{ pkgs, lib, config, ... }: let inherit (lib) mkIf; hasPackage = pname: lib.any (p: p ? pname && p.pname == pname) config.home.packages; hasRipgrep = hasPackage "ripgrep"; hasEza = hasPackage "eza"; hasNeovim = config.programs.neovim.enable; hasEmacs = config.programs.emacs.enable; hasNeomutt = config.programs.neomutt.enable; hasShellColor = if builtins.hasAttr "shellcolor" config.programs then config.programs.shellcolor.enable else false; hasKitty = config.programs.kitty.enable; shellcolor = "${pkgs.shellcolord}/bin/shellcolor"; in { programs.fish = { enable = true; shellAbbrs = rec { jqless = "jq -C | less -r"; n = "nix"; nd = "nix develop -c $SHELL"; ns = "nix shell"; nsn = "nix shell nixpkgs#"; nb = "nix build"; nbn = "nix build nixpkgs#"; nf = "nix flake"; nr = "nixos-rebuild --flake ."; nrs = "nixos-rebuild --flake . switch"; snr = "sudo nixos-rebuild --flake ."; snrs = "sudo nixos-rebuild --flake . switch"; hm = "home-manager --flake ."; hms = "home-manager -b bkup --flake .gburd@$(hostname) switch"; nh-ask = "nix run github:viperML/nh -- os switch --ask --nom ."; ls = mkIf hasEza "eza"; exa = mkIf hasEza "eza"; e = mkIf hasEmacs "emacsclient -t"; vrg = mkIf (hasNeomutt && hasRipgrep) "nvimrg"; vim = mkIf hasNeovim "nvim"; vi = vim; v = vim; mutt = mkIf hasNeomutt "neomutt"; m = mutt; locate = "plocate"; cik = mkIf hasKitty "clone-in-kitty --type os-window"; ck = cik; }; shellAliases = { # Clear screen and scrollback clear = "printf '\\033[2J\\033[3J\\033[1;1H'"; }; functions = { # Disable greeting fish_greeting = ""; # Grep using ripgrep and pass to nvim nvimrg = mkIf (hasNeomutt && hasRipgrep) "nvim -q (rg --vimgrep $argv | psub)"; # Integrate ssh with shellcolord ssh = mkIf hasShellColor '' ${shellcolor} disable $fish_pid # Check if kitty is available if set -q KITTY_PID && set -q KITTY_WINDOW_ID && type -q -f kitty kitty +kitten ssh $argv else command ssh $argv end ${shellcolor} enable $fish_pid ${shellcolor} apply $fish_pid ''; }; interactiveShellInit = # Open command buffer in vim when alt+e is pressed '' bind \ee edit_command_buffer '' + # kitty integration '' set --global KITTY_INSTALLATION_DIR "${pkgs.kitty}/lib/kitty" set --global KITTY_SHELL_INTEGRATION enabled source "$KITTY_INSTALLATION_DIR/shell-integration/fish/vendor_conf.d/kitty-shell-integration.fish" set --prepend fish_complete_path "$KITTY_INSTALLATION_DIR/shell-integration/fish/vendor_completions.d" '' + # Use Emacs bindings and cursors # https://gist.githubusercontent.com/zuigon/8852793/raw/770d705897112a870adc2b27d056a61892aa3a9a/keybindings.fish '' function fish_default_key_bindings -d "Default (Emacs-like) key bindings for fish" # Clear earlier bindings, if any bind --erase --all # This is the default binding, i.e. the one used if no other binding matches bind "" self-insert bind \n execute bind \ck kill-line bind \cy yank bind \t complete bind \e\n "commandline -i \n" bind \e\[A up-or-search bind \e\[B down-or-search bind -k down down-or-search bind -k up up-or-search bind \e\[C forward-char bind \e\[D backward-char bind -k right forward-char bind -k left backward-char bind -k dc delete-char bind -k backspace backward-delete-char bind \x7f backward-delete-char bind \e\[H beginning-of-line bind \e\[F end-of-line # for PuTTY # https://github.com/fish-shell/fish-shell/issues/180 bind \e\[1~ beginning-of-line bind \e\[3~ delete-char bind \e\[4~ end-of-line # OS X SnowLeopard doesn't have these keys. Don't show an annoying error message. bind -k home beginning-of-line 2> /dev/null bind -k end end-of-line 2> /dev/null bind \e\[3\;2~ backward-delete-char # Mavericks Terminal.app shift-delete bind \e\eOC nextd-or-forward-word bind \e\eOD prevd-or-backward-word bind \e\e\[C nextd-or-forward-word bind \e\e\[D prevd-or-backward-word bind \eO3C nextd-or-forward-word bind \eO3D prevd-or-backward-word bind \e\[3C nextd-or-forward-word bind \e\[3D