go_1_20: init at 1.20rc1

pkgs/development/compilers/go/1.20.nix

@@ -0,0 +1,180 @@
+{ lib
+, stdenv
+, fetchurl
+, tzdata
+, substituteAll
+, iana-etc
+, Security
+, Foundation
+, xcbuild
+, mailcap
+, buildPackages
+, pkgsBuildTarget
+, threadsCross
+, testers
+, skopeo
+, buildGo120Module
+}:
+
+let
+  goBootstrap = buildPackages.callPackage ./bootstrap117.nix { };
+
+  skopeoTest = skopeo.override { buildGoModule = buildGo120Module; };
+
+  goarch = platform: {
+    "aarch64" = "arm64";
+    "arm" = "arm";
+    "armv5tel" = "arm";
+    "armv6l" = "arm";
+    "armv7l" = "arm";
+    "i686" = "386";
+    "mips" = "mips";
+    "mips64el" = "mips64le";
+    "mipsel" = "mipsle";
+    "powerpc64le" = "ppc64le";
+    "riscv64" = "riscv64";
+    "s390x" = "s390x";
+    "x86_64" = "amd64";
+  }.${platform.parsed.cpu.name} or (throw "Unsupported system: ${platform.parsed.cpu.name}");
+
+  # We need a target compiler which is still runnable at build time,
+  # to handle the cross-building case where build != host == target
+  targetCC = pkgsBuildTarget.targetPackages.stdenv.cc;
+
+  isCross = stdenv.buildPlatform != stdenv.targetPlatform;
+in
+stdenv.mkDerivation rec {
+  pname = "go";
+  version = "1.20rc1";
+
+  src = fetchurl {
+    url = "https://go.dev/dl/go${version}.src.tar.gz";
+    sha256 = "sha256-FzEFTKmE8l/dCD0Ejt+gghDMkWf1oIanHeuhKMcTtBQ=";
+  };
+
+  strictDeps = true;
+  buildInputs = [ ]
+    ++ lib.optionals stdenv.isLinux [ stdenv.cc.libc.out ]
+    ++ lib.optionals (stdenv.hostPlatform.libc == "glibc") [ stdenv.cc.libc.static ];
+
+  depsTargetTargetPropagated = lib.optionals stdenv.isDarwin [ Foundation Security xcbuild ];
+
+  depsBuildTarget = lib.optional isCross targetCC;
+
+  depsTargetTarget = lib.optional stdenv.targetPlatform.isWindows threadsCross.package;
+
+  postPatch = ''
+    patchShebangs .
+  '';
+
+  patches = [
+    (substituteAll {
+      src = ./iana-etc-1.17.patch;
+      iana = iana-etc;
+    })
+    # Patch the mimetype database location which is missing on NixOS.
+    # but also allow static binaries built with NixOS to run outside nix
+    (substituteAll {
+      src = ./mailcap-1.17.patch;
+      inherit mailcap;
+    })
+    # prepend the nix path to the zoneinfo files but also leave the original value for static binaries
+    # that run outside a nix server
+    (substituteAll {
+      src = ./tzdata-1.19.patch;
+      inherit tzdata;
+    })
+    ./remove-tools-1.11.patch
+    ./go_no_vendor_checks-1.16.patch
+  ];
+
+  GOOS = stdenv.targetPlatform.parsed.kernel.name;
+  GOARCH = goarch stdenv.targetPlatform;
+  # GOHOSTOS/GOHOSTARCH must match the building system, not the host system.
+  # Go will nevertheless build a for host system that we will copy over in
+  # the install phase.
+  GOHOSTOS = stdenv.buildPlatform.parsed.kernel.name;
+  GOHOSTARCH = goarch stdenv.buildPlatform;
+
+  # {CC,CXX}_FOR_TARGET must be only set for cross compilation case as go expect those
+  # to be different from CC/CXX
