wip: add package.nix for build packaging

package.nix

@@ -0,0 +1,87 @@
+{
+  writeShellScript,
+  writableTmpDirAsHomeHook,
+
+  stdenvNoCC,
+
+  texlivePackages,
+  texliveBasic,
+}:
+let
+  texEnv = texliveBasic.withPackages (ps: with ps; [
+    # l3build
+    beamer
+    biblatex
+    enumitem
+    fileinfo
+    hypdoc
+    hyperref
+    listings
+    metalogo
+    parskip
+    pgf
+    pgfopts
+    setspace
+    xurl
+    microtype
+
+    latexmk
+  ]);
+in stdenvNoCC.mkDerivation rec {
+  pname = "moloch";
+  version = "1.0.2-DEV-xenia";
+
+  outputs = [
+    "tex"
+    "texdoc"
+  ];
+
+  passthru.tlDeps = with texlivePackages; [ latex ];
+
+  src = ./.;
+
+  dontConfigure = true;
+
+  nativeBuildInputs = [
+    texEnv
+
+    # multiple-outputs.sh fails if $out is not defined
+    (writeShellScript "force-tex-output.sh" ''
+      out="''${tex-}"
+    '')
+
+    writableTmpDirAsHomeHook # Need a writable $HOME for latexmk
+  ];
+
+  # we just build manually, but moloch's own method of building is using l3build
+  # i have no idea how to get that working, so for now just do it normal style
+  buildPhase = ''
+    runHook preBuild
+
+    # Generate the style files
+    cd src
+    latex beamertheme${pname}.ins
+
+    # Generate the documentation
+    cp ../doc/${pname}.tex .
+    latexmk -pdf ${pname}.tex
+
+    cd ..
+
+    runHook postBuild
+  '';
+
+  installPhase = ''
+    runHook preInstall
+
+    path="$tex/tex/latex/${pname}"
+    mkdir -p "$path"
+    cp src/*.{cls,def,clo,sty} "$path/"
+
+    path="$texdoc/doc/tex/latex/${pname}"
+    mkdir -p "$path"
+    cp src/${pname}.pdf "$path/"
+
+    runHook postInstall
+  '';
+}