fix(augment): make hook installation transactional

tests/test_augment_official.py

@@ -0,0 +1,62 @@
+from __future__ import annotations
+
+import os
+from pathlib import Path
+import shutil
+import subprocess  # nosec B404
+
+import pytest
+
+from augment_support import prepare_fixture
+
+
+AUGGIE_ENTRY = os.environ.get("ELYDORA_AUGGIE_ENTRY")
+
+
+@pytest.mark.skipif(
+    AUGGIE_ENTRY is None,
+    reason="set ELYDORA_AUGGIE_ENTRY to the official Auggie entry file",
+)
+def test_official_auggie_accepts_installed_user_hook_contract(
+    monkeypatch: pytest.MonkeyPatch, tmp_path: Path
+) -> None:
+    node = shutil.which("node")
+    assert node is not None
+    assert AUGGIE_ENTRY is not None
+    fixture = prepare_fixture(monkeypatch, tmp_path)
+    fixture.install()
+    environment = {
+        **os.environ,
+        "HOME": str(fixture.home_dir),
+        "USERPROFILE": str(fixture.home_dir),
+    }
+    version = subprocess.run(  # nosec B603
+        [node, AUGGIE_ENTRY, "--version"],
+        capture_output=True,
+        check=False,
+        cwd=fixture.project_dir,
+        env=environment,
+        text=True,
+        timeout=10,
+    )
+    assert version.returncode == 0, version.stderr
+    assert "0.33.0" in version.stdout
+
+    load = subprocess.run(  # nosec B603
+        [node, AUGGIE_ENTRY, "tools", "list"],
+        capture_output=True,
+        check=False,
+        cwd=fixture.project_dir,
+        env=environment,
+        text=True,
+        timeout=15,
+    )
+    assert load.returncode == 0, load.stderr
+    output = f"{load.stdout}\n{load.stderr}".lower()
+    for error in (
+        "invalid settings",
+        "settings validation",
+        "failed to parse",
+        "hook configuration error",
+    ):
+        assert error not in output