Subject: bug#78545: 31.0.50; project-mode-line is slow because it tries to read files on each update

From: Dmitry Gutov <[email-masked]>
Date: Fri, 23 May 2025 03:37:21 +0300

On 22/05/2025 18:53, Daniel Colascione wrote:
> We could also just have the IO functions signal error if called during a mode line update.

The first 'project-current' call might as well happen during the 
mode-line refresh, when the project root is not cached. What's 
problematic is having these calls do I/O every time.