https://bugs.kde.org/show_bug.cgi?id=436738
Bug ID: 436738
Summary: docdata duplicated each time pdf is edited
Product: okular
Version: 20.12.3
Platform: Archlinux Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: okular-de...@kde.org
Reporter: pbs3...@googlemail.com
Target Milestone: ---
SUMMARY
In a typical TeX workflow, a user works on a tex file which they periodically
use to generate a pdf file. It is common to have the pdf file open in Okular,
so that when the pdf file is regenerated, it automatically reloads.
The bug is that each time this happens, Okular writes a new xml file to the
docdata folder. This results in docdata being filled with huge numbers of
identical files. As a result, mine has now reached an impressive size of 25,895
files.
The same problem also occurs when using LyX according to its intended workflow.
Each time one hits Ctrl+R to view the document, or Ctrl+Shift+R to refresh the
document if already open, one gets a new docdata entry.
STEPS TO REPRODUCE
Simply run the following bash script, which simulates the effect of a user
making regular updates to a pdf file.
#! /bin/bash
pdftex "\TeX \end" > /dev/null
okular ./texput.pdf &
while true; do
sleep 1
pdftex "\TeX $(pwgen -N 1) \end" > /dev/null
find ~/.local/share/okular/docdata -name "*.texput.pdf.xml" | wc -l
done
OBSERVED RESULT
The script prints an ever-increasing sequence of numbers, indicating the
presence of xml files piling up in docdata.
EXPECTED RESULT
The should repeatedly print out "1".
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