Run buildifier on the build files and add it to "make check".

BUILD

@@ -32,4 +32,3 @@ genrule(
     cmd = "echo $${ISTIO_VERSION:-\"0.3.0-dev\"} > \"$@\"",
     visibility = ["//visibility:public"],
 )
-

WORKSPACE

@@ -17,14 +17,14 @@
 
 # http_archive is not a native function since bazel 0.19
 load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
-
 load(
-     "//:repositories.bzl",
-     "googletest_repositories",
-     "mixerapi_dependencies",
+    "//:repositories.bzl",
+    "googletest_repositories",
+    "mixerapi_dependencies",
 )
 
 googletest_repositories()
+
 mixerapi_dependencies()
 
 bind(
@@ -36,35 +36,42 @@ bind(
 #
 # Determine SHA256 `wget https://github.com/envoyproxy/envoy/archive/COMMIT.tar.gz && sha256sum COMMIT.tar.gz`
 ENVOY_SHA = "bbf5674c2c9a901ec4e964e4dd1d845516e672b2"
+
 ENVOY_SHA256 = "a4e56688cd274db367a5ab905e4d02da6d271189c564ae05e87812c63790c7d6"
 
 http_archive(
     name = "envoy",
+    sha256 = ENVOY_SHA256,
     strip_prefix = "envoy-" + ENVOY_SHA,
     url = "https://github.com/envoyproxy/envoy/archive/" + ENVOY_SHA + ".tar.gz",
-    sha256 = ENVOY_SHA256,
 )
 
 load("@envoy//bazel:repositories.bzl", "envoy_dependencies")
+
 envoy_dependencies()
 
 load("@envoy//bazel:cc_configure.bzl", "cc_configure")
+
 cc_configure()
 
 load("@envoy_api//bazel:repositories.bzl", "api_dependencies")
+
 api_dependencies()
 
-load("@io_bazel_rules_go//go:def.bzl", "go_rules_dependencies", "go_register_toolchains")
+load("@io_bazel_rules_go//go:def.bzl", "go_register_toolchains", "go_rules_dependencies")
+
 go_rules_dependencies()
+
 go_register_toolchains()
 
 # Nov 28, 2017 (bazel 0.8.0 support)
 RULES_PROTOBUF_SHA = "563b674a2ce6650d459732932ea2bc98c9c9a9bf"
+
 RULES_PROTOBUF_SHA256 = "338e0d65cd709c6a6f9b5702466e641d536479be8b564d1e12a5d1de22a5cff6"
 
 http_archive(
     name = "org_pubref_rules_protobuf",
+    sha256 = RULES_PROTOBUF_SHA256,
     strip_prefix = "rules_protobuf-" + RULES_PROTOBUF_SHA,
     url = "https://github.com/pubref/rules_protobuf/archive/" + RULES_PROTOBUF_SHA + ".tar.gz",
-    sha256 = RULES_PROTOBUF_SHA256,
 )

cc_gogo_protobuf.bzl

@@ -19,7 +19,7 @@ load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
 GOGO_PROTO_SHA = "100ba4e885062801d56799d78530b73b178a78f3"
 GOGO_PROTO_SHA256 = "b04eb8eddd2d15d8b12d111d4ef7816fca6e5c5d495adf45fb8478278aa80f79"
 
-def cc_gogoproto_repositories(bind=True):
+def cc_gogoproto_repositories(bind = True):
     BUILD = """
 # Copyright 2017 Istio Authors. All Rights Reserved.
 #

googleapis.bzl

@@ -20,7 +20,7 @@ load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
 GOOGLEAPIS_SHA = "13ac2436c5e3d568bd0e938f6ed58b77a48aba15"
 GOOGLEAPIS_SHA256 = "f48956fb8c55617ed052c20884465f06b9a57b807164431185be397ea46993ca"
 
-def googleapis_repositories(bind=True):
+def googleapis_repositories(bind = True):
     GOOGLEAPIS_BUILD_FILE = """
 package(default_visibility = ["//visibility:public"])
 

include/istio/mixerclient/BUILD

@@ -17,8 +17,8 @@ licenses(["notice"])
 cc_library(
     name = "headers_lib",
     hdrs = [
-        "client.h",
         "check_response.h",
+        "client.h",
         "environment.h",
         "options.h",
         "timer.h",

include/istio/utils/BUILD

@@ -42,4 +42,4 @@ cc_library(
         "attribute_names.h",
     ],
     visibility = ["//visibility:public"],
-)
+)

protobuf.bzl

@@ -20,7 +20,7 @@ load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
 PROTOBUF_SHA = "7492b5681231c79f0265793fa57dc780ae2481d6"
 PROTOBUF_SHA256 = "46f1da3a6a6db66dd240cf95a5553198f7c6e98e6ac942fceb8a1cf03291d96e"
 
