fix options file; fix generated include guards

build.yaml

@@ -34,6 +34,7 @@ filegroups:
   plugin: census_grpc_plugin
   uses:
   - grpc_base
+  - nanopb
 - name: gpr_base
   public_headers:
   - include/grpc/support/alloc.h

src/core/ext/census/gen/census.pb.h

@@ -33,8 +33,8 @@
 /* Automatically generated nanopb header */
 /* Generated by nanopb-0.3.5-dev */
 
-#ifndef PB_CENSUS_PB_H_INCLUDED
-#define PB_CENSUS_PB_H_INCLUDED
+#ifndef GRPC_CORE_EXT_CENSUS_GEN_CENSUS_PB_H
+#define GRPC_CORE_EXT_CENSUS_GEN_CENSUS_PB_H
 #include "third_party/nanopb/pb.h"
 #if PB_PROTO_HEADER_VERSION != 30
 #error Regenerate this file with the current version of nanopb generator.

src/proto/census/census.options

@@ -1,3 +1,3 @@
 google.census.Tag.key max_size:255
 google.census.Tag.value max_size:255
-google.census.View.tag_keys max_count 15
+google.census.View.tag_key max_count:15

third_party/protobuf

@@ -1 +1 @@
-Subproject commit 3470b6895aa659b7559ed678e029a5338e535f14
+Subproject commit a1938b2aa9ca86ce7ce50c27ff9737c1008d2a03

tools/codegen/core/gen_nano_proto.sh

@@ -136,6 +136,13 @@ readonly PROTO_BASENAME=$(basename $INPUT_PROTO .proto)
 sed -i "s:$PROTO_BASENAME.pb.h:${GRPC_OUTPUT_DIR}/$PROTO_BASENAME.pb.h:g" \
   "$OUTPUT_DIR/$PROTO_BASENAME.pb.c"
 
+# Fix up the include guards such that they pass the check_include_guards.py
+# test. Assumes that the generated files are being placed in gRPC src dir.
+readonly INCLUDE_GUARD_BASE=`echo $GRPC_OUTPUT_DIR | tr [a-z/] [A-Z_] | sed s:^.*SRC_::`
+readonly UC_PROTO_BASENAME=`echo $PROTO_BASENAME | tr [a-z] [A-Z]`
+sed -i "s:PB_${UC_PROTO_BASENAME}_PB_H_INCLUDED:GRPC_${INCLUDE_GUARD_BASE}_${UC_PROTO_BASENAME}_PB_H:g" \
+  "$OUTPUT_DIR/$PROTO_BASENAME.pb.h"
+
 # prepend copyright
 TMPFILE=$(mktemp)
 cat $COPYRIGHT_FILE "$OUTPUT_DIR/$PROTO_BASENAME.pb.c" > $TMPFILE