48 lines
2.3 KiB
Nix
48 lines
2.3 KiB
Nix
{ stdenv, lib, haskellPackages, haskell, removeReferencesTo, installShellFiles }:
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let
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# Since pandoc 3.0 the pandoc binary resides in the pandoc-cli package.
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static = haskell.lib.compose.justStaticExecutables haskellPackages.pandoc-cli;
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in
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(haskell.lib.compose.overrideCabal (drv: {
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configureFlags = drv.configureFlags or [] ++ ["-fembed_data_files"];
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buildDepends = drv.buildDepends or [] ++ [haskellPackages.file-embed];
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buildTools = (drv.buildTools or []) ++ [
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removeReferencesTo
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installShellFiles
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];
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# Normally, the static linked executable shouldn't refer to any library or the compiler.
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# This is not always the case when the dependency has Paths_* module generated by Cabal,
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# where bindir, datadir, and libdir contain the path to the library, and thus make the
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# executable indirectly refer to GHC. However, most Haskell programs only use Paths_*.version for
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# getting the version at runtime, so it's safe to remove the references to them.
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# This is true so far for pandoc-types and warp.
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# For details see: https://github.com/NixOS/nixpkgs/issues/34376
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postInstall = drv.postInstall or "" + ''
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remove-references-to \
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-t ${haskellPackages.pandoc-types} \
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$out/bin/pandoc
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remove-references-to \
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-t ${haskellPackages.warp} \
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$out/bin/pandoc
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remove-references-to \
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-t ${haskellPackages.pandoc} \
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$out/bin/pandoc
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'' + lib.optionalString (stdenv.buildPlatform == stdenv.hostPlatform) ''
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mkdir -p $out/share/bash-completion/completions
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$out/bin/pandoc --bash-completion > $out/share/bash-completion/completions/pandoc
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'' + ''
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installManPage man/*
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'';
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}) static).overrideAttrs (drv: {
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# These libraries are still referenced, because they generate
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# a `Paths_*` module for figuring out their version.
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# The `Paths_*` module is generated by Cabal, and contains the
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# version, but also paths to e.g. the data directories, which
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# lead to a transitive runtime dependency on the whole GHC distribution.
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# This should ideally be fixed in haskellPackages (or even Cabal),
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# but a minimal pandoc is important enough to patch it manually.
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disallowedReferences = [ haskellPackages.pandoc-types haskellPackages.warp haskellPackages.pandoc ];
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})
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