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extensions: register functions always at loading extension (issue5601)...
extensions: register functions always at loading extension (issue5601) Before this patch, functions defined in extensions are registered via extra loaders only in _dispatch(). Therefore, loading extensions in other code paths like below omits registration of functions. - WSGI service - operation across repositories (e.g. subrepo) - test-duplicateoptions.py, using extensions.loadall() directly To register functions always at loading new extension, this patch moves implementation for extra loading from dispatch._dispatch() to extensions.loadall(). AFAIK, only commands module causes cyclic dependency between extensions module, but this patch imports all related modules just before extra loading in loadall(), in order to centralize them. This patch makes extensions.py depend on many other modules, even though extensions.py itself doesn't. It should be avoided if possible, but I don't have any better idea. Some other places like below aren't reasonable for extra loading, IMHO. - specific function in newly added module: existing callers of extensions.loadall() should invoke it, too - hg.repository() or so: no-repo commands aren't covered by this. BTW, this patch removes _loaded.add(name) on relocation, because dispatch._loaded is used only for extraloaders (for similar reason, "exts" variable is removed, too).
Gregory Szorc - - Load All Authors

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test-simplemerge.py
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# Copyright (C) 2004, 2005 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
# 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, see <http://www.gnu.org/licenses/>.
from __future__ import absolute_import
import unittest
from mercurial import (
error,
simplemerge,
util,
)
TestCase = unittest.TestCase
# bzr compatible interface, for the tests
class Merge3(simplemerge.Merge3Text):
"""3-way merge of texts.
Given BASE, OTHER, THIS, tries to produce a combined text
incorporating the changes from both BASE->OTHER and BASE->THIS.
All three will typically be sequences of lines."""
def __init__(self, base, a, b):
basetext = '\n'.join([i.strip('\n') for i in base] + [''])
atext = '\n'.join([i.strip('\n') for i in a] + [''])
btext = '\n'.join([i.strip('\n') for i in b] + [''])
if util.binary(basetext) or util.binary(atext) or util.binary(btext):
raise error.Abort("don't know how to merge binary files")
simplemerge.Merge3Text.__init__(self, basetext, atext, btext,
base, a, b)
CantReprocessAndShowBase = simplemerge.CantReprocessAndShowBase
def split_lines(t):
return util.stringio(t).readlines()
############################################################
# test case data from the gnu diffutils manual
# common base
TZU = split_lines(""" The Nameless is the origin of Heaven and Earth;
The named is the mother of all things.
Therefore let there always be non-being,
so we may see their subtlety,
And let there always be being,
so we may see their outcome.
The two are the same,
But after they are produced,
they have different names.
They both may be called deep and profound.
Deeper and more profound,
The door of all subtleties!
""")
LAO = split_lines(""" The Way that can be told of is not the eternal Way;
The name that can be named is not the eternal name.
The Nameless is the origin of Heaven and Earth;
The Named is the mother of all things.
Therefore let there always be non-being,
so we may see their subtlety,
And let there always be being,
so we may see their outcome.
The two are the same,
But after they are produced,
they have different names.
""")
TAO = split_lines(""" The Way that can be told of is not the eternal Way;
The name that can be named is not the eternal name.
The Nameless is the origin of Heaven and Earth;
The named is the mother of all things.
Therefore let there always be non-being,
so we may see their subtlety,
And let there always be being,
so we may see their result.
The two are the same,
But after they are produced,
they have different names.
-- The Way of Lao-Tzu, tr. Wing-tsit Chan
""")
MERGED_RESULT = split_lines("""\
The Way that can be told of is not the eternal Way;
The name that can be named is not the eternal name.
The Nameless is the origin of Heaven and Earth;
The Named is the mother of all things.
Therefore let there always be non-being,
so we may see their subtlety,
And let there always be being,
so we may see their result.
The two are the same,
But after they are produced,
they have different names.