-def protobuf_repositories(load_repo=True, bind=True):
+def protobuf_repositories(load_repo = True, bind = True):
     if load_repo:
         http_archive(
             name = "com_google_protobuf",

script/check-style

@@ -33,7 +33,7 @@ if [[ ! -x "${CLANG_FORMAT}" ]]; then
     echo "Unsupported environment." ; exit 1 ;
   fi
 
-  echo "clang-bin: http://releases.llvm.org/${CLANG_VERSION_REQUIRED}/clang+llvm-${CLANG_VERSION_REQUIRED}-${CLANG_BIN}"
+  echo "Downloading clang-format: http://releases.llvm.org/${CLANG_VERSION_REQUIRED}/clang+llvm-${CLANG_VERSION_REQUIRED}-${CLANG_BIN}"
 
   CLANG_VERSION="$(${CLANG_FORMAT} -version | cut -d ' ' -f 3)"
   if [[ "${CLANG_VERSION}" != "${CLANG_VERSION_REQUIRED}" ]]; then
@@ -42,7 +42,31 @@ if [[ ! -x "${CLANG_FORMAT}" ]]; then
     curl --silent --show-error --retry 10 \
       "http://releases.llvm.org/${CLANG_VERSION_REQUIRED}/clang+llvm-${CLANG_VERSION_REQUIRED}-${CLANG_BIN}" \
       | tar Jx -C "${CLANG_DIRECTORY}" --strip=1 \
-    || { echo "Could not install required clang-format. Skip formating." ; exit 0 ; }
+    || { echo "Could not install required clang-format. Skip formatting." ; exit 1 ; }
+  fi
+fi
+
+BUILDIFIER=$(which buildifier)
+if [[ ! -x "${BUILDIFIER}" ]]; then
+  BUILDIFIER="${HOME}/bin/buildifier"
+  if [[ ! -x "${BUILDIFIER}" ]]; then
+
+    if [ "$(uname)" == "Darwin" ]; then
+      BUILDIFIER_BIN="buildifier.osx"
+    elif [ "$(expr substr $(uname -s) 1 5)" == "Linux" ]; then
+      BUILDIFIER_BIN="buildifier"
+    else
+      echo "Unsupported environment." ; exit 1 ;
+    fi
+
+    echo "Downloading buildifier: https://github.com/bazelbuild/buildtools/releases/download/0.20.0/${BUILDIFIER_BIN}"
+
+    mkdir -p "${HOME}/bin"
+    curl --silent --show-error --retry 10 --location \
+      "https://github.com/bazelbuild/buildtools/releases/download/0.20.0/${BUILDIFIER_BIN}" \
+      -o "${BUILDIFIER}" \
+    || { echo "Could not install required buildifier. Skip formatting." ; exit 1 ; }
+    chmod +x ${BUILDIFIER}
   fi
 fi
 
@@ -54,10 +78,21 @@ SOURCE_FILES=($(git ls-tree -r HEAD --name-only | grep -E '\.(h|c|cc|proto)$'))
 "${CLANG_FORMAT}" -style=Google -i "${SOURCE_FILES[@]}" \
   || { echo "Could not run clang-format." ; exit 1 ; }
 
-CHANGED_FILES=($(git diff HEAD --name-only | grep -E '\.(h|c|cc|proto)$'))
+CHANGED_SOURCE_FILES=($(git diff HEAD --name-only | grep -E '\.(h|c|cc|proto)$'))
+
+BAZEL_FILES=($(git ls-tree -r HEAD --name-only | grep -E '(\.bzl|BUILD|WORKSPACE)$'))
+"${BUILDIFIER}" "${BAZEL_FILES[@]}" \
+  || { echo "Could not run buildifier." ; exit 1 ; }
+
+CHANGED_BAZEL_FILES=($(git diff HEAD --name-only | grep -E '(\.bzl|BUILD|WORKSPACE)$'))
 
-if [[ "${#CHANGED_FILES}" -ne 0 ]]; then
-  echo "Files not formatted: ${CHANGED_FILES[@]}"
+if [[ "${#CHANGED_SOURCE_FILES}" -ne 0 ]]; then
+  echo -e "Source file(s) not formatted:\n${CHANGED_SOURCE_FILES[@]}"
+fi
+if [[ "${#CHANGED_BAZEL_FILES}" -ne 0 ]]; then
+  echo -e "Bazel file(s) not formatted:\n${CHANGED_BAZEL_FILES[@]}"
+fi
+if [[ "${#CHANGED_SOURCE_FILES}" -ne 0 || "${#CHANGED_BAZEL_FILES}" -ne 0 ]]; then
   exit 1
 fi
 echo "All files are properly formatted."

