Files
rippled/site_scons/site_tools/protoc.py
2014-05-01 09:53:42 -07:00

96 lines
3.3 KiB
Python

#
# Copyright (c) 2009 Scott Stafford
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
# Author : Scott Stafford
# Date : 2009-12-09 20:36:14
#
# Changes : Vinnie Falco <vinnie.falco@gmail.com>
# Date : 2014--4-25
"""
protoc.py: Protoc Builder for SCons
This Builder invokes protoc to generate C++ and Python from a .proto file.
NOTE: Java is not currently supported.
"""
__author__ = "Scott Stafford"
import SCons.Action
import SCons.Builder
import SCons.Defaults
import SCons.Node.FS
import SCons.Util
from SCons.Script import File, Dir
import os.path
protocs = 'protoc'
ProtocAction = SCons.Action.Action('$PROTOCCOM', '$PROTOCCOMSTR')
def ProtocEmitter(target, source, env):
PROTOCOUTDIR = env['PROTOCOUTDIR']
PROTOCPYTHONOUTDIR = env['PROTOCPYTHONOUTDIR']
for source_path in [str(x) for x in source]:
base = os.path.splitext(os.path.basename(source_path))[0]
if PROTOCOUTDIR:
target.extend([os.path.join(PROTOCOUTDIR, base + '.pb.cc'),
os.path.join(PROTOCOUTDIR, base + '.pb.h')])
if PROTOCPYTHONOUTDIR:
target.append(os.path.join(PROTOCPYTHONOUTDIR, base + '_pb2.py'))
try:
target.append(env['PROTOCFDSOUT'])
except KeyError:
pass
#print "PROTOC SOURCE:", [str(s) for s in source]
#print "PROTOC TARGET:", [str(s) for s in target]
return target, source
ProtocBuilder = SCons.Builder.Builder(action = ProtocAction,
emitter = ProtocEmitter,
srcsuffix = '$PROTOCSRCSUFFIX')
def generate(env):
"""Add Builders and construction variables for protoc to an Environment."""
try:
bld = env['BUILDERS']['Protoc']
except KeyError:
bld = ProtocBuilder
env['BUILDERS']['Protoc'] = bld
env['PROTOC'] = env.Detect(protocs) or 'protoc'
env['PROTOCFLAGS'] = SCons.Util.CLVar('')
env['PROTOCPROTOPATH'] = SCons.Util.CLVar('')
env['PROTOCCOM'] = '$PROTOC ${["-I%s"%x for x in PROTOCPROTOPATH]} $PROTOCFLAGS --cpp_out=$PROTOCCPPOUTFLAGS$PROTOCOUTDIR ${PROTOCPYTHONOUTDIR and ("--python_out="+PROTOCPYTHONOUTDIR) or ""} ${PROTOCFDSOUT and ("-o"+PROTOCFDSOUT) or ""} ${SOURCES}'
env['PROTOCOUTDIR'] = '${SOURCE.dir}'
env['PROTOCPYTHONOUTDIR'] = "python"
env['PROTOCSRCSUFFIX'] = '.proto'
def exists(env):
return env.Detect(protocs)