Merge lp:~mbp/bzr/deprecation-old into lp:~bzr/bzr/trunk-old

[Martin Pool]

[Martin Pool (mbp)]

This deprecates and deletes old progress bar related code, and the weave.py main method.

[John A Meinel (jameinel)]

This seems okay, though I wonder if you deleted too many tests.

Usually when we deprecate something, we keep it under test, and add a "callDeprecated" or "applyDeprecated" wrap around its call. Which ensures that
1) it is still properly deprecated
2) And it still works the way it used to, until it is removed

Deleting the tests of things that were already deprecated is, of course, fine.

Anyway, just take another quick look and see if you really wanted to delete all of TestProgressTypes, and if so, go ahead and merge.

review: Approve

[Martin Pool (mbp)]

2009/6/8 John A Meinel <email address hidden>:
> Review: Approve
> This seems okay, though I wonder if you deleted too many tests.
>
> Usually when we deprecate something, we keep it under test, and add a "callDeprecated" or "applyDeprecated" wrap around its call. Which ensures that
> 1) it is still properly deprecated
> 2) And it still works the way it used to, until it is removed
>
> Deleting the tests of things that were already deprecated is, of course, fine.
>
> Anyway, just take another quick look and see if you really wanted to delete all of TestProgressTypes, and if so, go ahead and merge.

I wondered whether we should delete them too, however, keeping them
and getting them to catch warnings in all the right places was just
more work than seemed worthwhile for code that's going away. It also
makes it more clear where testing is needed for the new code. :)

The specific problem was that although it's easy to test that one
particular deprecated function works, there's no obvious way to say
"and it's ok if it calls other deprecated code in turn." Really we
also shouldn't issue warnings in that case even at run time. Some
fixes are possible but I didn't want to do them here.

--
Martin <http://launchpad.net/~mbp/>

=== modified file 'NEWS'
--- NEWS	2009-06-05 23:21:51 +0000
+++ NEWS	2009-06-06 02:35:12 +0000
@@ -103,13 +103,19 @@
 
 * Added osutils.parent_directories(). (Ian Clatworthy)
 
+* ``bzrlib.progress.ProgressBar``, ``ChildProgress``, ``DotsProgressBar``,
+  ``TTYProgressBar`` and ``child_progress`` are now deprecated; use
+  ``ui_factory.nested_progress_bar`` instead.  (Martin Pool)
+
 * TreeTransformBase no longer assumes that limbo is provided via disk.
   DiskTreeTransform now provides disk functionality.  (Aaron Bentley)
 
-
 Internals
 *********
 
+* Remove ``weave.py`` script for accessing internals of old weave-format
+  repositories.  (Martin Pool)
+
 Testing
 *******
 
 
=== modified file 'bzrlib/progress.py'
--- bzrlib/progress.py	2009-03-23 14:59:43 +0000
+++ bzrlib/progress.py	2009-06-06 02:35:12 +0000
@@ -36,11 +36,13 @@
     )
 from bzrlib.trace import mutter
 from bzrlib.symbol_versioning import (
+    deprecated_function,
     deprecated_in,
     deprecated_method,
     )
 
 
+# XXX: deprecated; can be removed when the ProgressBar factory is removed
 def _supports_progress(f):
     """Detect if we can use pretty progress bars on the output stream f.
 
@@ -140,6 +142,7 @@
         self.ui_factory.clear_term()
 
 
+@deprecated_function(deprecated_in((1, 16, 0)))
 def ProgressBar(to_file=None, **kwargs):
     """Abstract factory"""
     if to_file is None:
@@ -163,75 +166,6 @@
         return _progress_bar_types[requested_bar_type](to_file=to_file, **kwargs)
 
