Neovim is not recognized as a unix app

[tunaflsh]

Description / Steps to reproduce the issue

1. As such environment variables are automatically converted to Windows style. In particular MANPATH=C:\msys64\mingw64\local\man;... which breaks the man plugin. This results in :Man man reporting "no manual entry for man"
2. Default values for 'shell', 'shellxquote', 'shellcmdflag' options are incompatible with each other:

shell='C:\msys64\usr\bin\bash.exe'
shellxquote='"'
shellcmdflag='/s /c'  # these are cmd.exe flags

3. 'shelltemp' is set and an external command :!cmd requires a temp file, the error "E485: Can't read file" occurs.

Expected behavior

1. MANPATH stays unix style.
2. Neovim recognizes has('unix') and sets the flags properly
3. The file can be read.

Actual behavior

See description.

Verification

• I have verified that my MSYS2 is up-to-date before submitting the report (see https://www.msys2.org/docs/updating/)

Windows Version

MINGW64_NT-10.0-26100

MINGW environments affected

• MINGW64
• MINGW32
• UCRT64
• CLANG64
• CLANGARM64

Are you willing to submit a PR?

No response

[tunaflsh]

There are workarounds for each case:

1. export MSYS2_ENV_CONV_EXCL=MANPATH from https://www.msys2.org/docs/filesystem-paths/
2. and 3. This case is related to #16301. In init.lua (or vimrc):

vim.o.shell = 'bash'       -- or in vimrc:  set shell=bash
vim.o.shellcmdflag = '-c'  --               set shellcmdflag=-c
vim.o.shellxquote = ''     --               set shellxquote=
vim.o.shellquote = ''      --               set shellquote=
vim.o.shelltemp = false    --               set noshelltemp

-- or

vim.o.shell = 'cmd /s /c bash'
vim.o.shellcmdflag = '-c'
vim.o.shellxquote = ''
vim.o.shellquote = ''
vim.o.shelltemp = true

[Kreijstal]

that's because neovim is not a unix app, but a windows one, there is no package neovim, there is mingw-w64-x86_64-neovim, there is vim, which is a msys2/cygwin true unix.

[tunaflsh]

I was using vim up until now, but decided to switch to neovim for performance benefits. Could there be a cygwin version of neovim?

[Kreijstal]

I was using vim up until now, but decided to switch to neovim for performance benefits. Could there be a cygwin version of neovim?

I accept your PR https://github.com/Kreijstal/msys2-ur, since it will never be accepted on msys2