nixos/tracker: Define env var so it can find miners’ subcommands

tracker looks in its directory tree for executable files
to make available as subcommands. Users expect to find subcommands
from tracker-miners package but that fails as they are in different
tree. We also cannot change the lookup path since tracker-miners
also depends on a library from tracker package.

Until we can break the dependency cycle on package level:

   tracker -> tracker-miners -> tracker-sparql (tracker)

we need to work around it. I chose to set an environment
variable that overrides the subcommands lookup to a tree
symlinking files from both packages in GNOME NixOS module.

https://gitlab.gnome.org/GNOME/tracker/-/issues/341
Fixes: https://github.com/NixOS/nixpkgs/issues/153378

1 files changed, 2 insertions, 0 deletions

diff --git a/nixos/modules/services/desktops/gnome/tracker-miners.nix b/nixos/modules/services/desktops/gnome/tracker-miners.nix
index c9101f0caa6..9351007d30b 100644
--- a/nixos/modules/services/desktops/gnome/tracker-miners.nix
+++ b/nixos/modules/services/desktops/gnome/tracker-miners.nix
@@ -47,6 +47,8 @@ with lib;
 
     systemd.packages = [ pkgs.tracker-miners ];
 
+    services.gnome.tracker.subcommandPackages = [ pkgs.tracker-miners ];
+
   };
 
 }