 
-class ProgressBarStack(object):
-    """A stack of progress bars.
-
-    This class is deprecated: instead, ask the ui factory for a new progress
-    task and finish it when it's done.
-    """
-
-    @deprecated_method(deprecated_in((1, 12, 0)))
-    def __init__(self,
-                 to_file=None,
-                 show_pct=False,
-                 show_spinner=True,
-                 show_eta=False,
-                 show_bar=True,
-                 show_count=True,
-                 to_messages_file=None,
-                 klass=None):
-        """Setup the stack with the parameters the progress bars should have."""
-        if to_file is None:
-            to_file = sys.stderr
-        if to_messages_file is None:
-            to_messages_file = sys.stdout
-        self._to_file = to_file
-        self._show_pct = show_pct
-        self._show_spinner = show_spinner
-        self._show_eta = show_eta
-        self._show_bar = show_bar
-        self._show_count = show_count
-        self._to_messages_file = to_messages_file
-        self._stack = []
-        self._klass = klass or ProgressBar
-
-    def top(self):
-        if len(self._stack) != 0:
-            return self._stack[-1]
-        else:
-            return None
-
-    def bottom(self):
-        if len(self._stack) != 0:
-            return self._stack[0]
-        else:
-            return None
-
-    def get_nested(self):
-        """Return a nested progress bar."""
-        if len(self._stack) == 0:
-            func = self._klass
-        else:
-            func = self.top().child_progress
-        new_bar = func(to_file=self._to_file,
-                       show_pct=self._show_pct,
-                       show_spinner=self._show_spinner,
-                       show_eta=self._show_eta,
-                       show_bar=self._show_bar,
-                       show_count=self._show_count,
-                       to_messages_file=self._to_messages_file,
-                       _stack=self)
-        self._stack.append(new_bar)
-        return new_bar
-
-    def return_pb(self, bar):
-        """Return bar after its been used."""
-        if bar is not self._stack[-1]:
-            warnings.warn("%r is not currently active" % (bar,))
-        else:
-            self._stack.pop()
-
-
 class _BaseProgressBar(object):
 
     def __init__(self,
@@ -278,6 +212,7 @@
         self.to_messages_file.write(fmt_string % args)
         self.to_messages_file.write('\n')
 
+    @deprecated_function(deprecated_in((1, 16, 0)))
     def child_progress(self, **kwargs):
         return ChildProgress(**kwargs)
 
@@ -309,6 +244,7 @@
 
 class DotsProgressBar(_BaseProgressBar):
 
+    @deprecated_function(deprecated_in((1, 16, 0)))
     def __init__(self, **kwargs):
         _BaseProgressBar.__init__(self, **kwargs)
         self.last_msg = None
@@ -335,8 +271,6 @@
         self.tick()
 
 
-
-
 class TTYProgressBar(_BaseProgressBar):
     """Progress bar display object.
 
@@ -359,7 +293,7 @@
     """
     SPIN_CHARS = r'/-\|'
 
-
+    @deprecated_function(deprecated_in((1, 16, 0)))
     def __init__(self, **kwargs):
         from bzrlib.osutils import terminal_width
         _BaseProgressBar.__init__(self, **kwargs)
@@ -519,11 +453,10 @@
         #self.to_file.flush()
 
 
-
-
 class ChildProgress(_BaseProgressBar):
     """A progress indicator that pushes its data to the parent"""
 
+    @deprecated_function(deprecated_in((1, 16, 0)))
     def __init__(self, _stack, **kwargs):
         _BaseProgressBar.__init__(self, _stack=_stack, **kwargs)
         self.parent = _stack.top()
@@ -565,23 +498,6 @@
         self.parent.note(*args, **kwargs)
 
 
-class InstrumentedProgress(TTYProgressBar):
-    """TTYProgress variant that tracks outcomes"""
-
-    def __init__(self, *args, **kwargs):
-        self.always_throttled = True
-        self.never_throttle = False
-        TTYProgressBar.__init__(self, *args, **kwargs)
-
-    def throttle(self, old_message):
-        if self.never_throttle:
-            result =  False
-        else:
-            result = TTYProgressBar.throttle(self, old_message)
-        if result is False:
-            self.always_throttled = False
-
-
 def str_tdelta(delt):
     if delt is None:
         return "-:--:--"
 
