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#!/usr/bin/env bash
# Run this script to regenerate descriptor.pb.{h,cc} after the protocol
# compiler changes. Since these files are compiled into the protocol compiler
# itself, they cannot be generated automatically by a make rule. "make check"
# will fail if these files do not match what the protocol compiler would
# generate.
#
# HINT: Flags passed to generate_descriptor_proto.sh will be passed directly
# to make when building protoc. This is particularly useful for passing
# -j4 to run 4 jobs simultaneously.
if test ! -e src/google/protobuf/stubs/common.h; then
cat >&2 << __EOF__
Could not find source code. Make sure you are running this script from the
root of the distribution tree.
__EOF__
exit 1
fi
cd src
declare -a RUNTIME_PROTO_FILES=(\
google/protobuf/any.proto \
google/protobuf/api.proto \
google/protobuf/descriptor.proto \
google/protobuf/duration.proto \
google/protobuf/empty.proto \
google/protobuf/field_mask.proto \
google/protobuf/source_context.proto \
google/protobuf/struct.proto \
google/protobuf/timestamp.proto \
google/protobuf/type.proto \
google/protobuf/wrappers.proto)
declare -a COMPILER_PROTO_FILES=(\
google/protobuf/compiler/plugin.proto)
CORE_PROTO_IS_CORRECT=0
PROCESS_ROUND=1
BOOTSTRAP_PROTOC=""
while [ $# -gt 0 ]; do
case $1 in
--bootstrap_protoc)
BOOTSTRAP_PROTOC=$2
shift 2
;;
*)
break
;;
esac
shift
done
TMP=$(mktemp -d)
echo "Updating descriptor protos..."
while [ $CORE_PROTO_IS_CORRECT -ne 1 ]
do
echo "Round $PROCESS_ROUND"
CORE_PROTO_IS_CORRECT=1
if [ "$BOOTSTRAP_PROTOC" != "" ]; then
PROTOC=$BOOTSTRAP_PROTOC
BOOTSTRAP_PROTOC=""
else
make $@ protoc
if test $? -ne 0; then
echo "Failed to build protoc."
exit 1
fi
PROTOC="./protoc"
fi
$PROTOC --cpp_out=dllexport_decl=PROTOBUF_EXPORT:$TMP ${RUNTIME_PROTO_FILES[@]} && \
$PROTOC --cpp_out=dllexport_decl=PROTOC_EXPORT:$TMP ${COMPILER_PROTO_FILES[@]}
for PROTO_FILE in ${RUNTIME_PROTO_FILES[@]} ${COMPILER_PROTO_FILES[@]}; do
BASE_NAME=${PROTO_FILE%.*}
diff ${BASE_NAME}.pb.h $TMP/${BASE_NAME}.pb.h > /dev/null
if test $? -ne 0; then
CORE_PROTO_IS_CORRECT=0
fi
diff ${BASE_NAME}.pb.cc $TMP/${BASE_NAME}.pb.cc > /dev/null
if test $? -ne 0; then
CORE_PROTO_IS_CORRECT=0
fi
done
# Only override the output if the files are different to avoid re-compilation
# of the protoc.
if [ $CORE_PROTO_IS_CORRECT -ne 1 ]; then
for PROTO_FILE in ${RUNTIME_PROTO_FILES[@]} ${COMPILER_PROTO_FILES[@]}; do
BASE_NAME=${PROTO_FILE%.*}
mv $TMP/${BASE_NAME}.pb.h ${BASE_NAME}.pb.h
mv $TMP/${BASE_NAME}.pb.cc ${BASE_NAME}.pb.cc
done
fi
PROCESS_ROUND=$((PROCESS_ROUND + 1))
done
cd ..
if test -x objectivec/generate_well_known_types.sh; then
echo "Generating messages for objc."
objectivec/generate_well_known_types.sh $@
fi
if test -x csharp/generate_protos.sh; then
echo "Generating messages for C#."
csharp/generate_protos.sh $@
fi
if test -x php/generate_descriptor_protos.sh; then
echo "Generating messages for PHP."
php/generate_descriptor_protos.sh $@
fi
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