feat(eaglemode/emacsclient): use actual Emacs icon for command r/8621

Adds a new function that converts anything to a TGA image (imagemagick really is
magic), with which arbitrary icons can be converted.

This is demoed with the emacsclient command, which just takes the icon out of
the Emacs package tree.

Change-Id: I771bafed7b07a37c847bd07db986228b9fda60a0
Reviewed-on: https://cl.tvl.fyi/c/depot/+/12374
Autosubmit: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
Reviewed-by: azahi <azat@bahawi.net>
Reviewed-by: tazjin <tazjin@tvl.su>

1 files changed, 5 insertions, 0 deletions

diff --git a/tools/eaglemode/default.nix b/tools/eaglemode/default.nix
index eade62c02898..0b0c0caa8ba8 100644
--- a/tools/eaglemode/default.nix
+++ b/tools/eaglemode/default.nix
@@ -63,6 +63,11 @@ rec {
     '')
   );
 
+  # mkTGA converts the given image to a TGA image.
+  mkTGA = name: path: pkgs.runCommand "${name}.tga" { } ''
+    ${pkgs.imagemagick}/bin/convert ${path} $out
+  '';
+
   # etcDir creates a directory layout suitable for use in the EM_USER_CONFIG_DIR
   # environment variable.
   #