# DiffSeeker

DiffSeeker scans directory trees, records file metadata plus content hashes, and supports cross-volume comparison for:
- duplicates (same hash + size) across volumes
- missing files (present on one volume, absent on others by hash+size)
- suspicious divergences (same name, different size)

## Python CLI (mpchunkcfa compatible)

Install (editable dev install):
```bash
pip install -e .
```

Scan a directory and emit CSV:

```bash
mpchunkcfa --walk /path/to/root -V "VOL_A" -c vol_a.csv
```

Scan and ingest into SQLite:

```bash
mpchunkcfa --walk /path/to/root -V "VOL_A" --db diffseeker.db
```

Exclude directory elements (repeatable):

```bash
mpchunkcfa --walk . -V "VOL_A" --exclude .git --exclude .svn
```

## Data model

Each file record includes:
name, relative_path, extension, size, creation_date, modified_date,
hash_value, file_type, number_of_files, volume_name.


## 5) Notes on compatibility and correctness

- Your earlier runtime error (`root` undefined in worker) is eliminated by passing `root` and `directory` into `_compute_record`.
- The exclusion logic is **path-element based**, so `.gitignore` is not excluded when excluding `.git`.
- `creation_date` is OS-dependent semantics (ctime on Unix). If you later want “birth time” portability, we can normalize explicitly per platform.