Sun Feb 5 17:25:01 UTC 2012

1 files changed, 0 insertions, 2370 deletions

diff --git a/extra/subversion/svnmerge.py b/extra/subversion/svnmerge.py
deleted file mode 100644
index d8931648f..000000000
--- a/extra/subversion/svnmerge.py
+++ /dev/null
@@ -1,2370 +0,0 @@
-#!/usr/bin/env python2
-# -*- coding: utf-8 -*-
-# Copyright (c) 2005, Giovanni Bajo
-# Copyright (c) 2004-2005, Awarix, Inc.
-# All rights reserved.
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
-#
-# Author: Archie Cobbs <archie at awarix dot com>
-# Rewritten in Python by: Giovanni Bajo <rasky at develer dot com>
-#
-# Acknowledgments:
-#   John Belmonte <john at neggie dot net> - metadata and usability
-#     improvements
-#   Blair Zajac <blair at orcaware dot com> - random improvements
-#   Raman Gupta <rocketraman at fastmail dot fm> - bidirectional and transitive
-#     merging support
-#   Dustin J. Mitchell <dustin at zmanda dot com> - support for multiple
-#     location identifier formats
-#
-# $HeadURL$
-# $LastChangedDate$
-# $LastChangedBy$
-# $LastChangedRevision$
-#
-# Requisites:
-# svnmerge.py has been tested with all SVN major versions since 1.1 (both
-# client and server). It is unknown if it works with previous versions.
-#
-# Differences from svnmerge.sh:
-# - More portable: tested as working in FreeBSD and OS/2.
-# - Add double-verbose mode, which shows every svn command executed (-v -v).
-# - "svnmerge avail" now only shows commits in source, not also commits in
-#   other parts of the repository.
-# - Add "svnmerge block" to flag some revisions as blocked, so that
-#   they will not show up anymore in the available list.  Added also
-#   the complementary "svnmerge unblock".
-# - "svnmerge avail" has grown two new options:
-#   -B to display a list of the blocked revisions
-#   -A to display both the blocked and the available revisions.
-# - Improved generated commit message to make it machine parsable even when
-#   merging commits which are themselves merges.
-# - Add --force option to skip working copy check
-# - Add --record-only option to "svnmerge merge" to avoid performing
-#   an actual merge, yet record that a merge happened.
-# - Can use a variety of location-identifier formats
-#
-# TODO:
-#  - Add "svnmerge avail -R": show logs in reverse order
-#
-# Information for Hackers:
-#
-# Identifiers for branches:
-#  A branch is identified in three ways within this source:
-#  - as a working copy (variable name usually includes 'dir')
-#  - as a fully qualified URL
-#  - as a path identifier (an opaque string indicating a particular path
-#    in a particular repository; variable name includes 'pathid')
-#  A "target" is generally user-specified, and may be a working copy or
-#  a URL.
-
-import sys, os, getopt, re, types, tempfile, time, locale
-from bisect import bisect
-from xml.dom import pulldom
-
-NAME = "svnmerge"
-if not hasattr(sys, "version_info") or sys.version_info < (2, 0):
-    error("requires Python 2.0 or newer")
-
-# Set up the separator used to separate individual log messages from
-# each revision merged into the target location.  Also, create a
-# regular expression that will find this same separator in already
-# committed log messages, so that the separator used for this run of
-# svnmerge.py will have one more LOG_SEPARATOR appended to the longest
-# separator found in all the commits.
-LOG_SEPARATOR = 8 * '.'
-LOG_SEPARATOR_RE = re.compile('^((%s)+)' % re.escape(LOG_SEPARATOR),
-                              re.MULTILINE)
-
-# Each line of the embedded log messages will be prefixed by LOG_LINE_PREFIX.
-LOG_LINE_PREFIX = 2 * ' '
-
-# Set python to the default locale as per environment settings, same as svn
-# TODO we should really parse config and if log-encoding is specified, set
-# the locale to match that encoding
-locale.setlocale(locale.LC_ALL, '')
-
-# We want the svn output (such as svn info) to be non-localized
-# Using LC_MESSAGES should not affect localized output of svn log, for example
-if os.environ.has_key("LC_ALL"):
-    del os.environ["LC_ALL"]
-os.environ["LC_MESSAGES"] = "C"
-
-###############################################################################
-# Support for older Python versions
-###############################################################################
-
-# True/False constants are Python 2.2+
-try:
-    True, False
-except NameError:
-    True, False = 1, 0
-
-def lstrip(s, ch):
-    """Replacement for str.lstrip (support for arbitrary chars to strip was
-    added in Python 2.2.2)."""
-    i = 0
-    try:
-        while s[i] == ch:
-            i = i+1
-        return s[i:]
-    except IndexError:
-        return ""
-
-def rstrip(s, ch):
-    """Replacement for str.rstrip (support for arbitrary chars to strip was
-    added in Python 2.2.2)."""
-    try:
-        if s[-1] != ch:
-            return s
-        i = -2
-        while s[i] == ch:
-            i = i-1
-        return s[:i+1]
-    except IndexError:
-        return ""
-
-def strip(s, ch):
-    """Replacement for str.strip (support for arbitrary chars to strip was
-    added in Python 2.2.2)."""
-    return lstrip(rstrip(s, ch), ch)
-
-def rsplit(s, sep, maxsplits=0):
-    """Like str.rsplit, which is Python 2.4+ only."""
-    L = s.split(sep)
-    if not 0 < maxsplits <= len(L):
-        return L
-    return [sep.join(L[0:-maxsplits])] + L[-maxsplits:]
-
-###############################################################################
-
-def kwextract(s):
-    """Extract info from a svn keyword string."""
-    try:
-        return strip(s, "$").strip().split(": ")[1]
-    except IndexError:
-        return "<unknown>"
-
-__revision__ = kwextract('$Rev$')
-__date__ = kwextract('$Date$')
-
-# Additional options, not (yet?) mapped to command line flags
-default_opts = {
-    "svn": "svn",
-    "prop": NAME + "-integrated",
-    "block-prop": NAME + "-blocked",
-    "commit-verbose": True,
-    "verbose": 0,
-}
-logs = {}
-
-def console_width():
-    """Get the width of the console screen (if any)."""
-    try:
-        return int(os.environ["COLUMNS"])
-    except (KeyError, ValueError):
-        pass
-
-    try:
-        # Call the Windows API (requires ctypes library)
-        from ctypes import windll, create_string_buffer
-        h = windll.kernel32.GetStdHandle(-11)
-        csbi = create_string_buffer(22)
-        res = windll.kernel32.GetConsoleScreenBufferInfo(h, csbi)
-        if res:
-            import struct
-            (bufx, bufy,
-             curx, cury, wattr,
-             left, top, right, bottom,
-             maxx, maxy) = struct.unpack("hhhhHhhhhhh", csbi.raw)
-            return right - left + 1
-    except ImportError:
-        pass
-
-    # Parse the output of stty -a
-    if os.isatty(1):
-        out = os.popen("stty -a").read()
-        m = re.search(r"columns (\d+);", out)
-        if m:
-            return int(m.group(1))
-
-    # sensible default
-    return 80
-
-def error(s):
-    """Subroutine to output an error and bail."""
-    print >> sys.stderr, "%s: %s" % (NAME, s)
-    sys.exit(1)
-
-def report(s):
-    """Subroutine to output progress message, unless in quiet mode."""
-    if opts["verbose"]:
-        print "%s: %s" % (NAME, s)
-
-def prefix_lines(prefix, lines):
-    """Given a string representing one or more lines of text, insert the
-    specified prefix at the beginning of each line, and return the result.
-    The input must be terminated by a newline."""
-    assert lines[-1] == "\n"
-    return prefix + lines[:-1].replace("\n", "\n"+prefix) + "\n"
-
-def recode_stdout_to_file(s):
-    if locale.getdefaultlocale()[1] is None or not hasattr(sys.stdout, "encoding") \
-            or sys.stdout.encoding is None:
-        return s
-    u = s.decode(sys.stdout.encoding)
-    return u.encode(locale.getdefaultlocale()[1])
-
-class LaunchError(Exception):
-    """Signal a failure in execution of an external command. Parameters are the
-    exit code of the process, the original command line, and the output of the
-    command."""
-
-try:
-    """Launch a sub-process. Return its output (both stdout and stderr),
-    optionally split by lines (if split_lines is True). Raise a LaunchError
-    exception if the exit code of the process is non-zero (failure).
-
-    This function has two implementations, one based on subprocess (preferred),
-    and one based on popen (for compatibility).
-    """
-    import subprocess
-    import shlex
-
-    def launch(cmd, split_lines=True):
-        # Requiring python 2.4 or higher, on some platforms we get
-        # much faster performance from the subprocess module (where python
-        # doesn't try to close an exhorbitant number of file descriptors)
-        stdout = ""
-        stderr = ""
-        try:
-            if os.name == 'nt':
-                p = subprocess.Popen(cmd, stdout=subprocess.PIPE, \
-                                     close_fds=False, stderr=subprocess.PIPE)
-            else:
-                # Use shlex to break up the parameters intelligently,
-                # respecting quotes. shlex can't handle unicode.
-                args = shlex.split(cmd.encode('ascii'))
-                p = subprocess.Popen(args, stdout=subprocess.PIPE, \
-                                     close_fds=False, stderr=subprocess.PIPE)
-            stdoutAndErr = p.communicate()
-            stdout = stdoutAndErr[0]
-            stderr = stdoutAndErr[1]
-        except OSError, inst:
-            # Using 1 as failure code; should get actual number somehow? For
-            # examples see svnmerge_test.py's TestCase_launch.test_failure and
-            # TestCase_launch.test_failurecode.
-            raise LaunchError(1, cmd, stdout + " " + stderr + ": " + str(inst))
-
-        if p.returncode == 0:
-            if split_lines:
-                # Setting keepends=True for compatibility with previous logic
-                # (where file.readlines() preserves newlines)
-                return stdout.splitlines(True)
-            else:
-                return stdout
-        else:
-            raise LaunchError(p.returncode, cmd, stdout + stderr)
-except ImportError:
-    # support versions of python before 2.4 (slower on some systems)
-    def launch(cmd, split_lines=True):
-        if os.name not in ['nt', 'os2']:
-            import popen2
-            p = popen2.Popen4(cmd)
-            p.tochild.close()
-            if split_lines:
-                out = p.fromchild.readlines()
-            else:
-                out = p.fromchild.read()
-            ret = p.wait()
-            if ret == 0:
-                ret = None
-            else:
-                ret >>= 8
-        else:
-            i,k = os.popen4(cmd)
-            i.close()
-            if split_lines:
-                out = k.readlines()
-            else:
-                out = k.read()
-            ret = k.close()
-
-        if ret is None:
-            return out
-        raise LaunchError(ret, cmd, out)
-
-def launchsvn(s, show=False, pretend=False, **kwargs):
-    """Launch SVN and grab its output."""
