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#!/usr/bin/env python
#
#
# 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.
#
#
import sys
import re
header_re = re.compile(r'^([^:]*): ?(.*)$')
class NodePath:
def __init__(self, path, headers):
self.path = path
self.headers = headers
def dump(self):
print((' ' * 3) + self.path)
headers = sorted(self.headers.keys())
for header in headers:
print((' ' * 6) + header + ': ' + self.headers[header])
def dump_revision(rev, nodepaths):
sys.stderr.write('* Normalizing revision ' + rev + '...')
print('Revision ' + rev)
paths = sorted(nodepaths.keys())
for path in paths:
nodepath = nodepaths[path]
nodepath.dump()
sys.stderr.write('done\n')
def parse_header_block(fp):
headers = {}
while True:
line = fp.readline()
if line == '':
return headers, 1
line = line.strip()
if line == '':
return headers, 0
matches = header_re.match(line)
if not matches:
raise Exception('Malformed header block')
headers[matches.group(1)] = matches.group(2)
def parse_file(fp):
nodepaths = {}
current_rev = None
while True:
# Parse a block of headers
headers, eof = parse_header_block(fp)
# This is a revision header block
if 'Revision-number' in headers:
# If there was a previous revision, dump it
if current_rev:
dump_revision(current_rev, nodepaths)
# Reset the data for this revision
current_rev = headers['Revision-number']
nodepaths = {}
# Skip the contents
prop_len = headers.get('Prop-content-length', 0)
fp.read(int(prop_len))
# This is a node header block
elif 'Node-path' in headers:
# Make a new NodePath object, and add it to the
# dictionary thereof
path = headers['Node-path']
node = NodePath(path, headers)
nodepaths[path] = node
# Skip the content
text_len = headers.get('Text-content-length', 0)
prop_len = headers.get('Prop-content-length', 0)
fp.read(int(text_len) + int(prop_len))
# Not a revision, not a node -- if we've already seen at least
# one revision block, we are in an errorful state.
elif current_rev and len(headers.keys()):
raise Exception('Header block from outta nowhere')
if eof:
if current_rev:
dump_revision(current_rev, nodepaths)
break
def usage():
print('Usage: ' + sys.argv[0] + ' [DUMPFILE]')
print('')
print('Reads a Subversion dumpfile from DUMPFILE (or, if not provided,')
print('from stdin) and normalizes the metadata contained therein,')
print('printing summarized and sorted information. This is useful for')
print('generating data about dumpfiles in a diffable fashion.')
sys.exit(0)
def main():
if len(sys.argv) > 1:
if sys.argv[1] == '--help':
usage()
fp = open(sys.argv[1], 'rb')
else:
fp = sys.stdin
parse_file(fp)
if __name__ == '__main__':
main()
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