Merge commit '36bca61764984ff5395653cf8377ec5daa71b709' as 'libs/protobuf'

libs/protobuf/ruby/internal.bzl

@@ -0,0 +1,35 @@
+def internal_ruby_extension(
+        name,
+        extension,
+        deps = [],
+        **kwargs):
+    """Bazel rule to wrap up a generated ruby extension.
+
+    NOTE: the rule is only an internal workaround. The interface may change and
+    the rule may be removed when everything is properly "Bazelified".
+
+    Args:
+      name: the name of the target.
+      extension: the path of the extension file.
+      deps: extra dependencies to add.
+      **kwargs: extra arguments to forward to the genrule.
+    """
+
+
+    native.genrule(
+        name = name,
+        srcs = deps + [
+            "Rakefile",
+            ":srcs",
+            ":test_ruby_protos",
+            ":tests",
+            "@utf8_range//:utf8_range_srcs",
+        ],
+        tags = ["manual"],
+        outs = [extension],
+        cmd = "pushd `dirname $(location Rakefile)`\n" +
+              "BAZEL=true rake\n" +
+              "popd\n" +
+              "cp `dirname $(location Rakefile)`/%s $(OUTS)\n" % extension,
+        **kwargs,
+    )