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#!/usr/bin/python
import sys
import re
import string
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 = self.headers.keys()
headers.sort()
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 = nodepaths.keys()
paths.sort()
for path in paths:
nodepath = nodepaths[path]
nodepath.dump()
sys.stderr.write('done\n')
def parse_header_block(fp):
headers = {}
while 1:
line = fp.readline()
if line == '':
return headers, 1
line = string.strip(line)
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 1:
# Parse a block of headers
headers, eof = parse_header_block(fp)
# This is a revision header block
if headers.has_key('Revision-number'):
# 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 headers.has_key('Node-path'):
# 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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