Replace rustfmt::skip with cfg_attr(rustfmt, rustfmt::skip)

As temporary work around for #551

Author: stepancheg

protobuf-codegen/src/code_writer.rs

@@ -62,7 +62,7 @@ impl<'a> CodeWriter<'a> {
         self.write_line("#![allow(clippy::all)]");
         self.write_line("");
         self.write_line("#![allow(unused_attributes)]");
-        self.write_line("#![rustfmt::skip]");
+        self.write_line("#![cfg_attr(rustfmt, rustfmt::skip)]");
         self.write_line("");
         self.write_line("#![allow(box_pointers)]");
         self.write_line("#![allow(dead_code)]");

protobuf-codegen/src/well_known_types.rs

@@ -119,7 +119,7 @@ pub(crate) fn gen_well_known_types_mod(
 
         w.write_line("");
         w.write_line("#![allow(unused_attributes)]");
-        w.write_line("#![rustfmt::skip]");
+        w.write_line("#![cfg_attr(rustfmt, rustfmt::skip)]");
 
         w.write_line("");
         for m in WELL_KNOWN_TYPES_PROTO_FILE_NAMES {

protobuf/src/descriptor.rs

@@ -7,7 +7,7 @@
 #![allow(clippy::all)]
 
 #![allow(unused_attributes)]
-#![rustfmt::skip]
+#![cfg_attr(rustfmt, rustfmt::skip)]
 
 #![allow(box_pointers)]
 #![allow(dead_code)]

protobuf/src/doctest_pb.rs

@@ -7,7 +7,7 @@
 #![allow(clippy::all)]
 
 #![allow(unused_attributes)]
-#![rustfmt::skip]
+#![cfg_attr(rustfmt, rustfmt::skip)]
 
 #![allow(box_pointers)]
 #![allow(dead_code)]

protobuf/src/plugin.rs

@@ -7,7 +7,7 @@
 #![allow(clippy::all)]
 
 #![allow(unused_attributes)]
-#![rustfmt::skip]
+#![cfg_attr(rustfmt, rustfmt::skip)]
 
 #![allow(box_pointers)]
 #![allow(dead_code)]

protobuf/src/rustproto.rs

@@ -7,7 +7,7 @@
 #![allow(clippy::all)]
 
 #![allow(unused_attributes)]
-#![rustfmt::skip]
+#![cfg_attr(rustfmt, rustfmt::skip)]
 
 #![allow(box_pointers)]
 #![allow(dead_code)]

protobuf/src/well_known_types/any.rs

@@ -7,7 +7,7 @@
 #![allow(clippy::all)]
 
 #![allow(unused_attributes)]
-#![rustfmt::skip]
+#![cfg_attr(rustfmt, rustfmt::skip)]
 
 #![allow(box_pointers)]
 #![allow(dead_code)]

protobuf/src/well_known_types/api.rs

@@ -7,7 +7,7 @@
 #![allow(clippy::all)]
 
 #![allow(unused_attributes)]
-#![rustfmt::skip]
+#![cfg_attr(rustfmt, rustfmt::skip)]
 
 #![allow(box_pointers)]
 #![allow(dead_code)]

protobuf/src/well_known_types/duration.rs

@@ -7,7 +7,7 @@
 #![allow(clippy::all)]
 
 #![allow(unused_attributes)]
-#![rustfmt::skip]
+#![cfg_attr(rustfmt, rustfmt::skip)]
 
 #![allow(box_pointers)]
 #![allow(dead_code)]

protobuf/src/well_known_types/empty.rs

@@ -7,7 +7,7 @@
 #![allow(clippy::all)]
 
 #![allow(unused_attributes)]
-#![rustfmt::skip]
+#![cfg_attr(rustfmt, rustfmt::skip)]
 
 #![allow(box_pointers)]
 #![allow(dead_code)]

protobuf/src/well_known_types/field_mask.rs

@@ -7,7 +7,7 @@
 #![allow(clippy::all)]
 
 #![allow(unused_attributes)]
-#![rustfmt::skip]
+#![cfg_attr(rustfmt, rustfmt::skip)]
 
 #![allow(box_pointers)]
 #![allow(dead_code)]

protobuf/src/well_known_types/mod.rs

@@ -5,7 +5,7 @@
 //! [This document](https://developers.google.com/protocol-buffers/docs/reference/google.protobuf) describes these types.
 
 #![allow(unused_attributes)]
-#![rustfmt::skip]
+#![cfg_attr(rustfmt, rustfmt::skip)]
 
 mod any;
 mod api;

protobuf/src/well_known_types/source_context.rs

@@ -7,7 +7,7 @@
 #![allow(clippy::all)]
 
 #![allow(unused_attributes)]
-#![rustfmt::skip]
+#![cfg_attr(rustfmt, rustfmt::skip)]
 
 #![allow(box_pointers)]
 #![allow(dead_code)]

protobuf/src/well_known_types/struct_pb.rs

@@ -7,7 +7,7 @@
 #![allow(clippy::all)]
 
 #![allow(unused_attributes)]
-#![rustfmt::skip]
+#![cfg_attr(rustfmt, rustfmt::skip)]
 
 #![allow(box_pointers)]
 #![allow(dead_code)]

protobuf/src/well_known_types/timestamp.rs

@@ -7,7 +7,7 @@
 #![allow(clippy::all)]
 
 #![allow(unused_attributes)]
-#![rustfmt::skip]
+#![cfg_attr(rustfmt, rustfmt::skip)]
 
 #![allow(box_pointers)]
 #![allow(dead_code)]

protobuf/src/well_known_types/type_pb.rs

@@ -7,7 +7,7 @@
 #![allow(clippy::all)]
 
 #![allow(unused_attributes)]
-#![rustfmt::skip]
+#![cfg_attr(rustfmt, rustfmt::skip)]
 
 #![allow(box_pointers)]
 #![allow(dead_code)]

protobuf/src/well_known_types/wrappers.rs

@@ -7,7 +7,7 @@
 #![allow(clippy::all)]
 
 #![allow(unused_attributes)]
-#![rustfmt::skip]
+#![cfg_attr(rustfmt, rustfmt::skip)]
 
 #![allow(box_pointers)]
 #![allow(dead_code)]