-    username = password = configdir = ""
-    if opts.get("username", None):
-        username = "--username=" + opts["username"]
-    if opts.get("password", None):
-        password = "--password=" + opts["password"]
-    if opts.get("config-dir", None):
-        configdir = "--config-dir=" + opts["config-dir"]
-    cmd = ' '.join(filter(None, [opts["svn"], "--non-interactive",
-                                 username, password, configdir, s]))
-    if show or opts["verbose"] >= 2:
-        print cmd
-    if pretend:
-        return None
-    return launch(cmd, **kwargs)
-
-def svn_command(s):
-    """Do (or pretend to do) an SVN command."""
-    out = launchsvn(s, show=opts["show-changes"] or opts["dry-run"],
-                    pretend=opts["dry-run"],
-                    split_lines=False)
-    if not opts["dry-run"]:
-        print out
-
-def check_dir_clean(dir):
-    """Check the current status of dir for local mods."""
-    if opts["force"]:
-        report('skipping status check because of --force')
-        return
-    report('checking status of "%s"' % dir)
-
-    # Checking with -q does not show unversioned files or external
-    # directories.  Though it displays a debug message for external
-    # directories, after a blank line.  So, practically, the first line
-    # matters: if it's non-empty there is a modification.
-    out = launchsvn("status -q %s" % dir)
-    if out and out[0].strip():
-        error('"%s" has local modifications; it must be clean' % dir)
-
-class PathIdentifier:
-    """Abstraction for a path identifier, so that we can start talking
-    about it before we know the form that it takes in the properties (its
-    external_form).  Objects are referenced in the class variable 'locobjs',
-    keyed by all known forms."""
-    
-    # a map of UUID (or None) to repository root URL.
-    repo_hints = {}
-
-    # a map from any known string form to the corresponding PathIdentifier
-    locobjs = {}
-
-    def __init__(self, repo_relative_path, uuid=None, url=None, external_form=None):
-        self.repo_relative_path = repo_relative_path
-        self.uuid = uuid
-        self.url = url
-        self.external_form = external_form
-
-    def __repr__(self):
-        return "<PathIdentifier " + ', '.join('%s=%r' % i for i in self.__dict__.items()) + '>'
-
-    def __str__(self):
-        """Return a printable string representation"""
-        if self.external_form:
-            return self.external_form
-        if self.url:
-            return self.format('url')
-        if self.uuid:
-            return self.format('uuid')
-        return self.format('path')
-
-    def from_pathid(pathid_str):
-        """convert pathid_str to a PathIdentifier"""
-        if not PathIdentifier.locobjs.has_key(pathid_str):
-            if is_url(pathid_str):
-                # we can determine every form; PathIdentifier.hint knows how to do that
-                PathIdentifier.hint(pathid_str)
-            elif pathid_str[:7] == 'uuid://':
-                mo = re.match('uuid://([^/]*)(.*)', pathid_str)
-                if not mo:
-                    error("Invalid path identifier '%s'" % pathid_str)
-                uuid, repo_relative_path = mo.groups()
-                pathid = PathIdentifier(repo_relative_path, uuid=uuid)
-                # we can cache this by uuid:// pathid and by repo-relative path
-                PathIdentifier.locobjs[pathid_str] = PathIdentifier.locobjs[repo_relative_path] = pathid
-            elif pathid_str and pathid_str[0] == '/':
-                # strip any trailing slashes
-                pathid_str = pathid_str.rstrip('/')
-                pathid = PathIdentifier(repo_relative_path=pathid_str)
-                # we can only cache this by repo-relative path
-                PathIdentifier.locobjs[pathid_str] = pathid
-            else:
-                error("Invalid path identifier '%s'" % pathid_str)
-        return PathIdentifier.locobjs[pathid_str]
-    from_pathid = staticmethod(from_pathid)
-
-    def from_target(target):
-        """Convert a target (either a working copy path or an URL) into a
-        path identifier."""
-        # prime the cache first if we don't know about this target yet
-        if not PathIdentifier.locobjs.has_key(target):
-            PathIdentifier.hint(target)
-
-        try:
-            return PathIdentifier.locobjs[target]
-        except KeyError:
-            error("Could not recognize path identifier '%s'" % target)
-    from_target = staticmethod(from_target)
-
-    def hint(target):
-        """Cache some information about target, as it may be referenced by
-        repo-relative path in subversion properties; the cache can help to
-        expand such a relative path to a full path identifier."""
-        if PathIdentifier.locobjs.has_key(target): return
-        if not is_url(target) and not is_wc(target): return
-
-        url = target_to_url(target)
-
-        root = get_repo_root(url)
-        assert root[-1] != "/"
-        assert url[:len(root)] == root, "url=%r, root=%r" % (url, root)
-        repo_relative_path = url[len(root):]
-
-        try:
-            uuid = get_svninfo(target)['Repository UUID']
-            uuid_pathid = 'uuid://%s%s' % (uuid, repo_relative_path)
-        except KeyError:
-            uuid = None
-            uuid_pathid = None
-
-        locobj = PathIdentifier.locobjs.get(url) or \
-                 (uuid_pathid and PathIdentifier.locobjs.get(uuid_pathid))
-        if not locobj:
-            locobj = PathIdentifier(repo_relative_path, uuid=uuid, url=url)
-
-        PathIdentifier.repo_hints[uuid] = root # (uuid may be None)
-
-        PathIdentifier.locobjs[target] = locobj
-        PathIdentifier.locobjs[url] = locobj
-        if uuid_pathid:
-            PathIdentifier.locobjs[uuid_pathid] = locobj
-        if not PathIdentifier.locobjs.has_key(repo_relative_path):
-            PathIdentifier.locobjs[repo_relative_path] = locobj
-    hint = staticmethod(hint)
-
-    def format(self, fmt):
-        if fmt == 'path':
-            return self.repo_relative_path
-        elif fmt == 'uuid':
-            return "uuid://%s%s" % (self.uuid, self.repo_relative_path)
-        elif fmt == 'url':
-            return self.url
-        else:
-            error("Unkonwn path type '%s'" % fmt)
-
-    def match_substring(self, str):
-        """Test whether str is a substring of any representation of this
-        PathIdentifier."""
-        if self.repo_relative_path.find(str) >= 0:
-            return True
-
-        if self.uuid:
-            if ("uuid://%s%s" % (self.uuid, self.repo_relative_path)).find(str) >= 0:
-                return True
-
-        if self.url:
-            if (self.url + self.repo_relative_path).find(str) >= 0:
-                return True
-
-        return False
-
-    def get_url(self):
-        """Convert a pathid into a URL.  If this is not possible, error out."""
-        if self.url:
-            return self.url
-        # if we have a uuid and happen to know the URL for it, use that
-        elif self.uuid and PathIdentifier.repo_hints.has_key(self.uuid):
-            self.url = PathIdentifier.repo_hints[self.uuid] + self.repo_relative_path
-            PathIdentifier.locobjs[self.url] = self
-            return self.url
-        # if we've only seen one rep, use that (a guess, but an educated one)
-        elif not self.uuid and len(PathIdentifier.repo_hints) == 1:
-            uuid, root = PathIdentifier.repo_hints.items()[0]
-            if uuid:
-                self.uuid = uuid
-                PathIdentifier.locobjs['uuid://%s%s' % (uuid, self.repo_relative_path)] = self
-            self.url = root + self.repo_relative_path
-            PathIdentifier.locobjs[self.url] = self
-            report("Guessing that '%s' refers to '%s'" % (self, self.url))
-            return self.url
-        else:
-            error("Cannot determine URL for '%s'; " % self +
-                  "Explicit source argument (-S/--source) required.\n")
-
-class RevisionLog:
-    """
-    A log of the revisions which affected a given URL between two
-    revisions.
-    """
-
-    def __init__(self, url, begin, end, find_propchanges=False):
-        """
-        Create a new RevisionLog object, which stores, in self.revs, a list
-        of the revisions which affected the specified URL between begin and
-        end. If find_propchanges is True, self.propchange_revs will contain a
-        list of the revisions which changed properties directly on the
-        specified URL. URL must be the URL for a directory in the repository.
-        """
-        self.url = url
-
-        # Setup the log options (--quiet, so we don't show log messages)
-        log_opts = '--xml --quiet -r%s:%s "%s"' % (begin, end, url)
-        if find_propchanges:
-            # The --verbose flag lets us grab merge tracking information
-            # by looking at propchanges
-            log_opts = "--verbose " + log_opts
-
-        # Read the log to look for revision numbers and merge-tracking info
-        self.revs = []
-        self.propchange_revs = []
-        repos_pathid = PathIdentifier.from_target(url)
-        for chg in SvnLogParser(launchsvn("log %s" % log_opts,
-                                          split_lines=False)):
-            self.revs.append(chg.revision())
-            for p in chg.paths():
-                if p.action() == 'M' and p.pathid() == repos_pathid.repo_relative_path:
-                    self.propchange_revs.append(chg.revision())
-
-        # Save the range of the log
-        self.begin = int(begin)
-        if end == "HEAD":
-            # If end is not provided, we do not know which is the latest
-            # revision in the repository. So we set 'end' to the latest
-            # known revision.
-            self.end = self.revs[-1]
-        else:
-            self.end = int(end)
-
-        self._merges = None
-        self._blocks = None
-
-    def merge_metadata(self):
-        """
-        Return a VersionedProperty object, with a cached view of the merge
-        metadata in the range of this log.
-        """
-
-        # Load merge metadata if necessary
-        if not self._merges:
-            self._merges = VersionedProperty(self.url, opts["prop"])
-            self._merges.load(self)
-
-        return self._merges
-
-    def block_metadata(self):
-        if not self._blocks:
-            self._blocks = VersionedProperty(self.url, opts["block-prop"])
-            self._blocks.load(self)
-
-        return self._blocks
-
-
-class VersionedProperty:
-    """
-    A read-only, cached view of a versioned property.
-
-    self.revs contains a list of the revisions in which the property changes.
-    self.values stores the new values at each corresponding revision. If the
-    value of the property is unknown, it is set to None.
-
-    Initially, we set self.revs to [0] and self.values to [None]. This
-    indicates that, as of revision zero, we know nothing about the value of
-    the property.
-
-    Later, if you run self.load(log), we cache the value of this property over
-    the entire range of the log by noting each revision in which the property
-    was changed. At the end of the range of the log, we invalidate our cache
-    by adding the value "None" to our cache for any revisions which fall out
-    of the range of our log.
