"""

svn-Command based Implementation of a Subversion WorkingCopy Path.

  SvnWCCommandPath  is the main class.

  SvnWC is an alias to this class.

"""

import os, sys, time, re, calendar
from xml.dom import minidom
from xml.parsers.expat import ExpatError
import py
from py.__.path import common
from py.__.path.svn import cache
from py.__.path.svn import svncommon

DEBUG = 0

rex_blame = re.compile(r'\s*(\d+)\s*(\S+) (.*)')

class SvnWCCommandPath(common.FSPathBase):
    """ path implementation offering access/modification to svn working copies.
        It has methods similar to the functions in os.path and similar to the
        commands of the svn client.
    """
    sep = os.sep

    def __new__(cls, wcpath=None, auth=None):
        self = object.__new__(cls)
        if isinstance(wcpath, cls):
            if wcpath.__class__ == cls:
                return wcpath
            wcpath = wcpath.localpath
        if svncommon._check_for_bad_chars(str(wcpath),
                                          svncommon.ALLOWED_CHARS):
            raise ValueError("bad char in wcpath %s" % (wcpath, ))
        self.localpath = py.path.local(wcpath)
        self.auth = auth
        return self

    strpath = property(lambda x: str(x.localpath), None, None, "string path")

    def __eq__(self, other):
        return self.localpath == getattr(other, 'localpath', None)

    def _geturl(self):
        if getattr(self, '_url', None) is None:
            info = self.info()
            self._url = info.url #SvnPath(info.url, info.rev)
        assert isinstance(self._url, str)
        return self._url

    url = property(_geturl, None, None, "url of this WC item")

    def _escape(self, cmd):
        return svncommon._escape_helper(cmd)

    def dump(self, obj):
        """ pickle object into path location"""
        return self.localpath.dump(obj)

    def svnurl(self):
        """ return current SvnPath for this WC-item. """
        info = self.info()
        return py.path.svnurl(info.url)

    def __repr__(self):
        return "svnwc(%r)" % (self.strpath) # , self._url)

    def __str__(self):
        return str(self.localpath)

    def _makeauthoptions(self):
        if self.auth is None:
            return ''
        return self.auth.makecmdoptions()

    def _authsvn(self, cmd, args=None):
        args = args and list(args) or []
        args.append(self._makeauthoptions())
        return self._svn(cmd, *args)
        
    def _svn(self, cmd, *args):
        l = ['svn %s' % cmd]
        args = [self._escape(item) for item in args]
        l.extend(args)
        l.append('"%s"' % self._escape(self.strpath))
        # try fixing the locale because we can't otherwise parse
        string = svncommon.fixlocale() + " ".join(l)
        if DEBUG:
            print "execing", string
        try:
            try:
                key = 'LC_MESSAGES'
                hold = os.environ.get(key)
                os.environ[key] = 'C'
                out = py.process.cmdexec(string)
            finally:
                if hold:
                    os.environ[key] = hold
                else:
                    del os.environ[key]
        except py.process.cmdexec.Error, e:
            strerr = e.err.lower()
            if strerr.find('file not found') != -1: 
                raise py.error.ENOENT(self) 
            if (strerr.find('file exists') != -1 or 
                strerr.find('file already exists') != -1 or
                strerr.find("can't create directory") != -1):
                raise py.error.EEXIST(self)
            raise
        return out

    def switch(self, url):
        """ switch to given URL. """
        self._authsvn('switch', [url])

    def checkout(self, url=None, rev=None):
        """ checkout from url to local wcpath. """
        args = []
        if url is None:
            url = self.url
        if rev is None or rev == -1:
            if (py.std.sys.platform != 'win32' and
                    svncommon._getsvnversion() == '1.3'):
                url += "@HEAD" 
        else:
            if svncommon._getsvnversion() == '1.3':
                url += "@%d" % rev
            else:
                args.append('-r' + str(rev))
        args.append(url)
        self._authsvn('co', args)

    def update(self, rev = 'HEAD'):
        """ update working copy item to given revision. (None -> HEAD). """
        self._authsvn('up', ['-r', rev])

    def write(self, content, mode='wb'):
        """ write content into local filesystem wc. """
        self.localpath.write(content, mode)

    def dirpath(self, *args):
        """ return the directory Path of the current Path. """
        return self.__class__(self.localpath.dirpath(*args), auth=self.auth)

