Fix slow patch checking with commits that add or remove many files (#31548) #31560
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…o-gitea#31548) Running git update-index for every individual file is slow, so add and remove everything with a single git command. When such a big commit lands in the default branch, it could cause PR creation and patch checking for all open PRs to be slow, or time out entirely. For example, a commit that removes 1383 files was measured to take more than 60 seconds and timed out. With this change checking took about a second. This is related to go-gitea#27967, though this will not help with commits that change many lines in few files.
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Backport #31548 by @brechtvl
Running git update-index for every individual file is slow, so add and remove everything with a single git command.
When such a big commit lands in the default branch, it could cause PR creation and patch checking for all open PRs to be slow, or time out entirely. For example, a commit that removes 1383 files was measured to take more than 60 seconds and timed out. With this change checking took about a second.
This is related to #27967, though this will not help with commits that change many lines in few files.