From 88bc72a453ec803605bb88a982d33931843d2707 Mon Sep 17 00:00:00 2001
From: katre <jcater@google.com>
Date: Thu, 9 Jan 2020 10:19:50 -0500
Subject: [PATCH] Update go_toolchain to use execution transitons. (#2286)

---
 go/private/go_toolchain.bzl | 3 ++-
 go/private/rules/info.bzl   | 2 +-
 go/private/rules/rule.bzl   | 2 +-
 go/private/rules/sdk.bzl    | 4 ++--
 go/private/tools/path.bzl   | 2 +-
 proto/compiler.bzl          | 6 +++---
 6 files changed, 10 insertions(+), 9 deletions(-)

diff --git a/go/private/go_toolchain.bzl b/go/private/go_toolchain.bzl
index b10ffa2652..26e7f05efe 100644
--- a/go/private/go_toolchain.bzl
+++ b/go/private/go_toolchain.bzl
@@ -62,7 +62,7 @@ go_toolchain = rule(
         # Minimum requirements to specify a toolchain
         "builder": attr.label(
             mandatory = True,
-            cfg = "host",
+            cfg = "exec",
             executable = True,
             doc = "Tool used to execute most Go actions",
         ),
@@ -77,6 +77,7 @@ go_toolchain = rule(
         "sdk": attr.label(
             mandatory = True,
             providers = [GoSDK],
+            cfg = "exec",
             doc = "The SDK this toolchain is based on",
         ),
         # Optional extras to a toolchain
diff --git a/go/private/rules/info.bzl b/go/private/rules/info.bzl
index f2460edd01..4630bb4b8b 100644
--- a/go/private/rules/info.bzl
+++ b/go/private/rules/info.bzl
@@ -43,7 +43,7 @@ _go_info = go_rule(
     attrs = {
         "_go_info": attr.label(
             executable = True,
-            cfg = "host",
+            cfg = "exec",
             default = "@io_bazel_rules_go//go/tools/builders:info",
         ),
     },
diff --git a/go/private/rules/rule.bzl b/go/private/rules/rule.bzl
index 1fdad7bab9..e88ae9cf41 100644
--- a/go/private/rules/rule.bzl
+++ b/go/private/rules/rule.bzl
@@ -38,7 +38,7 @@ def go_rule(implementation, attrs = None, toolchains = None, bootstrap = False,
     toolchains = toolchains + ["@io_bazel_rules_go//go:toolchain"]
 
     if "_nogo" in bootstrap_attrs:
-        attrs["_nogo"] = attr.label(default = Label("@io_bazel_rules_nogo//:nogo"), cfg = "host")
+        attrs["_nogo"] = attr.label(default = Label("@io_bazel_rules_nogo//:nogo"), cfg = "exec")
     if "_coverdata" in bootstrap_attrs:
         attrs["_coverdata"] = attr.label(default = "@io_bazel_rules_go//go/tools/coverdata", aspects = aspects)
     if "_stdlib" in bootstrap_attrs:
diff --git a/go/private/rules/sdk.bzl b/go/private/rules/sdk.bzl
index 7e80a5d29f..8982a9df65 100644
--- a/go/private/rules/sdk.bzl
+++ b/go/private/rules/sdk.bzl
@@ -71,7 +71,7 @@ go_sdk = rule(
         ),
         "tools": attr.label_list(
             allow_files = True,
-            cfg = "host",
+            cfg = "exec",
             doc = ("List of executable files in the SDK built for " +
                    "the execution platform, excluding the go binary"),
         ),
@@ -79,7 +79,7 @@ go_sdk = rule(
             mandatory = True,
             allow_single_file = True,
             executable = True,
-            cfg = "host",
+            cfg = "exec",
             doc = "The go binary",
         ),
     },
diff --git a/go/private/tools/path.bzl b/go/private/tools/path.bzl
index 261b9696a5..2fa7b17bcd 100644
--- a/go/private/tools/path.bzl
+++ b/go/private/tools/path.bzl
@@ -170,7 +170,7 @@ go_path = rule(
         "_go_path": attr.label(
             default = "@io_bazel_rules_go//go/tools/builders:go_path",
             executable = True,
-            cfg = "host",
+            cfg = "exec",
         ),
     },
 )
diff --git a/proto/compiler.bzl b/proto/compiler.bzl
index a506ef324f..14149d615d 100644
--- a/proto/compiler.bzl
+++ b/proto/compiler.bzl
@@ -162,17 +162,17 @@ go_proto_compiler = go_rule(
         "plugin": attr.label(
             allow_single_file = True,
             executable = True,
-            cfg = "host",
+            cfg = "exec",
             default = "@com_github_golang_protobuf//protoc-gen-go",
         ),
         "_go_protoc": attr.label(
             executable = True,
-            cfg = "host",
+            cfg = "exec",
             default = "@io_bazel_rules_go//go/tools/builders:go-protoc",
         ),
         "_protoc": attr.label(
             executable = True,
-            cfg = "host",
+            cfg = "exec",
             default = "@com_google_protobuf//:protoc",
         ),
     },