fix: include host update controls in AppImage assembly

tests/test_host_update_packaging.py

@@ -0,0 +1,27 @@
+"""Execute the actual backend-copy recipe, then import the packaged helpers."""
+import os
+from pathlib import Path
+import subprocess
+import sys
+import tempfile
+import unittest
+
+ROOT=Path(__file__).resolve().parents[1]
+
+class Packaging(unittest.TestCase):
+    def test_actual_appimage_copy_recipe_contains_importable_host_controls(self):
+        script=(ROOT/'AppImage/scripts/build_appimage.sh').read_text()
+        recipe='\n'.join(line for line in script.splitlines() if line.startswith('cp "$SCRIPT_DIR/') and '.py"' in line)
+        self.assertTrue(recipe)
+        with tempfile.TemporaryDirectory() as temporary:
+            folder=Path(temporary);(folder/'usr/bin').mkdir(parents=True)
+            result=subprocess.run(['bash','-eu','-c',recipe],env=dict(os.environ,SCRIPT_DIR=str(ROOT/'AppImage/scripts'),APP_DIR=str(folder)),capture_output=True,text=True,timeout=10)
+            self.assertEqual(result.returncode,0,result.stderr)
+            for name in ('host_update_controls.py','proxmenux_version_status.py','kernel_reboot.py','host_update_jobs.py'):
+                self.assertTrue((folder/'usr/bin'/name).is_file(),name+' omitted from AppImage')
+                self.assertEqual((folder/'usr/bin'/name).read_bytes(),(ROOT/'AppImage/scripts'/name).read_bytes())
+            code='import sys;sys.path.insert(0,sys.argv[1]);import host_update_controls,proxmenux_version_status'
+            result=subprocess.run([sys.executable,'-I','-B','-c',code,str(folder/'usr/bin')],capture_output=True,text=True,timeout=5)
+            self.assertEqual(result.returncode,0,result.stderr)
+
+if __name__=='__main__':unittest.main(verbosity=2)