extdiff: prepare sections of dodiff() for conditionalizing
This is purely indenting under an unconditional branch, so that the actual
changes in the next patch are clear. Feel free to fold them if desired.
# Read the output of a "svn log --xml" command on stdin, parse it and
# print a subset of attributes common to all svn versions tested by
# hg.
import xml.dom.minidom, sys
def xmltext(e):
return ''.join(c.data for c
in e.childNodes
if c.nodeType == c.TEXT_NODE)
def parseentry(entry):
e = {}
e['revision'] = entry.getAttribute('revision')
e['author'] = xmltext(entry.getElementsByTagName('author')[0])
e['msg'] = xmltext(entry.getElementsByTagName('msg')[0])
e['paths'] = []
paths = entry.getElementsByTagName('paths')
if paths:
paths = paths[0]
for p in paths.getElementsByTagName('path'):
action = p.getAttribute('action')
path = xmltext(p)
frompath = p.getAttribute('copyfrom-path')
fromrev = p.getAttribute('copyfrom-rev')
e['paths'].append((path, action, frompath, fromrev))
return e
def parselog(data):
entries = []
doc = xml.dom.minidom.parseString(data)
for e in doc.getElementsByTagName('logentry'):
entries.append(parseentry(e))
return entries
def printentries(entries):
fp = sys.stdout
for e in entries:
for k in ('revision', 'author', 'msg'):
fp.write(('%s: %s\n' % (k, e[k])).encode('utf-8'))
for path, action, fpath, frev in sorted(e['paths']):
frominfo = ''
if frev:
frominfo = ' (from %s@%s)' % (fpath, frev)
p = ' %s %s%s\n' % (action, path, frominfo)
fp.write(p.encode('utf-8'))
if __name__ == '__main__':
data = sys.stdin.read()
entries = parselog(data)
printentries(entries)