msys2 fish-shell invoke cmd error

[wolfand11]

fish version 3.5.0

when i invoke pyenv command with msys2 fish shell, it's always "Microsoft Windows ......". when i invoke pyenv with msys bash shell it's ok!

Finally, i find that invoke cmd command with msys2 fish shell always results "Microsoft Windows ......"

[faho]

The msys fish package is at version 3.5.1-2, not 3.5.0. You probably upgraded the rest of your system but not fish. Upgrade fish as well.

This is plausible because the error you are getting is

cygheap base mismatch detected
This problem is probably due to using incompatible versions of the cygwin DLL

So it looks like fish is looking for the wrong DLL.

If you compiled fish yourself, you'll need to recompile it.

[wolfand11]

@faho thanks for your response.

i upgrade my msys. and then upgrade fish use below command:

pacman -S fish

but, it's not work.

[faho]

cmd is not a fish thing, it's a windows command. Fish simply executes it and gives it its arguments.

You probably want cmd /c test.bat (no "./", or it'll be confused).

[wolfand11]

@faho i find a same problem. #6257

i need add some package to support bat ?

[faho]

If cmd /c test.bat fails, you'll want to ask a cygwin person.

The reason running ./test.bat fails is because fish checks if the file is executable before running it and your system tells us it isn't - bash handles this differently by just blindly running it, and it has special handling for cygwin to run bat files, we don't. Googling said this worked by automatically running cmd /c foo.bat if executing failed (similar to how we run /bin/sh), if that's not it I am out of ideas.

I'm going to have to send you to the msys/cygwin people.

[wolfand11]

@faho the problem is solved!

replace 'cmd /c "pyenv --version" ' with 'cmd //c "pyenv --version" '

• https://superuser.com/questions/526736/how-to-run-internal-cmd-command-from-the-msys-shell