34b5dd453b
zsh-autosuggestions supports having fallback strategies expressed through the ZSH_AUTOSUGGEST_STRATEGY array. For example, `ZSH_AUTOSUGGEST_STRATEGY=(history completion)`. We should also support this.
74 lines
2.5 KiB
Nix
74 lines
2.5 KiB
Nix
{ config, pkgs, lib, ... }:
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with lib;
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let
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cfg = config.programs.zsh.autosuggestions;
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in
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{
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imports = [
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(mkRenamedOptionModule [ "programs" "zsh" "enableAutosuggestions" ] [ "programs" "zsh" "autosuggestions" "enable" ])
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];
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options.programs.zsh.autosuggestions = {
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enable = mkEnableOption "zsh-autosuggestions";
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highlightStyle = mkOption {
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type = types.str;
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default = "fg=8"; # https://github.com/zsh-users/zsh-autosuggestions/tree/v0.4.3#suggestion-highlight-style
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description = "Highlight style for suggestions ({fore,back}ground color)";
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example = "fg=cyan";
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};
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strategy = mkOption {
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type = types.listOf (types.enum [ "history" "completion" "match_prev_cmd" ]);
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default = [ "history" ];
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description = ''
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`ZSH_AUTOSUGGEST_STRATEGY` is an array that specifies how suggestions should be generated.
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The strategies in the array are tried successively until a suggestion is found.
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There are currently three built-in strategies to choose from:
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- `history`: Chooses the most recent match from history.
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- `completion`: Chooses a suggestion based on what tab-completion would suggest. (requires `zpty` module)
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- `match_prev_cmd`: Like `history`, but chooses the most recent match whose preceding history item matches
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the most recently executed command. Note that this strategy won't work as expected with ZSH options that
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don't preserve the history order such as `HIST_IGNORE_ALL_DUPS` or `HIST_EXPIRE_DUPS_FIRST`.
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'';
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};
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async = mkOption {
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type = types.bool;
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default = true;
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description = "Whether to fetch suggestions asynchronously";
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example = false;
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};
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extraConfig = mkOption {
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type = with types; attrsOf str;
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default = {};
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description = "Attribute set with additional configuration values";
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example = literalExpression ''
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{
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"ZSH_AUTOSUGGEST_BUFFER_MAX_SIZE" = "20";
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}
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'';
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};
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};
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config = mkIf cfg.enable {
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programs.zsh.interactiveShellInit = ''
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source ${pkgs.zsh-autosuggestions}/share/zsh-autosuggestions/zsh-autosuggestions.zsh
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export ZSH_AUTOSUGGEST_HIGHLIGHT_STYLE="${cfg.highlightStyle}"
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export ZSH_AUTOSUGGEST_STRATEGY=(${concatStringsSep " " cfg.strategy})
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${optionalString (!cfg.async) "unset ZSH_AUTOSUGGEST_USE_ASYNC"}
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${concatStringsSep "\n" (mapAttrsToList (key: value: ''export ${key}="${value}"'') cfg.extraConfig)}
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'';
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};
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}
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