cuckoo-miner When mining plugins do not build, this does not generate a build error

I tried building grin-miner on Ubuntu 18.04.1 on WSL. This appears to work, with a message "Compiling cuckoo_miner v0.1.0 (https://github.com/mimblewimble/cuckoo-miner?tag=grin_integration_34#c2988598)" during build and no errors. However, the target/debug/plugins directory is missing plugins, although cuckoo_miner is present in target/debug/build.

I'd expect a build-time error message when plugins fail to build.

This appears related to the Windows detection in build.rs. Although WSL is an Ubuntu environment and should be treated as Linux, the $PATH contains the Windows %PATH% as well, which means Finder will find .exe files.

Aug 08 '18 07:08 thorsteneb

To remove the Windows PATH from WSL, open regedit and set "Flags" to 0x5 for this key:

Computer\HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Lxss

The next time you run 'echo $PATH' in WSL, all the windows stuff will be gone. Run 'cargo build' again, and you're back in business.

Sep 10 '18 03:09 danielalexiuc

There are plenty of workarounds for the $PATH in WSL. My expectation is three-fold:

grin-miner should show an error message in tui when a configured plugin is missing, so the user can act on that information
build should show an error message when plugins fail to build, instead of merrily continuing on
detection of "we're on Windows" should be done by something like #if defined __WIN32__, not "can we see an .exe in the $PATH"

Sep 13 '18 08:09 thorsteneb