2 files changed, 31 insertions, 9 deletions
diff --git a/hosts/muhammed/home/iterm2/auto_theme.py b/hosts/muhammed/home/iterm2/auto_theme.py
new file mode 100644
index 0000000..17a254d
--- /dev/null
+++ b/hosts/muhammed/home/iterm2/auto_theme.py
@@ -0,0 +1,26 @@
+#!/usr/bin/env python3
+
+import asyncio
+import iterm2
+
+async def main(connection):
+    async with iterm2.VariableMonitor(connection, iterm2.VariableScopes.APP, "effectiveTheme", None) as mon:
+        while True:
+            # Block until theme changes
+            theme = await mon.async_get()
+
+            # Themes have space-delimited attributes, one of which will be light or dark.
+            parts = theme.split(" ")
+            if "dark" in parts:
+                preset = await iterm2.ColorPreset.async_get(connection, "Dark Background")
+            else:
+                preset = await iterm2.ColorPreset.async_get(connection, "Light Background")
+
+            # Update the list of all profiles and iterate over them.
+            profiles=await iterm2.PartialProfile.async_query(connection)
+            for partial in profiles:
+                # Fetch the full profile and then set the color preset in it.
+                profile = await partial.async_get_full_profile()
+                await profile.async_set_color_preset(preset)
+
+iterm2.run_forever(main)
diff --git a/hosts/muhammed/home/iterm2/default.nix b/hosts/muhammed/home/iterm2/default.nix
index d868e57..b6a9ecc 100644
--- a/hosts/muhammed/home/iterm2/default.nix
+++ b/hosts/muhammed/home/iterm2/default.nix
@@ -1,17 +1,13 @@
 # This file configures iterm2. Note that the actual definition of iTerm2 for
 # home-manager is in `modules/home-manager/iterm2`. *That* file declares
 # `options.programs.iterm2.enable`.
-{
-  pkgs,
-  lib,
-  ...
-}: let
-  inherit (lib) mkIf;
-  inherit (pkgs.stdenv) isDarwin;
-in {
-  config = mkIf isDarwin {
+{pkgs, ...}: {
+  config = {
     home.packages = with pkgs; [imgcat];
 
+    # Install a script which automatically makes iTerm2 match the system-wide light/dark mode.
+    home.file."/Library/Application Support/iTerm2/Scripts/AutoLaunch/auto_theme.py".text = builtins.readFile ./auto_theme.py;
+
     programs.iterm2 = {
       enable = true;
       # config = {