--- Comment #21 from Sven Brauch <m...@svenbrauch.de> ---
Git commit 77b83054f943b6c9bce0da178732f7992f7ada3b by Sven Brauch.
Committed on 13/10/2016 at 18:52.
Pushed by brauch into branch '5.0'.
Remove mime type <-> extension cache
The idea that because one file with extension X has mime type A,
determined by its contents, hence other files with extension X will
have the same mime type is just wrong. One common example where this
breaks in a spectacular way is CMakeLists.txt and the .txt extension.
I found the claim that looking into each file will make the application
unresponsive to be unfounded. QMimeType will only read the first 16kB to
guess the mime type, which takes less than a millisecond for each file.
A test project with three hundred 3 MB binary blobs still loads instantly.
If, in comparison, we parse one of the files as CMake erraneously, we
take multiple seconds.
Differential Revision: https://phabricator.kde.org/D3042
M +1 -35 shell/languagecontroller.cpp
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