1 files changed, 99 insertions, 0 deletions
diff --git a/derivation.nix b/derivation.nix
new file mode 100644
index 0000000..8244612
--- /dev/null
+++ b/derivation.nix
@@ -0,0 +1,99 @@
+{ pkgs ? import <nixpkgs> {},
+  stdenv ? pkgs.stdenv,
+  lib ? pkgs.lib,
+  ldc ? null,
+  dcompiler ? pkgs.ldc,
+  dub ? pkgs.dub
+}:
+assert dcompiler != null;
+with (
+  assert dcompiler != null;
+  with lib;
+  let
+    # Filter function to remove the .dub package folder from src
+    filterDub = name: type: let baseName = baseNameOf (toString name); in ! (
+      type == "directory" && baseName == ".dub"
+    );
+    targetOf = package: "${package.targetPath or "."}/${package.targetName or package.name}";
+    # Remove reference to build tools and library sources
+    disallowedReferences = deps: [ dcompiler dub ];
+    removeExpr = refs: ''remove-references-to ${lib.concatMapStrings (ref: " -t ${ref}") refs}'';
+  in {
+    mkDubDerivation = lib.makeOverridable ({
+      src,
+      nativeBuildInputs ? [],
+      dubJSON ? src + "/dub.json",
+      passthru ? {},
+      package ? lib.importJSON dubJSON,
+      ...
+    } @ attrs: stdenv.mkDerivation (attrs // {
+      pname = package.name;
+      nativeBuildInputs = [ dcompiler dub pkgs.removeReferencesTo ] ++ nativeBuildInputs;
+      disallowedReferences = disallowedReferences deps;
+      passthru = passthru // {
+        inherit dub dcompiler 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
+        for dc_ in dmd ldmd2 gdmd; do
+          echo "- check for D compiler $dc_"
+          dc=$(type -P $dc_ || echo "")
+          if [ ! "$dc" == "" ]; then
+            break
+          fi
+        done
+        if [ "$dc" == "" ]; then
+          exit "Error: could not find D compiler"
+        fi
+        echo "$dc_ used as D compiler to build $pname"
+        dub build --compiler=$dc --build=release --combined --skip-registry=all
+        runHook postBuild
+      '';
+      checkPhase = ''
+        runHook preCheck
+        export HOME=$PWD
+        dub test --combined --skip-registry=all
+        runHook postCheck
+      '';
+      installPhase = ''
+        runHook preInstall
+        mkdir -p $out/bin
+        cp -r "${targetOf package}" $out/bin
+        runHook postInstall
+      '';
+      meta = lib.optionalAttrs (package ? description) {
+        description = package.description;
+      } // attrs.meta or {};
+    } // lib.optionalAttrs (!(attrs ? version)) {
+      # Use name from dub.json, unless pname and version are specified
+      name = package.name;
+    }));
+  }
+);
+mkDubDerivation rec {
+  name = "spine-${version}";
+  version = "0.11.3";
+  src = ./.;
+  buildInputs = with pkgs; [
+    nixFlakes
+    rund
+    dub
+    ldc
+    sqlite
+  ];
+  meta = with pkgs.lib; {
+    homepage    = https://sisudoc.org;
+    description = "a sisu like document parser";
+    license     = licenses.agpl3Plus;
+    platforms   = platforms.linux;
+    maintainers = [ RalphAmissah ];
+  };
+}