    def _ensuredirs(self):
        parent = self.dirpath()
        if parent.check(dir=0):
            parent._ensuredirs()
        if self.check(dir=0):
            self.mkdir()
        return self

    def ensure(self, *args, **kwargs):
        """ ensure that an args-joined path exists (by default as
            a file). if you specify a keyword argument 'directory=True'
            then the path is forced  to be a directory path.
        """
        try:
            p = self.join(*args)
            if p.check():
                if p.check(versioned=False):
                    p.add()
                return p 
            if kwargs.get('dir', 0):
                return p._ensuredirs()
            parent = p.dirpath()
            parent._ensuredirs()
            p.write("")
            p.add()
            return p
        except:
            error_enhance(sys.exc_info())

    def mkdir(self, *args):
        """ create & return the directory joined with args. """
        if args:
            return self.join(*args).mkdir()
        else:
            self._svn('mkdir')
            return self

    def add(self):
        """ add ourself to svn """
        self._svn('add')

    def remove(self, rec=1, force=1):
        """ remove a file or a directory tree. 'rec'ursive is
            ignored and considered always true (because of
            underlying svn semantics.
        """
        assert rec, "svn cannot remove non-recursively"
        if not self.check(versioned=True):
            # not added to svn (anymore?), just remove
            py.path.local(self).remove()
            return
        flags = []
        if force:
            flags.append('--force')
        self._svn('remove', *flags)

    def copy(self, target):
        """ copy path to target."""
        py.process.cmdexec("svn copy %s %s" %(str(self), str(target)))

    def rename(self, target):
        """ rename this path to target. """
        py.process.cmdexec("svn move --force %s %s" %(str(self), str(target)))

    def lock(self):
        """ set a lock (exclusive) on the resource """
        out = self._authsvn('lock').strip()
        if not out:
            # warning or error, raise exception
            raise Exception(out[4:])
    
    def unlock(self):
        """ unset a previously set lock """
        out = self._authsvn('unlock').strip()
        if out.startswith('svn:'):
            # warning or error, raise exception
            raise Exception(out[4:])

    def cleanup(self):
        """ remove any locks from the resource """
        # XXX should be fixed properly!!!
        try:
            self.unlock()
        except:
            pass

    def status(self, updates=0, rec=0, externals=0):
        """ return (collective) Status object for this file. """
        # http://svnbook.red-bean.com/book.html#svn-ch-3-sect-4.3.1
        #             2201     2192        jum   test
        # XXX
        if externals:
            raise ValueError("XXX cannot perform status() "
                             "on external items yet")
        else:
            #1.2 supports: externals = '--ignore-externals'
            externals = ''
        if rec:
            rec= ''
        else:
            rec = '--non-recursive'

        # XXX does not work on all subversion versions
        #if not externals: 
        #    externals = '--ignore-externals' 

        if updates:
            updates = '-u'
        else:
            updates = ''

        try:
            cmd = 'status -v --xml --no-ignore %s %s %s' % (
                    updates, rec, externals)
            out = self._authsvn(cmd)
        except py.process.cmdexec.Error:
            cmd = 'status -v --no-ignore %s %s %s' % (
                    updates, rec, externals)
            out = self._authsvn(cmd)
            rootstatus = WCStatus(self).fromstring(out, self)
        else:
            rootstatus = XMLWCStatus(self).fromstring(out, self)
        return rootstatus

    def diff(self, rev=None):
        """ return a diff of the current path against revision rev (defaulting
            to the last one).
        """
        args = []
        if rev is not None:
            args.append("-r %d" % rev)
        out = self._authsvn('diff', args)
        return out

    def blame(self):
        """ return a list of tuples of three elements:
(revision, commiter, line)"""
        out = self._svn('blame')
        result = []
        blamelines = out.splitlines()
        reallines = py.path.svnurl(self.url).readlines()
        for i, (blameline, line) in py.builtin.enumerate(
                zip(blamelines, reallines)):
            m = rex_blame.match(blameline)
            if not m:
                raise ValueError("output line %r of svn blame does not match "
                                 "expected format" % (line, ))
            rev, name, _ = m.groups()
            result.append((int(rev), name, line))
        return result

