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Re: Emacs can't capture fzf output in Windows 10
From: |
Eli Zaretskii |
Subject: |
Re: Emacs can't capture fzf output in Windows 10 |
Date: |
Mon, 02 Mar 2020 10:42:54 +0200 |
> From: "Shuguang Sun" <shuguang79@qq.com>
> Date: Mon, 2 Mar 2020 12:25:48 +0800
>
> I'm trying to use fzf (junegunn/fzf) in windows, however it seems emacs can't
> capture the output of fzf.
>
>
> Example: fzf with -filter will be in filter mode and do not start
> interactive finder.
>
> - In shell (cmd): "fzf.exe --filter=tmp" will not exit
> - In shell (cmd): "fzf.exe --filter=tmp > aa.txt" will not exit
>
> - (call-process "cmd.exe" nil t nil "/C" "start" "fzf" "--filter=tmp") will
> give a flash window (with list of findings) and print 0 in emacs.
>
> - (shell-command "fzf --filter=tmp") will lead to a message (Shell command
> failed with code 1 and no output)
> - (shell-command-to-string "fzf --filter=tmp") give a empty string
>
>
> However if I run "fzf --filter=tmp" in the CMD box it will provide a list of
> finding, and "fzf --filter=tmp > aa.txt" will print the findings to file
> aa.txt.
>
>
> It can't run fzf in interactive mode as I understand there is no true term
> for emacs in windows but why it can't be run in filter mode?
It looks like fzf uses direct screen I/O? If so, this won't work on
Windows when stdout is a pipe, which is what happens when Emacs on
Windows runs a subprocess.
I suggest to open an issue with fzf, and ask there whether it can run
with pipes as stdin/stdout.