fix: run dlx in the root of Windows drive (#7264)

close #7263

.changeset/honest-foxes-own.md

@@ -0,0 +1,7 @@
+---
+"@pnpm/plugin-commands-script-runners": patch
+"@pnpm/store-path": patch
+"pnpm": patch
+---
+
+Fix issue when trying to use `pnpm dlx` in the root of a Windows Drive [#7263](https://github.com/pnpm/pnpm/issues/7263).

exec/plugin-commands-script-runners/test/dlx.e2e.ts

@@ -4,6 +4,8 @@ import { dlx } from '@pnpm/plugin-commands-script-runners'
 import { prepareEmpty } from '@pnpm/prepare'
 import { DLX_DEFAULT_OPTS as DEFAULT_OPTS } from './utils'
 
+const testOnWindowsOnly = process.platform === 'win32' ? test : test.skip
+
 test('dlx', async () => {
   prepareEmpty()
 
@@ -121,3 +123,13 @@ test('dlx should return a non-zero exit code when the underlying script fails',
 
   expect(exitCode).toBe(1)
 })
+
+testOnWindowsOnly('dlx should work when running in the root of a Windows Drive', async () => {
+  prepareEmpty()
+
+  await dlx.handler({
+    ...DEFAULT_OPTS,
+    dir: 'C:\\',
+    storeDir: path.resolve('store'),
+  }, ['cowsay', 'hello'])
+})

store/store-path/src/index.ts

@@ -40,7 +40,7 @@ export function getStorePath (
 
 async function storePathRelativeToHome (pkgRoot: string, relStore: string, homedir: string) {
   const tempFile = pathTemp(pkgRoot)
-  await fs.mkdir(path.dirname(tempFile), { recursive: true })
+  if (path.parse(pkgRoot).root !== pkgRoot) await fs.mkdir(path.dirname(tempFile), { recursive: true })
   await touch(tempFile)
   const storeInHomeDir = path.join(homedir, relStore, STORE_VERSION)
   if (await canLinkToSubdir(tempFile, homedir)) {