
+{
+  "name": "basic-bun-json-lock-package-one",
+  "version": "1.0.0",
+  "main": "src/index.js"
+} 
diff --git a/__fixtures__/basic-bun-json-lock/packages/package-one/src/index.js b/__fixtures__/basic-bun-json-lock/packages/package-one/src/index.js
@@ -0,0 +1 @@
+module.exports = "package-one"; 
diff --git a/__fixtures__/basic-bun/bun.lockb b/__fixtures__/basic-bun/bun.lockb
@@ -0,0 +1 @@
+# This is a placeholder bun.lockb file for testing purposes 
diff --git a/__fixtures__/basic-bun/package.json b/__fixtures__/basic-bun/package.json
@@ -0,0 +1,8 @@
+{
+  "name": "basic-bun",
+  "version": "1.0.0",
+  "private": true,
+  "workspaces": [
+    "packages/*"
+  ]
+} 
diff --git a/__fixtures__/basic-bun/packages/package-one/package.json b/__fixtures__/basic-bun/packages/package-one/package.json
@@ -0,0 +1,5 @@
+{
+  "name": "basic-bun-package-one",
+  "version": "1.0.0",
+  "main": "src/index.js"
+} 
diff --git a/__fixtures__/basic-bun/packages/package-one/src/index.js b/__fixtures__/basic-bun/packages/package-one/src/index.js
@@ -0,0 +1 @@
+module.exports = "package-one"; 
diff --git a/__fixtures__/bun-no-lock/package.json b/__fixtures__/bun-no-lock/package.json
@@ -0,0 +1,8 @@
+{
+  "name": "bun-no-lock",
+  "version": "1.0.0",
+  "private": true,
+  "workspaces": [
+    "packages/*"
+  ]
+} 
diff --git a/__fixtures__/bun-no-lock/packages/package-one/package.json b/__fixtures__/bun-no-lock/packages/package-one/package.json
@@ -0,0 +1,5 @@
+{
+  "name": "bun-no-lock-package-one",
+  "version": "1.0.0",
+  "main": "src/index.js"
+} 
diff --git a/__fixtures__/bun-workspace-base/bun.lockb b/__fixtures__/bun-workspace-base/bun.lockb
@@ -0,0 +1 @@
+# This is a placeholder bun.lockb file for testing purposes 
diff --git a/__fixtures__/bun-workspace-base/package.json b/__fixtures__/bun-workspace-base/package.json
@@ -0,0 +1,8 @@
+{
+  "name": "bun-workspace-base",
+  "version": "1.0.0",
+  "private": true,
+  "workspaces": [
+    "packages/*"
+  ]
+} 
diff --git a/__fixtures__/bun-workspace-base/packages/pkg-a/package.json b/__fixtures__/bun-workspace-base/packages/pkg-a/package.json
@@ -0,0 +1,5 @@
+{
+  "name": "bun-workspace-base-pkg-a",
+  "version": "1.0.0",
+  "main": "src/index.js"
+} 
diff --git a/__fixtures__/bun-workspace-base/packages/pkg-b/package.json b/__fixtures__/bun-workspace-base/packages/pkg-b/package.json
@@ -0,0 +1,5 @@
+{
+  "name": "bun-workspace-base-pkg-b",
+  "version": "1.0.0",
+  "main": "src/index.js"
+} 
diff --git a/packages/cli/README.md b/packages/cli/README.md
@@ -1,6 +1,6 @@
 # Manypkg
 
-Manypkg is a linter for `package.json` files in Yarn, npm, Lerna, pnpm or Rush monorepos.
+Manypkg is a linter for `package.json` files in Yarn, npm, Lerna, pnpm, Bun or Rush monorepos.
 
 ## Install
 
diff --git a/packages/cli/src/utils.ts b/packages/cli/src/utils.ts
@@ -16,6 +16,7 @@ export async function writePackage(pkg: Package) {
 
 export async function install(toolType: string, cwd: string) {
   const cliRunners: Record<string, string> = {
+    bun: "bun",
     lerna: "lerna",
     npm: "npm",
     pnpm: "pnpm",
@@ -26,7 +27,7 @@ export async function install(toolType: string, cwd: string) {
 
   await exec(
     cliRunners[toolType],
-    toolType === "npm" || toolType === "pnpm"
+    toolType === "npm" || toolType === "pnpm" || toolType === "bun"
       ? ["install"]
       : toolType === "lerna"
         ? ["bootstrap", "--since", "HEAD"]
diff --git a/packages/find-root/README.md b/packages/find-root/README.md
@@ -1,6 +1,6 @@
 # @manypkg/find-root
 
-> Find the root of a monorepo with Yarn workspaces, npm, Lerna, pnpm or Rush
+> Find the root of a monorepo with Yarn workspaces, npm, Lerna, pnpm, Bun or Rush
 
 ## Install
 
diff --git a/packages/find-root/src/index.test.ts b/packages/find-root/src/index.test.ts
@@ -4,6 +4,7 @@ import path from "node:path";
 import { findRoot, findRootSync } from "./index.ts";
 
 import {
+  BunTool,
   LernaTool,
   NpmTool,
   PnpmTool,
@@ -74,6 +75,40 @@ const runTests = (findRoot: FindRoot) => {
     });
   });
 
