nix use overlays when convenient

1 files changed, 219 insertions, 0 deletions

diff --git a/nix-overlays/dmd/generic.nix b/nix-overlays/dmd/generic.nix
new file mode 100644
index 0000000..e500385
--- /dev/null
+++ b/nix-overlays/dmd/generic.nix
@@ -0,0 +1,219 @@
+{ version
+, dmdSha256
+, phobosSha256
+}:
+
+{ stdenv
+, lib
+, fetchFromGitHub
+, makeWrapper
+, which
+, writeTextFile
+, curl
+, tzdata
+, gdb
+, callPackage
+, targetPackages
+, fetchpatch
+, bash
+, installShellFiles
+, git
+, unzip
+, HOST_DMD ? "${callPackage ./bootstrap.nix { }}/bin/dmd"
+}:
+
+let
+  dmdConfFile = writeTextFile {
+    name = "dmd.conf";
+    text = (lib.generators.toINI { } {
+      Environment = {
+        DFLAGS = ''-I@out@/include/dmd -L-L@out@/lib -fPIC ${lib.optionalString (!targetPackages.stdenv.cc.isClang) "-L--export-dynamic"}'';
+      };
+    });
+  };
+
+  bits = builtins.toString stdenv.hostPlatform.parsed.cpu.bits;
+  osname =
+    if stdenv.isDarwin then
+      "osx"
+    else
+      stdenv.hostPlatform.parsed.kernel.name;
+
+  pathToDmd = "\${NIX_BUILD_TOP}/dmd/generated/${osname}/release/${bits}/dmd";
+in
+
+stdenv.mkDerivation rec {
+  pname = "dmd";
+  inherit version;
+
+  enableParallelBuilding = true;
+
+  srcs = [
+    (fetchFromGitHub {
+      owner = "dlang";
+      repo = "dmd";
+      rev = "v${version}";
+      sha256 = dmdSha256;
+      name = "dmd";
+    })
+    (fetchFromGitHub {
+      owner = "dlang";
+      repo = "phobos";
+      rev = "v${version}";
+      sha256 = phobosSha256;
+      name = "phobos";
+    })
+  ];
+
+  sourceRoot = ".";
+
+  # https://issues.dlang.org/show_bug.cgi?id=19553
+  hardeningDisable = [ "fortify" ];
+
+  #patches = lib.optionals (lib.versionOlder version "2.088.0") [
+  #  # Migrates D1-style operator overloads in DMD source, to allow building with
+  #  # a newer DMD
+  #  (fetchpatch {
+  #    url = "https://github.com/dlang/dmd/commit/c4d33e5eb46c123761ac501e8c52f33850483a8a.patch";
+  #    stripLen = 1;
+  #    extraPrefix = "dmd/";
+  #    sha256 = "sha256-N21mAPfaTo+zGCip4njejasraV5IsWVqlGR5eOdFZZE=";
+  #  })
+  #] ++ lib.optionals (lib.versionOlder version "2.092.2") [
+  #  # Fixes C++ tests that compiled on older C++ but not on the current one
+  #  (fetchpatch {
+  #    url = "https://github.com/dlang/druntime/commit/438990def7e377ca1f87b6d28246673bb38022ab.patch";
+  #    stripLen = 1;
+  #    extraPrefix = "druntime/";
+  #    sha256 = "sha256-/pPKK7ZK9E/mBrxm2MZyBNhYExE8p9jz8JqBdZSE6uY=";
+  #  })
+  #];
+
+  postPatch = ''
+    patchShebangs dmd/compiler/test/{runnable,fail_compilation,compilable,tools}{,/extra-files}/*.sh
+
+    rm dmd/compiler/test/runnable_cxx/cppa.d
+
+    # Grep'd string changed with gdb 12
+    #   https://issues.dlang.org/show_bug.cgi?id=23198
+    substituteInPlace dmd/druntime/test/exceptions/Makefile \
+      --replace 'in D main (' 'in _Dmain ('
+
+    # We're using gnused on all platforms
+    substituteInPlace dmd/druntime/test/coverage/Makefile \
+      --replace 'freebsd osx' 'none'
+  ''
+
+  + lib.optionalString (lib.versionOlder version "2.091.0") ''
+    # This one has tested against a hardcoded year, then against a current year on
+    # and off again. It just isn't worth it to patch all the historical versions
+    # of it, so just remove it until the most recent change.
