hg_prompt does not handle directories that contain "\n". #11348
Description
My Fish Shell version is 4.0.1
OS: Linux ga 6.13.8-zen1-1-zen #1 ZEN SMP PREEMPT_DYNAMIC Sun, 23 Mar 2025 17:17:17 +0000 x86_64 GNU/Linux
(Arch Linux)
echo $TERM: xterm-256color
(The bug will occur both in code-oss and konsole. )
The problem still persists after using the command sh -c 'env HOME=$(mktemp -d) XDG_CONFIG_HOME= XDG_DATA_DIRS= fish'.
Enter the following commands to reproduce the bug:
mkdir a\nb
cd a\nbThis will cause the path displayed in the command prompt to be abnormal, and the following error message will pop up every time a command is executed:
test: Expected a combining operator like '-a' at index 2
/tmp/tmp.AsVCpNwERk/a b != /
^
/usr/share/fish/functions/fish_print_hg_root.fish (line 13):
while test $dir != /
^
in function 'fish_print_hg_root'
called on line 1 of file /usr/share/fish/functions/fish_hg_prompt.fish
in command substitution
called on line 30 of file /usr/share/fish/functions/fish_hg_prompt.fish
in function 'fish_hg_prompt'
called on line 5 of file /usr/share/fish/functions/fish_vcs_prompt.fish
in function 'fish_vcs_prompt'
called on line 1 of file /usr/share/fish/functions/fish_prompt.fish
in command substitution
called on line 33 of file /usr/share/fish/functions/fish_prompt.fish
in function 'fish_prompt'
in command substitution