-
-    Once self.revs and self.values are filled, we can find the value of the
-    property at any arbitrary revision using a binary search on self.revs.
-    Once we find the last revision during which the property was changed,
-    we can lookup the associated value in self.values. (If the associated
-    value is None, the associated value was not cached and we have to do
-    a full propget.)
-
-    An example: We know that the 'svnmerge' property was added in r10, and
-    changed in r21. We gathered log info up until r40.
-
-    revs = [0, 10, 21, 40]
-    values = [None, "val1", "val2", None]
-
-    What these values say:
-    - From r0 to r9, we know nothing about the property.
-    - In r10, the property was set to "val1". This property stayed the same
-      until r21, when it was changed to "val2".
-    - We don't know what happened after r40.
-    """
-
-    def __init__(self, url, name):
-        """View the history of a versioned property at URL with name"""
-        self.url = url
-        self.name = name
-
-        # We know nothing about the value of the property. Setup revs
-        # and values to indicate as such.
-        self.revs = [0]
-        self.values = [None]
-
-        # We don't have any revisions cached
-        self._initial_value = None
-        self._changed_revs = []
-        self._changed_values = []
-
-    def load(self, log):
-        """
-        Load the history of property changes from the specified
-        RevisionLog object.
-        """
-
-        # Get the property value before the range of the log
-        if log.begin > 1:
-            self.revs.append(log.begin-1)
-            try:
-                self._initial_value = self.raw_get(log.begin-1)
-            except LaunchError:
-                # The specified URL might not exist before the
-                # range of the log. If so, we can safely assume
-                # that the property was empty at that time.
-                self._initial_value = { }
-            self.values.append(self._initial_value)
-        else:
-            self._initial_value = { }
-            self.values[0] = self._initial_value
-
-        # Cache the property values in the log range
-        old_value = self._initial_value
-        for rev in log.propchange_revs:
-            new_value = self.raw_get(rev)
-            if new_value != old_value:
-                self._changed_revs.append(rev)
-                self._changed_values.append(new_value)
-                self.revs.append(rev)
-                self.values.append(new_value)
-                old_value = new_value
-
-        # Indicate that we know nothing about the value of the property
-        # after the range of the log.
-        if log.revs:
-            self.revs.append(log.end+1)
-            self.values.append(None)
-
-    def raw_get(self, rev=None):
-        """
-        Get the property at revision REV. If rev is not specified, get
-        the property at revision HEAD.
-        """
-        return get_revlist_prop(self.url, self.name, rev)
-
-    def get(self, rev=None):
-        """
-        Get the property at revision REV. If rev is not specified, get
-        the property at revision HEAD.
-        """
-
-        if rev is not None:
-
-            # Find the index using a binary search
-            i = bisect(self.revs, rev) - 1
-
-            # Return the value of the property, if it was cached
-            if self.values[i] is not None:
-                return self.values[i]
-
-        # Get the current value of the property
-        return self.raw_get(rev)
-
-    def changed_revs(self, key=None):
-        """
-        Get a list of the revisions in which the specified dictionary
-        key was changed in this property. If key is not specified,
-        return a list of revisions in which any key was changed.
-        """
-        if key is None:
-            return self._changed_revs
-        else:
-            changed_revs = []
-            old_val = self._initial_value
-            for rev, val in zip(self._changed_revs, self._changed_values):
-                if val.get(key) != old_val.get(key):
-                    changed_revs.append(rev)
-                    old_val = val
-            return changed_revs
-
-    def initialized_revs(self):
-        """
-        Get a list of the revisions in which keys were added or
-        removed in this property.
-        """
-        initialized_revs = []
-        old_len = len(self._initial_value)
-        for rev, val in zip(self._changed_revs, self._changed_values):
-            if len(val) != old_len:
-                initialized_revs.append(rev)
-                old_len = len(val)
-        return initialized_revs
-
-class RevisionSet:
-    """
-    A set of revisions, held in dictionary form for easy manipulation. If we
-    were to rewrite this script for Python 2.3+, we would subclass this from
-    set (or UserSet).  As this class does not include branch
-    information, it's assumed that one instance will be used per
-    branch.
-    """
-    def __init__(self, parm):
-        """Constructs a RevisionSet from a string in property form, or from
-        a dictionary whose keys are the revisions. Raises ValueError if the
-        input string is invalid."""
-
-        self._revs = {}
-
-        revision_range_split_re = re.compile('[-:]')
-
-        if isinstance(parm, types.DictType):
-            self._revs = parm.copy()
-        elif isinstance(parm, types.ListType):
-            for R in parm:
-                self._revs[int(R)] = 1
-        else:
-            parm = parm.strip()
-            if parm:
-                for R in parm.split(","):
-                    rev_or_revs = re.split(revision_range_split_re, R)
-                    if len(rev_or_revs) == 1:
-                        self._revs[int(rev_or_revs[0])] = 1
-                    elif len(rev_or_revs) == 2:
-                        for rev in range(int(rev_or_revs[0]),
-                                         int(rev_or_revs[1])+1):
-                            self._revs[rev] = 1
-                    else:
-                        raise ValueError, 'Ill formatted revision range: ' + R
-
-    def sorted(self):
-        revnums = self._revs.keys()
-        revnums.sort()
-        return revnums
-
-    def normalized(self):
-        """Returns a normalized version of the revision set, which is an
-        ordered list of couples (start,end), with the minimum number of
-        intervals."""
-        revnums = self.sorted()
-        revnums.reverse()
-        ret = []
-        while revnums:
-            s = e = revnums.pop()
-            while revnums and revnums[-1] in (e, e+1):
-                e = revnums.pop()
-            ret.append((s, e))
-        return ret
-
-    def __str__(self):
-        """Convert the revision set to a string, using its normalized form."""
-        L = []
-        for s,e in self.normalized():
-            if s == e:
-                L.append(str(s))
-            else:
-                L.append(str(s) + "-" + str(e))
-        return ",".join(L)
-
-    def __contains__(self, rev):
-        return self._revs.has_key(rev)
-
-    def __sub__(self, rs):
-        """Compute subtraction as in sets."""
-        revs = {}
-        for r in self._revs.keys():
-            if r not in rs:
-                revs[r] = 1
-        return RevisionSet(revs)
-
-    def __and__(self, rs):
-        """Compute intersections as in sets."""
-        revs = {}
-        for r in self._revs.keys():
-            if r in rs:
-                revs[r] = 1
-        return RevisionSet(revs)
-
-    def __nonzero__(self):
-        return len(self._revs) != 0
-
-    def __len__(self):
-        """Return the number of revisions in the set."""
-        return len(self._revs)
-
-    def __iter__(self):
-        return iter(self.sorted())
-
-    def __or__(self, rs):
-        """Compute set union."""
-        revs = self._revs.copy()
-        revs.update(rs._revs)
-        return RevisionSet(revs)
-
-def merge_props_to_revision_set(merge_props, pathid):
-    """A converter which returns a RevisionSet instance containing the
-    revisions from PATH as known to BRANCH_PROPS.  BRANCH_PROPS is a
-    dictionary of pathid -> revision set branch integration information
-    (as returned by get_merge_props())."""
-    if not merge_props.has_key(pathid):
-        error('no integration info available for path "%s"' % pathid)
-    return RevisionSet(merge_props[pathid])
-
-def dict_from_revlist_prop(propvalue):
-    """Given a property value as a string containing per-source revision
-    lists, return a dictionary whose key is a source path identifier
-    and whose value is the revisions for that source."""
-    prop = {}
-
-    # Multiple sources are separated by any whitespace.
-    for L in propvalue.split():
-        # We use rsplit to play safe and allow colons in pathids.
-        pathid_str, revs = rsplit(L.strip(), ":", 1)
-
-        pathid = PathIdentifier.from_pathid(pathid_str)
-
-        # cache the "external" form we saw
-        pathid.external_form = pathid_str
-
-        prop[pathid] = revs
-    return prop
-
-def get_revlist_prop(url_or_dir, propname, rev=None):
-    """Given a repository URL or working copy path and a property
-    name, extract the values of the property which store per-source
-    revision lists and return a dictionary whose key is a source path
-    identifier, and whose value is the revisions for that source."""
-
-    # Note that propget does not return an error if the property does
-    # not exist, it simply does not output anything. So we do not need
-    # to check for LaunchError here.
-    args = '--strict "%s" "%s"' % (propname, url_or_dir)
-    if rev:
-        args = '-r %s %s' % (rev, args)
-    out = launchsvn('propget %s' % args, split_lines=False)
-
-    return dict_from_revlist_prop(out)
-
-def get_merge_props(dir):
-    """Extract the merged revisions."""
-    return get_revlist_prop(dir, opts["prop"])
-
-def get_block_props(dir):
-    """Extract the blocked revisions."""
-    return get_revlist_prop(dir, opts["block-prop"])
-
-def get_blocked_revs(dir, source_pathid):
-    p = get_block_props(dir)
-    if p.has_key(source_pathid):
-        return RevisionSet(p[source_pathid])
-    return RevisionSet("")
-
-def format_merge_props(props, sep=" "):
-    """Formats the hash PROPS as a string suitable for use as a
-    Subversion property value."""
-    assert sep in ["\t", "\n", " "]   # must be a whitespace
-    props = props.items()
-    props.sort()
-    L = []
-    for h, r in props:
-        L.append("%s:%s" % (h, r))
-    return sep.join(L)
-
-def _run_propset(dir, prop, value):
-    """Set the property 'prop' of directory 'dir' to value 'value'. We go
-    through a temporary file to not run into command line length limits."""
-    try:
-        fd, fname = tempfile.mkstemp()
-        f = os.fdopen(fd, "wb")
-    except AttributeError:
-        # Fallback for Python <= 2.3 which does not have mkstemp (mktemp
-        # suffers from race conditions. Not that we care...)
-        fname = tempfile.mktemp()
-        f = open(fname, "wb")
-
-    try:
-        f.write(value)
-        f.close()
-        report("property data written to temp file: %s" % value)
-        svn_command('propset "%s" -F "%s" "%s"' % (prop, fname, dir))
-    finally:
-        os.remove(fname)
-
-def set_props(dir, name, props):
-    props = format_merge_props(props)
-    if props:
-        _run_propset(dir, name, props)
-    else:
-        # Check if NAME exists on DIR before trying to delete it.
-        # As of 1.6 propdel no longer supports deleting a
-        # non-existent property.
