feat: sha256:30637a38c2c205fb4bbc0568ed26ce4c8dc05636ad069a8486019d224f4b3c20 · gabriel/muse

feat(verify): snapshot store sweep, nothing_checked flag, zero-byte detection

Three supercharges to muse verify:

1. Snapshot store sweep — after BFS walk from branch refs, also checks every .muse/snapshots/*.msgpack not yet visited. Catches missing objects after partial clones where the branch ref file was never written (clone crashed before the final step). Previously these repos showed all_ok=True because the BFS found 0 branch refs and checked nothing.

2. nothing_checked flag — VerifyResult and --json output now include nothing_checked: bool. True when refs=0, commits=0, and snapshots=0, meaning the repo was structurally empty. Distinguishes 'clean' from 'nothing was checked' for scripts and repair tools.

3. Zero-byte object detection — always flags object files with st_size==0 as corruption, even with --no-objects / check_objects=False. Zero bytes cannot match any real SHA-256 OID (e3b0c442… is the empty-bytes hash). Previously these slipped through --no-objects undetected.

9 new tests in TestVerifySupercharged covering all three capabilities plus edge cases (no double-reporting, sweep deduplication, orphan snapshots with present vs missing objects).

+10

symbols added

symbols modified

dead code introduced

Semantic Changes 16 symbols

~ muse/cli/commands/verify.py .py 2 symbols modified

~ _VerifyJson

~ run

~ muse/core/verify.py .py 3 symbols modified

~ VerifyResult

~ _make_result

~ run_verify

~ tests/test_cmd_verify.py .py 10 symbols added, 1 symbol modified

+ TestVerifySupercharged class class TestVerifySupercharged L103–251

+ test_json_output_includes_nothing_checked method method test_json_output_includes_nothing_checked L243–251

+ test_nothing_checked_false_when_commits_exist method method test_nothing_checked_false_when_commits_exist L111–115

+ test_nothing_checked_true_when_no_refs_and_no_snapshots method method test_nothing_checked_true_when_no_refs_and_no_snapshots L117–120

+ test_orphan_snapshot_with_missing_object_detected method method test_orphan_snapshot_with_missing_object_detected L122–135

+ test_orphan_snapshot_with_present_object_passes method method test_orphan_snapshot_with_present_object_passes L137–149

+ test_partial_clone_missing_objects_detected method method test_partial_clone_missing_objects_detected L151–177

+ test_snapshot_sweep_does_not_recheck_already_verified method method test_snapshot_sweep_does_not_recheck_already_verified L235–241

+ test_zero_byte_object_flagged_without_check_objects method method test_zero_byte_object_flagged_without_check_objects L179–206

+ test_zero_byte_object_not_double_reported method method test_zero_byte_object_not_double_reported L208–233

~ test_verify_empty_repo_no_failures

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