VCS segment very slow in Mercurial repositories #2206
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benjunmun
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May 23, 2022
Mercurial creates temporary files in the .hg directory while running certain commands. The creation of these should not invalidate the tree status cache for the repository. Fixes powerline#2206
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After a recent OS upgrade, I've been having issues with my bash status line rendering very slowly while navigating around mercurial repositories.
I don't have a complete understanding of why this was not an issue before the upgrade. However, I have traced part of the problem to a temporary file that mercurial is creating/deleting in the .hg folder on every status operation. This invalidates powerline's VCS tree status cache and causes it to re-run the full status on every render.
I suspect there may be other contributing factors, but I'll submit a patch for ignoring the temporary files. Status is still noticeably slow when any file changes, but this at least makes the segment usable again for me.
Environment:
Latest git version of powerline (8af6302)
Linux / Ubuntu 22.04
Python 3.10.4
Mercurial 6.1.1
hglib 2.6.2
inotify watcher
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