src/envoy/BUILD

@@ -38,8 +38,8 @@ envoy_cc_binary(
 
 pkg_tar(
     name = "envoy_tar",
+    srcs = [":envoy"],
     extension = "tar.gz",
-    files = [":envoy"],
     mode = "0755",
     package_dir = "/usr/local/bin/",
     tags = ["manual"],

src/envoy/http/authn/BUILD

@@ -44,9 +44,9 @@ envoy_cc_library(
     deps = [
         "//external:authentication_policy_config_cc_proto",
         "//src/envoy/http/jwt_auth:jwt_lib",
+        "//src/envoy/utils:filter_names_lib",
         "//src/envoy/utils:utils_lib",
         "//src/istio/authn:context_proto_cc",
-        "//src/envoy/utils:filter_names_lib",
     ],
 )
 
@@ -64,10 +64,10 @@ envoy_cc_library(
         ":authenticator",
         "//external:authentication_policy_config_cc_proto",
         "//src/envoy/utils:authn_lib",
+        "//src/envoy/utils:filter_names_lib",
         "//src/envoy/utils:utils_lib",
         "//src/istio/authn:context_proto_cc",
         "@envoy//source/exe:envoy_common_lib",
-        "//src/envoy/utils:filter_names_lib",
     ],
 )
 
@@ -99,8 +99,8 @@ envoy_cc_test(
     deps = [
         ":authenticator",
         ":test_utils",
-        "@envoy//test/mocks/network:network_mocks",
         "//src/envoy/utils:filter_names_lib",
+        "@envoy//test/mocks/network:network_mocks",
         "@envoy//test/mocks/ssl:ssl_mocks",
         "@envoy//test/test_common:utility_lib",
     ],
@@ -162,8 +162,8 @@ envoy_cc_test(
     repository = "@envoy",
     deps = [
         ":filter_lib",
+        "//src/envoy/utils:filter_names_lib",
         "@envoy//source/common/common:utility_lib",
         "@envoy//test/integration:http_protocol_integration_lib",
-        "//src/envoy/utils:filter_names_lib",
     ],
 )

src/envoy/http/jwt_auth/BUILD

@@ -69,8 +69,8 @@ envoy_cc_library(
     repository = "@envoy",
     deps = [
         ":jwt_authenticator_lib",
-        "@envoy//source/exe:envoy_common_lib",
         "//src/envoy/utils:filter_names_lib",
+        "@envoy//source/exe:envoy_common_lib",
     ],
 )
 
@@ -80,8 +80,8 @@ envoy_cc_library(
     repository = "@envoy",
     deps = [
         ":http_filter_lib",
-        "@envoy//source/exe:envoy_common_lib",
         "//src/envoy/utils:filter_names_lib",
+        "@envoy//source/exe:envoy_common_lib",
     ],
 )
 

src/envoy/tcp/forward_downstream_sni/BUILD

@@ -32,6 +32,7 @@ envoy_cc_library(
         "@envoy//source/exe:envoy_common_lib",
     ],
 )
+
 envoy_cc_library(
     name = "forward_downstream_sni_lib",
     srcs = ["forward_downstream_sni.cc"],
@@ -47,8 +48,8 @@ envoy_cc_test(
     srcs = ["forward_downstream_sni_test.cc"],
     repository = "@envoy",
     deps = [
-        ":forward_downstream_sni_lib",
         ":config_lib",
+        ":forward_downstream_sni_lib",
         "@envoy//test/mocks/network:network_mocks",
         "@envoy//test/mocks/server:server_mocks",
         "@envoy//test/mocks/stream_info:stream_info_mocks",

src/envoy/tcp/sni_verifier/BUILD

@@ -35,10 +35,10 @@ envoy_cc_library(
 
 envoy_cc_library(
     name = "sni_verifier_lib",
-    srcs = [ "sni_verifier.cc"],
-    hdrs = [ "sni_verifier.h"],
-    repository = "@envoy",
+    srcs = ["sni_verifier.cc"],
+    hdrs = ["sni_verifier.h"],
     external_deps = ["ssl"],
+    repository = "@envoy",
     deps = [
         "@envoy//source/exe:envoy_common_lib",
     ],
@@ -49,8 +49,8 @@ envoy_cc_test(
     srcs = ["sni_verifier_test.cc"],
     repository = "@envoy",
     deps = [
-        ":sni_verifier_lib",
         ":config_lib",
+        ":sni_verifier_lib",
         "@envoy//test/mocks/network:network_mocks",
         "@envoy//test/mocks/server:server_mocks",
         "@envoy//test/test_common:tls_utility_lib",

