Bug 514184

Summary: Tar gunzip archive without tar.gz extensions is extracted to a gz archive, not fully (unlike what tar does) using context menu
Product: [Applications] ark Reporter: tomashnyk
Component: generalAssignee: Elvis Angelaccio <elvis.angelaccio>
Status: CONFIRMED ---    
Severity: normal CC: dolphin-bugs-null, oliver.schramm97, rthomsen6
Priority: NOR    
Version First Reported In: 25.12.0   
Target Milestone: ---   
Platform: Other   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: Video showing how Dolphin does it and how tar does it

Description tomashnyk 2026-01-05 13:40:47 UTC
Created attachment 188236 [details]
Video showing how Dolphin does it and how tar does it

SUMMARY
Whjen you have a tar archive that was compressed with gunzip, but this is not reflected in the filename, when  it is extracted via context menu using Extract > Extract here, it is extracted into a gunzip archive, not the underlying files. This is unlike what tar does. I am attaching a video for better ilustration.

STEPS TO REPRODUCE
1. In terminal, run:
touch a b
tar -czf aa.tar a b # this creates a tar archive with applied gunzip compression containing files a and b
rm a b
2.  Extract aa.tar using context menu Extract > Extract here

OBSERVED RESULT
A gunzip archive called aa is created.

EXPECTED RESULT
Two files a and b are created, like running tar "-xvf aa.tar" does.

SOFTWARE/OS VERSIONS
Operating System: Fedora Linux 43
KDE Plasma Version: 6.5.4
KDE Frameworks Version: 6.21.0
Qt Version: 6.10.1
Kernel Version: 6.17.12-300.fc43.x86_64 (64-bit)
Graphics Platform: Wayland
Processors: 16 × Intel® Core™ i9-9880H CPU @ 2.30GHz
Memory: 64 GiB of RAM (62.5 GiB usable)
Graphics Processor 1: Intel® UHD Graphics 630
Graphics Processor 2: NVIDIA GeForce GTX 1650 with Max-Q Design
Comment 1 Oliver Schramm 2026-01-05 23:17:21 UTC
Can confirm with Ark 25.12.
Also, when opening the aa file from the first "Extract here" process within Dolphin (with having the "Browse compressed files as folders" option enabled), Dolphin can't.

And:
When opening the aa.tar from the command with Ark, it shows just a simple "aa" entry (opening that will open a new Ark window showing the a and b files)
When opening the aa.tar from the command with Dolphin with that enabled option, it shows the a and b files directly.

Operating System: Fedora Linux 43
KDE Plasma Version: 6.5.4
KDE Frameworks Version: 6.21.0
Qt Version: 6.10.1