🐛 BUG: [pages + windows] Could not automatically determine proxy port

[Skye-31]

What version of Wrangler are you using?

2.0.24

What operating system are you using?

Windows

Describe the Bug

This specifically occurs when the directory which wrangler is being run in is in a different disk than the directory that netstat is located.

For example, in this case, netstat is located on my C: drive, whereas my code is located on my F: drive. It incorrectly searches the F drive for the file, which does not exist. Creating a symlink or copying the executable into the correct path does resolve this for me, however that's obviously not a real solution.

🚧 'wrangler pages <command>' is a beta command. Please report any issues to https:/cloudflare/wrangler2/issues/new/choose
Running npm run dev...
Sleeping 5 seconds to allow proxy process to start before attempting to automatically determine port...
To skip, specify the proxy port with --proxy.
[proxy]: 
> [email protected] dev
> svelte-kit dev --host


No Instance(s) Available.
The system cannot find the path specified.
X [ERROR] Error scanning for ports of process with PID 5252: Error: Command failed: \windows\system32\netstat.exe -nao

  The system cannot find the path specified

[Skye-31]

Found this which may be of use? https:/balena-io-modules/drivelist, as it includes which is the system drive (where netstat is located)
I imagine this issue may actually be present across all operating systems, but have no way of testing currently.

[WalshyDev]

Ok, so the issue for this lies here:
https:/cloudflare/wrangler2/blob/d4fbd0be5f5801c331a76709cb375a9386117361/packages/wrangler/src/pages/dev.tsx#L322

Looks like Wrangler already has logic to see if a port is in use and wait for it to be available/error. We may be best just using this logic:
https:/cloudflare/wrangler2/blob/d4fbd0be5f5801c331a76709cb375a9386117361/packages/wrangler/src/proxy.ts#L420

Looks like this would have correctly errored for the port in use here.

[Skye-31]

The purpose of this is to automatically determine which port to proxy, not to check if a port has been proxied