-        out = launchsvn('propget "%s" "%s"' % (name, dir))
-        if out:
-            svn_command('propdel "%s" "%s"' % (name, dir))
-
-def set_merge_props(dir, props):
-    set_props(dir, opts["prop"], props)
-
-def set_block_props(dir, props):
-    set_props(dir, opts["block-prop"], props)
-
-def set_blocked_revs(dir, source_pathid, revs):
-    props = get_block_props(dir)
-    if revs:
-        props[source_pathid] = str(revs)
-    elif props.has_key(source_pathid):
-        del props[source_pathid]
-    set_block_props(dir, props)
-
-def is_url(url):
-    """Check if url looks like a valid url."""
-    return re.search(r"^[a-zA-Z][-+\.\w]*://[^\s]+$", url) is not None and url[:4] != 'uuid'
-
-def check_url(url):
-    """Similar to is_url, but actually invoke get_svninfo to find out"""
-    return get_svninfo(url) != {}
-
-def is_pathid(pathid):
-    return isinstance(pathid, PathIdentifier)
-
-def is_wc(dir):
-    """Check if a directory is a working copy."""
-    return os.path.isdir(os.path.join(dir, ".svn")) or \
-           os.path.isdir(os.path.join(dir, "_svn"))
-
-_cache_svninfo = {}
-def get_svninfo(target):
-    """Extract the subversion information for a target (through 'svn info').
-    This function uses an internal cache to let clients query information
-    many times."""
-    if _cache_svninfo.has_key(target):
-        return _cache_svninfo[target]
-    info = {}
-    for L in launchsvn('info "%s"' % target):
-        L = L.strip()
-        if not L:
-            continue
-        key, value = L.split(": ", 1)
-        info[key] = value.strip()
-    _cache_svninfo[target] = info
-    return info
-
-def target_to_url(target):
-    """Convert working copy path or repos URL to a repos URL."""
-    if is_wc(target):
-        info = get_svninfo(target)
-        return info["URL"]
-    return target
-
-_cache_reporoot = {}
-def get_repo_root(target):
-    """Compute the root repos URL given a working-copy path, or a URL."""
-    # Try using "svn info WCDIR". This works only on SVN clients >= 1.3
-    if not is_url(target):
-        try:
-            info = get_svninfo(target)
-            root = info["Repository Root"]
-            _cache_reporoot[root] = None
-            return root
-        except KeyError:
-            pass
-        url = target_to_url(target)
-        assert url[-1] != '/'
-    else:
-        url = target
-
-    # Go through the cache of the repository roots. This avoids extra
-    # server round-trips if we are asking the root of different URLs
-    # in the same repository (the cache in get_svninfo() cannot detect
-    # that of course and would issue a remote command).
-    assert is_url(url)
-    for r in _cache_reporoot:
-        if url.startswith(r):
-            return r
-
-    # Try using "svn info URL". This works only on SVN clients >= 1.2
-    try:
-        info = get_svninfo(url)
-        # info may be {}, in which case we'll see KeyError here
-        root = info["Repository Root"]
-        _cache_reporoot[root] = None
-        return root
-    except (KeyError, LaunchError):
-        pass
-
-    # Constrained to older svn clients, we are stuck with this ugly
-    # trial-and-error implementation. It could be made faster with a
-    # binary search.
-    while url:
-        temp = os.path.dirname(url)
-        try:
-            launchsvn('proplist "%s"' % temp)
-        except LaunchError:
-            _cache_reporoot[url] = None
-            return rstrip(url, "/")
-        url = temp
-
-    error("svn repos root of %s not found" % target)
-
-class SvnLogParser:
-    """
-    Parse the "svn log", going through the XML output and using pulldom (which
-    would even allow streaming the command output).
-    """
-    def __init__(self, xml):
-        self._events = pulldom.parseString(xml)
-    def __getitem__(self, idx):
-        for event, node in self._events:
-            if event == pulldom.START_ELEMENT and node.tagName == "logentry":
-                self._events.expandNode(node)
-                return self.SvnLogRevision(node)
-        raise IndexError, "Could not find 'logentry' tag in xml"
-
-    class SvnLogRevision:
-        def __init__(self, xmlnode):
-            self.n = xmlnode
-        def revision(self):
-            return int(self.n.getAttribute("revision"))
-        def author(self):
-            return self.n.getElementsByTagName("author")[0].firstChild.data
-        def paths(self):
-            return [self.SvnLogPath(n)
-                    for n in  self.n.getElementsByTagName("path")]
-
-        class SvnLogPath:
-            def __init__(self, xmlnode):
-                self.n = xmlnode
-            def action(self):
-                return self.n.getAttribute("action")
-            def pathid(self):
-                return self.n.firstChild.data
-            def copyfrom_rev(self):
-                try: return self.n.getAttribute("copyfrom-rev")
-                except KeyError: return None
-            def copyfrom_pathid(self):
-                try: return self.n.getAttribute("copyfrom-path")
-                except KeyError: return None
-
-def get_copyfrom(target):
-    """Get copyfrom info for a given target (it represents the
-    repository-relative path from where it was branched). NOTE:
-    repos root has no copyfrom info. In this case None is returned.
-
-    Returns the:
-        - source file or directory from which the copy was made
-        - revision from which that source was copied
-        - revision in which the copy was committed
-    """
-    repos_path = PathIdentifier.from_target(target).repo_relative_path
-    for chg in SvnLogParser(launchsvn('log -v --xml --stop-on-copy "%s"'
-                                      % target, split_lines=False)):
-        for p in chg.paths():
-            if p.action() == 'A' and p.pathid() == repos_path:
-                # These values will be None if the corresponding elements are
-                # not found in the log.
-                return p.copyfrom_pathid(), p.copyfrom_rev(), chg.revision()
-    return None,None,None
-
-def get_latest_rev(url):
-    """Get the latest revision of the repository of which URL is part."""
-    try:
-        info = get_svninfo(url)
-        if not info.has_key("Revision"):
-            error("Not a valid URL: %s" % url)
-        return info["Revision"]
-    except LaunchError:
-        # Alternative method for latest revision checking (for svn < 1.2)
-        report('checking latest revision of "%s"' % url)
-        L = launchsvn('proplist --revprop -r HEAD "%s"' % opts["source-url"])[0]
-        rev = re.search("revision (\d+)", L).group(1)
-        report('latest revision of "%s" is %s' % (url, rev))
-        return rev
-
-def get_created_rev(url):
-    """Lookup the revision at which the path identified by the
-    provided URL was first created."""
-    oldest_rev = -1
-    report('determining oldest revision for URL "%s"' % url)
-    ### TODO: Refactor this to use a modified RevisionLog class.
-    lines = None
-    cmd = "log -r1:HEAD --stop-on-copy -q " + url
-    try:
-        lines = launchsvn(cmd + " --limit=1")
-    except LaunchError:
-        # Assume that --limit isn't supported by the installed 'svn'.
-        lines = launchsvn(cmd)
-    if lines and len(lines) > 1:
-        i = lines[1].find(" ")
-        if i != -1:
-            oldest_rev = int(lines[1][1:i])
-    if oldest_rev == -1:
-        error('unable to determine oldest revision for URL "%s"' % url)
-    return oldest_rev
-
-def get_commit_log(url, revnum):
-    """Return the log message for a specific integer revision
-    number."""
-    out = launchsvn("log --incremental -r%d %s" % (revnum, url))
-    return recode_stdout_to_file("".join(out[1:]))
-
-def construct_merged_log_message(url, revnums):
-    """Return a commit log message containing all the commit messages
-    in the specified revisions at the given URL.  The separator used
-    in this log message is determined by searching for the longest
-    svnmerge separator existing in the commit log messages and
-    extending it by one more separator.  This results in a new commit
-    log message that is clearer in describing merges that contain
-    other merges. Trailing newlines are removed from the embedded
-    log messages."""
-    messages = ['']
-    longest_sep = ''
-    for r in revnums.sorted():
-        message = get_commit_log(url, r)
-        if message:
-            message = re.sub(r'(\r\n|\r|\n)', "\n", message)
-            message = rstrip(message, "\n") + "\n"
-            messages.append(prefix_lines(LOG_LINE_PREFIX, message))
-            for match in LOG_SEPARATOR_RE.findall(message):
-                sep = match[1]
-                if len(sep) > len(longest_sep):
-                    longest_sep = sep
-
-    longest_sep += LOG_SEPARATOR + "\n"
-    messages.append('')
-    return longest_sep.join(messages)
-
-def get_default_source(branch_target, branch_props):
-    """Return the default source for branch_target (given its branch_props).
-    Error out if there is ambiguity."""
-    if not branch_props:
-        error("no integration info available")
-
-    props = branch_props.copy()
-    pathid = PathIdentifier.from_target(branch_target)
-
-    # To make bidirectional merges easier, find the target's
-    # repository local path so it can be removed from the list of
-    # possible integration sources.
-    if props.has_key(pathid):
-        del props[pathid]
-
-    if len(props) > 1:
-        err_msg = "multiple sources found. "
-        err_msg += "Explicit source argument (-S/--source) required.\n"
-        err_msg += "The merge sources available are:"
-        for prop in props:
-          err_msg += "\n  " + str(prop)
-        error(err_msg)
-
-    return props.keys()[0]
-
-def should_find_reflected(branch_dir):
-    should_find_reflected = opts["bidirectional"]
-
-    # If the source has integration info for the target, set find_reflected
-    # even if --bidirectional wasn't specified
-    if not should_find_reflected:
-        source_props = get_merge_props(opts["source-url"])
-        should_find_reflected = source_props.has_key(PathIdentifier.from_target(branch_dir))
-
-    return should_find_reflected
-
-def analyze_revs(target_pathid, url, begin=1, end=None,
-                 find_reflected=False):
-    """For the source of the merges in the source URL being merged into
-    target_pathid, analyze the revisions in the interval begin-end (which
-    defaults to 1-HEAD), to find out which revisions are changes in
-    the url, which are changes elsewhere (so-called 'phantom'
-    revisions), optionally which are reflected changes (to avoid
-    conflicts that can occur when doing bidirectional merging between
-    branches), and which revisions initialize merge tracking against other
-    branches.  Return a tuple of four RevisionSet's:
-        (real_revs, phantom_revs, reflected_revs, initialized_revs).
-
-    NOTE: To maximize speed, if "end" is not provided, the function is
-    not able to find phantom revisions following the last real
-    revision in the URL.
-    """
-
-    begin = str(begin)
-    if end is None:
-        end = "HEAD"
-    else:
-        end = str(end)
-        if long(begin) > long(end):
-            return RevisionSet(""), RevisionSet(""), \
-                   RevisionSet(""), RevisionSet("")
-
-    logs[url] = RevisionLog(url, begin, end, find_reflected)
-    revs = RevisionSet(logs[url].revs)
-
-    if end == "HEAD":
-        # If end is not provided, we do not know which is the latest revision
-        # in the repository. So return the phantom revision set only up to
-        # the latest known revision.