=== modified file 'bzrlib/tests/test_progress.py'
--- bzrlib/tests/test_progress.py	2009-03-23 14:59:43 +0000
+++ bzrlib/tests/test_progress.py	2009-06-06 02:35:12 +0000
@@ -18,29 +18,12 @@
 from StringIO import StringIO
 
 from bzrlib import errors
-from bzrlib.progress import (
-        DummyProgress,
-        ChildProgress,
-        TTYProgressBar,
-        DotsProgressBar,
-        ProgressBarStack,
-        InstrumentedProgress,
-        )
 from bzrlib.tests import TestCase
 from bzrlib.symbol_versioning import (
     deprecated_in,
     )
 
 
-class FakeStack:
-
-    def __init__(self, top):
-        self.__top = top
-
-    def top(self):
-        return self.__top
-
-
 class _TTYStringIO(StringIO):
     """A helper class which makes a StringIO look like a terminal"""
 
@@ -53,259 +36,3 @@
 
     def isatty(self):
         return False
-
-
-class TestProgress(TestCase):
-
-    def setUp(self):
-        TestCase.setUp(self)
-        q = DummyProgress()
-        self.top = ChildProgress(_stack=FakeStack(q))
-
-    def test_propogation(self):
-        self.top.update('foobles', 1, 2)
-        self.assertEqual(self.top.message, 'foobles')
-        self.assertEqual(self.top.current, 1)
-        self.assertEqual(self.top.total, 2)
-        self.assertEqual(self.top.child_fraction, 0)
-        child = ChildProgress(_stack=FakeStack(self.top))
-        child.update('baubles', 2, 4)
-        self.assertEqual(self.top.message, 'foobles')
-        self.assertEqual(self.top.current, 1)
-        self.assertEqual(self.top.total, 2)
-        self.assertEqual(self.top.child_fraction, 0.5)
-        grandchild = ChildProgress(_stack=FakeStack(child))
-        grandchild.update('barbells', 1, 2)
-        self.assertEqual(self.top.child_fraction, 0.625)
-        self.assertEqual(child.child_fraction, 0.5)
-        child.update('baubles', 3, 4)
-        self.assertEqual(child.child_fraction, 0)
-        self.assertEqual(self.top.child_fraction, 0.75)
-        grandchild.update('barbells', 1, 2)
-        self.assertEqual(self.top.child_fraction, 0.875)
-        grandchild.update('barbells', 2, 2)
-        self.assertEqual(self.top.child_fraction, 1)
-        child.update('baubles', 4, 4)
-        self.assertEqual(self.top.child_fraction, 1)
-        #test clamping
-        grandchild.update('barbells', 2, 2)
-        self.assertEqual(self.top.child_fraction, 1)
-
-    def test_implementations(self):
-        for implementation in (TTYProgressBar, DotsProgressBar,
-                               DummyProgress):
-            self.check_parent_handling(implementation)
-
-    def check_parent_handling(self, parentclass):
-        top = parentclass(to_file=StringIO())
-        top.update('foobles', 1, 2)
-        child = ChildProgress(_stack=FakeStack(top))
-        child.update('baubles', 4, 4)
-        top.update('lala', 2, 2)
-        child.update('baubles', 4, 4)
-
-    def test_stacking(self):
-        self.check_stack(TTYProgressBar, ChildProgress)
-        self.check_stack(DotsProgressBar, ChildProgress)
-        self.check_stack(DummyProgress, DummyProgress)
-
-    def check_stack(self, parent_class, child_class):
-        stack = self.applyDeprecated(
-            deprecated_in((1, 12, 0)),
-            ProgressBarStack,
-            klass=parent_class, to_file=StringIO())
-        parent = stack.get_nested()
-        try:
-            self.assertIs(parent.__class__, parent_class)
-            child = stack.get_nested()
