home-manager/modules/programs/fish.nix
Jonas Holst Damtoft 601619660d
fish: use global for abbr
Makes fish use global scope for abbreviations.
This makes it so that they don't stick across config changes.
Before, an abbreviation would still exist even if removed from the config.
2019-01-23 21:19:23 +01:00

192 lines
5.9 KiB
Nix

{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.programs.fish;
abbrsStr = concatStringsSep "\n" (
mapAttrsToList (k: v: "abbr --add --global ${k} '${v}'") cfg.shellAbbrs
);
aliasesStr = concatStringsSep "\n" (
mapAttrsToList (k: v: "alias ${k}='${v}'") cfg.shellAliases
);
in
{
options = {
programs.fish = {
enable = mkEnableOption "fish friendly interactive shell";
package = mkOption {
default = pkgs.fish;
defaultText = "pkgs.fish";
description = ''
The fish package to install. May be used to change the version.
'';
type = types.package;
};
shellAliases = mkOption {
default = {};
description = ''
Set of aliases for fish shell. See
<option>environment.shellAliases</option> for an option
format description.
'';
type = types.attrs;
};
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 = [ cfg.package ];
xdg.dataFile."fish/home-manager_generated_completions".source =
let
# paths later in the list will overwrite those already linked
destructiveSymlinkJoin =
args_@{ name
, paths
, preferLocalBuild ? true
, allowSubstitutes ? false
, postBuild ? ""
, ...
}:
let
args = removeAttrs args_ [ "name" "postBuild" ]
// { inherit preferLocalBuild allowSubstitutes; }; # pass the defaults
in pkgs.runCommand name args
''
mkdir -p $out
for i in $paths; do
if [ -z "$(find $i -prune -empty)" ]; then
cp -srf $i/* $out
fi
done
${postBuild}
'';
generateCompletions = package: pkgs.runCommand
"${package.name}-fish-completions"
{
src = package;
nativeBuildInputs = [ pkgs.python2 ];
buildInputs = [ cfg.package ];
preferLocalBuild = true;
allowSubstitutes = false;
}
''
mkdir -p $out
if [ -d $src/share/man ]; then
find $src/share/man -type f \
| xargs python ${cfg.package}/share/fish/tools/create_manpage_completions.py --directory $out \
> /dev/null
fi
'';
in
destructiveSymlinkJoin {
name = "${config.home.username}-fish-completions";
paths =
let
cmp = (a: b: (a.meta.priority or 0) > (b.meta.priority or 0));
in
map generateCompletions (sort cmp config.home.packages);
};
programs.fish.interactiveShellInit = ''
# add completions generated by Home Manager to $fish_complete_path
begin
set -l joined (string join " " $fish_complete_path)
set -l prev_joined (string replace --regex "[^\s]*generated_completions.*" "" $joined)
set -l post_joined (string replace $prev_joined "" $joined)
set -l prev (string split " " (string trim $prev_joined))
set -l post (string split " " (string trim $post_joined))
set fish_complete_path $prev "${config.xdg.dataHome}/fish/home-manager_generated_completions" $post
end
'';
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
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
and begin
# Abbrs
${abbrsStr}
# Aliases
${aliasesStr}
${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
'';
};
}