https://bugs.kde.org/show_bug.cgi?id=481473
Bug ID: 481473
Summary: File associations do not de-duplicate applications
using X-KDE-AliasFor, resulting in some applications
being shown twice or more
Classification: Applications
Product: systemsettings
Version: 5.93.0
Platform: Arch Linux
OS: Linux
Status: REPORTED
Keywords: qt6
Severity: normal
Priority: NOR
Component: kcm_filetypes
Assignee: plasma-b...@kde.org
Reporter: adam.m.fontenot+...@gmail.com
CC: fa...@kde.org
Target Milestone: ---
SUMMARY
For reasons unknown to me, some KDE applications (e.g. Okular) have multiple
.desktop files for different filetypes. Okular, for example, has
`okularApplication_md.desktop` and `okularApplication_txt.desktop`, along with
many others.
This causes an issue in that all Markdown (.md) files are also plain text
(.txt) files. So if you try to open a Markdown file, you'll see Okular twice in
the list of possible applications.
Unless applications are supposed to *never* have multiple .desktop entries, KDE
needs to deduplicate these. It appears that the way KDE applications are
indicating the use of multiple .desktop entries is via the use of the
`X-KDE-AliasFor` line, e.g.
X-KDE-AliasFor=org.kde.okular.desktop
Similarly, if a user assigns an application to a file type (e.g. I have Okular
set to open PDF files), and the application also inherits the file type via a
different .desktop file (e.g. okularApplication_pdf.desktop), the application
will be shown twice for the file.
KDE should most likely only add the first entry that appears in its search with
a specific alias to the applications that can open a given file type.
STEPS TO REPRODUCE
1. Make a simple Markdown (.md) file.
2. Right click the file and see what applications Dolphin gives you to open it.
OBSERVED RESULT
Okular appears in the list twice.
EXPECTED RESULT
Okular appears in the list once.
SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.93.0
KDE Frameworks Version: 5.249.0
Qt Version: 6.7.0
Kernel Version: 6.7.4-arch1-1 (64-bit)
Graphics Platform: Wayland
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