-            try:
-                self.assertIs(child.__class__, child_class)
-            finally:
-                child.finished()
-        finally:
-            parent.finished()
-
-    def test_throttling(self):
-        pb = InstrumentedProgress(to_file=StringIO())
-        # instantaneous updates should be squelched
-        pb.update('me', 1, 1)
-        self.assertTrue(pb.always_throttled)
-        pb = InstrumentedProgress(to_file=StringIO())
-        # It's like an instant sleep(1)!
-        pb.start_time -= 1
-        # Updates after a second should not be squelched
-        pb.update('me', 1, 1)
-        self.assertFalse(pb.always_throttled)
-
-    def test_clear(self):
-        sio = StringIO()
-        pb = TTYProgressBar(to_file=sio, show_eta=False)
-        pb.width = 20 # Just make it easier to test
-        # This should not output anything
-        pb.clear()
-        # These two should not be displayed because
-        # of throttling
-        pb.update('foo', 1, 3)
-        pb.update('bar', 2, 3)
-        # So pb.clear() has nothing to do
-        pb.clear()
-
-        # Make sure the next update isn't throttled
-        pb.start_time -= 1
-        pb.update('baz', 3, 3)
-        pb.clear()
-
-        self.assertEqual('\r[=========] baz 3/3'
-                         '\r                   \r',
-                         sio.getvalue())
-
-    def test_no_eta(self):
-        # An old version of the progress bar would
-        # store every update if show_eta was false
-        # because the eta routine was where it was
-        # cleaned out
-        pb = InstrumentedProgress(to_file=StringIO(), show_eta=False)
-        # Just make sure this first few are throttled
-        pb.start_time += 5
-
-        # These messages are throttled, and don't contribute
-        for count in xrange(100):
-            pb.update('x', count, 300)
-        self.assertEqual(0, len(pb.last_updates))
-
-        # Unthrottle by time
-        pb.start_time -= 10
-
-        # These happen too fast, so only one gets through
-        for count in xrange(100):
-            pb.update('x', count+100, 200)
-        self.assertEqual(1, len(pb.last_updates))
-
-        pb.MIN_PAUSE = 0.0
-
-        # But all of these go through, don't let the
-        # last_update list grow without bound
-        for count in xrange(100):
-            pb.update('x', count+100, 200)
-
-        self.assertEqual(pb._max_last_updates, len(pb.last_updates))
-
-
-class TestProgressTypes(TestCase):
-    """Test that the right ProgressBar gets instantiated at the right time."""
-
-    def get_nested(self, outf, term, env_progress=None):
-        """Setup so that ProgressBar thinks we are in the supplied terminal."""
-        orig_term = os.environ.get('TERM')
-        orig_progress = os.environ.get('BZR_PROGRESS_BAR')
-        os.environ['TERM'] = term
-        if env_progress is not None:
-            os.environ['BZR_PROGRESS_BAR'] = env_progress
-        elif orig_progress is not None:
-            del os.environ['BZR_PROGRESS_BAR']
-
-        def reset():
-            if orig_term is None:
-                del os.environ['TERM']
-            else:
-                os.environ['TERM'] = orig_term
-            # We may have never created BZR_PROGRESS_BAR
-            # So we can't just delete like we can 'TERM' (which is always set)
-            if orig_progress is None:
-                if 'BZR_PROGRESS_BAR' in os.environ:
