home-manager/modules/programs/fish.nix

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{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.programs.fish;
abbrsStr = concatStringsSep "\n" (
mapAttrsToList (k: v: "abbr --add ${k} '${v}'") cfg.shellAbbrs
);
aliasesStr = concatStringsSep "\n" (
mapAttrsToList (k: v: "alias ${k}='${v}'") cfg.shellAliases
);
in
{
options = {
programs.fish = {
enable = mkEnableOption "fish friendly interactive shell";
shellAliases = mkOption {
default = {};
description = ''
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Set of aliases for fish shell. See
<option>environment.shellAliases</option> for an option
format description.
'';
type = types.attrs;
};
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shellAbbrs = mkOption {
default = {};
description = ''
Set of abbreviations for fish shell.
'';
type = types.attrs;
};
shellInit = mkOption {
default = "";
description = ''
Shell script code called during fish shell initialisation.
'';
type = types.lines;
};
loginShellInit = mkOption {
default = "";
description = ''
Shell script code called during fish login shell initialisation.
'';
type = types.lines;
};
interactiveShellInit = mkOption {
default = "";
description = ''
Shell script code called during interactive fish shell initialisation.
'';
type = types.lines;
};
promptInit = mkOption {
default = "";
description = ''
Shell script code used to initialise fish prompt.
'';
type = types.lines;
};
};
};
config = mkIf cfg.enable {
home.packages = [ pkgs.fish ];
xdg.configFile."fish/config.fish".text = ''
# ~/.config/fish/config.fish: DO NOT EDIT -- this file has been generated automatically.
# if we haven't sourced the general config, do it
if not set -q __fish_general_config_sourced
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set fish_function_path ${pkgs.fish-foreign-env}/share/fish-foreign-env/functions $fish_function_path
fenv source ${config.home.profileDirectory}/etc/profile.d/hm-session-vars.sh > /dev/null
set -e fish_function_path[1]
${cfg.shellInit}
# and leave a note so we don't source this config section again from
# this very shell (children will source the general config anew)
set -g __fish_general_config_sourced 1
end
# if we haven't sourced the login config, do it
status --is-login; and not set -q __fish_login_config_sourced
and begin
${cfg.loginShellInit}
# and leave a note so we don't source this config section again from
# this very shell (children will source the general config anew)
set -g __fish_login_config_sourced 1
end
# if we haven't sourced the interactive config, do it
status --is-interactive; and not set -q __fish_interactive_config_sourced
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and begin
# Abbrs
${abbrsStr}
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# Aliases
${aliasesStr}
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${cfg.promptInit}
${cfg.interactiveShellInit}
# and leave a note so we don't source this config section again from
# this very shell (children will source the general config anew,
# allowing configuration changes in, e.g, aliases, to propagate)
set -g __fish_interactive_config_sourced 1
end
'';
};
}