Update WORKSPACE / BUILD to work with bazel at HEAD.

Uses external rules_go github repository.

BUILD

@@ -1,4 +1,4 @@
-load("@bazel_tools//tools/build_rules/go:def.bzl", "go_prefix", "go_binary")
+load("@io_bazel_rules_go//go:def.bzl", "go_prefix", "go_binary")
 
 package(
     default_visibility = ["//visibility:public"],
@@ -9,11 +9,6 @@ go_prefix("github.com/laramiel/bazel-example-golang/")
 go_binary(
     name = "hello",
     srcs = ["hello.go"],
-)
-
-go_binary(
-    name = "local",
-    srcs = ["local.go"],
     deps = [
         "//local",
     ],

README.md

@@ -8,6 +8,8 @@ This requires bazel release > `bazel-0.20`.
 ```
 $ git clone https://github.com/laramiel/bazel-example-golang.git
 $ cd bazel-example-golang
+$ git submodule init
+$ git submodule foreach git pull origin master
 
 $ bazel run :hello
 

WORKSPACE

@@ -1,4 +1,10 @@
-load("@bazel_tools//tools/build_rules/go:def.bzl", "go_repositories")
+git_repository(
+    name = "io_bazel_rules_go",
+    remote = "https://github.com/bazelbuild/rules_go.git",
+    commit = "373feb6",
+)
+
+load("@io_bazel_rules_go//go:def.bzl", "go_repositories")
 
 go_repositories()
 

hello.go

@@ -2,8 +2,12 @@ package main
 
 import (
 	"fmt"
+
+	"github.com/laramiel/bazel-example-golang/local/local"
 )
 
 func main() {
 	fmt.Println("Hello World")
+
+	fmt.Println("Hello ", local.World())
 }

local.go

@@ -1,10 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"github.com/laramiel/bazel-example-golang/local/local"
-)
-
-func main() {
-	fmt.Println("Hello ", local.World())
-}

local/BUILD

@@ -1,4 +1,4 @@
-load("@bazel_tools//tools/build_rules/go:def.bzl", "go_library")
+load("@io_bazel_rules_go//go:def.bzl", "go_library")
 
 go_library(
     name ="local",

submodule/BUILD

@@ -1,4 +1,4 @@
-load("@bazel_tools//tools/build_rules/go:def.bzl", "go_prefix", "go_binary")
+load("@io_bazel_rules_go//go:def.bzl", "go_binary")
 
 package(
     default_visibility = ["//visibility:public"],

vendor/github.com/laramiel/BUILD

@@ -1,4 +1,4 @@
-load("@bazel_tools//tools/build_rules/go:def.bzl", "go_library")
+load("@io_bazel_rules_go//go:def.bzl", "go_library")
 
 go_library(
     name = "bare",

with_vendor/BUILD

@@ -1,4 +1,4 @@
-load("@bazel_tools//tools/build_rules/go:def.bzl", "go_prefix", "go_binary")
+load("@io_bazel_rules_go//go:def.bzl", "go_binary")
 
 package(
     default_visibility = ["//visibility:public"],