-        end = str(list(revs)[-1])
-
-    phantom_revs = RevisionSet("%s-%s" % (begin, end)) - revs
-
-    if find_reflected:
-        reflected_revs = logs[url].merge_metadata().changed_revs(target_pathid)
-        reflected_revs += logs[url].block_metadata().changed_revs(target_pathid)
-    else:
-        reflected_revs = []
-
-    initialized_revs = RevisionSet(logs[url].merge_metadata().initialized_revs())
-    reflected_revs = RevisionSet(reflected_revs)
-
-    return revs, phantom_revs, reflected_revs, initialized_revs
-
-def analyze_source_revs(branch_target, source_url, **kwargs):
-    """For the given branch and source, extract the real and phantom
-    source revisions."""
-    branch_url = target_to_url(branch_target)
-    branch_pathid = PathIdentifier.from_target(branch_target)
-
-    # Extract the latest repository revision from the URL of the branch
-    # directory (which is already cached at this point).
-    end_rev = get_latest_rev(source_url)
-
-    # Calculate the base of analysis. If there is a "1-XX" interval in the
-    # merged_revs, we do not need to check those.
-    base = 1
-    r = opts["merged-revs"].normalized()
-    if r and r[0][0] == 1:
-        base = r[0][1] + 1
-
-    # See if the user filtered the revision set. If so, we are not
-    # interested in something outside that range.
-    if opts["revision"]:
-        revs = RevisionSet(opts["revision"]).sorted()
-        if base < revs[0]:
-            base = revs[0]
-        if end_rev > revs[-1]:
-            end_rev = revs[-1]
-
-    return analyze_revs(branch_pathid, source_url, base, end_rev, **kwargs)
-
-def minimal_merge_intervals(revs, phantom_revs):
-    """Produce the smallest number of intervals suitable for merging. revs
-    is the RevisionSet which we want to merge, and phantom_revs are phantom
-    revisions which can be used to concatenate intervals, thus minimizing the
-    number of operations."""
-    revnums = revs.normalized()
-    ret = []
-
-    cur = revnums.pop()
-    while revnums:
-        next = revnums.pop()
-        assert next[1] < cur[0]      # otherwise it is not ordered
-        assert cur[0] - next[1] > 1  # otherwise it is not normalized
-        for i in range(next[1]+1, cur[0]):
-            if i not in phantom_revs:
-                ret.append(cur)
-                cur = next
-                break
-        else:
-            cur = (next[0], cur[1])
-
-    ret.append(cur)
-    ret.reverse()
-    return ret
-
-def display_revisions(revs, display_style, revisions_msg, source_url):
-    """Show REVS as dictated by DISPLAY_STYLE, either numerically, in
-    log format, or as diffs.  When displaying revisions numerically,
-    prefix output with REVISIONS_MSG when in verbose mode.  Otherwise,
-    request logs or diffs using SOURCE_URL."""
-    if display_style == "revisions":
-        if revs:
-            report(revisions_msg)
-            print revs
-    elif display_style == "logs":
-        for start,end in revs.normalized():
-            svn_command('log --incremental -v -r %d:%d %s' % \
-                        (start, end, source_url))
-    elif display_style in ("diffs", "summarize"):
-        if display_style == 'summarize':
-            summarize = '--summarize '
-        else:
-            summarize = ''
-
-        for start, end in revs.normalized():
-            print
-            if start == end:
-                print "%s: changes in revision %d follow" % (NAME, start)
-            else:
-                print "%s: changes in revisions %d-%d follow" % (NAME,
-                                                                 start, end)
-            print
-
-            # Note: the starting revision number to 'svn diff' is
-            # NOT inclusive so we have to subtract one from ${START}.
-            svn_command("diff -r %d:%d %s %s" % (start - 1, end, summarize,
-                                                 source_url))
-    else:
-        assert False, "unhandled display style: %s" % display_style
-
-def action_init(target_dir, target_props):
-    """Initialize for merges."""
-    # Check that directory is ready for being modified
-    check_dir_clean(target_dir)
-
-    target_pathid = PathIdentifier.from_target(target_dir)
-    source_pathid = opts['source-pathid']
-    if source_pathid == target_pathid:
-        error("cannot init integration source path '%s'\nIts path identifier does not "
-              "differ from the path identifier of the current directory, '%s'."
-              % (source_pathid, target_pathid))
-
-    source_url = opts['source-url']
-
-    # If the user hasn't specified the revisions to use, see if the
-    # "source" is a copy from the current tree and if so, we can use
-    # the version data obtained from it.
-    revision_range = opts["revision"]
-    if not revision_range:
-        # If source was originally copied from target, and we are merging
-        # changes from source to target (the copy target is the merge source,
-        # and the copy source is the merge target), then we want to mark as
-        # integrated up to the rev in which the copy was committed which
-        # created the merge source:
-        cf_source, cf_rev, copy_committed_in_rev = get_copyfrom(source_url)
-
-        cf_pathid = None
-        if cf_source:
-            cf_url = get_repo_root(source_url) + cf_source
-            if is_url(cf_url) and check_url(cf_url):
-                cf_pathid = PathIdentifier.from_target(cf_url)
-
-        if target_pathid == cf_pathid:
-            report('the source "%s" was copied from "%s" in rev %s and committed in rev %s' %
-                   (source_url, target_dir, cf_rev, copy_committed_in_rev))
-            revision_range = "1-" + str(copy_committed_in_rev)
-
-    if not revision_range:
-        # If the reverse is true: copy source is the merge source, and
-        # the copy target is the merge target, then we want to mark as
-        # integrated up to the specific rev of the merge target from
-        # which the merge source was copied.  (Longer discussion at:
-        # http://subversion.tigris.org/issues/show_bug.cgi?id=2810  )
-        cf_source, cf_rev, copy_committed_in_rev = get_copyfrom(target_dir)
-
-        cf_pathid = None
-        if cf_source:
-            cf_url = get_repo_root(target_dir) + cf_source
-            if is_url(cf_url) and check_url(cf_url):
-                cf_pathid = PathIdentifier.from_target(cf_url)
-
-        source_pathid = PathIdentifier.from_target(source_url)
-        if source_pathid == cf_pathid:
-            report('the target "%s" was copied the source "%s" in rev %s and committed in rev %s' %
-                   (target_dir, source_url, cf_rev, copy_committed_in_rev))
-            revision_range = "1-" + cf_rev
-
-    # When neither the merge source nor target is a copy of the other, and
-    # the user did not specify a revision range, then choose a default which is
-    # the current revision; saying, in effect, "everything has been merged, so
-    # mark as integrated up to the latest rev on source url).
-    if not revision_range:
-        revision_range = "1-" + get_latest_rev(source_url)
-
-    revs = RevisionSet(revision_range)
-
-    report('marking "%s" as already containing revisions "%s" of "%s"' %
-           (target_dir, revs, source_url))
-
-    revs = str(revs)
-    # If the local svnmerge-integrated property already has an entry
-    # for the source-pathid, simply error out.
-    if not opts["force"] and target_props.has_key(source_pathid):
-        error('Repository-relative path %s has already been initialized at %s\n'
-              'Use --force to re-initialize' % (source_pathid, target_dir))
-    # set the pathid's external_form based on the user's options
-    source_pathid.external_form = source_pathid.format(opts['location-type'])
-
-    revs = str(revs)
-    target_props[source_pathid] = revs
-
-    # Set property
-    set_merge_props(target_dir, target_props)
-
-    # Write out commit message if desired
-    if opts["commit-file"]:
-        f = open(opts["commit-file"], "w")
-        print >>f, 'Initialized merge tracking via "%s" with revisions "%s" from ' \
-            % (NAME, revs)
-        print >>f, '%s' % source_url
-        f.close()
-        report('wrote commit message to "%s"' % opts["commit-file"])
-
-def action_avail(branch_dir, branch_props):
-    """Show commits available for merges."""
-    source_revs, phantom_revs, reflected_revs, initialized_revs = \
-               analyze_source_revs(branch_dir, opts["source-url"],
-                                   find_reflected=
-                                       should_find_reflected(branch_dir))
-    report('skipping phantom revisions: %s' % phantom_revs)
-    if reflected_revs:
-        report('skipping reflected revisions: %s' % reflected_revs)
-        report('skipping initialized revisions: %s' % initialized_revs)
-
-    blocked_revs = get_blocked_revs(branch_dir, opts["source-pathid"])
-    avail_revs = source_revs - opts["merged-revs"] - blocked_revs - \
-                 reflected_revs - initialized_revs
-
-    # Compose the set of revisions to show
-    revs = RevisionSet("")
-    report_msg = "revisions available to be merged are:"
-    if "avail" in opts["avail-showwhat"]:
-        revs |= avail_revs
-    if "blocked" in opts["avail-showwhat"]:
-        revs |= blocked_revs
-        report_msg = "revisions blocked are:"
-
-    # Limit to revisions specified by -r (if any)
-    if opts["revision"]:
-        revs = revs & RevisionSet(opts["revision"])
-
-    display_revisions(revs, opts["avail-display"],
-                      report_msg,
-                      opts["source-url"])
-
-def action_integrated(branch_dir, branch_props):
-    """Show change sets already merged.  This set of revisions is
-    calculated from taking svnmerge-integrated property from the
-    branch, and subtracting any revision older than the branch
-    creation revision."""
-    # Extract the integration info for the branch_dir
-    branch_props = get_merge_props(branch_dir)
-    revs = merge_props_to_revision_set(branch_props, opts["source-pathid"])
-
-    # Lookup the oldest revision on the branch path.
-    oldest_src_rev = get_created_rev(opts["source-url"])
-
-    # Subtract any revisions which pre-date the branch.
-    report("subtracting revisions which pre-date the source URL (%d)" %
-           oldest_src_rev)
-    revs = revs - RevisionSet(range(1, oldest_src_rev))
-
-    # Limit to revisions specified by -r (if any)
-    if opts["revision"]:
-        revs = revs & RevisionSet(opts["revision"])
-
-    display_revisions(revs, opts["integrated-display"],
-                      "revisions already integrated are:", opts["source-url"])
-
-def action_merge(branch_dir, branch_props):
-    """Record merge meta data, and do the actual merge (if not
-    requested otherwise via --record-only)."""
