rofi: split sane-open-desktop out as a helper

hosts/common/programs/assorted.nix

@@ -757,6 +757,11 @@ in
 
     rustc = {};
 
+    sane-open-desktop.sandbox.enable = false;  #< trivial script, and all our deps are sandboxed
+    sane-open-desktop.suggestedPrograms = [
+      "gdbus"
+    ];
+
     screen.sandbox.enable = false;  #< tty; needs to run anything
 
     sequoia.sandbox.method = "bwrap";  # TODO:sandbox: untested

hosts/common/programs/rofi/default.nix

@@ -106,12 +106,12 @@ in
     packageUnwrapped = pkgs.static-nix-shell.mkBash {
       pname = "rofi-run-command";
       srcRoot = ./.;
-      pkgs = [ "glib" "xdg-utils" ];
+      pkgs = [ "sane-open-desktop" "xdg-utils" ];
     };
     sandbox.enable = false;  #< trivial script, and all our deps are sandboxed
 
     suggestedPrograms = [
-      "gdbus"
+      "sane-open-desktop"
       "xdg-utils"
     ];
   };

hosts/common/programs/rofi/rofi-run-command

@@ -1,5 +1,5 @@
 #!/usr/bin/env nix-shell
-#!nix-shell -i bash -p glib -p xdg-utils
+#!nix-shell -i bash -p sane-open-desktop -p xdg-utils
 
 # use:
 # rofi-run-command <handler>.desktop [cmd [args ...]]
@@ -14,11 +14,7 @@ shift
 binArgs=("$@")
 
 if [ "$desktop" != .desktop ]; then
-  exec gdbus call --session --timeout 10 \
-    --dest org.freedesktop.portal.Desktop \
-    --object-path /org/freedesktop/portal/desktop \
-    --method org.freedesktop.portal.DynamicLauncher.Launch \
-    "$desktop" {}
+  exec sane-open-desktop "$desktop"
 elif [ "$binary" = "xdg-open" ]; then
   exec xdg-open "$@"
 fi

pkgs/additional/sane-open-desktop/default.nix

@@ -0,0 +1,6 @@
+{ static-nix-shell }:
+static-nix-shell.mkBash {
+  pname = "sane-open-desktop";
+  srcRoot = ./.;
+  pkgs = [ "glib" ];
+}

pkgs/additional/sane-open-desktop/sane-open-desktop

@@ -0,0 +1,12 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -i bash -p glib
+
+# usage: sane-open-desktop org.my.desktop
+# given some .desktop file (by name, not by path), ask the xdg-desktop-portal service to open it
+
+exec gdbus call --session --timeout 10 \
+  --dest org.freedesktop.portal.Desktop \
+  --object-path /org/freedesktop/portal/desktop \
+  --method org.freedesktop.portal.DynamicLauncher.Launch \
+  "$1" {}
+

pkgs/default.nix

@@ -56,6 +56,7 @@ let
     pipeline = callPackage ./additional/pipeline { };
     rtl8723cs-firmware = callPackage ./additional/rtl8723cs-firmware { };
     rtl8723cs-wowlan = callPackage ./additional/rtl8723cs-wowlan { };
+    sane-open-desktop = callPackage ./additional/sane-open-desktop { };
     sane-scripts = lib.recurseIntoAttrs (callPackage ./additional/sane-scripts { });
     sane-weather = callPackage ./additional/sane-weather { };
     signal-desktop-from-src = callPackage ./additional/signal-desktop-from-src { };