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Force use of passAsFile for doc inputs for hoogle build #4

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Merged
michaelpj merged 1 commit into from
May 27, 2026
Merged

Force use of passAsFile for doc inputs for hoogle build #4

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18 changes: 15 additions & 3 deletions builder/default.nix
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Original file line number Diff line number Diff line change
Expand Up @@ -69,9 +69,21 @@ let
else ghc;
inherit packages hoogle;
};
in haskellLib.weakCallPackage pkgs nixpkgsHoogle {
inherit haskellPackages;
} (p: p.packages);
base = haskellLib.weakCallPackage pkgs nixpkgsHoogle {
inherit haskellPackages;
} (p: p.packages);
in
# nixpkgs's hoogle.nix inherits the transitive doc closure into a
# `docPackages` env var. On large package sets `docPackages=<paths>\0`
# crosses Linux's per-string MAX_ARG_STRLEN (32 * PAGE_SIZE = 131072
# bytes), so `execve` rejects the build with E2BIG before the builder
# runs. The value is only consumed at Nix eval time — the haddock paths
# are already inlined into `buildCommand` (which keeps their references
# tracked) — so blanking the env var is safe. Fixed upstream by moving
# the attribute to passthru; drop this once our nixpkgs pin includes it.
base.overrideAttrs (_: {
docPackages = [ ];
});

# Same as haskellPackages.shellFor in nixpkgs.
shellFor = haskellLib.weakCallPackage pkgs ./shell-for.nix {
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