Merge staging-next into staging

pkgs/development/interpreters/ruby/default.nix

@@ -3,7 +3,7 @@
 , zlib, openssl, gdbm, ncurses, readline, groff, libyaml, libffi, autoreconfHook, bison
 , autoconf, libiconv, libobjc, libunwind, Foundation
 , buildEnv, bundler, bundix
-, makeWrapper, buildRubyGem, defaultGemConfig
+, makeWrapper, buildRubyGem, defaultGemConfig, removeReferencesTo
 } @ args:
 
 let
@@ -27,6 +27,7 @@ let
     ver = version;
     tag = ver.gitTag;
     atLeast25 = lib.versionAtLeast ver.majMin "2.5";
+    atLeast27 = lib.versionAtLeast ver.majMin "2.7";
     baseruby = self.override {
       useRailsExpress = false;
       docSupport = false;
@@ -44,6 +45,11 @@ let
       , groff, docSupport ? true
       , libyaml, yamlSupport ? true
       , libffi, fiddleSupport ? true
+      # ruby -e "puts RbConfig::CONFIG['configure_args']"
+      # puts a reference to the C compiler in the binary.
+      # This might be required by some gems at runtime,
+      # but we allow to strip it out for smaller closure size.
+      , removeReferencesTo, removeReferenceToCC ? false
       , autoreconfHook, bison, autoconf
       , buildEnv, bundler, bundix
       , libiconv, libobjc, libunwind, Foundation
@@ -111,6 +117,12 @@ let
           cp ${config}/config.sub tool/
         '';
 
+        # Force the revision.h generation. Somehow `revision.tmp` is an empty
+        # file and because we don't add `git` to buildInputs, hence the check is
+        # always true.
+        # https://github.com/ruby/ruby/commit/97a5af62a318fcd93a4e5e4428d576c0280ddbae
+        buildFlags = lib.optionals atLeast27 [ "REVISION_LATEST=0" ];
+
         configureFlags = ["--enable-shared" "--enable-pthread" "--with-soname=ruby_${tag}"]
           ++ op useRailsExpress "--with-baseruby=${baseruby}/bin/ruby"
           ++ op (!docSupport) "--disable-install-doc"
@@ -144,7 +156,14 @@ let
         postInstall = ''
           # Remove unnecessary groff reference from runtime closure, since it's big
           sed -i '/NROFF/d' $out/lib/ruby/*/*/rbconfig.rb
-
+          ${
+            lib.optionalString removeReferenceToCC ''
+              # Get rid of the CC runtime dependency
+              ${removeReferencesTo}/bin/remove-references-to \
+                -t ${stdenv.cc} \
+                $out/lib/libruby*
+            ''
+          }
           # Bundler tries to create this directory
           mkdir -p $out/nix-support
           cat > $out/nix-support/setup-hook <<EOF
@@ -234,4 +253,12 @@ in {
       git = "0pay6ic22ag3bnvxffhgwp7z6clkd0p93944a1l4lvc5hxc8v77j";
     };
   };
+
+  ruby_2_7 = generic {
+    version = rubyVersion "2" "7" "0" "";
+    sha256 = {
+      src = "1glc3zpnih6h8mrgfcak0aa7cgmi4zyvxfyi6y2brwg2nn9sm6cc";
+      git = "11iz64k95czs273mb10195d1j75mmbcgddfdx1vay5876ffw81dq";
+    };
+  };
 }

pkgs/development/interpreters/ruby/patchsets.nix

@@ -16,4 +16,6 @@
     "${patchSet}/patches/ruby/2.6/head/railsexpress/02-improve-gc-stats.patch"
     "${patchSet}/patches/ruby/2.6/head/railsexpress/03-more-detailed-stacktrace.patch"
   ];
+  "2.7.0" = ops useRailsExpress [ # no patches yet (2019-12-25)
+  ];
 }

pkgs/development/interpreters/ruby/rubygems/default.nix

@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   name = "rubygems";
-  version = "3.0.6";
+  version = "3.1.2";
 
   src = fetchurl {
     url = "https://rubygems.org/rubygems/rubygems-${version}.tgz";
-    sha256 = "1ca1i4xmggizr59m6p28gprlvshczsbx30q8iyzxb2vj4jn8arzx";
+    sha256 = "0h7ij4jpj8rgnpkl63cwh2lnav73pw5wpfqra3va7077lsyadlgd";
   };
 
   patches = [