fish: Add OSC133 script

home/config/fish/osc133.fish

@@ -0,0 +1,23 @@
+# (Partially) Copied from: https://github.com/kovidgoyal/kitty/blob/v0.26.5/shell-integration/fish/vendor_conf.d/kitty-shell-integration.fish
+
+if not set -q __nifoc_prompt_state
+    function __nifoc_mark_prompt_start --on-event fish_prompt --on-event fish_cancel --on-event fish_posterror
+        test "$__nifoc_prompt_state" != prompt-start
+        and echo -en "\e]133;D\a"
+        set --global __nifoc_prompt_state prompt-start
+        echo -en "\e]133;A\a"
+    end
+    __nifoc_mark_prompt_start
+
+    function __nifoc_mark_output_start --on-event fish_preexec
+        set --global __nifoc_prompt_state pre-exec
+        echo -en "\e]133;C\a"
+    end
+
+    function __nifoc_mark_output_end --on-event fish_postexec
+        set --global __nifoc_prompt_state post-exec
+        echo -en "\e]133;D;$status\a"
+    end
+
+    set --global fish_handle_reflow 1
+end

home/programs/fish.nix

@@ -182,4 +182,9 @@
       end
     '';
   };
+
+  xdg.configFile."fish/conf.d" = {
+    source = ../config/fish;
+    recursive = true;
+  };
 }