-    # Check branch directory is ready for being modified
-    check_dir_clean(branch_dir)
-
-    source_revs, phantom_revs, reflected_revs, initialized_revs = \
-               analyze_source_revs(branch_dir, opts["source-url"],
-                                   find_reflected=
-                                       should_find_reflected(branch_dir))
-
-    if opts["revision"]:
-        revs = RevisionSet(opts["revision"])
-    else:
-        revs = source_revs
-
-    blocked_revs = get_blocked_revs(branch_dir, opts["source-pathid"])
-    merged_revs = opts["merged-revs"]
-
-    # Show what we're doing
-    if opts["verbose"]:  # just to avoid useless calculations
-        if merged_revs & revs:
-            report('"%s" already contains revisions %s' % (branch_dir,
-                                                           merged_revs & revs))
-        if phantom_revs:
-            report('memorizing phantom revision(s): %s' % phantom_revs)
-        if reflected_revs:
-            report('memorizing reflected revision(s): %s' % reflected_revs)
-        if blocked_revs & revs:
-            report('skipping blocked revisions(s): %s' % (blocked_revs & revs))
-        if initialized_revs:
-            report('skipping initialized revision(s): %s' % initialized_revs)
-
-    # Compute final merge set.
-    revs = revs - merged_revs - blocked_revs - reflected_revs - \
-           phantom_revs - initialized_revs
-    if not revs:
-        report('no revisions to merge, exiting')
-        return
-
-    # When manually marking revisions as merged, we only update the
-    # integration meta data, and don't perform an actual merge.
-    record_only = opts["record-only"]
-
-    if record_only:
-        report('recording merge of revision(s) %s from "%s"' %
-               (revs, opts["source-url"]))
-    else:
-        report('merging in revision(s) %s from "%s"' %
-               (revs, opts["source-url"]))
-
-    # Do the merge(s). Note: the starting revision number to 'svn merge'
-    # is NOT inclusive so we have to subtract one from start.
-    # We try to keep the number of merge operations as low as possible,
-    # because it is faster and reduces the number of conflicts.
-    old_block_props = get_block_props(branch_dir)
-    merge_metadata = logs[opts["source-url"]].merge_metadata()
-    block_metadata = logs[opts["source-url"]].block_metadata()
-    for start,end in minimal_merge_intervals(revs, phantom_revs):
-        if not record_only:
-            # Preset merge/blocked properties to the source value at
-            # the start rev to avoid spurious property conflicts
-            set_merge_props(branch_dir, merge_metadata.get(start - 1))
-            set_block_props(branch_dir, block_metadata.get(start - 1))
-            # Do the merge
-            svn_command("merge --force -r %d:%d %s %s" % \
-                        (start - 1, end, opts["source-url"], branch_dir))
-            # TODO: to support graph merging, add logic to merge the property
-            # meta-data manually
-
-    # Update the set of merged revisions.
-    merged_revs = merged_revs | revs | reflected_revs | phantom_revs | initialized_revs
-    branch_props[opts["source-pathid"]] = str(merged_revs)
-    set_merge_props(branch_dir, branch_props)
-    # Reset the blocked revs
-    set_block_props(branch_dir, old_block_props)
-
-    # Write out commit message if desired
-    if opts["commit-file"]:
-        f = open(opts["commit-file"], "w")
-        if record_only:
-            print >>f, 'Recorded merge of revisions %s via %s from ' % \
-                  (revs, NAME)
-        else:
-            print >>f, 'Merged revisions %s via %s from ' % \
-                  (revs, NAME)
-        print >>f, '%s' % opts["source-url"]
-        if opts["commit-verbose"]:
-            print >>f
-            print >>f, construct_merged_log_message(opts["source-url"], revs),
-
-        f.close()
-        report('wrote commit message to "%s"' % opts["commit-file"])
-
-def action_block(branch_dir, branch_props):
-    """Block revisions."""
-    # Check branch directory is ready for being modified
-    check_dir_clean(branch_dir)
-
-    source_revs, phantom_revs, reflected_revs, initialized_revs = \
-               analyze_source_revs(branch_dir, opts["source-url"])
-    revs_to_block = source_revs - opts["merged-revs"]
-
-    # Limit to revisions specified by -r (if any)
-    if opts["revision"]:
-        revs_to_block = RevisionSet(opts["revision"]) & revs_to_block
-
-    if not revs_to_block:
-        error('no available revisions to block')
-
-    # Change blocked information
-    blocked_revs = get_blocked_revs(branch_dir, opts["source-pathid"])
-    blocked_revs = blocked_revs | revs_to_block
-    set_blocked_revs(branch_dir, opts["source-pathid"], blocked_revs)
-
-    # Write out commit message if desired
-    if opts["commit-file"]:
-        f = open(opts["commit-file"], "w")
-        print >>f, 'Blocked revisions %s via %s' % (revs_to_block, NAME)
-        if opts["commit-verbose"]:
-            print >>f
-            print >>f, construct_merged_log_message(opts["source-url"],
-                                                    revs_to_block),
-
-        f.close()
-        report('wrote commit message to "%s"' % opts["commit-file"])
-
-def action_unblock(branch_dir, branch_props):
-    """Unblock revisions."""
-    # Check branch directory is ready for being modified
-    check_dir_clean(branch_dir)
-
-    blocked_revs = get_blocked_revs(branch_dir, opts["source-pathid"])
-    revs_to_unblock = blocked_revs
-
-    # Limit to revisions specified by -r (if any)
-    if opts["revision"]:
-        revs_to_unblock = revs_to_unblock & RevisionSet(opts["revision"])
-
-    if not revs_to_unblock:
-        error('no available revisions to unblock')
-
-    # Change blocked information
-    blocked_revs = blocked_revs - revs_to_unblock
-    set_blocked_revs(branch_dir, opts["source-pathid"], blocked_revs)
-
-    # Write out commit message if desired
-    if opts["commit-file"]:
-        f = open(opts["commit-file"], "w")
-        print >>f, 'Unblocked revisions %s via %s' % (revs_to_unblock, NAME)
-        if opts["commit-verbose"]:
-            print >>f
-            print >>f, construct_merged_log_message(opts["source-url"],
-                                                    revs_to_unblock),
-        f.close()
-        report('wrote commit message to "%s"' % opts["commit-file"])
-
-def action_rollback(branch_dir, branch_props):
-    """Rollback previously integrated revisions."""
-
-    # Make sure the revision arguments are present
-    if not opts["revision"]:
-        error("The '-r' option is mandatory for rollback")
-
-    # Check branch directory is ready for being modified
-    check_dir_clean(branch_dir)
-
-    # Extract the integration info for the branch_dir
-    branch_props = get_merge_props(branch_dir)
-    # Get the list of all revisions already merged into this source-pathid.
-    merged_revs = merge_props_to_revision_set(branch_props,
-                                              opts["source-pathid"])
-
-    # At which revision was the src created?
-    oldest_src_rev = get_created_rev(opts["source-url"])
-    src_pre_exist_range = RevisionSet("1-%d" % oldest_src_rev)
-
-    # Limit to revisions specified by -r (if any)
-    revs = merged_revs & RevisionSet(opts["revision"])
-
-    # make sure there's some revision to rollback
-    if not revs:
-        report("Nothing to rollback in revision range r%s" % opts["revision"])
-        return
-
-    # If even one specified revision lies outside the lifetime of the
-    # merge source, error out.
-    if revs & src_pre_exist_range:
-        err_str  = "Specified revision range falls out of the rollback range.\n"
-        err_str += "%s was created at r%d" % (opts["source-pathid"],
-                                              oldest_src_rev)
-        error(err_str)
-
-    record_only = opts["record-only"]
-
-    if record_only:
-        report('recording rollback of revision(s) %s from "%s"' %
-               (revs, opts["source-url"]))
-    else:
-        report('rollback of revision(s) %s from "%s"' %
-               (revs, opts["source-url"]))
-
-    # Do the reverse merge(s). Note: the starting revision number
-    # to 'svn merge' is NOT inclusive so we have to subtract one from start.
-    # We try to keep the number of merge operations as low as possible,
-    # because it is faster and reduces the number of conflicts.
-    rollback_intervals = minimal_merge_intervals(revs, [])
-    # rollback in the reverse order of merge
-    rollback_intervals.reverse()
-    for start, end in rollback_intervals:
-        if not record_only:
-            # Do the merge
-            svn_command("merge --force -r %d:%d %s %s" % \
-                        (end, start - 1, opts["source-url"], branch_dir))
-
-    # Write out commit message if desired
-    # calculate the phantom revs first
-    if opts["commit-file"]:
-        f = open(opts["commit-file"], "w")
-        if record_only:
-            print >>f, 'Recorded rollback of revisions %s via %s from ' % \
-                  (revs , NAME)
-        else:
-            print >>f, 'Rolled back revisions %s via %s from ' % \
-                  (revs , NAME)
-        print >>f, '%s' % opts["source-url"]
-
-        f.close()
-        report('wrote commit message to "%s"' % opts["commit-file"])
-
-    # Update the set of merged revisions.
-    merged_revs = merged_revs - revs
-    branch_props[opts["source-pathid"]] = str(merged_revs)
-    set_merge_props(branch_dir, branch_props)
-
-def action_uninit(branch_dir, branch_props):
-    """Uninit SOURCE URL."""
-    # Check branch directory is ready for being modified
-    check_dir_clean(branch_dir)
-
-    # If the source-pathid does not have an entry in the svnmerge-integrated
-    # property, simply error out.