-                    del os.environ['BZR_PROGRESS_BAR']
-            else:
-                os.environ['BZR_PROGRESS_BAR'] = orig_progress
-
-        self.addCleanup(reset)
-
-        stack = self.applyDeprecated(
-            deprecated_in((1, 12, 0)),
-            ProgressBarStack,
-            to_file=outf)
-        pb = stack.get_nested()
-        pb.start_time -= 1 # Make sure it is ready to write
-        pb.width = 20 # And it is of reasonable size
-        return pb
-
-    def test_tty_progress(self):
-        # Make sure the ProgressBarStack thinks it is
-        # writing out to a terminal, and thus uses a TTYProgressBar
-        out = _TTYStringIO()
-        pb = self.get_nested(out, 'xterm')
-        self.assertIsInstance(pb, TTYProgressBar)
-        try:
-            pb.update('foo', 1, 2)
-            pb.update('bar', 2, 2)
-        finally:
-            pb.finished()
-
-        self.assertEqual('\r/ [====   ] foo 1/2'
-                         '\r- [=======] bar 2/2'
-                         '\r                   \r',
-                         out.getvalue())
-
-    def test_noninteractive_progress(self):
-        out = _NonTTYStringIO()
-        pb = self.get_nested(out, 'xterm')
-        self.assertIsInstance(pb, DummyProgress)
-        try:
-            pb.update('foo', 1, 2)
-            pb.update('bar', 2, 2)
-        finally:
-            pb.finished()
-        self.assertEqual('', out.getvalue())
-
-    def test_dots_progress(self):
-        # make sure we get the right progress bar when not on a terminal
-        out = _NonTTYStringIO()
-        pb = self.get_nested(out, 'xterm', 'dots')
-        self.assertIsInstance(pb, DotsProgressBar)
-        try:
-            pb.update('foo', 1, 2)
-            pb.update('bar', 2, 2)
-        finally:
-            pb.finished()
-        self.assertEqual('foo: .'
-                         '\nbar: .'
-                         '\n',
-                         out.getvalue())
-
-    def test_no_isatty_progress(self):
-        # Make sure ProgressBarStack handles a plain StringIO()
-        import cStringIO
-        out = cStringIO.StringIO()
-        pb = self.get_nested(out, 'xterm')
-        pb.finished()
-        self.assertIsInstance(pb, DummyProgress)
-
-    def test_dumb_progress(self):
-        # using a terminal that can't do cursor movement
-        out = _TTYStringIO()
-        pb = self.get_nested(out, 'dumb')
-        pb.finished()
-        self.assertIsInstance(pb, DummyProgress)
-
-    def test_progress_env_tty(self):
-        # The environ variable BZR_PROGRESS_BAR controls what type of
-        # progress bar we will get, even if it wouldn't usually be that type
-        import cStringIO
-
-        # Usually, this would be a DotsProgressBar
-        out = cStringIO.StringIO()
-        pb = self.get_nested(out, 'dumb', 'tty')
-        pb.finished()
-        # Even though we are not a tty, the env_var will override
-        self.assertIsInstance(pb, TTYProgressBar)
-
-    def test_progress_env_none(self):
-        # Even though we are in a valid tty, no progress
-        out = _TTYStringIO()
-        pb = self.get_nested(out, 'xterm', 'none')
-        pb.finished()
-        self.assertIsInstance(pb, DummyProgress)
-
-    def test_progress_env_invalid(self):
-        out = _TTYStringIO()
-        self.assertRaises(errors.InvalidProgressBarType, self.get_nested,
-            out, 'xterm', 'nonexistant')
 
