https://bugs.kde.org/show_bug.cgi?id=458775
Bug ID: 458775
Summary: File type detection fails on reload after external
change
Product: kate
Version: 22.04.3
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: application
Assignee: kwrite-bugs-n...@kde.org
Reporter: kde.b...@cricalix.net
Target Milestone: ---
SUMMARY
Mutating a file outside of Kate causes Kate to offer a reload option. Taking
that option will result in Kate "forgetting" that the file is of a particular
type (Python in my case), and disables type-specific behaviours like syntax
highlighting and LSP usage.
STEPS TO REPRODUCE
1. Install pylsp
2. Install black, flake8 plugins for pylsp
3. Edit a python file with Kate - ensure the file type is detected as Python,
with syntax highlighting etc
4. Save the file with content that black will fix (extra long lines or
whatever)
5. Mutate the file outside of Kate with black <filename>
6. Back to Kate, accept the reload of the file
OBSERVED RESULT
Syntax highlighting and LSP support stop working; Kate appears to treat the
file as text/plain, not Python. Detected language in the bottom right is still
Python.
Clicking the detected language, and then clicking the already-ticked Python
causes Kate to re-apply syntax highlighting and LSP support for Python.
EXPECTED RESULT
Upon reload, Kate considers the file to be Python still, with syntax
highlighting and LSP support.
SOFTWARE/OS VERSIONS
Operating System: Kubuntu 22.04
KDE Plasma Version: 5.24.6
KDE Frameworks Version: 5.95.0
Qt Version: 5.15.3
Kernel Version: 5.15.0-47-generic (64-bit)
Graphics Platform: X11
Processors: 24 × AMD Ryzen 9 5900X 12-Core Processor
Memory: 31.3 GiB of RAM
Graphics Processor: NVIDIA GeForce RTX 3060 Ti/PCIe/SSE2
ADDITIONAL INFORMATION
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