    _rex_commit = re.compile(r'.*Committed revision (\d+)\.$', re.DOTALL)
    def commit(self, msg='', rec=1):
        """ commit with support for non-recursive commits """
        from py.__.path.svn import cache
        # XXX i guess escaping should be done better here?!?
        cmd = 'commit -m "%s" --force-log' % (msg.replace('"', '\\"'),)
        if not rec:
            cmd += ' -N'
        out = self._authsvn(cmd)
        try:
            del cache.info[self]
        except KeyError:
            pass
        if out: 
            m = self._rex_commit.match(out)
            return int(m.group(1))

    def propset(self, name, value, *args):
        """ set property name to value on this path. """
        d = py.path.local.mkdtemp() 
        try: 
            p = d.join('value') 
            p.write(value) 
            self._svn('propset', name, '--file', str(p), *args)
        finally: 
            d.remove() 

    def propget(self, name):
        """ get property name on this path. """
        res = self._svn('propget', name)
        return res[:-1] # strip trailing newline

    def propdel(self, name):
        """ delete property name on this path. """
        res = self._svn('propdel', name)
        return res[:-1] # strip trailing newline

    def proplist(self, rec=0):
        """ return a mapping of property names to property values.
If rec is True, then return a dictionary mapping sub-paths to such mappings.
"""
        if rec:
            res = self._svn('proplist -R')
            return make_recursive_propdict(self, res)
        else:
            res = self._svn('proplist')
            lines = res.split('\n')
            lines = map(str.strip, lines[1:])
            return svncommon.PropListDict(self, lines)

    def revert(self, rec=0):
        """ revert the local changes of this path. if rec is True, do so
recursively. """
        if rec:
            result = self._svn('revert -R')
        else:
            result = self._svn('revert')
        return result

    def new(self, **kw):
        """ create a modified version of this path. A 'rev' argument
            indicates a new revision.
            the following keyword arguments modify various path parts:

              http://host.com/repo/path/file.ext
              |-----------------------|          dirname
                                        |------| basename
                                        |--|     purebasename
                                            |--| ext
        """
        if kw:
            localpath = self.localpath.new(**kw)
        else:
            localpath = self.localpath
        return self.__class__(localpath, auth=self.auth)

    def join(self, *args, **kwargs):
        """ return a new Path (with the same revision) which is composed
            of the self Path followed by 'args' path components.
        """
        if not args:
            return self
        localpath = self.localpath.join(*args, **kwargs)
        return self.__class__(localpath, auth=self.auth)

    def info(self, usecache=1):
        """ return an Info structure with svn-provided information. """
        info = usecache and cache.info.get(self)
        if not info:
            try:
                output = self._svn('info')
            except py.process.cmdexec.Error, e:
                if e.err.find('Path is not a working copy directory') != -1:
                    raise py.error.ENOENT(self, e.err)
                raise
            # XXX SVN 1.3 has output on stderr instead of stdout (while it does
            # return 0!), so a bit nasty, but we assume no output is output
            # to stderr...
            if (output.strip() == '' or 
                    output.lower().find('not a versioned resource') != -1):
                raise py.error.ENOENT(self, output)
            info = InfoSvnWCCommand(output)

            # Can't reliably compare on Windows without access to win32api
            if py.std.sys.platform != 'win32': 
                if info.path != self.localpath: 
                    raise py.error.ENOENT(self, "not a versioned resource:" + 
                            " %s != %s" % (info.path, self.localpath)) 
            cache.info[self] = info
        self.rev = info.rev
        return info

    def listdir(self, fil=None, sort=None):
        """ return a sequence of Paths.

        listdir will return either a tuple or a list of paths
        depending on implementation choices.
        """
        if isinstance(fil, str):
            fil = common.fnmatch(fil)
        # XXX unify argument naming with LocalPath.listdir
        def notsvn(path):
            return path.basename != '.svn' 

        paths = []
        for localpath in self.localpath.listdir(notsvn):
            p = self.__class__(localpath, auth=self.auth)
            paths.append(p)

        if fil or sort:
            paths = filter(fil, paths)
            paths = isinstance(paths, list) and paths or list(paths)
            if callable(sort):
                paths.sort(sort)
            elif sort:
                paths.sort()
        return paths

    def open(self, mode='r'):
        """ return an opened file with the given mode. """
        return open(self.strpath, mode)

    def _getbyspec(self, spec):
        return self.localpath._getbyspec(spec)

