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- 9 commits
- 18 files changed
- 1 contributor
Commits on Jan 27, 2021
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Add a new Cmd type working on RealisedPaths
Where a `RealisedPath` is a store path with its history, meaning either an opaque path for stuff that has been directly added to the store, or a `Realisation` for stuff that has been built by a derivation This is a low-level refactoring that doesn't bring anything by itself (except a few dozen extra lines of code :/ ), but raising the abstraction level a bit is important on a number of levels: - Commands like `nix build` have to query for the realisations after the build is finished which is fragile (see 27905f1 for example). Having them oprate directly at the realisation level would avoid that - Others like `nix copy` currently operate directly on (built) store paths, but need a bit more information as they will need to register the realisations on the remote side
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Don't crash nix-build when not all outputs are realised
Change the `nix-build` logic for linking/printing the output paths to allow for some outputs to be missing. This might happen when the toplevel derivation didn't have to be built, either because all the required outputs were already there, or because they have all been substituted.
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Test the garbage collection of CA derivations
Simple test to ensure that `nix-build && nix-collect-garbage && nix-build -j0` works as it should
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Register the realisations for unresolved drvs
Once a build is done, get back to the original derivation, and register all the newly built outputs for this derivation. This allows Nix to work properly with derivations that don't have all their build inputs available − thus allowing garbage collection and (once it's implemented) binary substitution
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Use
RealisedPaths incopyPathsThat way we can copy the realisations too (in addition to the store paths themselves)
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