chris-website/mkDub.nix
2020-06-24 10:08:28 +02:00

122 lines
3.2 KiB
Nix

{ pkgs ? import <nixpkgs> {},
stdenv ? pkgs.stdenv,
rdmd ? pkgs.rdmd,
dmd ? pkgs.dmd,
dub ? pkgs.dub }:
with stdenv;
let
# Filter function to remove the .dub package folder from src
filterDub = name: type: let baseName = baseNameOf (toString name); in ! (
type == "directory" && baseName == ".dub"
);
# Convert a GIT rev string (tag) to a simple semver version
rev-to-version = builtins.replaceStrings ["v" "refs/tags/v"] ["" ""];
dep2src = dubDep: pkgs.fetchgit { inherit (dubDep.fetch) url rev sha256 fetchSubmodules; };
# Fetch a dependency (source only for now)
fromDub = dubDep: mkDerivation rec {
name = "${src.name}-${version}";
version = rev-to-version dubDep.fetch.rev;
nativeBuildInputs = [ rdmd dmd dub ];
src = dep2src dubDep;
buildPhase = ''
runHook preBuild
export HOME=$PWD
dub build -b=release
runHook postBuild
'';
# outputs = [ "lib" ];
# installPhase = ''
# runHook preInstall
# mkdir -p $out/bin
# runHook postInstall
# '';
};
# Adds a local package directory (e.g. a git repository) to Dub
dub-add-local = dubDep: "dub add-local ${(fromDub dubDep).src.outPath} ${rev-to-version dubDep.fetch.rev}";
# The target output of the Dub package
targetOf = package: "${package.targetPath or "."}/${package.targetName or package.name}";
# Remove reference to build tools and library sources
disallowedReferences = deps: [ dmd rdmd dub ] ++ builtins.map dep2src deps;
removeExpr = refs: ''remove-references-to ${lib.concatMapStrings (ref: " -t ${ref}") refs}'';
in {
inherit fromDub;
mkDubDerivation = lib.makeOverridable ({
src,
nativeBuildInputs ? [],
dubJSON ? src + "/dub.json",
selections ? src + "/dub.selections.nix",
deps ? import selections,
passthru ? {},
package ? lib.importJSON dubJSON,
...
} @ attrs: stdenv.mkDerivation (attrs // {
pname = package.name;
nativeBuildInputs = [ rdmd dmd dub pkgs.removeReferencesTo ] ++ nativeBuildInputs;
disallowedReferences = disallowedReferences deps;
passthru = passthru // {
inherit dub dmd rdmd pkgs;
};
src = lib.cleanSourceWith {
filter = filterDub;
src = lib.cleanSource src;
};
preFixup = ''
find $out/bin -type f -exec ${removeExpr (disallowedReferences deps)} '{}' + || true
'';
buildPhase = ''
runHook preBuild
export HOME=$PWD
${lib.concatMapStringsSep "\n" dub-add-local deps}
dub build -b release --combined --skip-registry=all
runHook postBuild
'';
checkPhase = ''
runHook preCheck
export HOME=$PWD
${lib.concatMapStringsSep "\n" dub-add-local deps}
dub test --combined --skip-registry=all
runHook postCheck
'';
installPhase = ''
runHook preInstall
mkdir -p $out/bin
cp -r "${targetOf package}" $out/bin
runHook postInstall
'';
meta = lib.optionalAttrs (package ? description) {
description = package.description;
} // attrs.meta or {};
} // lib.optionalAttrs (!(attrs ? version)) {
# Use name from dub.json, unless pname and version are specified
name = package.name;
}));
}