Yolops Devops Toolbox

Cache expiration

This command helps clean up a cache directory. It can be used for tasks such as:

• cleaning up a proxy cache directory (Apache, Perforce, …)
• expiring Unreal Engine cache date (shared DDC, cooked data, packages…)

yolops expire-cache [OPTIONS] <directories…>

A min-max heap is used to keep memory usage as low as possible, even when scanning millions of files.

Options

Directories are scanned recursively and files deleted based on the given policy:

• --lru: LRU, or least recently used; delete older files first (default behaviour)
• --mru: MRU, or most recently used; delete newer files first
• --random: delete files randomly

Operating mode is chosen with one of the following options:

• --delete <size>: delete size bytes of data
• --keep <size>: keep at most size bytes of data, effectively limiting the total size of the directories
• --ensure-free <size>: delete files until at least size bytes of data are available on the filesystem

Sizes can be specified in bytes, or with any common unit, eg: 10G, 1.5T, 128MiB…

Other useful options:

• -v, --verbose: verbose output
• -n, --dry-run: do not actually delete files (useful with -v)

Examples

Clean up old files until at least 10 GiB of data are available on the filesystem:

yolops expire-cache --ensure-free 10GiB /srv/p4proxy

Ensure Unreal Engine cooked data does not exceed 50 GiB:

yolops expire-cache --keep 50GiB */*/Saved/Cooked

Attempt to free 200 MiB of data from various directories:

yolops expire-cache --delete 200MiB */*/Intermediate