75cc52ddb1
Previously, we were assembling very naively an attribute set composed of context we saw. But it was forgetting that `"${drv}${drv.drvPath}"` would contain 2 contexts with the same key, but with different values, one with `outputs = [ "out" ];` and `allOutputs = true;`. Following this reasoning and comparing with what Nix does, we ought to merge underlying values systematically. Hence, I bring `itertools` to perform a group by on the key and merge everything on the fly, it's not beautiful but it's the best I could find, notice that I don't use `group_by` but I talk about group by, that is, because `group_by` is a `group_by_consecutive`, see https://github.com/rust-itertools/itertools/issues/374. Initially, I tried to do it without a `into_grouping_map_by`, it was akin to assemble the final `NixAttrs` directly, it was less readable and harder to pull out because we don't have a lot of in-place mutable functions on our data structures. Change-Id: I9933c9bd88ffe04de50dda14f21879b60d8b8cd4 Reviewed-on: https://cl.tvl.fyi/c/depot/+/10620 Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su> |
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