bun.list: Strip ansi codes from stdout.

package.json

@@ -84,6 +84,7 @@
     "semver-utils": "^1.1.4",
     "source-map-support": "^0.5.21",
     "spawn-please": "^2.0.1",
+    "strip-ansi": "^7.1.0",
     "strip-json-comments": "^5.0.1",
     "untildify": "^4.0.0",
     "update-notifier": "^6.0.2"
@@ -138,7 +139,6 @@
     "prettier": "^2.8.8",
     "should": "^13.2.3",
     "sinon": "^15.2.0",
-    "strip-ansi": "^7.1.0",
     "ts-node": "^10.9.1",
     "typescript": "5.1.6",
     "typescript-json-schema": "0.59.0",

src/package-managers/bun.ts

@@ -32,20 +32,31 @@ async function spawnBun(
  * (Bun) Fetches the list of all installed packages.
  */
 export const list = async (options: Options = {}): Promise<Index<string | undefined>> => {
+  const { default: stripAnsi } = await import('strip-ansi')
+
+  // bun pm ls
   const stdout = await spawnBun(
     ['pm', 'ls'],
     {
       ...(options.global ? { location: 'global' } : null),
       ...(options.prefix ? { prefix: options.prefix } : null),
     },
     {
+      env: {
+        ...process.env,
+        // Disable color to ensure the output is parsed correctly.
+        // However, this may be ineffective in some environments (see stripAnsi below).
+        // https://bun.sh/docs/runtime/configuration#environment-variables
+        NO_COLOR: '1',
+      },
       ...(options.cwd ? { cwd: options.cwd } : null),
       rejectOnError: false,
     },
   )
 
-  // parse the output of `bun pm ls` into an object { [name]: version }.
-  const lines = stdout.split('\n')
+  // Parse the output of `bun pm ls` into an object { [name]: version }.
+  // When bun is spawned in the GitHub Actions environment, it outputs ANSI color. Unfortunately, it does not respect the `NO_COLOR` envirionment variable. Therefore, we have to manually strip ansi.
+  const lines = stripAnsi(stdout).split('\n')
   const dependencies = keyValueBy(lines, line => {
     const match = line.match(/.* (.*?)@(.+)/)
     if (match) {

test/package-managers/bun/index.test.ts

@@ -11,11 +11,10 @@ chai.use(chaiString)
 process.env.NCU_TESTS = 'true'
 
 // Bun not yet supported on Windows
-const describeSkipWindows = os.platform() === 'win32' ? describe.skip : describe
+const describeSkipWindows = os.platform() === 'win32' ? describe.skip : describe.only
 describeSkipWindows('bun', function () {
   it('list', async () => {
     const result = await bun.list({ cwd: __dirname })
-    console.log({ result })
     result.should.have.property('ncu-test-v2')
   })