/usr/share/fish/functions/prompt_pwd.fish is in fish-common 2.4.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | function prompt_pwd --description "Print the current working directory, shortened to fit the prompt"
set -q argv[1]; and switch $argv[1]
case -h --help
__fish_print_help prompt_pwd
return 0
end
# This allows overriding fish_prompt_pwd_dir_length from the outside (global or universal) without leaking it
set -q fish_prompt_pwd_dir_length; or set -l fish_prompt_pwd_dir_length 1
# Replace $HOME with "~"
set realhome ~
set -l tmp (string replace -r '^'"$realhome"'($|/)' '~$1' $PWD)
if [ $fish_prompt_pwd_dir_length -eq 0 ]
echo $tmp
else
# Shorten to at most $fish_prompt_pwd_dir_length characters per directory
string replace -ar '(\.?[^/]{'"$fish_prompt_pwd_dir_length"'})[^/]*/' '$1/' $tmp
end
end
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