+    rm dmd/compiler/test/compilable/ddocYear.d
+  '' + lib.optionalString (lib.versionAtLeast version "2.089.0" && lib.versionOlder version "2.092.2") ''
+    rm dmd/compiler/test/dshell/test6952.d
+  '' + lib.optionalString (lib.versionAtLeast version "2.092.2") ''
+    substituteInPlace dmd/compiler/test/dshell/test6952.d --replace "/usr/bin/env bash" "${bash}/bin/bash"
+  ''
+
+  + lib.optionalString stdenv.isLinux ''
+    substituteInPlace phobos/std/socket.d --replace "assert(ih.addrList[0] == 0x7F_00_00_01);" ""
+  '' + lib.optionalString stdenv.isDarwin ''
+    substituteInPlace phobos/std/socket.d --replace "foreach (name; names)" "names = []; foreach (name; names)"
+  '';
+
+  nativeBuildInputs = [
+    makeWrapper
+    which
+    installShellFiles
+  ] ++ lib.optionals (lib.versionOlder version "2.088.0") [
+    git
+  ];
+
+  buildInputs = [
+    curl
+    tzdata
+  ];
+
+  nativeCheckInputs = [
+    gdb
+  ] ++ lib.optionals (lib.versionOlder version "2.089.0") [
+    unzip
+  ];
+
+  buildFlags = [
+    "BUILD=release"
+    "ENABLE_RELEASE=1"
+    "PIC=1"
+  ];
+
+  # Build and install are based on http://wiki.dlang.org/Building_DMD
+  buildPhase = ''
+    runHook preBuild
+
+    export buildJobs=$NIX_BUILD_CORES
+    if [ -z $enableParallelBuilding ]; then
+      buildJobs=1
+    fi
+
+    make -C dmd -f posix.mak $buildFlags -j$buildJobs HOST_DMD=${HOST_DMD}
+    echo ${tzdata}/share/zoneinfo/ > TZDatabaseDirFile
+    echo ${lib.getLib curl}/lib/libcurl${stdenv.hostPlatform.extensions.sharedLibrary} > LibcurlPathFile
+    make -C phobos -f posix.mak $buildFlags -j$buildJobs DMD=${pathToDmd} DFLAGS="-version=TZDatabaseDir -version=LibcurlPath -J$PWD"
+
+    runHook postBuild
+  '';
+
+  doCheck = true;
+
+  checkFlags = buildFlags;
+
+  # many tests are disbled because they are failing
+
+  # NOTE: Purity check is disabled for checkPhase because it doesn't fare well
+  # with the DMD linker. See https://github.com/NixOS/nixpkgs/issues/97420
+  checkPhase = ''
+    runHook preCheck
+
+    export checkJobs=$NIX_BUILD_CORES
+    if [ -z $enableParallelChecking ]; then
+      checkJobs=1
+    fi
+
+    NIX_ENFORCE_PURITY= \
+      make -C dmd/compiler/test $checkFlags CC=$CXX SHELL=$SHELL -j$checkJobs N=$checkJobs
+
+    NIX_ENFORCE_PURITY= \
+      make -C phobos -f posix.mak unittest $checkFlags -j$checkJobs DFLAGS="-version=TZDatabaseDir -version=LibcurlPath -J$PWD"
+
+    runHook postCheck
+  '';
+
+  installPhase = ''
+    runHook preInstall
+
+    install -Dm755 ${pathToDmd} $out/bin/dmd
+
+    installManPage dmd/docs/man/man*/*
+
+    mkdir $out/lib
+    cp phobos/generated/${osname}/release/${bits}/libphobos2.* $out/lib/
+
+    wrapProgram $out/bin/dmd \
+      --prefix PATH ":" "${targetPackages.stdenv.cc}/bin" \
+      --set-default CC "${targetPackages.stdenv.cc}/bin/cc"
+
+    substitute ${dmdConfFile} "$out/bin/dmd.conf" --subst-var out
+
+    runHook postInstall
+  '';
+
+  meta = with lib; {
+    description = "Official reference compiler for the D language";
+    homepage = "https://dlang.org/";
+    # Everything is now Boost licensed, even the backend.
+    # https://github.com/dlang/dmd/pull/6680
+    license = licenses.boost;
+    maintainers = with maintainers; [ ThomasMader lionello dukc ];
+    platforms = [ "x86_64-linux" "i686-linux" "x86_64-darwin" ];
+  };
+}