go: refactor bootstrap

- also add bootstrap to passthru

pkgs/development/compilers/go/1.17.nix

@@ -3,7 +3,6 @@
 , fetchurl
 , tzdata
 , iana-etc
-, runCommand
 , perl
 , which
 , pkg-config
@@ -21,15 +20,7 @@
 }:
 
 let
-  go_bootstrap = buildPackages.callPackage ./bootstrap116.nix { };
-
-  goBootstrap = runCommand "go-bootstrap" { } ''
-    mkdir $out
-    cp -rf ${go_bootstrap}/* $out/
-    chmod -R u+w $out
-    find $out -name "*.c" -delete
-    cp -rf $out/bin/* $out/share/go/bin/
-  '';
+  goBootstrap = buildPackages.callPackage ./bootstrap116.nix { };
 
   goarch = platform: {
     "aarch64" = "arm64";
@@ -277,6 +268,10 @@ stdenv.mkDerivation rec {
 
   disallowedReferences = [ goBootstrap ];
 
+  passthru = {
+    inherit goBootstrap;
+  };
+
   meta = with lib; {
     description = "The Go Programming language";
     homepage = "https://go.dev/";

pkgs/development/compilers/go/1.18.nix

@@ -3,7 +3,6 @@
 , fetchurl
 , tzdata
 , iana-etc
-, runCommand
 , perl
 , which
 , pkg-config
@@ -21,15 +20,7 @@
 }:
 
 let
-  go_bootstrap = buildPackages.callPackage ./bootstrap116.nix { };
-
-  goBootstrap = runCommand "go-bootstrap" { } ''
-    mkdir $out
-    cp -rf ${go_bootstrap}/* $out/
-    chmod -R u+w $out
-    find $out -name "*.c" -delete
-    cp -rf $out/bin/* $out/share/go/bin/
-  '';
+  goBootstrap = buildPackages.callPackage ./bootstrap116.nix { };
 
   goarch = platform: {
     "aarch64" = "arm64";
@@ -271,6 +262,10 @@ stdenv.mkDerivation rec {
 
   disallowedReferences = [ goBootstrap ];
 
+  passthru = {
+    inherit goBootstrap;
+  };
+
   meta = with lib; {
     description = "The Go Programming language";
     homepage = "https://go.dev/";

pkgs/development/compilers/go/1.19.nix

@@ -3,7 +3,6 @@
 , fetchurl
 , tzdata
 , iana-etc
-, runCommand
 , perl
 , which
 , pkg-config
@@ -21,15 +20,7 @@
 }:
 
 let
-  go_bootstrap = buildPackages.callPackage ./bootstrap116.nix { };
-
-  goBootstrap = runCommand "go-bootstrap" { } ''
-    mkdir $out
-    cp -rf ${go_bootstrap}/* $out/
-    chmod -R u+w $out
-    find $out -name "*.c" -delete
-    cp -rf $out/bin/* $out/share/go/bin/
-  '';
+  goBootstrap = buildPackages.callPackage ./bootstrap116.nix { };
 
   goarch = platform: {
     "aarch64" = "arm64";
@@ -270,6 +261,10 @@ stdenv.mkDerivation rec {
 
   disallowedReferences = [ goBootstrap ];
 
+  passthru = {
+    inherit goBootstrap;
+  };
+
   meta = with lib; {
     description = "The Go Programming language";
     homepage = "https://go.dev/";

pkgs/development/compilers/go/binary.nix

@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchurl, version, hashes }:
+{ lib, stdenv, fetchurl, version, hashes, autoPatchelfHook }:
 let
   toGoKernel = platform:
     if platform.isDarwin then "darwin"
@@ -25,19 +25,16 @@ stdenv.mkDerivation rec {
     sha256 = hashes.${platform} or (throw "Missing Go bootstrap hash for platform ${platform}");
   };
 
+  nativeBuildInputs = lib.optionals stdenv.isLinux [ autoPatchelfHook ];
+
   # We must preserve the signature on Darwin
   dontStrip = stdenv.hostPlatform.isDarwin;
 
   installPhase = ''
     runHook preInstall
     mkdir -p $out/share/go $out/bin
-    mv bin/* $out/bin
     cp -r . $out/share/go
-    ${lib.optionalString stdenv.isLinux (''
-    patchelf \
-      --set-interpreter $(cat $NIX_CC/nix-support/dynamic-linker) \
-      $out/bin/go
-    '')}
+    ln -s $out/share/go/bin/go $out/bin/go
     runHook postInstall
   '';
 }