Protect file access within shell commands via a wrapper that adds cooperative locking.
This small tool decorates existing command(s) that work on a single text file (and assume unfettered access) with protections for concurrent accesses via file locking of a separate lock file, thereby providing support for simple transactions, with multiple concurrent reads, a singular write (and a command to update from read to write), and rollback of any updates done under the transaction.
- Bash
flockfor transaction support- automated testing is done with Bats - Bash Automated Testing System
- The
./binsubdirectory is supposed to be added toPATH.