<<<<<<< LAO
=======
-- The Way of Lao-Tzu, tr. Wing-tsit Chan
>>>>>>> TAO
""")
class TestMerge3(TestCase):
def log(self, msg):
pass
def test_no_changes(self):
"""No conflicts because nothing changed"""
m3 = Merge3(['aaa', 'bbb'],
['aaa', 'bbb'],
['aaa', 'bbb'])
self.assertEquals(m3.find_unconflicted(),
[(0, 2)])
self.assertEquals(list(m3.find_sync_regions()),
[(0, 2,
0, 2,
0, 2),
(2, 2, 2, 2, 2, 2)])
self.assertEquals(list(m3.merge_regions()),
[('unchanged', 0, 2)])
self.assertEquals(list(m3.merge_groups()),
[('unchanged', ['aaa', 'bbb'])])
def test_front_insert(self):
m3 = Merge3(['zz'],
['aaa', 'bbb', 'zz'],
['zz'])
# todo: should use a sentinel at end as from get_matching_blocks
# to match without zz
self.assertEquals(list(m3.find_sync_regions()),
[(0, 1, 2, 3, 0, 1),
(1, 1, 3, 3, 1, 1)])
self.assertEquals(list(m3.merge_regions()),
[('a', 0, 2),
('unchanged', 0, 1)])
self.assertEquals(list(m3.merge_groups()),
[('a', ['aaa', 'bbb']),
('unchanged', ['zz'])])
def test_null_insert(self):
m3 = Merge3([],
['aaa', 'bbb'],
[])
# todo: should use a sentinel at end as from get_matching_blocks
# to match without zz
self.assertEquals(list(m3.find_sync_regions()),
[(0, 0, 2, 2, 0, 0)])
self.assertEquals(list(m3.merge_regions()),
[('a', 0, 2)])
self.assertEquals(list(m3.merge_lines()),
['aaa', 'bbb'])
def test_no_conflicts(self):
"""No conflicts because only one side changed"""
m3 = Merge3(['aaa', 'bbb'],
['aaa', '111', 'bbb'],
['aaa', 'bbb'])
self.assertEquals(m3.find_unconflicted(),
[(0, 1), (1, 2)])
self.assertEquals(list(m3.find_sync_regions()),
[(0, 1, 0, 1, 0, 1),
(1, 2, 2, 3, 1, 2),
(2, 2, 3, 3, 2, 2)])
self.assertEquals(list(m3.merge_regions()),
[('unchanged', 0, 1),
('a', 1, 2),
('unchanged', 1, 2)])
def test_append_a(self):
m3 = Merge3(['aaa\n', 'bbb\n'],
['aaa\n', 'bbb\n', '222\n'],
['aaa\n', 'bbb\n'])
self.assertEquals(''.join(m3.merge_lines()),
'aaa\nbbb\n222\n')
def test_append_b(self):
m3 = Merge3(['aaa\n', 'bbb\n'],
['aaa\n', 'bbb\n'],
['aaa\n', 'bbb\n', '222\n'])
self.assertEquals(''.join(m3.merge_lines()),
'aaa\nbbb\n222\n')
def test_append_agreement(self):
m3 = Merge3(['aaa\n', 'bbb\n'],
['aaa\n', 'bbb\n', '222\n'],
['aaa\n', 'bbb\n', '222\n'])
self.assertEquals(''.join(m3.merge_lines()),
'aaa\nbbb\n222\n')
def test_append_clash(self):
m3 = Merge3(['aaa\n', 'bbb\n'],
['aaa\n', 'bbb\n', '222\n'],
['aaa\n', 'bbb\n', '333\n'])
ml = m3.merge_lines(name_a='a',
name_b='b',
start_marker='<<',
mid_marker='--',
end_marker='>>')
self.assertEquals(''.join(ml),
'aaa\n'
'bbb\n'
'<< a\n'
'222\n'
'--\n'
'333\n'
'>> b\n'
)
def test_insert_agreement(self):
m3 = Merge3(['aaa\n', 'bbb\n'],
['aaa\n', '222\n', 'bbb\n'],
['aaa\n', '222\n', 'bbb\n'])
ml = m3.merge_lines(name_a='a',
name_b='b',
start_marker='<<',
mid_marker='--',
end_marker='>>')
self.assertEquals(''.join(ml), 'aaa\n222\nbbb\n')
def test_insert_clash(self):
"""Both try to insert lines in the same place."""