-    if not branch_props.has_key(opts["source-pathid"]):
-        error('Repository-relative path "%s" does not contain merge '
-              'tracking information for "%s"' \
-                % (opts["source-pathid"], branch_dir))
-
-    del branch_props[opts["source-pathid"]]
-
-    # Set merge property with the selected source deleted
-    set_merge_props(branch_dir, branch_props)
-
-    # Set blocked revisions for the selected source to None
-    set_blocked_revs(branch_dir, opts["source-pathid"], None)
-
-    # Write out commit message if desired
-    if opts["commit-file"]:
-        f = open(opts["commit-file"], "w")
-        print >>f, 'Removed merge tracking for "%s" for ' % NAME
-        print >>f, '%s' % opts["source-url"]
-        f.close()
-        report('wrote commit message to "%s"' % opts["commit-file"])
-
-###############################################################################
-# Command line parsing -- options and commands management
-###############################################################################
-
-class OptBase:
-    def __init__(self, *args, **kwargs):
-        self.help = kwargs["help"]
-        del kwargs["help"]
-        self.lflags = []
-        self.sflags = []
-        for a in args:
-            if a.startswith("--"):   self.lflags.append(a)
-            elif a.startswith("-"):  self.sflags.append(a)
-            else:
-                raise TypeError, "invalid flag name: %s" % a
-        if kwargs.has_key("dest"):
-            self.dest = kwargs["dest"]
-            del kwargs["dest"]
-        else:
-            if not self.lflags:
-                raise TypeError, "cannot deduce dest name without long options"
-            self.dest = self.lflags[0][2:]
-        if kwargs:
-            raise TypeError, "invalid keyword arguments: %r" % kwargs.keys()
-    def repr_flags(self):
-        f = self.sflags + self.lflags
-        r = f[0]
-        for fl in f[1:]:
-            r += " [%s]" % fl
-        return r
-
-class Option(OptBase):
-    def __init__(self, *args, **kwargs):
-        self.default = kwargs.setdefault("default", 0)
-        del kwargs["default"]
-        self.value = kwargs.setdefault("value", None)
-        del kwargs["value"]
-        OptBase.__init__(self, *args, **kwargs)
-    def apply(self, state, value):
-        assert value == ""
-        if self.value is not None:
-            state[self.dest] = self.value
-        else:
-            state[self.dest] += 1
-
-class OptionArg(OptBase):
-    def __init__(self, *args, **kwargs):
-        self.default = kwargs["default"]
-        del kwargs["default"]
-        self.metavar = kwargs.setdefault("metavar", None)
-        del kwargs["metavar"]
-        OptBase.__init__(self, *args, **kwargs)
-
-        if self.metavar is None:
-            if self.dest is not None:
-                self.metavar = self.dest.upper()
-            else:
-                self.metavar = "arg"
-        if self.default:
-            self.help += " (default: %s)" % self.default
-    def apply(self, state, value):
-        assert value is not None
-        state[self.dest] = value
-    def repr_flags(self):
-        r = OptBase.repr_flags(self)
-        return r + " " + self.metavar
-
-class CommandOpts:
-    class Cmd:
-        def __init__(self, *args):
-            self.name, self.func, self.usage, self.help, self.opts = args
-        def short_help(self):
-            return self.help.split(".")[0]
-        def __str__(self):
-            return self.name
-        def __call__(self, *args, **kwargs):
-            return self.func(*args, **kwargs)
-
-    def __init__(self, global_opts, common_opts, command_table, version=None):
-        self.progname = NAME
-        self.version = version.replace("%prog", self.progname)
-        self.cwidth = console_width() - 2
-        self.ctable = command_table.copy()
-        self.gopts = global_opts[:]
-        self.copts = common_opts[:]
-        self._add_builtins()
-        for k in self.ctable.keys():
-            cmd = self.Cmd(k, *self.ctable[k])
-            opts = []
-            for o in cmd.opts:
-                if isinstance(o, types.StringType) or \
-                   isinstance(o, types.UnicodeType):
-                    o = self._find_common(o)
-                opts.append(o)
-            cmd.opts = opts
-            self.ctable[k] = cmd
-
-    def _add_builtins(self):
-        self.gopts.append(
-            Option("-h", "--help", help="show help for this command and exit"))
-        if self.version is not None:
-            self.gopts.append(
-                Option("-V", "--version", help="show version info and exit"))
-        self.ctable["help"] = (self._cmd_help,
-            "help [COMMAND]",
-            "Display help for a specific command. If COMMAND is omitted, "
-            "display brief command description.",
-            [])
-
-    def _cmd_help(self, cmd=None, *args):
-        if args:
-            self.error("wrong number of arguments", "help")
-        if cmd is not None:
-            cmd = self._command(cmd)
-            self.print_command_help(cmd)
-        else:
-            self.print_command_list()
-
-    def _paragraph(self, text, width=78):
-        chunks = re.split("\s+", text.strip())
-        chunks.reverse()
-        lines = []
-        while chunks:
-            L = chunks.pop()
-            while chunks and len(L) + len(chunks[-1]) + 1 <= width:
-                L += " " + chunks.pop()
-            lines.append(L)
-        return lines
-
-    def _paragraphs(self, text, *args, **kwargs):
-        pars = text.split("\n\n")
-        lines = self._paragraph(pars[0], *args, **kwargs)
-        for p in pars[1:]:
-            lines.append("")
-            lines.extend(self._paragraph(p, *args, **kwargs))
-        return lines
-
-    def _print_wrapped(self, text, indent=0):
-        text = self._paragraphs(text, self.cwidth - indent)
-        print text.pop(0)
-        for t in text:
-            print " " * indent + t
-
-    def _find_common(self, fl):
-        for o in self.copts:
-            if fl in o.lflags+o.sflags:
-                return o
-        assert False, fl
-
-    def _compute_flags(self, opts, check_conflicts=True):
-        back = {}
-        sfl = ""
-        lfl = []
-        for o in opts:
-            sapp = lapp = ""
-            if isinstance(o, OptionArg):
-                sapp, lapp = ":", "="
-            for s in o.sflags:
-                if check_conflicts and back.has_key(s):
-                    raise RuntimeError, "option conflict: %s" % s
-                back[s] = o
-                sfl += s[1:] + sapp
-            for l in o.lflags:
-                if check_conflicts and back.has_key(l):
-                    raise RuntimeError, "option conflict: %s" % l
-                back[l] = o
-                lfl.append(l[2:] + lapp)
-        return sfl, lfl, back
-
-    def _extract_command(self, args):
-        """
-        Try to extract the command name from the argument list. This is
-        non-trivial because we want to allow command-specific options even
-        before the command itself.
-        """
-        opts = self.gopts[:]
-        for cmd in self.ctable.values():
-            opts.extend(cmd.opts)
-        sfl, lfl, _ = self._compute_flags(opts, check_conflicts=False)
-
-        lopts,largs = getopt.getopt(args, sfl, lfl)
-        if not largs:
-            return None
-        return self._command(largs[0])
-
-    def _fancy_getopt(self, args, opts, state=None):
-        if state is None:
-            state= {}
-        for o in opts:
-            if not state.has_key(o.dest):
-                state[o.dest] = o.default
-
-        sfl, lfl, back = self._compute_flags(opts)
-        try:
-            lopts,args = getopt.gnu_getopt(args, sfl, lfl)
-        except AttributeError:
-            # Before Python 2.3, there was no gnu_getopt support.
-            # So we can't parse intermixed positional arguments
-            # and options.
-            lopts,args = getopt.getopt(args, sfl, lfl)
-
-        for o,v in lopts:
-            back[o].apply(state, v)
-        return state, args
-
-    def _command(self, cmd):
-        if not self.ctable.has_key(cmd):
-            self.error("unknown command: '%s'" % cmd)
-        return self.ctable[cmd]
-
-    def parse(self, args):
-        if not args:
-            self.print_small_help()
-            sys.exit(0)
-
-        cmd = None
-        try:
-            cmd = self._extract_command(args)
-            opts = self.gopts[:]
-            if cmd:
-                opts.extend(cmd.opts)
-                args.remove(cmd.name)
-            state, args = self._fancy_getopt(args, opts)
-        except getopt.GetoptError, e:
-            self.error(e, cmd)
-
-        # Handle builtins
-        if self.version is not None and state["version"]:
-            self.print_version()
-            sys.exit(0)
-        if state["help"]: # special case for --help
-            if cmd:
-                self.print_command_help(cmd)
-                sys.exit(0)
-            cmd = self.ctable["help"]
-        else:
-            if cmd is None:
-                self.error("command argument required")
-        if str(cmd) == "help":
-            cmd(*args)
-            sys.exit(0)
-        return cmd, args, state
-
-    def error(self, s, cmd=None):
-        print >>sys.stderr, "%s: %s" % (self.progname, s)
-        if cmd is not None:
-            self.print_command_help(cmd)
-        else:
-            self.print_small_help()
-        sys.exit(1)
-    def print_small_help(self):
-        print "Type '%s help' for usage" % self.progname
-    def print_usage_line(self):
-        print "usage: %s <subcommand> [options...] [args...]\n" % self.progname
-    def print_command_list(self):
-        print "Available commands (use '%s help COMMAND' for more details):\n" \
-              % self.progname
-        cmds = self.ctable.keys()
-        cmds.sort()
-        indent = max(map(len, cmds))
-        for c in cmds:
-            h = self.ctable[c].short_help()
-            print "  %-*s   " % (indent, c),
-            self._print_wrapped(h, indent+6)
-    def print_command_help(self, cmd):
-        cmd = self.ctable[str(cmd)]
-        print 'usage: %s %s\n' % (self.progname, cmd.usage)
-        self._print_wrapped(cmd.help)
-        def print_opts(opts, self=self):
-            if not opts: return
-            flags = [o.repr_flags() for o in opts]
-            indent = max(map(len, flags))
-            for f,o in zip(flags, opts):
-                print "  %-*s :" % (indent, f),
-                self._print_wrapped(o.help, indent+5)
-        print '\nCommand options:'
-        print_opts(cmd.opts)
-        print '\nGlobal options:'
-        print_opts(self.gopts)
-
-    def print_version(self):
-        print self.version
-
-###############################################################################
-# Options and Commands description
-###############################################################################
-
-global_opts = [
-    Option("-F", "--force",
-           help="force operation even if the working copy is not clean, or "
-                "there are pending updates"),
-    Option("-n", "--dry-run",
-           help="don't actually change anything, just pretend; "
-                "implies --show-changes"),
-    Option("-s", "--show-changes",
-           help="show subversion commands that make changes"),
-    Option("-v", "--verbose",
-           help="verbose mode: output more information about progress"),
-    OptionArg("-u", "--username",
-              default=None,
-              help="invoke subversion commands with the supplied username"),
-    OptionArg("-p", "--password",
-              default=None,
-              help="invoke subversion commands with the supplied password"),
-    OptionArg("-c", "--config-dir", metavar="DIR",
-              default=None,
-              help="cause subversion commands to consult runtime config directory DIR"),
-]
-
-common_opts = [
-    Option("-b", "--bidirectional",
-           value=True,
-           default=False,
-           help="remove reflected and initialized revisions from merge candidates.  "
-                "Not required but may be specified to speed things up slightly"),
-    OptionArg("-f", "--commit-file", metavar="FILE",
-              default="svnmerge-commit-message.txt",
-              help="set the name of the file where the suggested log message "
-                   "is written to"),
-    Option("-M", "--record-only",
-           value=True,
-           default=False,
-           help="do not perform an actual merge of the changes, yet record "
-                "that a merge happened"),
-    OptionArg("-r", "--revision",
-              metavar="REVLIST",
-              default="",
-              help="specify a revision list, consisting of revision numbers "
-                   'and ranges separated by commas, e.g., "534,537-539,540"'),
-    OptionArg("-S", "--source", "--head",
-              default=None,
-              help="specify a merge source for this branch.  It can be either "
-                   "a working directory path, a full URL, or an unambiguous "
-                   "substring of one of the locations for which merge tracking was "
-                   "already initialized.  Needed only to disambiguate in case of "
-                   "multiple merge sources"),
-]
-
-command_table = {
-    "init": (action_init,
-    "init [OPTION...] [SOURCE]",
-    """Initialize merge tracking from SOURCE on the current working
-    directory.
