Scope legacy launcher checks to Tauri and protect Electron backend reuse

tests/test_desktop_prod_scripts.py

@@ -30,7 +30,7 @@ _APPIMAGE_PROCESSES = os.path.join(_ROOT, "scripts", "desktop_prod_processes.py"
 
 # Scripts whose NAME promises a re-launch of an existing build rather than a
 # fresh-install emulation. Add new aliases here when they appear.
-_RELAUNCH_SCRIPTS = ("desktop-prod:run", "desktop-prod:run:pill")
+_RELAUNCH_SCRIPTS = ("tauri:desktop-prod:run", "tauri:desktop-prod:run:pill")
 
 
 def _supported_bash() -> str | None:
@@ -87,12 +87,12 @@ def test_fresh_install_emulation_still_wipes():
     """The other side of the branch: the default must stay a real fresh run,
     otherwise this test would 'pass' by making every script harmless."""
     scripts = _scripts()
-    assert "--keep-data" not in scripts["desktop-prod"], (
+    assert "--keep-data" not in scripts["tauri:desktop-prod"], (
         "desktop-prod is the fresh-install emulation — it must still wipe"
     )
     # `desktop-fresh:run` is deliberately NOT in _RELAUNCH_SCRIPTS: that script
     # is a stricter new-user emulation, so wiping is the point of its name.
-    assert "--keep-data" not in scripts["desktop-fresh:run"]
+    assert "--keep-data" not in scripts["tauri:desktop-fresh:run"]
 
 
 def test_skip_build_does_not_imply_keep_data_in_the_script():

tests/test_desktop_runtime_preflight.py

@@ -63,14 +63,14 @@ def test_ready_linux_host_has_no_problem() -> None:
     assert _probe("linux", "ID=fedora", xdo=True, audio_sink=True)["problem"] is None
 
 
-def test_every_source_launcher_runs_the_preflight() -> None:
+def test_legacy_tauri_launchers_run_the_webkit_preflight() -> None:
     for relative_path in ("scripts/desktop-dev.mjs", "scripts/desktop-prod.mjs"):
         launcher = (_ROOT / relative_path).read_text()
         assert 'from "./desktop-runtime-preflight.mjs"' in launcher
         assert "if (!desktopRuntimeReady()) process.exit(1);" in launcher
 
     package = json.loads((_ROOT / "package.json").read_text())
-    predesktop = package["scripts"]["predesktop"]
+    predesktop = package["scripts"]["pretauri"]
     assert "desktop-runtime-preflight.mjs" in predesktop
     assert predesktop.index("desktop-runtime-preflight.mjs") < predesktop.index("clear-dev-ports.mjs")
 

tests/test_voicestudio_branding.py

@@ -110,9 +110,9 @@ def test_compatibility_identifiers_stay_stable() -> None:
     ).read_text()
 
 
-def test_source_launch_cleans_idle_ports_quietly() -> None:
+def test_legacy_source_launch_cleans_idle_ports_quietly() -> None:
     scripts = json.loads((ROOT / "package.json").read_text())["scripts"]
-    for name in ("predev", "predesktop"):
+    for name in ("predev:web", "pretauri"):
         command = scripts[name]
         assert "bun scripts/clear-dev-ports.mjs 3900 3901" in command
         assert "|| true" not in command
@@ -124,3 +124,13 @@ def test_icon_rail_has_no_static_section_captions_and_keeps_air_between_items()
         assert stale_caption not in rail
     assert "pt-[18px]" in rail
     assert "gap-[9px]" in rail
+
+
+def test_electron_launch_preserves_an_existing_backend():
+    scripts = json.loads((ROOT / "package.json").read_text())["scripts"]
+    for name in ("predev", "predesktop"):
+        assert "clear-dev-ports" not in scripts[name]
+        assert "desktop-runtime-preflight" not in scripts[name]
+    assert scripts["dev"] == "bun run --cwd electron dev"
+    assert scripts["desktop-prod:run"] == "bun run start"
+    assert scripts["start"] == "bun run --cwd electron start"