m3 = Merge3(['aaa\n', 'bbb\n'],
['aaa\n', '111\n', 'bbb\n'],
['aaa\n', '222\n', 'bbb\n'])
self.assertEquals(m3.find_unconflicted(),
[(0, 1), (1, 2)])
self.assertEquals(list(m3.find_sync_regions()),
[(0, 1, 0, 1, 0, 1),
(1, 2, 2, 3, 2, 3),
(2, 2, 3, 3, 3, 3)])
self.assertEquals(list(m3.merge_regions()),
[('unchanged', 0, 1),
('conflict', 1, 1, 1, 2, 1, 2),
('unchanged', 1, 2)])
self.assertEquals(list(m3.merge_groups()),
[('unchanged', ['aaa\n']),
('conflict', [], ['111\n'], ['222\n']),
('unchanged', ['bbb\n']),
])
ml = m3.merge_lines(name_a='a',
name_b='b',
start_marker='<<',
mid_marker='--',
end_marker='>>')
self.assertEquals(''.join(ml),
'''aaa
<< a
111
--
222
>> b
bbb
''')
def test_replace_clash(self):
"""Both try to insert lines in the same place."""
m3 = Merge3(['aaa', '000', 'bbb'],
['aaa', '111', 'bbb'],
['aaa', '222', 'bbb'])
self.assertEquals(m3.find_unconflicted(),
[(0, 1), (2, 3)])
self.assertEquals(list(m3.find_sync_regions()),
[(0, 1, 0, 1, 0, 1),
(2, 3, 2, 3, 2, 3),
(3, 3, 3, 3, 3, 3)])
def test_replace_multi(self):
"""Replacement with regions of different size."""
m3 = Merge3(['aaa', '000', '000', 'bbb'],
['aaa', '111', '111', '111', 'bbb'],
['aaa', '222', '222', '222', '222', 'bbb'])
self.assertEquals(m3.find_unconflicted(),
[(0, 1), (3, 4)])
self.assertEquals(list(m3.find_sync_regions()),
[(0, 1, 0, 1, 0, 1),
(3, 4, 4, 5, 5, 6),
(4, 4, 5, 5, 6, 6)])
def test_merge_poem(self):
"""Test case from diff3 manual"""
m3 = Merge3(TZU, LAO, TAO)
ml = list(m3.merge_lines('LAO', 'TAO'))
self.log('merge result:')
self.log(''.join(ml))
self.assertEquals(ml, MERGED_RESULT)
def test_binary(self):
with self.assertRaises(error.Abort):
Merge3(['\x00'], ['a'], ['b'])
def test_dos_text(self):
base_text = 'a\r\n'
this_text = 'b\r\n'
other_text = 'c\r\n'
m3 = Merge3(base_text.splitlines(True), other_text.splitlines(True),
this_text.splitlines(True))
m_lines = m3.merge_lines('OTHER', 'THIS')
self.assertEqual('<<<<<<< OTHER\r\nc\r\n=======\r\nb\r\n'
'>>>>>>> THIS\r\n'.splitlines(True), list(m_lines))
def test_mac_text(self):
base_text = 'a\r'
this_text = 'b\r'
other_text = 'c\r'
m3 = Merge3(base_text.splitlines(True), other_text.splitlines(True),
this_text.splitlines(True))
m_lines = m3.merge_lines('OTHER', 'THIS')
self.assertEqual('<<<<<<< OTHER\rc\r=======\rb\r'
'>>>>>>> THIS\r'.splitlines(True), list(m_lines))
if __name__ == '__main__':
# hide the timer
import time
orig = time.time
try:
time.time = lambda: 0
unittest.main()
finally:
time.time = orig