    class Checkers(py.path.local.Checkers):
        def __init__(self, path):
            self.svnwcpath = path
            self.path = path.localpath
        def versioned(self):
            try:
                s = self.svnwcpath.info()
            except (py.error.ENOENT, py.error.EEXIST): 
                return False 
            except py.process.cmdexec.Error, e:
                if e.err.find('is not a working copy')!=-1:
                    return False
                raise
            else:
                return True 

    def log(self, rev_start=None, rev_end=1, verbose=False):
        """ return a list of LogEntry instances for this path.
rev_start is the starting revision (defaulting to the first one).
rev_end is the last revision (defaulting to HEAD).
if verbose is True, then the LogEntry instances also know which files changed.
"""
        from py.__.path.svn.urlcommand import _Head, LogEntry
        assert self.check()   # make it simpler for the pipe
        rev_start = rev_start is None and _Head or rev_start
        rev_end = rev_end is None and _Head or rev_end

        if rev_start is _Head and rev_end == 1:
                rev_opt = ""
        else:
            rev_opt = "-r %s:%s" % (rev_start, rev_end)
        verbose_opt = verbose and "-v" or ""
        locale_env = svncommon.fixlocale()
        # some blather on stderr
        auth_opt = self._makeauthoptions()
        stdin, stdout, stderr  = os.popen3(locale_env +
                                           'svn log --xml %s %s %s "%s"' % (
                                            rev_opt, verbose_opt, auth_opt,
                                            self.strpath))
        from xml.dom import minidom
        from xml.parsers.expat import ExpatError
        try:
            tree = minidom.parse(stdout)
        except ExpatError:
            # XXX not entirely sure about this exception... shouldn't it be
            # some py.error.* something?
            raise ValueError('no such revision')
        result = []
        for logentry in filter(None, tree.firstChild.childNodes):
            if logentry.nodeType == logentry.ELEMENT_NODE:
                result.append(LogEntry(logentry))
        return result

    def size(self):
        """ Return the size of the file content of the Path. """
        return self.info().size

    def mtime(self):
        """ Return the last modification time of the file. """
        return self.info().mtime

    def __hash__(self):
        return hash((self.strpath, self.__class__, self.auth))


class WCStatus:
    attrnames = ('modified','added', 'conflict', 'unchanged', 'external',
                'deleted', 'prop_modified', 'unknown', 'update_available',
                'incomplete', 'kindmismatch', 'ignored', 'locked', 'replaced'
                )

    def __init__(self, wcpath, rev=None, modrev=None, author=None):
        self.wcpath = wcpath
        self.rev = rev
        self.modrev = modrev
        self.author = author

        for name in self.attrnames:
            setattr(self, name, [])

    def allpath(self, sort=True, **kw):
        d = {}
        for name in self.attrnames:
            if name not in kw or kw[name]:
                for path in getattr(self, name):
                    d[path] = 1
        l = d.keys()
        if sort:
            l.sort()
        return l

    # XXX a bit scary to assume there's always 2 spaces between username and
    # path, however with win32 allowing spaces in user names there doesn't
    # seem to be a more solid approach :(
    _rex_status = re.compile(r'\s+(\d+|-)\s+(\S+)\s+(.+?)\s{2,}(.*)')

    def fromstring(data, rootwcpath, rev=None, modrev=None, author=None):
        """ return a new WCStatus object from data 's'
        """
        rootstatus = WCStatus(rootwcpath, rev, modrev, author)
        update_rev = None
        for line in data.split('\n'):
            if not line.strip():
                continue
            #print "processing %r" % line
            flags, rest = line[:8], line[8:]
            # first column
            c0,c1,c2,c3,c4,c5,x6,c7 = flags
            #if '*' in line:
            #    print "flags", repr(flags), "rest", repr(rest)

            if c0 in '?XI':
                fn = line.split(None, 1)[1]
                if c0 == '?':
                    wcpath = rootwcpath.join(fn, abs=1)
                    rootstatus.unknown.append(wcpath)
                elif c0 == 'X':
                    wcpath = rootwcpath.__class__(
                        rootwcpath.localpath.join(fn, abs=1),
                        auth=rootwcpath.auth)
                    rootstatus.external.append(wcpath)
                elif c0 == 'I':
                    wcpath = rootwcpath.join(fn, abs=1)
                    rootstatus.ignored.append(wcpath)

                continue

            #elif c0 in '~!' or c4 == 'S':
            #    raise NotImplementedError("received flag %r" % c0)

