itzg/docker-mc-backup

Support for normal `.zip` compression

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#262 opened on Jan 25, 2026

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enhancementhelp wanted

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Description

Hey, it would be really awesome if there was a way of creating .zip backups. Currently I use the default gzip configuration, and when trying to open the .tgz archive using 7zip there is a weird folder structure inside and I am not sure if this is supposed to look like this:

[backup-20251225-205201.tgz]
 '- [backup-20251225-205201.tar]
     '- [.] (Just a folder called ".")
         |- [<...>]
         '- [<...>] (all the files from the backup)

It would be really nice if I could just specify BACKUP_METHOD='zip' and this would create .zip backups.

Thanks.

Contributor guide

Research direction
Explore the backup script to understand how compression method is selected, then implement zip compression support.
Tech stack
shell
Domain
backend
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Git
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
80