nixpkgs/nixos/modules/programs/vim.nix

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{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.programs.vim;
in {
options.programs.vim = {
defaultEditor = mkOption {
type = types.bool;
default = false;
description = ''
When enabled, installs vim and configures vim to be the default editor
using the EDITOR environment variable.
'';
};
package = mkOption {
type = types.package;
default = pkgs.vim;
defaultText = "pkgs.vim";
example = "pkgs.vimHugeX";
description = ''
vim package to use.
'';
};
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};
config = mkIf cfg.defaultEditor {
environment.systemPackages = [ cfg.package ];
environment.variables = { EDITOR = mkOverride 900 "vim"; };
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};
}