            m = WCStatus._rex_status.match(rest)
            if not m:
                if c7 == '*':
                    fn = rest.strip()
                    wcpath = rootwcpath.join(fn, abs=1)
                    rootstatus.update_available.append(wcpath)
                    continue
                if line.lower().find('against revision:')!=-1:
                    update_rev = int(rest.split(':')[1].strip())
                    continue
                if line.lower().find('status on external') > -1:
                    # XXX not sure what to do here... perhaps we want to
                    # store some state instead of just continuing, as right
                    # now it makes the top-level external get added twice
                    # (once as external, once as 'normal' unchanged item)
                    # because of the way SVN presents external items
                    continue
                # keep trying
                raise ValueError, "could not parse line %r" % line
            else:
                rev, modrev, author, fn = m.groups()
            wcpath = rootwcpath.join(fn, abs=1)
            #assert wcpath.check()
            if c0 == 'M':
                assert wcpath.check(file=1), "didn't expect a directory with changed content here"
                rootstatus.modified.append(wcpath)
            elif c0 == 'A' or c3 == '+' :
                rootstatus.added.append(wcpath)
            elif c0 == 'D':
                rootstatus.deleted.append(wcpath)
            elif c0 == 'C':
                rootstatus.conflict.append(wcpath)
            elif c0 == '~':
                rootstatus.kindmismatch.append(wcpath)
            elif c0 == '!':
                rootstatus.incomplete.append(wcpath)
            elif c0 == 'R':
                rootstatus.replaced.append(wcpath)
            elif not c0.strip():
                rootstatus.unchanged.append(wcpath)
            else:
                raise NotImplementedError("received flag %r" % c0)

            if c1 == 'M':
                rootstatus.prop_modified.append(wcpath)
            # XXX do we cover all client versions here?
            if c2 == 'L' or c5 == 'K':
                rootstatus.locked.append(wcpath)
            if c7 == '*':
                rootstatus.update_available.append(wcpath)

            if wcpath == rootwcpath:
                rootstatus.rev = rev
                rootstatus.modrev = modrev
                rootstatus.author = author
                if update_rev:
                    rootstatus.update_rev = update_rev
                continue
        return rootstatus
    fromstring = staticmethod(fromstring)

class XMLWCStatus(WCStatus):
    def fromstring(data, rootwcpath, rev=None, modrev=None, author=None):
        """ parse 'data' (XML string as outputted by svn st) into a status obj
        """
        # XXX for externals, the path is shown twice: once
        # with external information, and once with full info as if
        # the item was a normal non-external... the current way of
        # dealing with this issue is by ignoring it - this does make
        # externals appear as external items as well as 'normal',
        # unchanged ones in the status object so this is far from ideal
        rootstatus = WCStatus(rootwcpath, rev, modrev, author)
        update_rev = None
        try:
            doc = minidom.parseString(data)
        except ExpatError, e:
            raise ValueError(str(e))
        urevels = doc.getElementsByTagName('against')
        if urevels:
            rootstatus.update_rev = urevels[-1].getAttribute('revision')
        for entryel in doc.getElementsByTagName('entry'):
            path = entryel.getAttribute('path')
            statusel = entryel.getElementsByTagName('wc-status')[0]
            itemstatus = statusel.getAttribute('item')

            if itemstatus == 'unversioned':
                wcpath = rootwcpath.join(path, abs=1)
                rootstatus.unknown.append(wcpath)
                continue
            elif itemstatus == 'external':
                wcpath = rootwcpath.__class__(
                    rootwcpath.localpath.join(path, abs=1),
                    auth=rootwcpath.auth)
                rootstatus.external.append(wcpath)
                continue
            elif itemstatus == 'ignored':
                wcpath = rootwcpath.join(path, abs=1)
                rootstatus.ignored.append(wcpath)
                continue

            rev = statusel.getAttribute('revision')
            if itemstatus == 'added' or itemstatus == 'none':
                rev = '0'
                modrev = '?'
                author = '?'
                date = ''
            else:
                #print entryel.toxml()
                commitel = entryel.getElementsByTagName('commit')[0]
                if commitel:
                    modrev = commitel.getAttribute('revision')
                    author = ''
                    for c in commitel.getElementsByTagName('author')[0]\
                            .childNodes:
                        author += c.nodeValue
                    date = ''
                    for c in commitel.getElementsByTagName('date')[0]\
                            .childNodes:
                        date += c.nodeValue

