ci.nix

{ ocamlVersion, musl ? false }:

let
  pkgs = import ./sources.nix {};
  inherit (pkgs) lib stdenv;
  ignoredPackages = [
    # camlp4 or not supported in 4.11+
    "bap" "bin_prot_p4" "bolt" "camlp4" "camomile_0_8_2" "cil" "dypgen"
    "earlybird" "enumerate" "estring" "faillib" "fieldslib_p4" "gtktop"
    "lablgtk_2_14" "lablgtk" "lablgtk3" "lablgtk3-gtkspell3" "camlimages"
    "lablgtk3-sourceview3" "lablgtk-extras" "lens" "magick" "mezzo" "mlgmp"
    "ocaml_cairo" "ocaml_cryptgps" "ocaml_data_notation" "ocaml_http"
    "ocamlnat" "ocamlsdl" "ocf" "omake_rc1" "pa_ounit" "ppx_deriving_protobuf"
    "sodium" "sqlite3EZ" "type_conv_108_08_00" "type_conv_109_60_01"
    "variantslib_p4" "xtmpl" "async_inotify" "async_smtp" "lwt_camlp4"
    "js_of_ocaml-camlp4" "macaque" "odn" "comparelib" "config-file" "erm_xmpp"
    "gmetadom" "herelib" "higlo" "js_build_tools" "lua-ml" "ocaml_optcomp"
    "ocamlscript" "ocsigen_deriving" "pa_bench" "pipebang" "rope" "stog"
    "type_conv" "type_conv_112_01_01" "typerep" "typerep_p4" "ulex" "lablgl"
    "labltk"

    # too long to build or broken
    "z3" "nonstd" "sosa" "genspio" "irmin-unix" "dose3"

    # too outdated / dont care for now
    "nocrypto" "wodan"

    # dune.configurator issue
    "cairo2" "gettext-stub" "zmq" "zmq-lwt" "ocamlfuse"
    "google-drive-ocamlfuse"

    # jbuild files
    "facile" "atd" "atdgen" "safepass" "ocsigen-start" "ezxmlm"
    "owl" "npy" "torch" "phylogenetics"

    # linking issues?
    "ocaml_libvirt" "ocaml-r" "tsdl" "owee" "spacetime_lib" "prof_spacetime"
    "mariadb" "caqti-driver-mariadb"

    # not ppxlib >= 0.18 compatible (I don't use these, so I haven't bothered
    # to fix them)
    "ppx_bitstring" "ppx_irmin" "ppx_deriving_rpc" "rpclib-lwt" "pgocaml_ppx"
    "elpi" "eliom" "ocsigen-toolkit"
    "ppx_import" # mystery

    # broken on 4.12
    "ocaml-lsp" "batteries"
  ];

  buildCandidates = lib.filterAttrs
    (n: v:
    let broken = if v ? meta && v.meta ? broken then v.meta.broken else false; in
    ((! (builtins.elem n ignoredPackages)) &&
     (! broken) &&
    (let platforms = (if ((v ? meta) && v.meta ? platforms) then v.meta.platforms else lib.platforms.all);
      in
      (builtins.elem stdenv.system platforms)))
    );
    pkgs' = (if musl then pkgs.pkgsCross.musl64 else pkgs).ocaml-ng."ocamlPackages_${ocamlVersion}";
    drvs = buildCandidates pkgs';
in

  if musl then with drvs; [
    # just build a subset of the static overlay, with the most commonly used
    # packages
    piaf
    carl
    (carl.override { static = true; })
    caqti-driver-postgresql
  ]
  else drvs