diff -r 5ff1fc726848 -r c6bca38c1cbf eggs/mercurial-1.7.3-py2.6-linux-x86_64.egg/hgext/convert/darcs.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/eggs/mercurial-1.7.3-py2.6-linux-x86_64.egg/hgext/convert/darcs.py	Sat Jan 08 11:20:57 2011 +0530
@@ -0,0 +1,200 @@
+# darcs.py - darcs support for the convert extension
+#
+#  Copyright 2007-2009 Matt Mackall <mpm@selenic.com> and others
+#
+# This software may be used and distributed according to the terms of the
+# GNU General Public License version 2 or any later version.
+
+from common import NoRepo, checktool, commandline, commit, converter_source
+from mercurial.i18n import _
+from mercurial import encoding, util
+import os, shutil, tempfile, re
+
+# The naming drift of ElementTree is fun!
+
+try:
+    from xml.etree.cElementTree import ElementTree, XMLParser
+except ImportError:
+    try:
+        from xml.etree.ElementTree import ElementTree, XMLParser
+    except ImportError:
+        try:
+            from elementtree.cElementTree import ElementTree, XMLParser
+        except ImportError:
+            try:
+                from elementtree.ElementTree import ElementTree, XMLParser
+            except ImportError:
+                ElementTree = None
+
+class darcs_source(converter_source, commandline):
+    def __init__(self, ui, path, rev=None):
+        converter_source.__init__(self, ui, path, rev=rev)
+        commandline.__init__(self, ui, 'darcs')
+
+        # check for _darcs, ElementTree so that we can easily skip
+        # test-convert-darcs if ElementTree is not around
+        if not os.path.exists(os.path.join(path, '_darcs')):
+            raise NoRepo(_("%s does not look like a darcs repository") % path)
+
+        checktool('darcs')
+        version = self.run0('--version').splitlines()[0].strip()
+        if version < '2.1':
+            raise util.Abort(_('darcs version 2.1 or newer needed (found %r)') %
+                             version)
+
+        if ElementTree is None:
+            raise util.Abort(_("Python ElementTree module is not available"))
+
+        self.path = os.path.realpath(path)
+
+        self.lastrev = None
+        self.changes = {}
+        self.parents = {}
+        self.tags = {}
+
+        # Check darcs repository format
+        format = self.format()
+        if format:
+            if format in ('darcs-1.0', 'hashed'):
+                raise NoRepo(_("%s repository format is unsupported, "
+                               "please upgrade") % format)
+        else:
+            self.ui.warn(_('failed to detect repository format!'))
+
+    def before(self):
+        self.tmppath = tempfile.mkdtemp(
+            prefix='convert-' + os.path.basename(self.path) + '-')
+        output, status = self.run('init', repodir=self.tmppath)
+        self.checkexit(status)
+
+        tree = self.xml('changes', xml_output=True, summary=True,
+                        repodir=self.path)
+        tagname = None
+        child = None
+        for elt in tree.findall('patch'):
+            node = elt.get('hash')
+            name = elt.findtext('name', '')
+            if name.startswith('TAG '):
+                tagname = name[4:].strip()
+            elif tagname is not None:
+                self.tags[tagname] = node
+                tagname = None
+            self.changes[node] = elt
+            self.parents[child] = [node]
+            child = node
+        self.parents[child] = []
+
+    def after(self):
+        self.ui.debug('cleaning up %s\n' % self.tmppath)
+        shutil.rmtree(self.tmppath, ignore_errors=True)
+
+    def recode(self, s, encoding=None):
+        if isinstance(s, unicode):
+            # XMLParser returns unicode objects for anything it can't
+            # encode into ASCII. We convert them back to str to get
+            # recode's normal conversion behavior.
+            s = s.encode('latin-1')
+        return super(darcs_source, self).recode(s, encoding)
+
+    def xml(self, cmd, **kwargs):
+        # NOTE: darcs is currently encoding agnostic and will print
+        # patch metadata byte-for-byte, even in the XML changelog.
+        etree = ElementTree()
+        # While we are decoding the XML as latin-1 to be as liberal as
+        # possible, etree will still raise an exception if any
+        # non-printable characters are in the XML changelog.
+        parser = XMLParser(encoding='latin-1')
+        fp = self._run(cmd, **kwargs)
+        etree.parse(fp, parser=parser)
+        self.checkexit(fp.close())
+        return etree.getroot()
+
+    def format(self):
+        output, status = self.run('show', 'repo', no_files=True,
+                                  repodir=self.path)
+        self.checkexit(status)
+        m = re.search(r'^\s*Format:\s*(.*)$', output, re.MULTILINE)
+        if not m:
+            return None
+        return ','.join(sorted(f.strip() for f in m.group(1).split(',')))
+
+    def manifest(self):
+        man = []
+        output, status = self.run('show', 'files', no_directories=True,
+                                  repodir=self.tmppath)
+        self.checkexit(status)
+        for line in output.split('\n'):
+            path = line[2:]
+            if path:
+                man.append(path)
+        return man
+
+    def getheads(self):
+        return self.parents[None]
+
+    def getcommit(self, rev):
+        elt = self.changes[rev]
+        date = util.strdate(elt.get('local_date'), '%a %b %d %H:%M:%S %Z %Y')
+        desc = elt.findtext('name') + '\n' + elt.findtext('comment', '')
+        # etree can return unicode objects for name, comment, and author,
+        # so recode() is used to ensure str objects are emitted.
+        return commit(author=self.recode(elt.get('author')),
+                      date=util.datestr(date),
+                      desc=self.recode(desc).strip(),
+                      parents=self.parents[rev])
+
+    def pull(self, rev):
+        output, status = self.run('pull', self.path, all=True,
+                                  match='hash %s' % rev,
+                                  no_test=True, no_posthook=True,
+                                  external_merge='/bin/false',
+                                  repodir=self.tmppath)
+        if status:
+            if output.find('We have conflicts in') == -1:
+                self.checkexit(status, output)
+            output, status = self.run('revert', all=True, repodir=self.tmppath)
+            self.checkexit(status, output)
+
+    def getchanges(self, rev):
+        copies = {}
+        changes = []
+        man = None
+        for elt in self.changes[rev].find('summary').getchildren():
+            if elt.tag in ('add_directory', 'remove_directory'):
+                continue
+            if elt.tag == 'move':
+                if man is None:
+                    man = self.manifest()
+                source, dest = elt.get('from'), elt.get('to')
+                if source in man:
+                    # File move
+                    changes.append((source, rev))
+                    changes.append((dest, rev))
+                    copies[dest] = source
+                else:
+                    # Directory move, deduce file moves from manifest
+                    source = source + '/'
+                    for f in man:
+                        if not f.startswith(source):
+                            continue
+                        fdest = dest + '/' + f[len(source):]
+                        changes.append((f, rev))
+                        changes.append((fdest, rev))
+                        copies[fdest] = f
+            else:
+                changes.append((elt.text.strip(), rev))
+        self.pull(rev)
+        self.lastrev = rev
+        return sorted(changes), copies
+
+    def getfile(self, name, rev):
+        if rev != self.lastrev:
+            raise util.Abort(_('internal calling inconsistency'))
+        path = os.path.join(self.tmppath, name)
+        data = open(path, 'rb').read()
+        mode = os.lstat(path).st_mode
+        mode = (mode & 0111) and 'x' or ''
+        return data, mode
+
+    def gettags(self):
+        return self.tags