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#!/usr/bin/env python
#
# gen-py-errors.py: Generate a python module which maps error names to numbers.
# (The purpose being easier writing of the python tests.)
#
# ====================================================================
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
# ====================================================================
#
#
# Locates svn_error_codes.h based on its relative location to this script.
#
# Generates to STDOUT. Typically, redirect this into svntest/err.py
#
import sys
import os
import re
HEADER = '''#!/usr/bin/env python
### This file automatically generated by tools/dev/gen-py-errors.py,
### which see for more information
###
### It is versioned for convenience.
'''
# Established by svn 1.0. May as well hard-code these.
APR_OS_START_ERROR = 20000
APR_OS_START_USERERR = APR_OS_START_ERROR + 50000 * 2
SVN_ERR_CATEGORY_SIZE = 5000
RE_CAT_NAME = re.compile(r'SVN_ERR_([A-Z_]+)_CATEG')
RE_CAT_VALUE = re.compile(r'\d+')
RE_DEF_NAME = re.compile(r'SVN_ERRDEF\(([A-Z0-9_]+)')
RE_DEF_VALUE = re.compile(r'SVN_ERR_([A-Z_]+)_CATEG[^0-9]*([0-9]+)')
def write_output(codes):
print(HEADER)
for name, value in codes:
# skip SVN_ERR_ on the name
print('%s = %d' % (name[8:], value))
def main(codes_fname):
categ = { }
codes = [ ]
f = open(codes_fname)
# Parse all the category start values
while True:
line = f.next()
m = RE_CAT_NAME.search(line)
if m:
name = m.group(1)
m = RE_CAT_VALUE.search(f.next())
assert m
value = int(m.group(0))
categ[name] = APR_OS_START_USERERR + value * SVN_ERR_CATEGORY_SIZE
elif line.strip() == 'SVN_ERROR_START':
break
# Parse each of the error values
while True:
line = f.next()
m = RE_DEF_NAME.search(line)
if m:
name = m.group(1)
line = f.next()
m = RE_DEF_VALUE.search(line)
if not m:
# SVN_ERR_WC_NOT_DIRECTORY is defined as equal to NOT_WORKING_COPY
# rather than relative to SVN_ERR_WC_CATEGORY_START
#print 'SKIP:', line
continue
cat = m.group(1)
value = int(m.group(2))
codes.append((name, categ[cat] + value))
elif line.strip() == 'SVN_ERROR_END':
break
write_output(sorted(codes))
if __name__ == '__main__':
this_dir = os.path.dirname(os.path.abspath(__file__))
codes_fname = os.path.join(this_dir, os.path.pardir, os.path.pardir,
'subversion', 'include', 'svn_error_codes.h')
main(codes_fname)
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