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During the file processing in process_files, there was a time-of-check to time-of-use (TOCTOU) race condition where a file could be deleted between path.exists() check and read_to_string() call. This commit handles ErrorKind::NotFound error when reading the file. If the file is not found, we assume it was deleted and remove it from the index, similar to how explicit deletion events are handled. Fixes PlatformNetwork/bounty-challenge#90
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Description
The
process_files()function insrc/watcher.rshad a time-of-check to time-of-use (TOCTOU) race condition. A file could be deleted between thepath.exists()check and the subsequentread_to_string()call, causing silent failures.This PR addresses the issue by handling
ErrorKind::NotFoundwhen reading the file. If the file is not found during the read operation, it is treated as deleted and removed from the index.Changes
process_filesinsrc/watcher.rsto match onread_to_stringresult.ErrorKind::NotFoundto handle the race condition.NotFoundoccurs, the code now attempts to remove the file from the database and logs the race condition handling.Verification
path.exists()returns true but the file is gone by the timeread_to_string()is called.