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'''This file automatically rebuilds the proto definitions for Python.'''
import os
import os.path
import sys
import subprocess
dirname = os.path.dirname(__file__)
protosrc = os.path.join(dirname, "nanopb.proto")
protodst = os.path.join(dirname, "nanopb_pb2.py")
if os.path.isfile(protosrc):
src_date = os.path.getmtime(protosrc)
if not os.path.isfile(protodst) or os.path.getmtime(protodst) < src_date:
cmd = ["protoc", "--python_out=.", "nanopb.proto", "plugin.proto"]
status = subprocess.call(cmd, cwd = dirname)
if status != 0:
sys.stderr.write("Failed to build nanopb_pb2.py: " + ' '.join(cmd) + "\n")
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