240 lines
8.2 KiB
Nix
240 lines
8.2 KiB
Nix
{ config, lib, pkgs, ... }:
|
|
|
|
with lib;
|
|
|
|
let
|
|
|
|
cfge = config.environment;
|
|
|
|
cfg = config.programs.fish;
|
|
|
|
fishAliases = concatStringsSep "\n" (
|
|
mapAttrsFlatten (k: v: "alias ${k} ${escapeShellArg v}")
|
|
(filterAttrs (k: v: !isNull v) cfg.shellAliases)
|
|
);
|
|
|
|
in
|
|
|
|
{
|
|
|
|
options = {
|
|
|
|
programs.fish = {
|
|
|
|
enable = mkOption {
|
|
default = false;
|
|
description = ''
|
|
Whether to configure fish as an interactive shell.
|
|
'';
|
|
type = types.bool;
|
|
};
|
|
|
|
vendor.config.enable = mkOption {
|
|
type = types.bool;
|
|
default = true;
|
|
description = ''
|
|
Whether fish should source configuration snippets provided by other packages.
|
|
'';
|
|
};
|
|
|
|
vendor.completions.enable = mkOption {
|
|
type = types.bool;
|
|
default = true;
|
|
description = ''
|
|
Whether fish should use completion files provided by other packages.
|
|
'';
|
|
};
|
|
|
|
vendor.functions.enable = mkOption {
|
|
type = types.bool;
|
|
default = true;
|
|
description = ''
|
|
Whether fish should autoload fish functions provided by other packages.
|
|
'';
|
|
};
|
|
|
|
shellAliases = mkOption {
|
|
default = {};
|
|
description = ''
|
|
Set of aliases for fish shell, which overrides <option>environment.shellAliases</option>.
|
|
See <option>environment.shellAliases</option> for an option format description.
|
|
'';
|
|
type = with types; attrsOf (nullOr (either str path));
|
|
};
|
|
|
|
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 {
|
|
|
|
programs.fish.shellAliases = mapAttrs (name: mkDefault) cfge.shellAliases;
|
|
|
|
environment.etc."fish/foreign-env/shellInit".text = cfge.shellInit;
|
|
environment.etc."fish/foreign-env/loginShellInit".text = cfge.loginShellInit;
|
|
environment.etc."fish/foreign-env/interactiveShellInit".text = cfge.interactiveShellInit;
|
|
|
|
environment.etc."fish/nixos-env-preinit.fish".text = ''
|
|
# This happens before $__fish_datadir/config.fish sets fish_function_path, so it is currently
|
|
# unset. We set it and then completely erase it, leaving its configuration to $__fish_datadir/config.fish
|
|
set fish_function_path ${pkgs.fish-foreign-env}/share/fish-foreign-env/functions $__fish_datadir/functions
|
|
|
|
# source the NixOS environment config
|
|
if [ -z "$__NIXOS_SET_ENVIRONMENT_DONE" ]
|
|
fenv source ${config.system.build.setEnvironment}
|
|
end
|
|
|
|
# clear fish_function_path so that it will be correctly set when we return to $__fish_datadir/config.fish
|
|
set -e fish_function_path
|
|
'';
|
|
|
|
environment.etc."fish/config.fish".text = ''
|
|
# /etc/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_nixos_general_config_sourced
|
|
set fish_function_path ${pkgs.fish-foreign-env}/share/fish-foreign-env/functions $fish_function_path
|
|
fenv source /etc/fish/foreign-env/shellInit > /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_nixos_general_config_sourced 1
|
|
end
|
|
|
|
# if we haven't sourced the login config, do it
|
|
status --is-login; and not set -q __fish_nixos_login_config_sourced
|
|
and begin
|
|
set fish_function_path ${pkgs.fish-foreign-env}/share/fish-foreign-env/functions $fish_function_path
|
|
fenv source /etc/fish/foreign-env/loginShellInit > /dev/null
