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https://github.com/ilyakooo0/haskell.nix.git
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d1102d342c
* Include `tests` in path for cross compiled tests * Add ghc-boot-packages-nix to haskellNixRoots * Fix naming warnings in tests sources * Uses a single cleanGit call for all the tests * Add memoize code for ghc-boot and ghc-extra pkgs * Memoize ghc-boot and ghc-extra pkgs nix * Fix release.nix being more strict than ci.nix by updating filterAttrsOnlyRecursive in ci-lib.nix * Nicer errors when materialized path does not exist * Updated materialization docs * Add internalHackageIndexState to set the index-state used within haskell.nix
46 lines
2.2 KiB
Nix
46 lines
2.2 KiB
Nix
let
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# Generic nixpkgs, use *only* for lib functions that are stable across versions
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pkgs = import (import ./nixpkgs/default.nix).nixpkgs-default {};
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lib = pkgs.lib;
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in rec {
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inherit (import ./dimension.nix) dimension;
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# A filter for removing packages that aren't supported on the current platform
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# according to 'meta.platforms'.
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platformFilterGeneric = pkgs: system:
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# This needs to use the correct nixpkgs version so all the systems line up
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let lib = pkgs.lib;
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platform = lib.systems.elaborate { inherit system; };
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# Can't just default to [] for platforms, since no meta.platforms
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# means "all platforms" not "no platforms"
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in drv : if drv ? meta && drv.meta ? platforms then
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lib.any (lib.meta.platformMatch platform) drv.meta.platforms
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else true;
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# Hydra doesn't like these attributes hanging around in "jobsets": it thinks they're jobs!
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stripAttrsForHydra = filterAttrsOnlyRecursive (n: _: n != "recurseForDerivations" && n != "dimension");
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# Keep derivations and attrsets with 'recurseForDerivations'. This ensures that we match the
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# derivations that Hercules will see, and prevents Hydra from trying to pick up all sorts of bad stuff
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# (like attrsets that contain themselves!).
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filterDerivations = filterAttrsOnlyRecursive (n: attrs: lib.isDerivation attrs || attrs.recurseForDerivations or false);
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# A version of 'filterAttrsRecursive' that doesn't recurse into derivations. This prevents us from going into an infinite
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# loop with the 'out' attribute on derivations.
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# TODO: Surely this shouldn't be necessary. I think normal 'filterAttrsRecursive' will effectively cause infinite loops
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# if you keep derivations and your predicate forces the value of the attribute, as this then triggers a loop on the
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# 'out' attribute. Weird.
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# To make this function faster, unwanted attributes are mapped to {} instead of being
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# removed. This keeps the function lazy and avoids unwanted evaluation of sibling
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# derivations.
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filterAttrsOnlyRecursive = pred: set:
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lib.mapAttrs (name: v:
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if pred name v
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then
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if builtins.isAttrs v
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&& !lib.isDerivation v
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then filterAttrsOnlyRecursive pred v
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else v
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else {}) set;
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}
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