294245f750
After enabling a separate binary output for the `Agda` Haskell package, the new `bin` output measures ~100MiB, compared to the ~4.5GiB before. Using it in `agdaWithPackages` reduces the closure size of an Agda installation from ~5GiB to ~3GiB. The remaining space is taken up mostly by the GHC backend. With this change, derivations depending on `haskellPackages.Agda` directly need to pick the right (binary) output. This concerns in particular `emacsPackages.agda2-mode`.
122 lines
3.7 KiB
Nix
122 lines
3.7 KiB
Nix
# Builder for Agda packages.
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{ stdenv, lib, self, Agda, runCommand, makeWrapper, writeText, ghcWithPackages, nixosTests }:
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let
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inherit (lib)
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attrValues
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elem
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filter
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filterAttrs
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isAttrs
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isList
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platforms
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;
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inherit (lib.strings)
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concatMapStrings
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concatMapStringsSep
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optionalString
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;
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withPackages' = {
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pkgs,
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ghc ? ghcWithPackages (p: with p; [ ieee754 ])
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}: let
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pkgs' = if isList pkgs then pkgs else pkgs self;
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library-file = writeText "libraries" ''
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${(concatMapStringsSep "\n" (p: "${p}/${p.libraryFile}") pkgs')}
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'';
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pname = "agdaWithPackages";
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version = Agda.version;
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in runCommand "${pname}-${version}" {
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inherit pname version;
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nativeBuildInputs = [ makeWrapper ];
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passthru = {
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unwrapped = Agda;
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inherit withPackages;
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tests = {
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inherit (nixosTests) agda;
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allPackages = withPackages (filter self.lib.isUnbrokenAgdaPackage (attrValues self));
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};
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};
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# Agda is a split package with multiple outputs; do not inherit them here.
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meta = removeAttrs Agda.meta [ "outputsToInstall" ];
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} ''
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mkdir -p $out/bin
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makeWrapper ${Agda.bin}/bin/agda $out/bin/agda \
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--add-flags "--with-compiler=${ghc}/bin/ghc" \
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--add-flags "--library-file=${library-file}"
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ln -s ${Agda.bin}/bin/agda-mode $out/bin/agda-mode
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'';
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withPackages = arg: if isAttrs arg then withPackages' arg else withPackages' { pkgs = arg; };
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extensions = [
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"agda"
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"agda-lib"
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"agdai"
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"lagda"
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"lagda.md"
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"lagda.org"
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"lagda.rst"
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"lagda.tex"
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"lagda.typ"
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];
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defaults =
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{ pname
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, meta
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, buildInputs ? []
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, everythingFile ? "./Everything.agda"
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, includePaths ? []
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, libraryName ? pname
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, libraryFile ? "${libraryName}.agda-lib"
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, buildPhase ? null
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, installPhase ? null
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, extraExtensions ? []
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, ...
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}: let
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agdaWithArgs = withPackages (filter (p: p ? isAgdaDerivation) buildInputs);
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includePathArgs = concatMapStrings (path: "-i" + path + " ") (includePaths ++ [(dirOf everythingFile)]);
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in
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{
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inherit libraryName libraryFile;
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isAgdaDerivation = true;
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buildInputs = buildInputs ++ [ agdaWithArgs ];
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buildPhase = if buildPhase != null then buildPhase else ''
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runHook preBuild
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agda ${includePathArgs} ${everythingFile}
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rm ${everythingFile} ${lib.interfaceFile Agda.version everythingFile}
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runHook postBuild
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'';
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installPhase = if installPhase != null then installPhase else ''
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runHook preInstall
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mkdir -p $out
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find \( ${concatMapStringsSep " -or " (p: "-name '*.${p}'") (extensions ++ extraExtensions)} \) -exec cp -p --parents -t "$out" {} +
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runHook postInstall
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'';
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# As documented at https://github.com/NixOS/nixpkgs/issues/172752,
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# we need to set LC_ALL to an UTF-8-supporting locale. However, on
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# darwin, it seems that there is no standard such locale; luckily,
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# the referenced issue doesn't seem to surface on darwin. Hence let's
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# set this only on non-darwin.
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LC_ALL = optionalString (!stdenv.isDarwin) "C.UTF-8";
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meta = if meta.broken or false then meta // { hydraPlatforms = platforms.none; } else meta;
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# Retrieve all packages from the finished package set that have the current package as a dependency and build them
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passthru.tests =
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filterAttrs (name: pkg: self.lib.isUnbrokenAgdaPackage pkg && elem pname (map (pkg: pkg.pname) pkg.buildInputs)) self;
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};
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in
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{
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mkDerivation = args: stdenv.mkDerivation (args // defaults args);
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inherit withPackages withPackages';
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}
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