|
|
set -e fish_function_path[1]
|
|
|
|
${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_nixos_login_config_sourced 1
|
|
end
|
|
|
|
# if we haven't sourced the interactive config, do it
|
|
status --is-interactive; and not set -q __fish_nixos_interactive_config_sourced
|
|
and begin
|
|
${fishAliases}
|
|
|
|
set fish_function_path ${pkgs.fish-foreign-env}/share/fish-foreign-env/functions $fish_function_path
|
|
fenv source /etc/fish/foreign-env/interactiveShellInit > /dev/null
|
|
set -e fish_function_path[1]
|
|
|
|
${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_nixos_interactive_config_sourced 1
|
|
end
|
|
'';
|
|
|
|
programs.fish.interactiveShellInit = ''
|
|
# add completions generated by NixOS to $fish_complete_path
|
|
begin
|
|
# joins with null byte to acommodate all characters in paths, then respectively gets all paths before (exclusive) / after (inclusive) the first one including "generated_completions",
|
|
# splits by null byte, and then removes all empty lines produced by using 'string'
|
|
set -l prev (string join0 $fish_complete_path | string match --regex "^.*?(?=\x00[^\x00]*generated_completions.*)" | string split0 | string match -er ".")
|
|
set -l post (string join0 $fish_complete_path | string match --regex "[^\x00]*generated_completions.*" | string split0 | string match -er ".")
|
|
set fish_complete_path $prev "/etc/fish/generated_completions" $post
|
|
end
|
|
'';
|
|
|
|
environment.etc."fish/generated_completions".source =
|
|
let
|
|
patchedGenerator = pkgs.stdenv.mkDerivation {
|
|
name = "fish_patched-completion-generator";
|
|
srcs = [
|
|
"${pkgs.fish}/share/fish/tools/create_manpage_completions.py"
|
|
"${pkgs.fish}/share/fish/tools/deroff.py"
|
|
];
|
|
unpackCmd = "cp $curSrc $(basename $curSrc)";
|
|
sourceRoot = ".";
|
|
patches = [ ./fish_completion-generator.patch ]; # to prevent collisions of identical completion files
|
|
dontBuild = true;
|
|
installPhase = ''
|
|
mkdir -p $out
|
|
cp * $out/
|
|
'';
|
|
preferLocalBuild = true;
|
|
allowSubstitutes = false;
|
|
};
|
|
generateCompletions = package: pkgs.runCommand
|
|
"${package.name}_fish-completions"
|
|
(
|
|
{
|
|
inherit package;
|
|
preferLocalBuild = true;
|
|
allowSubstitutes = false;
|
|
}
|
|
// optionalAttrs (package ? meta.priority) { meta.priority = package.meta.priority; }
|
|
)
|
|
''
|
|
mkdir -p $out
|
|
if [ -d $package/share/man ]; then
|
|
find $package/share/man -type f | xargs ${pkgs.python3.interpreter} ${patchedGenerator}/create_manpage_completions.py --directory $out >/dev/null
|
|
fi
|
|
'';
|
|
in
|
|
pkgs.buildEnv {
|
|
name = "system_fish-completions";
|
|
ignoreCollisions = true;
|
|
paths = map generateCompletions config.environment.systemPackages;
|
|
};
|
|
|
|
# include programs that bring their own completions
|
|
environment.pathsToLink = []
|
|
++ optional cfg.vendor.config.enable "/share/fish/vendor_conf.d"
|
|
++ optional cfg.vendor.completions.enable "/share/fish/vendor_completions.d"
|
|
++ optional cfg.vendor.functions.enable "/share/fish/vendor_functions.d";
|
|
|
|
environment.systemPackages = [ pkgs.fish ];
|
|
|
|
environment.shells = [
|
|
"/run/current-system/sw/bin/fish"
|
|
"${pkgs.fish}/bin/fish"
|
|
];
|
|
|
|
};
|
|
|
|
}
|