-
-    If SOURCE is specified, all the revisions in SOURCE are marked as already
-    merged; if this is not correct, you can use --revision to specify the
-    exact list of already-merged revisions.
-
-    If SOURCE is omitted, then it is computed from the "svn cp" history of the
-    current working directory (searching back for the branch point); in this
-    case, %s assumes that no revision has been integrated yet since
-    the branch point (unless you teach it with --revision).""" % NAME,
-    [
-        "-f", "-r", # import common opts
-        OptionArg("-L", "--location-type",
-               dest="location-type",
-               default="path",
-               help="Use this type of location identifier in the new " +
-                    "Subversion properties; 'uuid', 'url', or 'path' " +
-                    "(default)"),
-    ]),
-
-    "avail": (action_avail,
-    "avail [OPTION...] [PATH]",
-    """Show unmerged revisions available for PATH as a revision list.
-    If --revision is given, the revisions shown will be limited to those
-    also specified in the option.
-
-    When svnmerge is used to bidirectionally merge changes between a
-    branch and its source, it is necessary to not merge the same changes
-    forth and back: e.g., if you committed a merge of a certain
-    revision of the branch into the source, you do not want that commit
-    to appear as available to merged into the branch (as the code
-    originated in the branch itself!).  svnmerge will automatically
-    exclude these so-called "reflected" revisions.""",
-    [
-        Option("-A", "--all",
-               dest="avail-showwhat",
-               value=["blocked", "avail"],
-               default=["avail"],
-               help="show both available and blocked revisions (aka ignore "
-                    "blocked revisions)"),
-        "-b",
-        Option("-B", "--blocked",
-               dest="avail-showwhat",
-               value=["blocked"],
-               help="show the blocked revision list (see '%s block')" % NAME),
-        Option("-d", "--diff",
-               dest="avail-display",
-               value="diffs",
-               default="revisions",
-               help="show corresponding diff instead of revision list"),
-        Option("--summarize",
-               dest="avail-display",
-               value="summarize",
-               help="show summarized diff instead of revision list"),
-        Option("-l", "--log",
-               dest="avail-display",
-               value="logs",
-               help="show corresponding log history instead of revision list"),
-        "-r",
-        "-S",
-    ]),
-
-    "integrated": (action_integrated,
-    "integrated [OPTION...] [PATH]",
-    """Show merged revisions available for PATH as a revision list.
-    If --revision is given, the revisions shown will be limited to
-    those also specified in the option.""",
-    [
-        Option("-d", "--diff",
-               dest="integrated-display",
-               value="diffs",
-               default="revisions",
-               help="show corresponding diff instead of revision list"),
-        Option("-l", "--log",
-               dest="integrated-display",
-               value="logs",
-               help="show corresponding log history instead of revision list"),
-        "-r",
-        "-S",
-    ]),
-
-    "rollback": (action_rollback,
-    "rollback [OPTION...] [PATH]",
-    """Rollback previously merged in revisions from PATH.  The
-    --revision option is mandatory, and specifies which revisions
-    will be rolled back.  Only the previously integrated merges
-    will be rolled back.
-
-    When manually rolling back changes, --record-only can be used to
-    instruct %s that a manual rollback of a certain revision
-    already happened, so that it can record it and offer that
-    revision for merge henceforth.""" % (NAME),
-    [
-        "-f", "-r", "-S", "-M", # import common opts
-    ]),
-
-    "merge": (action_merge,
-    "merge [OPTION...] [PATH]",
-    """Merge in revisions into PATH from its source. If --revision is omitted,
-    all the available revisions will be merged. In any case, already merged-in
-    revisions will NOT be merged again.
-
-    When svnmerge is used to bidirectionally merge changes between a
-    branch and its source, it is necessary to not merge the same changes
-    forth and back: e.g., if you committed a merge of a certain
-    revision of the branch into the source, you do not want that commit
-    to appear as available to merged into the branch (as the code
-    originated in the branch itself!).  svnmerge will automatically
-    exclude these so-called "reflected" revisions.
-
-    When manually merging changes across branches, --record-only can
-    be used to instruct %s that a manual merge of a certain revision
-    already happened, so that it can record it and not offer that
-    revision for merge anymore.  Conversely, when there are revisions
-    which should not be merged, use '%s block'.""" % (NAME, NAME),
-    [
-        "-b", "-f", "-r", "-S", "-M", # import common opts
-    ]),
-
-    "block": (action_block,
-    "block [OPTION...] [PATH]",
-    """Block revisions within PATH so that they disappear from the available
-    list. This is useful to hide revisions which will not be integrated.
-    If --revision is omitted, it defaults to all the available revisions.
-
-    Do not use this option to hide revisions that were manually merged
-    into the branch.  Instead, use '%s merge --record-only', which
-    records that a merge happened (as opposed to a merge which should
-    not happen).""" % NAME,
-    [
-        "-f", "-r", "-S", # import common opts
-    ]),
-
-    "unblock": (action_unblock,
-    "unblock [OPTION...] [PATH]",
-    """Revert the effect of '%s block'. If --revision is omitted, all the
-    blocked revisions are unblocked""" % NAME,
-    [
-        "-f", "-r", "-S", # import common opts
-    ]),
-
-    "uninit": (action_uninit,
-    "uninit [OPTION...] [PATH]",
-    """Remove merge tracking information from PATH. It cleans any kind of merge
-    tracking information (including the list of blocked revisions). If there
-    are multiple sources, use --source to indicate which source you want to
-    forget about.""",
-    [
-        "-f", "-S", # import common opts
-    ]),
-}
-
-
-def main(args):
-    global opts
-
-    # Initialize default options
-    opts = default_opts.copy()
-    logs.clear()
-
-    optsparser = CommandOpts(global_opts, common_opts, command_table,
-                             version="%%prog r%s\n  modified: %s\n\n"
-                                     "Copyright (C) 2004,2005 Awarix Inc.\n"
-                                     "Copyright (C) 2005, Giovanni Bajo"
-                                     % (__revision__, __date__))
-
-    cmd, args, state = optsparser.parse(args)
-    opts.update(state)
-
-    source = opts.get("source", None)
-    branch_dir = "."
-
-    if str(cmd) == "init":
-        if len(args) == 1:
-            source = args[0]
-        elif len(args) > 1:
-            optsparser.error("wrong number of parameters", cmd)
-    elif str(cmd) in command_table.keys():
-        if len(args) == 1:
-            branch_dir = args[0]
-        elif len(args) > 1:
-            optsparser.error("wrong number of parameters", cmd)
-    else:
-        assert False, "command not handled: %s" % cmd
-
-    # Validate branch_dir
-    if not is_wc(branch_dir):
-        if str(cmd) == "avail":
-            info = None
-            # it should be noted here that svn info does not error exit
-            # if an invalid target is specified to it (as is
-            # intuitive). so the try, except code is not absolutely
-            # necessary. but, I retain it to indicate the intuitive
-            # handling.
-            try:
-                info = get_svninfo(branch_dir)
-            except LaunchError:
-                pass
-            # test that we definitely targeted a subversion directory,
-            # mirroring the purpose of the earlier is_wc() call
-            if info is None or not info.has_key("Node Kind") or info["Node Kind"] != "directory":
-                error('"%s" is neither a valid URL, nor a working directory' % branch_dir)
-        else:
-            error('"%s" is not a subversion working directory' % branch_dir)
-
-    # give out some hints as to potential pathids
-    PathIdentifier.hint(branch_dir)
-    if source: PathIdentifier.hint(source)
-
-    # Extract the integration info for the branch_dir
-    branch_props = get_merge_props(branch_dir)
-
-    # Calculate source_url and source_path
-    report("calculate source path for the branch")
-    if not source:
-        if str(cmd) == "init":
-            cf_source, cf_rev, copy_committed_in_rev = get_copyfrom(branch_dir)
-            if not cf_source:
-                error('no copyfrom info available. '
-                      'Explicit source argument (-S/--source) required.')
-            opts["source-url"] = get_repo_root(branch_dir) + cf_source
-            opts["source-pathid"] = PathIdentifier.from_target(opts["source-url"])
-
-            if not opts["revision"]:
-                opts["revision"] = "1-" + cf_rev
-        else:
-            opts["source-pathid"] = get_default_source(branch_dir, branch_props)
-            opts["source-url"] = opts["source-pathid"].get_url()
-
-        assert is_pathid(opts["source-pathid"])
-        assert is_url(opts["source-url"])
-    else:
-        # The source was given as a command line argument and is stored in
-        # SOURCE.  Ensure that the specified source does not end in a /,
-        # otherwise it's easy to have the same source path listed more
-        # than once in the integrated version properties, with and without
-        # trailing /'s.
-        source = rstrip(source, "/")
-        if not is_wc(source) and not is_url(source):
-            # Check if it is a substring of a pathid recorded
-            # within the branch properties.
-            found = []
-            for pathid in branch_props.keys():
-                if pathid.match_substring(source):
-                    found.append(pathid)
-            if len(found) == 1:
-                # (assumes pathid is a repository-relative-path)
-                source_pathid = found[0]
-                source = source_pathid.get_url()
-            else:
-                error('"%s" is neither a valid URL, nor an unambiguous '
-                      'substring of a repository path, nor a working directory'
-                      % source)
-        else:
-            source_pathid = PathIdentifier.from_target(source)
-
-        source_pathid = PathIdentifier.from_target(source)
-        if str(cmd) == "init" and \
-               source_pathid == PathIdentifier.from_target("."):
-            error("cannot init integration source path '%s'\n"
-                  "Its repository-relative path must differ from the "
-                  "repository-relative path of the current directory."
-                  % source_pathid)
-        opts["source-pathid"] = source_pathid
-        opts["source-url"] = target_to_url(source)
-
-    # Sanity check source_url
-    assert is_url(opts["source-url"])
-    # SVN does not support non-normalized URL (and we should not
-    # have created them)
-    assert opts["source-url"].find("/..") < 0
-
-    report('source is "%s"' % opts["source-url"])
-
-    # Get previously merged revisions (except when command is init)
-    if str(cmd) != "init":
-        opts["merged-revs"] = merge_props_to_revision_set(branch_props,
-                                                          opts["source-pathid"])
-
-    # Perform the action
-    cmd(branch_dir, branch_props)
-
-
-if __name__ == "__main__":
-    try:
-        main(sys.argv[1:])
-    except LaunchError, (ret, cmd, out):
-        err_msg = "command execution failed (exit code: %d)\n" % ret
-        err_msg += cmd + "\n"
-        err_msg += "".join(out)
-        error(err_msg)
-    except KeyboardInterrupt:
-        # Avoid traceback on CTRL+C
-        print "aborted by user"
-        sys.exit(1)