From 2548c4317519f5b23c3d3304d69e12651da36e5a Mon Sep 17 00:00:00 2001
From: Mogria <m0gr14@gmail.com>
Date: Thu, 16 Aug 2018 18:04:36 +0200
Subject: [PATCH] fzf: add options for setting commands for all keys

This allows you to specify your own custom commands
to be run when calling fzf. You might use tools like
fd to search faster and take `.gitignore` files into
consideration.
---
 modules/programs/fzf.nix | 45 +++++++++++++++++++++++++++++++++++++++-
 1 file changed, 44 insertions(+), 1 deletion(-)

diff --git a/modules/programs/fzf.nix b/modules/programs/fzf.nix
index 2085d9e52..7279d9035 100644
--- a/modules/programs/fzf.nix
+++ b/modules/programs/fzf.nix
@@ -12,6 +12,16 @@ in
   options.programs.fzf = {
     enable = mkEnableOption "fzf - a command-line fuzzy finder";
 
+    defaultCommand = mkOption {
+      type = types.nullOr types.str;
+      default = null;
+      example = "fd --type f";
+      description = ''
+        The command that gets executed as the default source for fzf
+        when running.
+      '';
+    };
+
     defaultOptions = mkOption {
       type = types.listOf types.str;
       default = [];
@@ -21,6 +31,16 @@ in
       '';
     };
 
+    fileWidgetCommand = mkOption {
+      type = types.nullOr types.str;
+      default = null;
+      example = "fd --type f";
+      description = ''
+        The command that gets executed as the source for fzf for the
+        CTRL-T keybinding.
+      '';
+    };
+
     fileWidgetOptions = mkOption {
       type = types.listOf types.str;
       default = [];
@@ -30,6 +50,16 @@ in
       '';
     };
 
+    changeDirWidgetCommand = mkOption {
+      type = types.nullOr types.str;
+      default = null;
+      example = "fd --type d" ;
+      description = ''
+        The command that gets executed as the source for fzf for the
+        ALT-C keybinding.
+      '';
+    };
+
     changeDirWidgetOptions = mkOption {
       type = types.listOf types.str;
       default = [];
@@ -39,6 +69,15 @@ in
       '';
     };
 
+    historyWidgetCommand = mkOption {
+      type = types.nullOr types.str;
+      default = null;
+      description = ''
+        The command that gets executed as the source for fzf for the
+        CTRL-R keybinding.
+      '';
+    };
+
     historyWidgetOptions = mkOption {
       type = types.listOf types.str;
       default = [];
@@ -70,10 +109,14 @@ in
 
     home.sessionVariables =
       mapAttrs (n: v: toString v) (
-        filterAttrs (n: v: v != []) {
+        filterAttrs (n: v: v != [] && v != null) {
+          FZF_ALT_C_COMMAND = cfg.changeDirWidgetCommand;
           FZF_ALT_C_OPTS = cfg.changeDirWidgetOptions;
+          FZF_CTRL_R_COMMAND = cfg.historyWidgetCommand;
           FZF_CTRL_R_OPTS = cfg.historyWidgetOptions;
+          FZF_CTRL_T_COMMAND = cfg.fileWidgetCommand;
           FZF_CTRL_T_OPTS = cfg.fileWidgetOptions;
+          FZF_DEFAULT_COMMAND = cfg.defaultCommand;
           FZF_DEFAULT_OPTS = cfg.defaultOptions;
         }
       );