86 lines
1.8 KiB
Nix
86 lines
1.8 KiB
Nix
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{
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stdenv,
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lib,
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fetchurl,
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ocaml,
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findlib,
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ocamlbuild,
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topkg,
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uchar,
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result,
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gg,
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otfm,
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brr,
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pdfBackend ? true, # depends on otfm
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htmlcBackend ? true, # depends on brr
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}:
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let
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inherit (lib) optionals versionOlder;
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pname = "vg";
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version = "0.9.5";
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webpage = "https://erratique.ch/software/${pname}";
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in
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if versionOlder ocaml.version "4.14" then
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throw "vg is not available for OCaml ${ocaml.version}"
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else
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stdenv.mkDerivation {
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name = "ocaml${ocaml.version}-${pname}-${version}";
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src = fetchurl {
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url = "${webpage}/releases/${pname}-${version}.tbz";
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hash = "sha256-qcTtvIfSUwzpUZDspL+54UTNvWY6u3BTvfGWF6c0Jvw=";
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};
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nativeBuildInputs = [
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ocaml
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findlib
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ocamlbuild
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];
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buildInputs = [ topkg ];
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propagatedBuildInputs = [
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uchar
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result
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gg
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]
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++ optionals pdfBackend [
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otfm
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]
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++ optionals htmlcBackend [
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brr
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];
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strictDeps = true;
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buildPhase =
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topkg.buildPhase
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+ " --with-otfm ${lib.boolToString pdfBackend}"
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+ " --with-brr ${lib.boolToString htmlcBackend}"
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+ " --with-cairo2 false";
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inherit (topkg) installPhase;
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meta = with lib; {
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description = "Declarative 2D vector graphics for OCaml";
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longDescription = ''
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Vg is an OCaml module for declarative 2D vector graphics. In Vg, images
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are values that denote functions mapping points of the cartesian plane
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to colors. The module provides combinators to define and compose these
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values.
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Renderers for PDF, SVG and the HTML canvas are distributed with the
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module. An API allows to implement new renderers.
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'';
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homepage = webpage;
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license = licenses.isc;
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maintainers = [ maintainers.jirkamarsik ];
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mainProgram = "vecho";
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inherit (ocaml.meta) platforms;
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};
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}
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