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Make generator print errors to stderr.

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Otherwise they won't be visible when run as a protoc plugin.
This commit is contained in:
Petteri Aimonen
2013-12-03 18:44:25 +02:00
parent 1fc90ab4c4
commit dde71cb426
1 changed files with 14 additions and 12 deletions
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26
generator/nanopb_generator.py
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@@ -3,28 +3,30 @@
'''Generate header file for nanopb from a ProtoBuf FileDescriptorSet.'''
nanopb_version = "nanopb-0.2.5-dev"
import sys
try:
import google, distutils.util # bbfreeze seems to need these
import google.protobuf.text_format as text_format
except:
print
print "*************************************************************"
print "*** Could not import the Google protobuf Python libraries ***"
print "*** Try installing package 'python-protobuf' or similar. ***"
print "*************************************************************"
print
sys.stderr.write('''
*************************************************************
*** Could not import the Google protobuf Python libraries ***
*** Try installing package 'python-protobuf' or similar. ***
*************************************************************
''' + '\n')
raise
try:
import proto.nanopb_pb2 as nanopb_pb2
import proto.descriptor_pb2 as descriptor
except:
print
print "********************************************************************"
print "*** Failed to import the protocol definitions for generator. ***"
print "*** You have to run 'make' in the nanopb/generator/proto folder. ***"
print "********************************************************************"
print
sys.stderr.write('''
********************************************************************
*** Failed to import the protocol definitions for generator. ***
*** You have to run 'make' in the nanopb/generator/proto folder. ***
********************************************************************
''' + '\n')
raise