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vc-git-grep vs project-find-regexp


From: Nicolás Ojeda Bär
Subject: vc-git-grep vs project-find-regexp
Date: Mon, 21 Aug 2023 17:29:47 +0200

Hello,

I have used M-x vc-git-grep for a long time, but decided to give M-x
project-find-regexp a try after switching to 29.1.

While it seems to work well, project-find-regexp seems much slower
than vc-git-grep. After you execute the command, it pauses for what it
feels a long time (~2s in a medium-size codebase) before showing the
results. vc-git-grep on the other hand, starts displaying results
immediately.

Is there a good reason for this difference? The only visible
difference between both commands is that project-find-regexp's results
are displayed in a XREF buffer while vc-git-grep uses Grep mode.

Insights appreciated!

Best wishes,
Nicolas



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