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fish: adjust prompt when inside a nix-shell

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John Bowdre 2024-02-26 16:24:58 -06:00
parent b3dd7c3419
commit 02c6176387
1 changed files with 38 additions and 0 deletions
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38
home/features/cli/fish.nix
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@ -27,6 +27,44 @@
functions = { functions = {
# Disable greeting # Disable greeting
fish_greeting = ""; fish_greeting = "";
fish_prompt = ''
set -l last_pipestatus $pipestatus
set -lx __fish_last_status $status # Export for __fish_print_pipestatus.
set -l normal (set_color normal)
set -q fish_color_status
or set -g fish_color_status red
# Detect if we're in a nix-shell
set -l nix_shell_info (
if test -n "$IN_NIX_SHELL"
echo -n "[nix-shell] "
end
)
# Color the prompt differently when we're root
set -l color_cwd $fish_color_cwd
set -l suffix '>'
if functions -q fish_is_root_user; and fish_is_root_user
if set -q fish_color_cwd_root
set color_cwd $fish_color_cwd_root
end
set suffix '#'
end
# Write pipestatus
# If the status was carried over (if no command is issued or if `set` leaves the status untouched), don't bold it.
set -l bold_flag --bold
set -q __fish_prompt_status_generation; or set -g __fish_prompt_status_generation $status_generation
if test $__fish_prompt_status_generation = $status_generation
set bold_flag
end
set __fish_prompt_status_generation $status_generation
set -l status_color (set_color $fish_color_status)
set -l statusb_color (set_color $bold_flag $fish_color_status)
set -l prompt_status (__fish_print_pipestatus "[" "]" "|" "$status_color" "$statusb_color" $last_pipestatus)
echo -n -s (prompt_login)' ' (set_color $color_cwd) (prompt_pwd) $normal (fish_vcs_prompt) $normal " "$nix_shell_info $prompt_status $suffix " "
'';
ssh = "TERM=xterm command ssh $argv"; ssh = "TERM=xterm command ssh $argv";
# Rebuild home-manager # Rebuild home-manager
switch-home = "home-manager switch -b backup --flake ${config.home.homeDirectory}/.dotfiles#$USER@$(hostname -s)"; switch-home = "home-manager switch -b backup --flake ${config.home.homeDirectory}/.dotfiles#$USER@$(hostname -s)";