nixpkgs/nixos/modules/programs/zsh/zsh-autosuggestions.nix
pennae 2e751c0772 treewide: automatically md-convert option descriptions
the conversion procedure is simple:

 - find all things that look like options, ie calls to either `mkOption`
   or `lib.mkOption` that take an attrset. remember the attrset as the
   option
 - for all options, find a `description` attribute who's value is not a
   call to `mdDoc` or `lib.mdDoc`
 - textually convert the entire value of the attribute to MD with a few
   simple regexes (the set from mdize-module.sh)
 - if the change produced a change in the manual output, discard
 - if the change kept the manual unchanged, add some text to the
   description to make sure we've actually found an option. if the
   manual changes this time, keep the converted description

this procedure converts 80% of nixos options to markdown. around 2000
options remain to be inspected, but most of those fail the "does not
change the manual output check": currently the MD conversion process
does not faithfully convert docbook tags like <code> and <package>, so
any option using such tags will not be converted at all.
2022-07-30 15:16:34 +02:00

74 lines
2.5 KiB
Nix

{ config, pkgs, lib, ... }:
with lib;
let
cfg = config.programs.zsh.autosuggestions;
in
{
imports = [
(mkRenamedOptionModule [ "programs" "zsh" "enableAutosuggestions" ] [ "programs" "zsh" "autosuggestions" "enable" ])
];
options.programs.zsh.autosuggestions = {
enable = mkEnableOption "zsh-autosuggestions";
highlightStyle = mkOption {
type = types.str;
default = "fg=8"; # https://github.com/zsh-users/zsh-autosuggestions/tree/v0.4.3#suggestion-highlight-style
description = lib.mdDoc "Highlight style for suggestions ({fore,back}ground color)";
example = "fg=cyan";
};
strategy = mkOption {
type = types.listOf (types.enum [ "history" "completion" "match_prev_cmd" ]);
default = [ "history" ];
description = ''
`ZSH_AUTOSUGGEST_STRATEGY` is an array that specifies how suggestions should be generated.
The strategies in the array are tried successively until a suggestion is found.
There are currently three built-in strategies to choose from:
- `history`: Chooses the most recent match from history.
- `completion`: Chooses a suggestion based on what tab-completion would suggest. (requires `zpty` module)
- `match_prev_cmd`: Like `history`, but chooses the most recent match whose preceding history item matches
the most recently executed command. Note that this strategy won't work as expected with ZSH options that
don't preserve the history order such as `HIST_IGNORE_ALL_DUPS` or `HIST_EXPIRE_DUPS_FIRST`.
'';
};
async = mkOption {
type = types.bool;
default = true;
description = lib.mdDoc "Whether to fetch suggestions asynchronously";
example = false;
};
extraConfig = mkOption {
type = with types; attrsOf str;
default = {};
description = lib.mdDoc "Attribute set with additional configuration values";
example = literalExpression ''
{
"ZSH_AUTOSUGGEST_BUFFER_MAX_SIZE" = "20";
}
'';
};
};
config = mkIf cfg.enable {
programs.zsh.interactiveShellInit = ''
source ${pkgs.zsh-autosuggestions}/share/zsh-autosuggestions/zsh-autosuggestions.zsh
export ZSH_AUTOSUGGEST_HIGHLIGHT_STYLE="${cfg.highlightStyle}"
export ZSH_AUTOSUGGEST_STRATEGY=(${concatStringsSep " " cfg.strategy})
${optionalString (!cfg.async) "unset ZSH_AUTOSUGGEST_USE_ASYNC"}
${concatStringsSep "\n" (mapAttrsToList (key: value: ''export ${key}="${value}"'') cfg.extraConfig)}
'';
};
}