fetchTree/fetchGit: re-enable shallow fetching#9811
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thufschmitt merged 1 commit intoNixOS:masterfrom Jan 19, 2024
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| && {repo.git} push origin --all | ||
| """) | ||
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| # memoize the revisions |
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Suggested change
| # memoize the revisions | |
| # save the revision |
Not lazy.
| gitea.succeed(f""" | ||
| git init --bare -b main /root/{self.name} | ||
| git init --bare -b main /root/{self.name} \ | ||
| && git config --global uploadpack.allowAnySHA1InWant true |
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What is the purpose of uploadpack.allowAnySHA1InWant here; could you add a comment?
I assume it's not a problem for Nix users because this happens on the gitea host for some initialization purpose - not on a clone that is a normal client.
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I removed this line.
I thought we need this setting to enable shallow cloning via ssh by revision, but it seems it's not needed.
Add several tests for git fetching: - shallow-cache-separation: can fetch the same repo shallowly and non-shallowly - shallow-ignore-ref: ensure that ref gets ignored when shallow=true is set - ssh-shallow: can fetch a git repo via ssh using shallow=1
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Discussed during the maintainers meeting today. Good to go 🚀 Details- @edolstra: Worried that this entranches us in a Git-cli specific behavior and makes it harder to move to libGit2 - @thufschmitt: It's quite unlikely that we'll be able to use libgit everywhere given the missing features. So it shouldn't be too much of a problem - That leaves us with 2 dependencies for the same thing, but probably won't be avoidable because lazy trees isn't really implementable with the Git cli - @Ericson2314: Could we add the missing features in libgit2? - ~500 lines of python elsewhere; probably more C++ needed, and it's security sensitive... Too much effort to make this a priority - @edolstra: We could also not support credential helpers at all - But would be really annoying for a number of users
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This pull request has been mentioned on NixOS Discourse. There might be relevant details there: https://discourse.nixos.org/t/2024-01-19-nix-team-meeting-minutes-116/38837/1 |
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Motivation
Add back shallow fetching after it has been removed by #9806
based on #9806
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