Run buildifer on Bazel files

.circleci/config.yml

@@ -50,21 +50,22 @@ jobs:
       - run: dep ensure --vendor-only
       - run: go get golang.org/x/lint/golint
       - run: make lint
-  bazel_build:
+  bazel_lint:
     docker:
       - image: l.gcr.io/google/bazel:latest
     working_directory: /go/src/github.com/grpc-ecosystem/grpc-gateway
     steps:
       - checkout
-      - run: bazel --batch --output_base=$HOME/.cache/_grpc_gateway_bazel run //:gazelle_diff
-      - run: bazel --batch --output_base=$HOME/.cache/_grpc_gateway_bazel build //...
+      - run: 'bazel --output_base=$HOME/.cache/_grpc_gateway_bazel run //:buildifier_check ||
+              (echo "Bazel files not formatted, please run \`bazel run :buildifier\`"; exit 1)'
+      - run: bazel --output_base=$HOME/.cache/_grpc_gateway_bazel run //:gazelle_diff
   bazel_test:
     docker:
       - image: l.gcr.io/google/bazel:latest
     working_directory: /go/src/github.com/grpc-ecosystem/grpc-gateway
     steps:
       - checkout
-      - run: bazel --batch --output_base=$HOME/.cache/_grpc_gateway_bazel test --test_output=errors --features=race //...
+      - run: bazel --output_base=$HOME/.cache/_grpc_gateway_bazel test --test_output=errors --features=race //...
   build_linux_release:
     docker:
       - image: jfbrandhorst/grpc-gateway-build-env
@@ -151,7 +152,7 @@ workflows:
       - node_test
       - generate
       - lint
-      - bazel_build
+      - bazel_lint
       - bazel_test
       - build_linux_release:
           filters:

BUILD

@@ -1,4 +1,14 @@
 load("@bazel_gazelle//:def.bzl", "gazelle")
+load("@com_github_bazelbuild_buildtools//buildifier:def.bzl", "buildifier")
+
+buildifier(
+    name = "buildifier",
+)
+
+buildifier(
+    name = "buildifier_check",
+    mode = "check",
+)
 
 # gazelle:exclude third_party
 

WORKSPACE

@@ -4,14 +4,21 @@ load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
 
 http_archive(
     name = "io_bazel_rules_go",
-    url = "https://github.com/bazelbuild/rules_go/releases/download/0.12.1/rules_go-0.12.1.tar.gz",
     sha256 = "8b68d0630d63d95dacc0016c3bb4b76154fe34fca93efd65d1c366de3fcb4294",
+    url = "https://github.com/bazelbuild/rules_go/releases/download/0.12.1/rules_go-0.12.1.tar.gz",
 )
 
 http_archive(
     name = "bazel_gazelle",
-    url = "https://github.com/bazelbuild/bazel-gazelle/releases/download/0.10.1/bazel-gazelle-0.10.1.tar.gz",
     sha256 = "d03625db67e9fb0905bbd206fa97e32ae9da894fe234a493e7517fd25faec914",
+    url = "https://github.com/bazelbuild/bazel-gazelle/releases/download/0.10.1/bazel-gazelle-0.10.1.tar.gz",
+)
+
+http_archive(
+    name = "com_github_bazelbuild_buildtools",
+    sha256 = "e4c83a7a5d0712e2cea2077112a5eb6bb1af75a84e34c8c9b77330e322966b8b",
+    strip_prefix = "buildtools-e90e7cc6ef3e6d08d4ca8a982935c3eed638e058",
+    url = "https://github.com/bazelbuild/buildtools/archive/e90e7cc6ef3e6d08d4ca8a982935c3eed638e058.tar.gz",
 )
 
 load("@bazel_gazelle//:deps.bzl", "gazelle_dependencies")
@@ -20,7 +27,7 @@ gazelle_dependencies()
 
 load("@bazel_gazelle//:def.bzl", "go_repository")
 load("//:repositories.bzl", "repositories")
-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")
 
 # Also define in Gopkg.toml
 go_repository(
@@ -45,20 +52,24 @@ go_repository(
 
 # Also define in Gopkg.toml
 go_repository(
-	name = "com_github_ghodss_yaml",
-	commit = "0ca9ea5df5451ffdf184b4428c902747c2c11cd7",
-	importpath = "github.com/ghodss/yaml",
+    name = "com_github_ghodss_yaml",
+    commit = "0ca9ea5df5451ffdf184b4428c902747c2c11cd7",
+    importpath = "github.com/ghodss/yaml",
 )
 
 # Also define in Gopkg.toml
 go_repository(
-	name = "in_gopkg_yaml_v2",
-	commit = "eb3733d160e74a9c7e442f435eb3bea458e1d19f",
-	importpath = "gopkg.in/yaml.v2",
+    name = "in_gopkg_yaml_v2",
+    commit = "eb3733d160e74a9c7e442f435eb3bea458e1d19f",
+    importpath = "gopkg.in/yaml.v2",
 )
 
 repositories()
 
 go_rules_dependencies()
 
 go_register_toolchains()
+
+load("@com_github_bazelbuild_buildtools//buildifier:deps.bzl", "buildifier_dependencies")
+
+buildifier_dependencies()

examples/clients/abe/BUILD.bazel

@@ -29,6 +29,6 @@ go_library(
         "//examples/proto/examplepb:go_default_library",
         "//examples/proto/pathenum:go_default_library",
         "//runtime:go_default_library",
-        "@com_github_go_resty_resty//:go_default_library"
+        "@com_github_go_resty_resty//:go_default_library",
     ],
 )