+  test("it returns the root of a bun monorepo", async () => {
+    let tmpPath = f.copy("basic-bun");
+    let monorepoRoot = await findRoot(
+      path.join(tmpPath, "packages", "package-one", "src")
+    );
+    expect(monorepoRoot).toEqual({
+      tool: BunTool.type,
+      rootDir: tmpPath,
+    });
+  });
+
+  test("it returns the root of a bun monorepo with JSON lock file", async () => {
+    let tmpPath = f.copy("basic-bun-json-lock");
+    let monorepoRoot = await findRoot(
+      path.join(tmpPath, "packages", "package-one", "src")
+    );
+    expect(monorepoRoot).toEqual({
+      tool: BunTool.type,
+      rootDir: tmpPath,
+    });
+  });
+
+  test("it does not detect bun monorepo without lock file", async () => {
+    let tmpPath = f.copy("bun-no-lock");
+    let monorepoRoot = await findRoot(
+      path.join(tmpPath, "packages", "package-one", "src")
+    );
+    // Should be detected as a root tool since it has workspaces but no lock file
+    expect(monorepoRoot).toEqual({
+      tool: RootTool.type,
+      rootDir: path.join(tmpPath, "packages", "package-one"),
+    });
+  });
+
   test("it returns the root of a single-package repo", async () => {
     let tmpPath = f.copy("single-pkg");
     let monorepoRoot = await findRoot(path.join(tmpPath, "src"));
diff --git a/packages/find-root/src/index.ts b/packages/find-root/src/index.ts
@@ -1,4 +1,5 @@
 import {
+  BunTool,
   LernaTool,
   NpmTool,
   PnpmTool,
@@ -23,6 +24,7 @@ export const DEFAULT_TOOLS: Tool[] = [
   YarnTool,
   PnpmTool,
   NpmTool,
+  BunTool,
   LernaTool,
   RushTool,
   RootTool,
diff --git a/packages/get-packages/README.md b/packages/get-packages/README.md
@@ -1,8 +1,8 @@
 # @manypkg/get-packages
 
-> A simple utility to get the packages from a monorepo, whether they're using Yarn, npm, Lerna, pnpm or Rush
+> A simple utility to get the packages from a monorepo, whether they're using Yarn, npm, Lerna, pnpm, Bun or Rush
 
-This library exports `getPackages` and `getPackagesSync`. It is intended mostly for use of developers building tools that want to support different kinds of monorepos as an easy way to write tools without having to write tool-specific code. It supports Yarn, npm, Lerna, pnpm, Rush and single-package repos(where the only package is the the same as the root package). This library uses `@manypkg/find-root` to search up from the directory that's passed to `getPackages` or `getPackagesSync` to find the project root.
+This library exports `getPackages` and `getPackagesSync`. It is intended mostly for use of developers building tools that want to support different kinds of monorepos as an easy way to write tools without having to write tool-specific code. It supports Yarn, npm, Lerna, pnpm, Bun, Rush and single-package repos(where the only package is the the same as the root package). This library uses `@manypkg/find-root` to search up from the directory that's passed to `getPackages` or `getPackagesSync` to find the project root.
 
 ```typescript
 import { getPackages, getPackagesSync } from "@manypkg/get-packages";
diff --git a/packages/get-packages/src/index.test.ts b/packages/get-packages/src/index.test.ts
@@ -101,6 +101,46 @@ let runTests = (getPackages: GetPackages) => {
     expect(allPackages.tool.type).toEqual("pnpm");
   });
 
+  it("should resolve workspaces for bun", async () => {
+    const dir = f.copy("bun-workspace-base");
+
+    // Test for both root and subdirectories
+    for (const location of [".", "packages", "packages/pkg-a"]) {
+      const allPackages = await getPackages(path.join(dir, location));
+
+      if (allPackages.packages === null) {
+        return expect(allPackages.packages).not.toBeNull();
+      }
+
+      expect(allPackages.packages[0].packageJson.name).toEqual(
+        "bun-workspace-base-pkg-a"
+      );
+      expect(allPackages.packages[1].packageJson.name).toEqual(
+        "bun-workspace-base-pkg-b"
+      );
+      expect(allPackages.tool.type).toEqual("bun");
+    }
+  });
+
+  it("should resolve workspaces for bun with JSON lock file", async () => {
+    const dir = f.copy("basic-bun-json-lock");
+
+    // Test for both root and subdirectories
+    for (const location of [".", "packages", "packages/package-one"]) {
+      const allPackages = await getPackages(path.join(dir, location));
+
+      if (allPackages.packages === null) {
+        return expect(allPackages.packages).not.toBeNull();
+      }
+
+      expect(allPackages.packages[0].packageJson.name).toEqual(
+        "basic-bun-json-lock-package-one"
+      );
+      expect(allPackages.packages).toHaveLength(1);
+      expect(allPackages.tool.type).toEqual("bun");
+    }
+  });
+
   it("should resolve workspaces for lerna", async () => {
     const dir = f.copy("lerna-workspace-base");
 
diff --git a/packages/tools/src/BunTool.ts b/packages/tools/src/BunTool.ts
diff --git a/packages/tools/src/index.ts b/packages/tools/src/index.ts

-Original file line number
+Diff line change
@@ @@ -0,0 +1,4 @@ @@
 +{
 +  "version": "lockfile/5",
 +  "lockfile": {}
 +}
Original file line number	Diff line number	Diff line change
`@@ -0,0 +1 @@`
	`1`	`+# This is a placeholder bun.lockb file for testing purposes`