100 lines
3 KiB
Nix
100 lines
3 KiB
Nix
{ config, pkgs, lib, ... }:
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let
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inherit (lib)
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mkEnableOption mkPackageOption mkIf pipe fileContents splitString;
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cfg = config.programs.carapace;
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bin = cfg.package + "/bin/carapace";
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in {
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meta.maintainers = with lib.maintainers; [ weathercold bobvanderlinden ];
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options.programs.carapace = {
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enable =
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mkEnableOption "carapace, a multi-shell multi-command argument completer";
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package = mkPackageOption pkgs "carapace" { };
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enableBashIntegration = mkEnableOption "Bash integration" // {
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default = true;
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};
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enableZshIntegration = mkEnableOption "Zsh integration" // {
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default = true;
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};
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enableFishIntegration = mkEnableOption "Fish integration" // {
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default = true;
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};
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enableNushellIntegration = mkEnableOption "Nushell integration" // {
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default = true;
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};
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};
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config = mkIf cfg.enable {
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home.packages = [ cfg.package ];
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programs = {
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bash.initExtra = mkIf cfg.enableBashIntegration ''
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source <(${bin} _carapace bash)
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'';
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zsh.initExtra = mkIf cfg.enableZshIntegration ''
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source <(${bin} _carapace zsh)
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'';
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fish.interactiveShellInit = mkIf cfg.enableFishIntegration ''
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${bin} _carapace fish | source
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'';
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nushell = mkIf cfg.enableNushellIntegration {
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# Note, the ${"$"} below is a work-around because xgettext otherwise
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# interpret it as a Bash i18n string.
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extraEnv = ''
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let carapace_cache = "${config.xdg.cacheHome}/carapace"
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if not ($carapace_cache | path exists) {
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mkdir $carapace_cache
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}
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${bin} _carapace nushell | save -f ${"$"}"($carapace_cache)/init.nu"
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'';
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extraConfig = ''
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source ${config.xdg.cacheHome}/carapace/init.nu
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'';
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};
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};
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xdg.configFile =
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mkIf (config.programs.fish.enable && cfg.enableFishIntegration) (
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# Convert the entries from `carapace --list` to empty
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# xdg.configFile."fish/completions/NAME.fish" entries.
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#
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# This is to disable fish builtin completion for each of the
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# carapace-supported completions It is in line with the instructions from
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# carapace-bin:
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#
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# carapace --list | awk '{print $1}' | xargs -I{} touch ~/.config/fish/completions/{}.fish
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#
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# See https://github.com/rsteube/carapace-bin#getting-started
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let
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carapaceListFile = pkgs.runCommandLocal "carapace-list" {
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buildInputs = [ cfg.package ];
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} ''
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${bin} --list > $out
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'';
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in pipe carapaceListFile [
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fileContents
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(splitString "\n")
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(map (builtins.match "^([a-z0-9-]+) .*"))
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(builtins.filter
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(match: match != null && (builtins.length match) > 0))
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(map (match: builtins.head match))
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(map (name: {
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name = "fish/completions/${name}.fish";
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value = { text = ""; };
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}))
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builtins.listToAttrs
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]);
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};
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}
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