src/envoy/tcp/tcp_cluster_rewrite/BUILD

@@ -42,8 +42,8 @@ envoy_cc_library(
     repository = "@envoy",
     deps = [
         ":tcp_cluster_rewrite_lib",
-        "//src/envoy/utils:utils_lib",
         "//external:tcp_cluster_rewrite_config_cc_proto",
+        "//src/envoy/utils:utils_lib",
         "@envoy//source/exe:envoy_common_lib",
     ],
 )
@@ -53,8 +53,8 @@ envoy_cc_test(
     srcs = ["tcp_cluster_rewrite_test.cc"],
     repository = "@envoy",
     deps = [
-        ":tcp_cluster_rewrite_lib",
         ":config_lib",
+        ":tcp_cluster_rewrite_lib",
         "@envoy//test/mocks/network:network_mocks",
         "@envoy//test/mocks/server:server_mocks",
         "@envoy//test/mocks/stream_info:stream_info_mocks",

src/envoy/utils/BUILD

@@ -32,12 +32,12 @@ envoy_cc_library(
     repository = "@envoy",
     visibility = ["//visibility:public"],
     deps = [
+        ":filter_names_lib",
         ":utils_lib",
         "//include/istio/utils:attribute_names_header",
         "//src/istio/authn:context_proto_cc",
         "//src/istio/utils:attribute_names_lib",
         "//src/istio/utils:utils_lib",
-        ":filter_names_lib",
         "@envoy//source/exe:envoy_common_lib",
     ],
 )

src/istio/control/tcp/BUILD

@@ -46,8 +46,8 @@ cc_test(
     linkstatic = 1,
     deps = [
         ":control_lib",
-        "//src/istio/utils:utils_lib",
         "//external:googletest_main",
+        "//src/istio/utils:utils_lib",
     ],
 )
 

src/istio/utils/BUILD

@@ -20,18 +20,18 @@ cc_library(
         "local_attributes.cc",
         "protobuf.cc",
         "status.cc",
-        "utils.cc"
+        "utils.cc",
     ],
     hdrs = [
         "utils.h",
     ],
     visibility = ["//visibility:public"],
     deps = [
         ":attribute_names_lib",
+        "//external:mixer_client_config_cc_proto",
         "//external:protobuf",
-        "//include/istio/utils:headers_lib",
         "//include/istio/utils:attribute_names_header",
-        "//external:mixer_client_config_cc_proto",
+        "//include/istio/utils:headers_lib",
     ],
 )
 

test/integration/BUILD

@@ -26,14 +26,14 @@ envoy_cc_test(
     srcs = ["istio_http_integration_test.cc"],
     repository = "@envoy",
     deps = [
-        "@envoy//source/common/common:utility_lib",
-        "@envoy//test/integration:http_protocol_integration_lib",
         "//include/istio/utils:attribute_names_header",
         "//src/envoy/http/authn:filter_lib",
         "//src/envoy/http/jwt_auth:http_filter_factory",
         "//src/envoy/http/jwt_auth:jwt_lib",
-        "//src/envoy/utils:filter_names_lib",
         "//src/envoy/http/mixer:filter_lib",
+        "//src/envoy/utils:filter_names_lib",
+        "@envoy//source/common/common:utility_lib",
+        "@envoy//test/integration:http_protocol_integration_lib",
     ],
 )
 
@@ -42,13 +42,13 @@ envoy_cc_test(
     srcs = ["exchanged_token_integration_test.cc"],
     repository = "@envoy",
     deps = [
-        "@envoy//source/common/common:utility_lib",
-        "@envoy//test/integration:http_protocol_integration_lib",
         "//include/istio/utils:attribute_names_header",
         "//src/envoy/http/authn:filter_lib",
         "//src/envoy/http/jwt_auth:http_filter_factory",
         "//src/envoy/http/jwt_auth:jwt_lib",
-        "//src/envoy/utils:filter_names_lib",
         "//src/envoy/http/mixer:filter_lib",
+        "//src/envoy/utils:filter_names_lib",
+        "@envoy//source/common/common:utility_lib",
+        "@envoy//test/integration:http_protocol_integration_lib",
     ],
 )