devshell: remove dependency on clan-cli

This stops the devshell from being re-built constantly, when the source code changes.

Based on a new feature in treefmt-nix: https://github.com/numtide/treefmt-nix/pull/208

checks/devshell/flake-module.nix

@@ -0,0 +1,22 @@
+{ ... }:
+{
+  perSystem =
+    { self', pkgs, ... }:
+    {
+      checks.devshell =
+        pkgs.runCommand "check-devshell-not-depends-on-clan-cli"
+          {
+            exportReferencesGraph = [
+              "graph"
+              self'.devShells.default
+            ];
+          }
+          ''
+            if grep -q "${self'.packages.clan-cli}" ./graph; then
+              echo "devshell depends on clan-cli, which is not allowed";
+              exit 1;
+            fi
+            mkdir $out
+          '';
+    };
+}

checks/flake-module.nix

@@ -1,10 +1,11 @@
 { self, ... }:
 {
   imports = [
-    ./impure/flake-module.nix
     ./backups/flake-module.nix
-    ./installation/flake-module.nix
+    ./devshell/flake-module.nix
     ./flash/flake-module.nix
+    ./impure/flake-module.nix
+    ./installation/flake-module.nix
   ];
   perSystem =
     {

devShell.nix

@@ -38,6 +38,7 @@
         ];
         shellHook = ''
           echo -e "${ansiEscapes.green}switch to another dev-shell using: select-shell${ansiEscapes.reset}"
+          export PROJECT_ROOT=$(git rev-parse --show-toplevel)
         '';
       };
     };

flake.lock

@@ -115,11 +115,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1721458737,
+        "lastModified": 1722699361,
-        "narHash": "sha256-wNXLQ/ATs1S4Opg1PmuNoJ+Wamqj93rgZYV3Di7kxkg=",
+        "narHash": "sha256-3GDJCoNj7PEwQaOqmNgcwoHM+Xy/fkgqeXC1y7UzV2U=",
         "owner": "numtide",
         "repo": "treefmt-nix",
-        "rev": "888bfb10a9b091d9ed2f5f8064de8d488f7b7c97",
+        "rev": "07741a9babd0754bf73fb47a6340d6289eabd1d6",
         "type": "github"
       },
       "original": {

formatter.nix

@@ -44,7 +44,6 @@
           "*.yml"
         ];
       };
-
       treefmt.programs.mypy.directories =
         {
           "pkgs/clan-cli" = {
@@ -53,8 +52,8 @@
           };
           "pkgs/clan-app" = {
             extraPythonPackages =
-              # clan-app currently only exists on linux
               (self'.packages.clan-app.externalTestDeps or [ ]) ++ self'.packages.clan-cli.testDependencies;
+            extraPythonPaths = [ "$PROJECT_ROOT/pkgs/clan-cli" ];
             modules = [ "clan_app" ];
           };
         }
@@ -63,8 +62,8 @@
             {
               "pkgs/clan-vm-manager" = {
                 extraPythonPackages =
-                  #   # clan-app currently only exists on linux
+                  self'.packages.clan-vm-manager.externalTestDeps ++ self'.packages.clan-cli.testDependencies;
-                  self'.packages.clan-vm-manager.testDependencies;
+                extraPythonPaths = [ "$PROJECT_ROOT/pkgs/clan-cli" ];
                 modules = [ "clan_vm_manager" ];
               };
             }

pkgs/clan-app/clan_app/api/file.py

@@ -16,6 +16,10 @@ from clan_app.api import ImplFunc
 log = logging.getLogger(__name__)
 
 
+def remove_none(_list: list) -> list:
+    return [i for i in _list if i is not None]
+
+
 # This implements the abstract function open_file with one argument, file_request,
 # which is a FileRequest object and returns a string or None.
 class open_file(
@@ -29,7 +33,7 @@ class open_file(
             try:
                 gfile = file_dialog.open_finish(task)
                 if gfile:
-                    selected_path = [gfile.get_path()]
+                    selected_path = remove_none([gfile.get_path()])
                     self.returns(
                         SuccessDataClass(
                             op_key=op_key, data=selected_path, status="success"
@@ -44,7 +48,7 @@ class open_file(
             try:
                 gfiles: Any = file_dialog.open_multiple_finish(task)
                 if gfiles:
-                    selected_paths = [gfile.get_path() for gfile in gfiles]
+                    selected_paths = remove_none([gfile.get_path() for gfile in gfiles])
                     self.returns(
                         SuccessDataClass(
                             op_key=op_key, data=selected_paths, status="success"
@@ -57,7 +61,7 @@ class open_file(
             try:
                 gfile = file_dialog.select_folder_finish(task)
                 if gfile:
-                    selected_path = [gfile.get_path()]
+                    selected_path = remove_none([gfile.get_path()])
                     self.returns(
                         SuccessDataClass(
                             op_key=op_key, data=selected_path, status="success"
@@ -70,7 +74,7 @@ class open_file(
             try:
                 gfile = file_dialog.save_finish(task)
                 if gfile:
-                    selected_path = [gfile.get_path()]
+                    selected_path = remove_none([gfile.get_path()])
                     self.returns(
                         SuccessDataClass(
                             op_key=op_key, data=selected_path, status="success"

pkgs/clan-app/shell.nix

@@ -65,6 +65,5 @@ mkShell {
 
     export XDG_DATA_DIRS=${gtk4}/share/gsettings-schemas/gtk4-4.14.4:$XDG_DATA_DIRS
     export XDG_DATA_DIRS=${gsettings-desktop-schemas}/share/gsettings-schemas/gsettings-desktop-schemas-46.0:$XDG_DATA_DIRS
-
   '';
 }