+  CC_FOR_TARGET =
+    if isCross then
+      "${targetCC}/bin/${targetCC.targetPrefix}cc"
+    else
+      null;
+  CXX_FOR_TARGET =
+    if isCross then
+      "${targetCC}/bin/${targetCC.targetPrefix}c++"
+    else
+      null;
+
+  GOARM = toString (lib.intersectLists [ (stdenv.hostPlatform.parsed.cpu.version or "") ] [ "5" "6" "7" ]);
+  GO386 = "softfloat"; # from Arch: don't assume sse2 on i686
+  CGO_ENABLED = 1;
+
+  GOROOT_BOOTSTRAP = "${goBootstrap}/share/go";
+
+  buildPhase = ''
+    runHook preBuild
+    export GOCACHE=$TMPDIR/go-cache
+    # this is compiled into the binary
+    export GOROOT_FINAL=$out/share/go
+
+    export PATH=$(pwd)/bin:$PATH
+
+    ${lib.optionalString isCross ''
+    # Independent from host/target, CC should produce code for the building system.
+    # We only set it when cross-compiling.
+    export CC=${buildPackages.stdenv.cc}/bin/cc
+    ''}
+    ulimit -a
+
+    pushd src
+    ./make.bash
+    popd
+    runHook postBuild
+  '';
+
+  preInstall = ''
+    # Contains the wrong perl shebang when cross compiling,
+    # since it is not used for anything we can deleted as well.
+    rm src/regexp/syntax/make_perl_groups.pl
+  '' + (if (stdenv.buildPlatform != stdenv.hostPlatform) then ''
+    mv bin/*_*/* bin
+    rmdir bin/*_*
+    ${lib.optionalString (!(GOHOSTARCH == GOARCH && GOOS == GOHOSTOS)) ''
+      rm -rf pkg/${GOHOSTOS}_${GOHOSTARCH} pkg/tool/${GOHOSTOS}_${GOHOSTARCH}
+    ''}
+  '' else if (stdenv.hostPlatform != stdenv.targetPlatform) then ''
+    rm -rf bin/*_*
+    ${lib.optionalString (!(GOHOSTARCH == GOARCH && GOOS == GOHOSTOS)) ''
+      rm -rf pkg/${GOOS}_${GOARCH} pkg/tool/${GOOS}_${GOARCH}
+    ''}
+  '' else "");
+
+  installPhase = ''
+    runHook preInstall
+    mkdir -p $GOROOT_FINAL
+    cp -a bin pkg src lib misc api doc $GOROOT_FINAL
+    ln -s $GOROOT_FINAL/bin $out/bin
+    runHook postInstall
+  '';
+
+  disallowedReferences = [ goBootstrap ];
+
+  passthru = {
+    inherit goBootstrap skopeoTest;
+    tests = {
+      skopeo = testers.testVersion { package = skopeoTest; };
+    };
+  };
+
+  meta = with lib; {
+    description = "The Go Programming language";
+    homepage = "https://go.dev/";
+    license = licenses.bsd3;
+    maintainers = teams.golang.members;
+    platforms = platforms.darwin ++ platforms.linux;
+  };
+}

pkgs/top-level/all-packages.nix

@@ -23585,6 +23585,17 @@ with pkgs;
     go = buildPackages.go_1_19;
   };
 
+  # requires a newer Apple SDK
+  go_1_20 = darwin.apple_sdk_11_0.callPackage ../development/compilers/go/1.20.nix {
+    inherit (darwin.apple_sdk_11_0.frameworks) Foundation Security;
+  };
+  buildGo120Module = darwin.apple_sdk_11_0.callPackage ../build-support/go/module.nix {
+    go = buildPackages.go_1_20;
+  };
+  buildGo120Package = darwin.apple_sdk_11_0.callPackage ../build-support/go/package.nix {
+    go = buildPackages.go_1_20;
+  };
+
   go2nix = callPackage ../development/tools/go2nix { };
 
   leaps = callPackage ../development/tools/leaps { };