Julia in nixpkgs: an impure road to IJulia

default.nix

{ stdenv, makeWrapper, writeText,
cacert, git, mbedtls, zlib, zeromq3, julia, jupyterEnv }:

let
  extraLibs = [ mbedtls zlib zeromq3 ];

  majorMinor = version:
  with stdenv.lib;
  concatStringsSep "." (take 2 (splitString "." version));

  patches = with stdenv.lib; {
    ZMQ = writeText "ZMQ.jl.patch" (readFile ./ZMQ.jl.patch);
    MbedTLS = writeText "MbedTLS.jl.patch" (readFile ./MbedTLS.jl.patch);
  };
in

stdenv.mkDerivation rec {
  name = "julia-${version}-env";
  version = julia.version;

  nativeBuildInputs = [
    makeWrapper
    cacert
    git
    # pkgconfig
    # which
    jupyterEnv
  ];

  buildInputs = [ julia ] ++ extraLibs;

  phases = [ "installPhase" ];

  installPhase = ''
    export SSL_CERT_FILE=${cacert}/etc/ssl/certs/ca-bundle.crt
    export LD_LIBRARY_PATH=${stdenv.lib.makeLibraryPath extraLibs}
    export JULIA_PKGDIR=$out/share/julia/site
    mkdir -p $JULIA_PKGDIR
    julia -e "Pkg.init()"
    pushd $JULIA_PKGDIR/v${majorMinor version}

    # Install ZMQ.jl manually to remove dependnecy to Homebrew.jl
    git clone https://github.com/JuliaInterop/ZMQ.jl.git ZMQ
    pushd ZMQ
    patch -p1 < ${patches.ZMQ}
    julia -e "Pkg.resolve(); Pkg.build(\"ZMQ\")"
    popd

    # Install MbedTLS.jl manually to remove dependnecy to Homebrew.jl
    git clone https://github.com/JuliaWeb/MbedTLS.jl.git MbedTLS
    pushd MbedTLS
    patch -p1 < ${patches.MbedTLS}
    julia -e "Pkg.resolve(); Pkg.build(\"MbedTLS\")"
    popd

    export JUPYTER=${jupyterEnv}/bin/jupyter
    export HOME=.
    julia -e "Pkg.add(\"IJulia\")"

    # Modify IJulia kernel
    kspec=$out/share/jupyter/kernels/julia-${majorMinor version}
    mkdir -p $kspec
    cat << JSON > $kspec/kernel.json
    {
      "argv": [
        "$out/bin/julia", "-i", "--startup-file=yes", "--color=yes",
        "$out/share/julia/site/v${majorMinor version}/IJulia/src/kernel.jl",
        "{connection_file}"
      ],
      "display_name": "${name} (IJulia)",
      "language": "julia"
    }
    JSON
    chmod 444 $kspec/kernel.json
    ln -s $JULIA_PKGDIR/v${majorMinor version}/IJulia/deps/logo-32x32.png $kspec/
    ln -s $JULIA_PKGDIR/v${majorMinor version}/IJulia/deps/logo-64x64.png $kspec/

    popd
    makeWrapper ${julia}/bin/julia $out/bin/julia \
        --prefix LD_LIBRARY_PATH : "$LD_LIBRARY_PATH" \
        --set JULIA_LOAD_PATH $JULIA_PKGDIR/v${majorMinor version}
  '';
}

MbedTLS.jl.patch

diff --git a/REQUIRE b/REQUIRE
index a7c2269..597a7cf 100644
--- a/REQUIRE
+++ b/REQUIRE
@@ -1,4 +1,3 @@
 julia 0.6
 BinDeps
-@osx Homebrew
 Compat 0.41.0
diff --git a/deps/build.jl b/deps/build.jl
index e710313..713ba2f 100644
--- a/deps/build.jl
+++ b/deps/build.jl
@@ -51,9 +51,9 @@ if need_to_build_manually
     # make sure we delete the old deps.jl
     isfile("deps.jl") && read("deps.jl", String) == systemlibs && rm("deps.jl")
 
-    mbed = library_dependency("libmbedtls", aliases=["libmbedtls", "libmbedtls.2.1.1"])
-    mbed_crypto = library_dependency("libmbedcrypto", aliases=["libmbedcrypto", "libmbedcrypto.2.1.1"], validate=validate_mbed)
-    mbed_x509 = library_dependency("libmbedx509", aliases=["libmbedx509", "libmbedx509.2.1.1"])
+    mbed = library_dependency("libmbedtls", aliases=["libmbedtls", "libmbedtls.so", "libmbedtls.2.1.1"])
+    mbed_crypto = library_dependency("libmbedcrypto", aliases=["libmbedcrypto", "libmbedcrypto.so", "libmbedcrypto.2.1.1"], validate=validate_mbed)
+    mbed_x509 = library_dependency("libmbedx509", aliases=["libmbedx509", "libmbedx509.so", "libmbedx509.2.1.1"])
 
     mbed_all = [mbed, mbed_crypto, mbed_x509]
 
@@ -87,11 +87,6 @@ if need_to_build_manually
     end
 
     if Compat.Sys.isapple()
-        if Pkg.installed("Homebrew") === nothing
-            error("Homebrew package not installed, please run Pkg.add(\"Homebrew\")")
-        end
-        using Homebrew
-        provides(Homebrew.HB, "mbedtls", mbed_all)
     end
 
     if Compat.Sys.iswindows()

ZMQ.jl.patch

diff --git a/REQUIRE b/REQUIRE
index 60d25d1..6ea9e39 100644
--- a/REQUIRE
+++ b/REQUIRE
@@ -1,5 +1,4 @@
 julia 0.6
 BinDeps 0.3.21
-@osx Homebrew
 Compat 0.41.0
 @windows WinRPM
diff --git a/deps/build.jl b/deps/build.jl
index 4fbd7ae..987f585 100644
--- a/deps/build.jl
+++ b/deps/build.jl
@@ -30,8 +30,6 @@ if Compat.Sys.iswindows()
     using WinRPM
     provides(WinRPM.RPM, "zeromq", [zmq], os = :Windows)
 elseif Compat.Sys.isapple()
-    using Homebrew
-    provides(Homebrew.HB, "zeromq@3.2", zmq, os = :Darwin)
 end
 
 @BinDeps.install Dict(:zmq => :zmq)