feat(which-pm): add bun support (#188)

* which-pm: add bun support

* remove unneeded files

.gitignore

@@ -5,6 +5,7 @@ npm-debug.log*
 
 # Dependency directory
 node_modules
+bun.lockb
 
 # Coverage directory used by tools like istanbul
 coverage

which-pm/index.d.ts

@@ -1,7 +1,7 @@
 declare function whichpm (pkgPath: string): Promise<whichpm.Result>
 
 declare namespace whichpm {
-  type Result = NPM | YARN | PNPM | Other
+  type Result = NPM | YARN | PNPM | BUN | Other
 
   interface NPM {
     readonly name: 'npm'
@@ -16,6 +16,10 @@ declare namespace whichpm {
     readonly version: string
   }
 
+  interface BUN {
+    readonly name: 'bun'
+  }
+
   interface Other {
     readonly name: string
     readonly version?: string

which-pm/index.js

@@ -8,6 +8,8 @@ module.exports = async function (pkgPath) {
   const exists = await pathExists(path.join(modulesPath, '.yarn-integrity'))
   if (exists) return { name: 'yarn' }
 
+  if (await pathExists(path.join(pkgPath, 'bun.lockb'))) return { name: 'bun' }
+
   try {
     const modules = await loadYamlFile(path.join(modulesPath, '.modules.yaml'))
     return toNameAndVersion(modules.packageManager)

which-pm/package.json

@@ -21,6 +21,7 @@
   "keywords": [
     "npm",
     "pnpm",
+    "bun",
     "yarn"
   ],
   "author": "Zoltan Kochan",

which-pm/test/fixtures/bun/package.json

@@ -0,0 +1,11 @@
+{
+  "name": "bun",
+  "module": "index.ts",
+  "type": "module",
+  "devDependencies": {
+    "@types/bun": "latest"
+  },
+  "peerDependencies": {
+    "typescript": "^5.0.0"
+  }
+}

which-pm/test/index.js

@@ -23,6 +23,12 @@ test('identifies yarn installation', async t => {
   t.end()
 })
 
+test('identifies bun installation', async t => {
+  const pm = await whichpm(path.join(fixturesDir, 'bun'))
+  t.deepEqual(pm, { name: 'bun' })
+  t.end()
+})
+
 test('identifies npm installation', async t => {
   const pm = await whichpm(path.join(fixturesDir, 'npm'))
   t.deepEqual(pm, { name: 'npm' })