4d1ca47777
When renaming a file its hash can't be used in the WHERE condition in the UPDATE statement since there _can_ be more than one file having the same hash and not all of them are renamed just the one not existing anymore. So we need to use the old path (now non-existent) to specify the record to update. To make the code more clear I also added setting the hash explicitly in the UPDATE statement.
====== bitrot ====== Detects bit rotten files on the hard drive to save your precious photo and music collection from slow decay. Usage ----- Go to the desired directory and simply invoke:: $ bitrot This will start digging through your directory structure recursively indexing all files found. The index is stored in a ``.bitrot.db`` file which is a SQLite 3 database. Next time you run ``bitrot`` it will add new files and update the index for files with a changed modification date. Most importantly however, it will report all errors, e.g. files that changed on the hard drive but still have the same modification date. All paths stored in ``.bitrot.db`` are relative so it's safe to rescan a folder after moving it to another drive. Performance ----------- Obviously depends on how fast the underlying drive is. No rigorous performance tests have been done. For informational purposes, a typical 5400 RPM laptop hard drive scanning a 60+ GB music library takes around 15 minutes. On an OCZ Vertex 3 SSD drive ``bitrot`` is able to scan a 100 GB Aperture library in under 10 minutes. Both tests on HFS+. Change Log ---------- 0.6.0 ~~~~~ * more control over performance with ``--commit-interval`` and ``--chunk-size`` command-line arguments * bugfix: symbolic links are now properly skipped (or can be followed if ``--follow-links`` is passed) * bugfix: files that cannot be opened are now gracefully skipped * bugfix: fixed a rare division by zero when run in an empty directory 0.5.1 ~~~~~ * bugfix: warn about test mode only in test mode 0.5.0 ~~~~~ * ``--test`` command-line argument for testing the state without updating the database on disk (works for testing databases you don't have write access to) * size of the data read is reported upon finish * minor performance updates 0.4.0 ~~~~~ * renames are now reported as such * all non-regular files (e.g. symbolic links, pipes, sockets) are now skipped * progress presented in percentage 0.3.0 ~~~~~ * ``--sum`` command-line argument for easy comparison of multiple databases 0.2.1 ~~~~~ * fixed regression from 0.2.0 where new files caused a ``KeyError`` exception 0.2.0 ~~~~~ * ``--verbose`` and ``--quiet`` command-line arguments * if a file is no longer there, its entry is removed from the database 0.1.0 ~~~~~ * First published version. Authors ------- Glued together by `Łukasz Langa <mailto:lukasz@langa.pl>`_. Multiple improvements by `Yang Zhang <mailto:yaaang@gmail.com>`_.