=== modified file 'bzrlib/tests/test_ui.py'
--- bzrlib/tests/test_ui.py	2009-05-15 10:14:51 +0000
+++ bzrlib/tests/test_ui.py	2009-06-06 02:35:12 +0000
@@ -25,12 +25,6 @@
 
 import bzrlib
 import bzrlib.errors as errors
-from bzrlib.progress import (
-    DotsProgressBar,
-    ProgressBarStack,
-    ProgressTask,
-    TTYProgressBar,
-    )
 from bzrlib.symbol_versioning import (
     deprecated_in,
     )
@@ -164,33 +158,6 @@
         pb2.finished()
         pb1.finished()
 
-    def test_progress_stack(self):
-        # test the progress bar stack which the default text factory
-        # uses.
-        stderr = StringIO()
-        stdout = StringIO()
-        # make a stack, which accepts parameters like a pb.
-        stack = self.applyDeprecated(
-            deprecated_in((1, 12, 0)),
-            ProgressBarStack,
-            to_file=stderr, to_messages_file=stdout)
-        # but is not one
-        self.assertFalse(getattr(stack, 'note', False))
-        pb1 = stack.get_nested()
-        pb2 = stack.get_nested()
-        warnings, _ = self.callCatchWarnings(pb1.finished)
-        self.assertEqual(len(warnings), 1)
-        pb2.finished()
-        pb1.finished()
-        # the text ui factory never actually removes the stack once its setup.
-        # we need to be able to nest again correctly from here.
-        pb1 = stack.get_nested()
-        pb2 = stack.get_nested()
-        warnings, _ = self.callCatchWarnings(pb1.finished)
-        self.assertEqual(len(warnings), 1)
-        pb2.finished()
-        pb1.finished()
-
     def assert_get_bool_acceptance_of_user_input(self, factory):
         factory.stdin = StringIO("y\nyes with garbage\n"
                                  "yes\nn\nnot an answer\n"
 
=== modified file 'bzrlib/weave.py'
--- bzrlib/weave.py	2009-04-08 16:33:19 +0000
+++ bzrlib/weave.py	2009-06-06 02:35:12 +0000
@@ -1,6 +1,4 @@
-#! /usr/bin/python
-
-# Copyright (C) 2005 Canonical Ltd
+# Copyright (C) 2005, 2009 Canonical Ltd
 #
 # 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
@@ -1025,6 +1023,7 @@
         wr._add(name, lines, [wr._lookup(i) for i in combined_parents[name]])
     return wr
 
+
 def _reweave_parent_graphs(wa, wb):
     """Return combined parent ancestry for two weaves.
 