examples/proto/examplepb/BUILD.bazel

@@ -17,10 +17,10 @@ proto_library(
         "a_bit_of_everything.proto",
         "echo_service.proto",
         "flow_combination.proto",
+        "response_body_service.proto",
         "stream.proto",
         "unannotated_echo_service.proto",
         "wrappers.proto",
-        "response_body_service.proto",
     ],
     deps = [
         "//examples/proto/pathenum:pathenum_proto",

examples/server/BUILD.bazel

@@ -9,8 +9,8 @@ go_library(
         "echo.go",
         "flow_combination.go",
         "main.go",
-        "unannotatedecho.go",
         "responsebody.go",
+        "unannotatedecho.go",
     ],
     importpath = "github.com/grpc-ecosystem/grpc-gateway/examples/server",
     deps = [

protoc-gen-swagger/defs.bzl

@@ -33,34 +33,34 @@ def _collect_includes(gen_dir, srcs):
 def _run_proto_gen_swagger(ctx, direct_proto_srcs, transitive_proto_srcs, actions, protoc, protoc_gen_swagger, grpc_api_configuration):
     swagger_files = []
     for proto in direct_proto_srcs:
-      swagger_file = actions.declare_file(
-          "%s.swagger.json" % proto.basename[:-len(".proto")],
-          sibling = proto,
-      )
+        swagger_file = actions.declare_file(
+            "%s.swagger.json" % proto.basename[:-len(".proto")],
+            sibling = proto,
+        )
 
-      inputs = direct_proto_srcs + transitive_proto_srcs + [protoc_gen_swagger]
+        inputs = direct_proto_srcs + transitive_proto_srcs + [protoc_gen_swagger]
 
-      options=["logtostderr=true"]
-      if grpc_api_configuration:
-          options.append("grpc_api_configuration=%s" % grpc_api_configuration.path)
-          inputs.append(grpc_api_configuration)
+        options = ["logtostderr=true"]
+        if grpc_api_configuration:
+            options.append("grpc_api_configuration=%s" % grpc_api_configuration.path)
+            inputs.append(grpc_api_configuration)
 
-      includes = _collect_includes(ctx.genfiles_dir.path, direct_proto_srcs + transitive_proto_srcs)
+        includes = _collect_includes(ctx.genfiles_dir.path, direct_proto_srcs + transitive_proto_srcs)
 
-      args = actions.args()
-      args.add("--plugin=%s" % protoc_gen_swagger.path)
-      args.add("--swagger_out=%s:%s" % (",".join(options), ctx.bin_dir.path))
-      args.add(["-I%s" % include for include in includes])
-      args.add(proto.path)
+        args = actions.args()
+        args.add("--plugin=%s" % protoc_gen_swagger.path)
+        args.add("--swagger_out=%s:%s" % (",".join(options), ctx.bin_dir.path))
+        args.add(["-I%s" % include for include in includes])
+        args.add(proto.path)
 
-      actions.run(
-          executable = protoc,
-          inputs = inputs,
-          outputs = [swagger_file],
-          arguments = [args],
-      )
+        actions.run(
+            executable = protoc,
+            inputs = inputs,
+            outputs = [swagger_file],
+            arguments = [args],
+        )
 
-      swagger_files.append(swagger_file)
+        swagger_files.append(swagger_file)
 
     return swagger_files
 
@@ -69,29 +69,29 @@ def _proto_gen_swagger_impl(ctx):
     grpc_api_configuration = ctx.file.grpc_api_configuration
 
     return struct(
-        files=depset(
+        files = depset(
             _run_proto_gen_swagger(
                 ctx,
                 direct_proto_srcs = proto.direct_sources,
                 transitive_proto_srcs = ctx.files._well_known_protos + proto.transitive_sources.to_list(),
                 actions = ctx.actions,
                 protoc = ctx.executable._protoc,
                 protoc_gen_swagger = ctx.executable._protoc_gen_swagger,
-                grpc_api_configuration = grpc_api_configuration
-            )
-        )
+                grpc_api_configuration = grpc_api_configuration,
+            ),
+        ),
     )
 
 protoc_gen_swagger = rule(
     attrs = {
         "proto": attr.label(
             allow_rules = ["proto_library"],
             mandatory = True,
-            providers = ['proto'],
+            providers = ["proto"],
         ),
         "grpc_api_configuration": attr.label(
-            allow_single_file=True,
-            mandatory=False
+            allow_single_file = True,
+            mandatory = False,
         ),
         "_protoc": attr.label(
             default = "@com_google_protobuf//:protoc",

repositories.bzl

@@ -39,11 +39,9 @@ def _googleapis_repository_impl(ctx):
 
     ctx.file("google/api/BUILD.bazel", GOOGLEAPIS_GOOGLE_API_BUILD_CONTENTS)
 
-
 _googleapis_repository = repository_rule(
     implementation = _googleapis_repository_impl,
 )
 
-
 def repositories():
     _googleapis_repository(name = "com_github_googleapis_googleapis")

runtime/BUILD.bazel

@@ -73,8 +73,8 @@ go_test(
         "@com_github_golang_protobuf//ptypes/struct:go_default_library",
         "@com_github_golang_protobuf//ptypes/timestamp:go_default_library",
         "@com_github_golang_protobuf//ptypes/wrappers:go_default_library",
-        "@org_golang_google_genproto//protobuf/field_mask:go_default_library",
         "@org_golang_google_genproto//googleapis/rpc/errdetails:go_default_library",
+        "@org_golang_google_genproto//protobuf/field_mask:go_default_library",
         "@org_golang_google_grpc//:go_default_library",
         "@org_golang_google_grpc//codes:go_default_library",
         "@org_golang_google_grpc//metadata:go_default_library",