Non-standard cache location

[Qu4tro]

Expected behavior

Cache directory to be within $XDG_CACHE_HOME and default to be within $HOME/.cache i.e. $HOME/.cache/container-diff

Actual behavior

Cache directory is on .container-diff/cache which is a non-standard location.

Information

• container-diff version: 0.15.0
• Operating system: Arch Linux

Steps to reproduce the behavior

1. Use container-diff

[nkubala]

@Qu4tro thanks for the issue! our team unfortunately doesn't have the engineering bandwidth to address issues on this tool right now, but this is a reasonable request. if anyone is interested in helping out with this, we're happy to accept contributions :)