@@ -1035,206 +1034,3 @@
             p = combined.setdefault(name, set())
             p.update(map(weave._idx_to_name, weave._parents[idx]))
     return combined
-
-
-def weave_toc(w):
-    """Show the weave's table-of-contents"""
-    print '%6s %50s %10s %10s' % ('ver', 'name', 'sha1', 'parents')
-    for i in (6, 50, 10, 10):
-        print '-' * i,
-    print
-    for i in range(w.num_versions()):
-        sha1 = w._sha1s[i]
-        name = w._names[i]
-        parent_str = ' '.join(map(str, w._parents[i]))
-        print '%6d %-50.50s %10.10s %s' % (i, name, sha1, parent_str)
-
-
-
-def weave_stats(weave_file, pb):
-    from bzrlib.weavefile import read_weave
-
-    wf = file(weave_file, 'rb')
-    w = read_weave(wf)
-    # FIXME: doesn't work on pipes
-    weave_size = wf.tell()
-
-    total = 0
-    vers = len(w)
-    for i in range(vers):
-        pb.update('checking sizes', i, vers)
-        for origin, lineno, line in w._extract([i]):
-            total += len(line)
-
-    pb.clear()
-
-    print 'versions          %9d' % vers
-    print 'weave file        %9d bytes' % weave_size
-    print 'total contents    %9d bytes' % total
-    print 'compression ratio %9.2fx' % (float(total) / float(weave_size))
-    if vers:
-        avg = total/vers
-        print 'average size      %9d bytes' % avg
-        print 'relative size     %9.2fx' % (float(weave_size) / float(avg))
-
-
-def usage():
-    print """bzr weave tool
-
-Experimental tool for weave algorithm.
-
-usage:
-    weave init WEAVEFILE
-        Create an empty weave file
-    weave get WEAVEFILE VERSION
-        Write out specified version.
-    weave check WEAVEFILE
-        Check consistency of all versions.
-    weave toc WEAVEFILE
-        Display table of contents.
-    weave add WEAVEFILE NAME [BASE...] < NEWTEXT
-        Add NEWTEXT, with specified parent versions.
-    weave annotate WEAVEFILE VERSION
-        Display origin of each line.
-    weave merge WEAVEFILE VERSION1 VERSION2 > OUT
-        Auto-merge two versions and display conflicts.
-    weave diff WEAVEFILE VERSION1 VERSION2
-        Show differences between two versions.
-
-example:
-
-    % weave init foo.weave
-    % vi foo.txt
-    % weave add foo.weave ver0 < foo.txt
-    added version 0
-
-    (create updated version)
-    % vi foo.txt
-    % weave get foo.weave 0 | diff -u - foo.txt
-    % weave add foo.weave ver1 0 < foo.txt
-    added version 1
-
-    % weave get foo.weave 0 > foo.txt       (create forked version)
-    % vi foo.txt
-    % weave add foo.weave ver2 0 < foo.txt
-    added version 2
-
-    % weave merge foo.weave 1 2 > foo.txt   (merge them)
-    % vi foo.txt                            (resolve conflicts)
-    % weave add foo.weave merged 1 2 < foo.txt     (commit merged version)
-
-"""
-
-
-
-def main(argv):
-    import sys
-    import os
-    try:
-        import bzrlib
-    except ImportError:
-        # in case we're run directly from the subdirectory
-        sys.path.append('..')
-        import bzrlib
-    from bzrlib.weavefile import write_weave, read_weave
-    from bzrlib.progress import ProgressBar
-
-    try:
-        import psyco
-        psyco.full()
-    except ImportError:
-        pass
-
-    if len(argv) < 2:
-        usage()
-        return 0
-
-    cmd = argv[1]
-
-    def readit():
-        return read_weave(file(argv[2], 'rb'))
-
-    if cmd == 'help':
-        usage()
-    elif cmd == 'add':
-        w = readit()
-        # at the moment, based on everything in the file
-        name = argv[3]
-        parents = map(int, argv[4:])
-        lines = sys.stdin.readlines()
-        ver = w.add(name, parents, lines)
-        write_weave(w, file(argv[2], 'wb'))
-        print 'added version %r %d' % (name, ver)
-    elif cmd == 'init':
-        fn = argv[2]
-        if os.path.exists(fn):
-            raise IOError("file exists")
-        w = Weave()
-        write_weave(w, file(fn, 'wb'))
-    elif cmd == 'get': # get one version
-        w = readit()
-        sys.stdout.writelines(w.get_iter(int(argv[3])))
-
-    elif cmd == 'diff':
-        w = readit()
-        fn = argv[2]
-        v1, v2 = map(int, argv[3:5])
-        lines1 = w.get(v1)
-        lines2 = w.get(v2)
-        diff_gen = bzrlib.patiencediff.unified_diff(lines1, lines2,
-                                '%s version %d' % (fn, v1),
-                                '%s version %d' % (fn, v2))
-        sys.stdout.writelines(diff_gen)
-
-    elif cmd == 'annotate':
-        w = readit()
-        # newline is added to all lines regardless; too hard to get
-        # reasonable formatting otherwise
-        lasto = None
-        for origin, text in w.annotate(int(argv[3])):
-            text = text.rstrip('\r\n')
-            if origin == lasto:
-                print '      | %s' % (text)
-            else:
-                print '%5d | %s' % (origin, text)
-                lasto = origin
-
-    elif cmd == 'toc':
-        weave_toc(readit())
-
-    elif cmd == 'stats':
-        weave_stats(argv[2], ProgressBar())
-
-    elif cmd == 'check':
-        w = readit()
-        pb = ProgressBar()
-        w.check(pb)
-        pb.clear()
-        print '%d versions ok' % w.num_versions()
-
-    elif cmd == 'inclusions':
-        w = readit()
-        print ' '.join(map(str, w.inclusions([int(argv[3])])))
-
-    elif cmd == 'parents':
-        w = readit()
-        print ' '.join(map(str, w._parents[int(argv[3])]))
-
-    elif cmd == 'plan-merge':
-        # replaced by 'bzr weave-plan-merge'
-        w = readit()
-        for state, line in w.plan_merge(int(argv[3]), int(argv[4])):
-            if line:
-                print '%14s | %s' % (state, line),
-    elif cmd == 'merge':
-        # replaced by 'bzr weave-merge-text'
-        w = readit()
-        p = w.plan_merge(int(argv[3]), int(argv[4]))
-        sys.stdout.writelines(w.weave_merge(p))
-    else:
-        raise ValueError('unknown command %r' % cmd)
-
-
-if __name__ == '__main__':
-    import sys
-    sys.exit(main(sys.argv))