waf/waflib/extras/protoc.py

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2012-09-27 21:08:26 +02:00
#!/usr/bin/env python
# encoding: utf-8
# Philipp Bender, 2012
# Matt Clarkson, 2012
from waflib.Task import Task
from waflib.TaskGen import extension
"""
A simple tool to integrate protocol buffers into your build system.
def configure(conf):
conf.load('compiler_cxx cxx protoc')
def build(bld):
bld(
features = 'cxx cxxprogram'
source = 'main.cpp file1.proto proto/file2.proto',
include = '. proto',
target = 'executable')
"""
class protoc(Task):
run_str = '${PROTOC} ${PROTOC_FLAGS} ${PROTOC_ST:INCPATHS} ${SRC[0].abspath()}'
color = 'BLUE'
ext_out = ['.h', 'pb.cc']
@extension('.proto')
def process_protoc(self, node):
cpp_node = node.change_ext('.pb.cc')
hpp_node = node.change_ext('.pb.h')
self.create_task('protoc', node, [cpp_node, hpp_node])
self.source.append(cpp_node)
if 'cxx' in self.features and not self.env.PROTOC_FLAGS:
self.env.PROTOC_FLAGS = '--cpp_out=%s' % node.parent.get_bld().abspath()
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use = getattr(self, 'use', '')
if not 'PROTOBUF' in use:
self.use = self.to_list(use) + ['PROTOBUF']
def configure(conf):
conf.check_cfg(package="protobuf", uselib_store="PROTOBUF", args=['--cflags', '--libs'])
conf.find_program('protoc', var='PROTOC')
conf.env.PROTOC_ST = '-I%s'