fix: do not crash if there are no matches

build.sh

@@ -0,0 +1,42 @@
+set -euo pipefail
+
+grep "current_version =" "$REPO_ROOT/pyproject.toml" 
+
+while true; do
+  read -rp "Is the current version flag correctly set? [y/N] " yn
+  case $yn in
+    [yY]* ) break;;
+    [Nn]* ) exit;;
+    * ) exit ;;
+  esac
+done
+
+# update the caches
+uv sync
+touch "$REPO_ROOT/flake.nix"
+
+# ensure that everything works as expected
+mkdocs build --clean
+pytest
+
+rm -rf "$REPO_ROOT/dist"
+rm -f "$REPO_ROOT/isd.x86_64-linux.AppImage"
+rm -f "$REPO_ROOT/isd.aarch64-linux.AppImage"
+
+# start building everything
+uv build
+
+echo "Building x86-64 isd-AppImage"
+nix build .#isd-AppImage
+cp "$(readlink -f ./result)" isd.x86_64-linux.AppImage
+
+echo "Building aarch64 isd-AppImage"
+nix build .#packages.aarch64-linux.isd-AppImage
+cp "$(readlink -f ./result)" isd.aarch64-linux.AppImage
+
+# publish latest docs
+echo "Publishing docs"
+mkdocs gh-deploy --no-history
+
+echo "Remember to update PyPI!"
+

flake.nix

@@ -87,13 +87,12 @@
       # python = pkgs.python313;
 
       # Construct package set
-      pythonSet311For = eachSystem (
-        system:
+      pythonSet311 = (
+        pkgs:
         let
           # injecting cairosvg from upstream nixpkgs, as it is currently not
           # supported by the uv2nix_hammer project and is still in the todo list.
           # https://pyproject-nix.github.io/pyproject.nix/builders/hacks.html
-          pkgs = pkgsFor.${system};
           # python = pkgs.python312;
           python = pkgs.python311;
           hacks = pkgs.callPackage inputs.pyproject-nix.build.hacks { };
@@ -117,16 +116,19 @@
                   prev = prev.cairocffi;
                 };
               })
+              # (_final: prev: {
+              #   pythonPkgsBuildHost = prev.pythonPkgsBuildHost.overrideScope pyprojectOverrides;
+              # })
             ]
           )
       );
-      pythonSet313For = eachSystem (
-        system:
+      pythonSet313 = (
+        pkgs:
         let
           # injecting cairosvg from upstream nixpkgs, as it is currently not
           # supported by the uv2nix_hammer project and is still in the todo list.
           # https://pyproject-nix.github.io/pyproject.nix/builders/hacks.html
-          pkgs = pkgsFor.${system};
+          # pkgs = pkgsFor.${system};
           # python = pkgs.python312;
           python = pkgs.python313;
           hacks = pkgs.callPackage inputs.pyproject-nix.build.hacks { };
@@ -176,8 +178,10 @@
       packages = eachSystem (
         system:
         let
+          # https://pyproject-nix.github.io/uv2nix/patterns/cross/index.html
           pkgs = pkgsFor.${system};
-          pythonSet = pythonSet313For.${system};
+          # pkgs = pkgsFor.${system}.pkgsCross.aarch64-multiplatform;
+          pythonSet = pythonSet313 pkgs;
           version = (builtins.fromTOML (builtins.readFile ./pyproject.toml)).project.version;
           gen_unit =
             name:
@@ -330,7 +334,7 @@
         system:
         let
           pkgs = pkgsFor.${system};
-          pythonSet = pythonSet311For.${system};
+          pythonSet = pythonSet311 pkgs;
           lib = pkgs.lib;
         in
         {

pyproject.toml

@@ -27,7 +27,7 @@ dependencies = [
     "pydantic>=2.10.4",
     "types-pyyaml>=6.0.12.20241221",
 ]
-version = "0.5.0"
+version = "0.5.1"
 
 # # versioningit was great in theory
 # # but it comes with too many issues for packaging
@@ -62,8 +62,10 @@ docs = [
 ]
 
 [build-system]
-requires = ["hatchling", "editables"]
+# requires = ["hatchling", "editables"]
+requires = ["hatchling", "editables", "setuptools"]
 build-backend = "hatchling.build"
+# build-backend = "hatchling.ouroboros"
 
 [project.scripts]
 isd = "isd_tui.isd:main"
@@ -97,7 +99,7 @@ exclude = [
 "share/" = "share/"
 
 [tool.bumpversion]
-current_version = "0.5.0"
+current_version = "0.5.1"
 parse = """
     (?P<major>0|[1-9]\\d*)\\.
     (?P<minor>0|[1-9]\\d*)\\.

src/isd_tui/isd.py

@@ -1319,10 +1319,13 @@ async def load_unit_to_state_dict(mode: str, *pattern: str) -> Dict[str, UnitRep
     )
     stdout, stderr = await proc.communicate()
 
-    # Ignore if there is an issue with ancient `systemd` versions
-    # that do not have `systemctl list-unit-files` as a sub-command.
-    if proc.returncode == 0:
-        parsed_unit_files = parse_list_unit_files_lines(stdout.decode())
+    # If there are no matches for the selected pattern,
+    # `systemctl list-unit-files` returns a non-zero exit code!
+    # Better to check `stderr`.
+    if stderr.decode() != "":
+        raise Exception(proc.stderr)
+
+    parsed_unit_files = parse_list_unit_files_lines(stdout.decode())
     return {**parsed_unit_files, **parsed_units}
 
 
@@ -2525,6 +2528,7 @@ def __init__(
         if force_defaults:
             self.settings = Settings.model_construct()
             self.settings.cache_input = False
+            self.settings.startup_mode = StartupMode("user")
             self.settings_error = None
         else:
             try: