More efficient kakoune editing integration

home/kakoune/kak.nix

@@ -19,10 +19,11 @@ let
     };
 in
 {
-  imports = [ ../modules/programs/my-kakoune ];
-  
+  imports = [ ../modules/programs/my-kakoune ./kaktex.nix ];
+
   # Enable the kakoune package.
   programs.my-kakoune.enable = true;
+  programs.my-kakoune.enable-fish-session = true;
   programs.kak-lsp.enable = true;
 
   programs.my-kakoune.package = kakounePkg;

home/kakoune/kaktex

@@ -0,0 +1,28 @@
+#!/usr/bin/env fish
+
+function usage
+    echo "Usage: "
+    echo "  kaktex set [client] [session]"
+    echo "  kaktex jump [file] [line]"
+    exit 1
+end
+
+if test (count $argv) -ne 3
+    usage
+end
+
+switch $argv[1]
+    case "set"
+        set -U _kaktex_client $argv[2]
+        set -U _kaktex_session $argv[3]
+    case "jump"
+        echo "
+                 evaluate-commands -client $_kaktex_client %{
+                     evaluate-commands -try-client $_kaktex_client %{
+                         edit -- $argv[2] $argv[3]
+                     }
+                 }
+             " | kak -p $_kaktex_session
+    case '*'
+        usage
+end

home/kakoune/kaktex.nix

@@ -0,0 +1,22 @@
+{ config, pkgs, lib, ... }:
+
+let
+  kaktexScript = ./kaktex;
+in
+{
+  # Create kak-tex executable
+  home.file.kaktex = {
+    source = kaktexScript;
+    executable = true;
+    target = ".bin/kaktex";
+  };
+
+  # Source kaktex whenever we have a tex file
+  programs.my-kakoune.rc = ''
+    hook global WinSetOption filetype=(tex|latex) %{
+        eval %sh{
+          ${kaktexScript} set $kak_client $kak_session
+        }
+    }
+  '';
+}