SQLite-backed local snapshot store

tests/test_local_snapshot_store.py

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+from pathlib import Path
+
+from click.testing import CliRunner
+
+from markitect_tool.backend import LocalSnapshotStore, local_index_path_for
+from markitect_tool.cli import main
+
+
+def test_local_snapshot_store_persists_state_and_document(tmp_path: Path):
+    source = tmp_path / "doc.md"
+    source.write_text("---\ntitle: Example\n---\n# Doc\n\nBody.\n", encoding="utf-8")
+    store = LocalSnapshotStore(tmp_path / ".markitect" / "cache" / "index.sqlite3")
+
+    state = store.put_file(source, root=tmp_path)
+    loaded = store.load_state()
+    document = store.get_document("doc.md")
+
+    assert state.path == "doc.md"
+    assert state.snapshot_id.startswith("snapshot:")
+    assert loaded[0].path == "doc.md"
+    assert loaded[0].content_hash == state.content_hash
+    assert document["frontmatter"]["title"] == "Example"
+    assert document["headings"][0]["text"] == "Doc"
+
+
+def test_local_snapshot_store_build_is_incremental(tmp_path: Path):
+    source = tmp_path / "doc.md"
+    source.write_text("# Doc\n", encoding="utf-8")
+    store = LocalSnapshotStore(local_index_path_for(tmp_path))
+
+    first = store.build([tmp_path], root=tmp_path)
+    second = store.build([tmp_path], root=tmp_path)
+
+    assert first.parsed == ["doc.md"]
+    assert first.indexed == ["doc.md"]
+    assert second.parsed == []
+    assert second.indexed == []
+    assert not second.dirty
+
+    source.write_text("# Doc\n\nChanged.\n", encoding="utf-8")
+    changed = store.build([tmp_path], root=tmp_path)
+
+    assert changed.parsed == ["doc.md"]
+    assert changed.indexed == ["doc.md"]
+
+
+def test_local_snapshot_store_deletes_removed_files(tmp_path: Path):
+    source = tmp_path / "doc.md"
+    source.write_text("# Doc\n", encoding="utf-8")
+    store = LocalSnapshotStore(local_index_path_for(tmp_path))
+    store.build([tmp_path], root=tmp_path)
+
+    source.unlink()
+    result = store.build([tmp_path], root=tmp_path)
+
+    assert result.deleted == ["doc.md"]
+    assert store.load_state() == []
+
+
+def test_mkt_ast_show_and_stats(tmp_path: Path):
+    source = tmp_path / "doc.md"
+    source.write_text("# Doc\n\nBody.\n", encoding="utf-8")
+    runner = CliRunner()
+
+    shown = runner.invoke(main, ["ast", "show", str(source), "--format", "tree"])
+    stats = runner.invoke(main, ["ast", "stats", str(source)])
+
+    assert shown.exit_code == 0
+    assert "# Doc" in shown.output
+    assert stats.exit_code == 0
+    assert "headings: 1" in stats.output
+    assert "paragraph_open" in stats.output
+
+
+def test_mkt_cache_init_and_index(tmp_path: Path):
+    source = tmp_path / "doc.md"
+    source.write_text("# Doc\n", encoding="utf-8")
+    runner = CliRunner()
+
+    initialized = runner.invoke(main, ["cache", "init", "--root", str(tmp_path)])
+    indexed = runner.invoke(main, ["cache", "index", str(tmp_path), "--root", str(tmp_path)])
+    clean = runner.invoke(main, ["cache", "index", str(tmp_path), "--root", str(tmp_path)])
+
+    assert initialized.exit_code == 0
+    assert "schema_version: 1" in initialized.output
+    assert indexed.exit_code == 0
+    assert "parsed: 1" in indexed.output
+    assert clean.exit_code == 0
+    assert "clean" in clean.output