prevd-or-backward-word bind \e\[1\;3C nextd-or-forward-word bind \e\[1\;3D prevd-or-backward-word bind \e\eOA history-token-search-backward bind \e\eOB history-token-search-forward bind \e\e\[A history-token-search-backward bind \e\e\[B history-token-search-forward bind \eO3A history-token-search-backward bind \eO3B history-token-search-forward bind \e\[3A history-token-search-backward bind \e\[3B history-token-search-forward bind \e\[1\;3A history-token-search-backward bind \e\[1\;3B history-token-search-forward bind \ca beginning-of-line bind \ce end-of-line bind \ey yank-pop bind \ch backward-delete-char bind \cw backward-kill-word bind \cp history-search-backward bind \cn history-search-forward bind \cf forward-char bind \cb backward-char bind \ct transpose-chars bind \et transpose-words bind \eu upcase-word # This clashes with __fish_list_current_token # bind \el downcase-word bind \ec capitalize-word bind \e\x7f backward-kill-word bind \eb backward-word bind \ef forward-word bind \e\[1\;5C forward-word bind \e\[1\;5D backward-word bind \e\[1\;9A history-token-search-backward # iTerm2 bind \e\[1\;9B history-token-search-forward # iTerm2 bind \e\[1\;9C forward-word #iTerm2 bind \e\[1\;9D backward-word #iTerm2 # Bash compatibility # https://github.com/fish-shell/fish-shell/issues/89 bind \e. history-token-search-backward bind \ed forward-kill-word bind -k ppage beginning-of-history bind -k npage end-of-history bind \e\< beginning-of-buffer bind \e\> end-of-buffer bind \el __fish_list_current_token bind \ew 'set tok (commandline -pt); if test $tok[1]; echo; whatis $tok[1]; commandline -f repaint; end' bind \cl 'clear; commandline -f repaint' bind \cc 'commandline ""' bind \cu backward-kill-line bind \ed kill-word bind \cw backward-kill-path-component bind \ed 'set -l cmd (commandline); if test -z "$cmd"; echo; dirh; commandline -f repaint; else; commandline -f kill-word; end' bind \cd delete-or-exit # Allow reading manpages by pressing F1 bind -k f1 'man (basename (commandline -po; echo))[1] ^/dev/null; or echo -n \a' # This will make sure the output of the current command is paged using the less pager when you press Meta-p bind \ep '__fish_paginate' # shift-tab does a tab complete followed by a search bind --key btab complete-and-search # escape cancels stuff bind \e cancel # term-specific special bindings switch "$TERM" case 'rxvt*' bind \e\[8~ end-of-line bind \eOc forward-word bind \eOd backward-word end end fish_default_key_bindings '' + # Use vim bindings and cursors '' function fish_enable_vi_key_bindings -d "Default (Emacs-like) key bindings for fish" # Clear earlier bindings, if any bind --erase --all fish_vi_key_bindings set fish_cursor_default block blink set fish_cursor_insert line blink set fish_cursor_replace_one underscore blink set fish_cursor_visual block end '' + # Use terminal colors '' set -U fish_color_autosuggestion brblack set -U fish_color_cancel -r set -U fish_color_command brgreen set -U fish_color_comment brmagenta set -U fish_color_cwd green set -U fish_color_cwd_root red set -U fish_color_end brmagenta set -U fish_color_error brred set -U fish_color_escape brcyan set -U fish_color_history_current --bold set -U fish_color_host normal set -U fish_color_match --background=brblue set -U fish_color_normal normal set -U fish_color_operator cyan set -U fish_color_param brblue set -U fish_color_quote yellow set -U fish_color_redirection bryellow set -U fish_color_search_match 'bryellow' '--background=brblack' set -U fish_color_selection 'white' '--bold' '--background=brblack' set -U fish_color_status red set -U fish_color_user brgreen set -U fish_color_valid_path --underline set -U fish_pager_color_completion normal set -U fish_pager_color_description yellow set -U fish_pager_color_prefix 'white' '--bold' '--underline' set -U fish_pager_color_progress 'brwhite' '--background=cyan' ''; }; }