Re: Parallel guix builds can trample?

[Maxime Devos]

Hi,

Phil Beadling schreef op ma 17-01-2022 om 17:23 [+0000]:
> For each build that is kicked off in quick succession the local cache
> of the repo required updated by update-cached-checkout
>  * https://github.com/guix-
> mirror/guix/blob/9f526f5dad5f4af69d158c50369e182305147f3b/guix/git.sc
> m#L476
>  * https://github.com/guix-
> mirror/guix/blob/9f526f5dad5f4af69d158c50369e182305147f3b/guix/git.sc
> m#L279


Maybe 'latest-repository-commit' and 'update-cached-checkout' commit
can be modified to not use 'switch-to-ref', and instead directly ask
libgit ‘what's the tree structure of commit cabba9e’ and call a
procedure like 'add-file-tree-to-store'.  That would avoid lock files,
creating separate directories for concurrent checkouts, ...

Greetings,
Maxime.

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