            wcpath = rootwcpath.join(path, abs=1)

            assert itemstatus != 'modified' or wcpath.check(file=1), (
                'did\'t expect a directory with changed content here')

            itemattrname = {
                'normal': 'unchanged',
                'unversioned': 'unknown',
                'conflicted': 'conflict',
                'none': 'added',
            }.get(itemstatus, itemstatus)

            attr = getattr(rootstatus, itemattrname)
            attr.append(wcpath)

            propsstatus = statusel.getAttribute('props')
            if propsstatus not in ('none', 'normal'):
                rootstatus.prop_modified.append(wcpath)

            if wcpath == rootwcpath:
                rootstatus.rev = rev
                rootstatus.modrev = modrev
                rootstatus.author = author
                rootstatus.date = date

            # handle repos-status element (remote info)
            rstatusels = entryel.getElementsByTagName('repos-status')
            if rstatusels:
                rstatusel = rstatusels[0]
                ritemstatus = rstatusel.getAttribute('item')
                if ritemstatus in ('added', 'modified'):
                    rootstatus.update_available.append(wcpath)

            lockels = entryel.getElementsByTagName('lock')
            if len(lockels):
                rootstatus.locked.append(wcpath)

        return rootstatus
    fromstring = staticmethod(fromstring)

class InfoSvnWCCommand:
    def __init__(self, output):
        # Path: test
        # URL: http://codespeak.net/svn/std.path/trunk/dist/std.path/test
        # Repository UUID: fd0d7bf2-dfb6-0310-8d31-b7ecfe96aada
        # Revision: 2151
        # Node Kind: directory
        # Schedule: normal
        # Last Changed Author: hpk
        # Last Changed Rev: 2100
        # Last Changed Date: 2003-10-27 20:43:14 +0100 (Mon, 27 Oct 2003)
        # Properties Last Updated: 2003-11-03 14:47:48 +0100 (Mon, 03 Nov 2003)

        d = {}
        for line in output.split('\n'):
            if not line.strip():
                continue
            key, value = line.split(':', 1)
            key = key.lower().replace(' ', '')
            value = value.strip()
            d[key] = value
        try:
            self.url = d['url']
        except KeyError:
            raise  ValueError, "Not a versioned resource"
            #raise ValueError, "Not a versioned resource %r" % path
        self.kind = d['nodekind'] == 'directory' and 'dir' or d['nodekind']
        self.rev = int(d['revision'])
        self.path = py.path.local(d['path'])
        self.size = self.path.size()
        if 'lastchangedrev' in d:
            self.created_rev = int(d['lastchangedrev'])
        if 'lastchangedauthor' in d:
            self.last_author = d['lastchangedauthor']
        if 'lastchangeddate' in d:
            self.mtime = parse_wcinfotime(d['lastchangeddate'])
            self.time = self.mtime * 1000000

    def __eq__(self, other):
        return self.__dict__ == other.__dict__

def parse_wcinfotime(timestr):
    """ Returns seconds since epoch, UTC. """
    # example: 2003-10-27 20:43:14 +0100 (Mon, 27 Oct 2003)
    m = re.match(r'(\d+-\d+-\d+ \d+:\d+:\d+) ([+-]\d+) .*', timestr)
    if not m:
        raise ValueError, "timestring %r does not match" % timestr
    timestr, timezone = m.groups()
    # do not handle timezone specially, return value should be UTC
    parsedtime = time.strptime(timestr, "%Y-%m-%d %H:%M:%S")
    return calendar.timegm(parsedtime)

def make_recursive_propdict(wcroot,
                            output,
                            rex = re.compile("Properties on '(.*)':")):
    """ Return a dictionary of path->PropListDict mappings. """
    lines = filter(None, output.split('\n'))
    pdict = {}
    while lines:
        line = lines.pop(0)
        m = rex.match(line)
        if not m:
            raise ValueError, "could not parse propget-line: %r" % line
        path = m.groups()[0]
        wcpath = wcroot.join(path, abs=1)
        propnames = []
        while lines and lines[0].startswith('  '):
            propname = lines.pop(0).strip()
            propnames.append(propname)
        assert propnames, "must have found properties!"
        pdict[wcpath] = svncommon.PropListDict(wcpath, propnames)
    return pdict

def error_enhance((cls, error, tb)):
    raise cls, error, tb