FindHelperBinary should support windows

[arixmkii]

Current implementation https://github.com/containers/common/blob/main/pkg/config/config.go#L1254 is oversimplified, when looking up binaries in the preconfigured paths. It should better match behavior of exec.LookPath which has dedicated

• windows version
• unix version

The main problem, that on windows you should try to look for files with various executable marking extensions in name. Current workaround is to provide full name with ".exe" for the lookup in windows specific paths, but it doesn't fix the root cause.

My proposal would be to take and modify for this specific need Go lang versions if there are no problems with licensing (haven't checked it yet).

If it is fine forking and including some sources from Go itself into this project, I can try making PR.

Was discovered making experiments with podman and qemu on windows: containers/podman#13006

[arixmkii]

Another workaround is to rename gvproxy.exe to gvproxy (w/o extension on win machine). But it is better to have this fixed anyway.

[rhatdan]

Ok will you be preparing a patch?

[arixmkii]

Will do it this week.