mercurial/simplemerge.py
author Pierre-Yves David <pierre-yves.david@fb.com>
Thu, 08 Oct 2015 12:55:45 -0700
changeset 26587 56b2bcea2529
parent 26223 ed12abab068e
child 26614 ef1eb6df7071
permissions -rw-r--r--
error: get Abort from 'error' instead of 'util' The home of 'Abort' is 'error' not 'util' however, a lot of code seems to be confused about that and gives all the credit to 'util' instead of the hardworking 'error'. In a spirit of equity, we break the cycle of injustice and give back to 'error' the respect it deserves. And screw that 'util' poser. For great justice.
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# Copyright (C) 2004, 2005 Canonical Ltd
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, see <http://www.gnu.org/licenses/>.
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# mbp: "you know that thing where cvs gives you conflict markers?"
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# s: "i hate that."
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from __future__ import absolute_import
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import os
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import sys
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from .i18n import _
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from . import (
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    error,
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    mdiff,
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    scmutil,
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    util,
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)
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class CantReprocessAndShowBase(Exception):
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    pass
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def intersect(ra, rb):
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    """Given two ranges return the range where they intersect or None.
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    >>> intersect((0, 10), (0, 6))
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    (0, 6)
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    >>> intersect((0, 10), (5, 15))
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    (5, 10)
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    >>> intersect((0, 10), (10, 15))
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    >>> intersect((0, 9), (10, 15))
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    >>> intersect((0, 9), (7, 15))
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    (7, 9)
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    """
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    assert ra[0] <= ra[1]
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    assert rb[0] <= rb[1]
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    sa = max(ra[0], rb[0])
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    sb = min(ra[1], rb[1])
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    if sa < sb:
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        return sa, sb
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    else:
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        return None
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def compare_range(a, astart, aend, b, bstart, bend):
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    """Compare a[astart:aend] == b[bstart:bend], without slicing.
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    """
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    if (aend - astart) != (bend - bstart):
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        return False
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    for ia, ib in zip(xrange(astart, aend), xrange(bstart, bend)):
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        if a[ia] != b[ib]:
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            return False
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    else:
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        return True
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class Merge3Text(object):
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    """3-way merge of texts.
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    Given strings BASE, OTHER, THIS, tries to produce a combined text
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    incorporating the changes from both BASE->OTHER and BASE->THIS."""
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    def __init__(self, basetext, atext, btext, base=None, a=None, b=None):
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        self.basetext = basetext
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        self.atext = atext
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        self.btext = btext
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        if base is None:
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            base = mdiff.splitnewlines(basetext)
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        if a is None:
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            a = mdiff.splitnewlines(atext)
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        if b is None:
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            b = mdiff.splitnewlines(btext)
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        self.base = base
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        self.a = a
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        self.b = b
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    def merge_lines(self,
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                    name_a=None,
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                    name_b=None,
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                    name_base=None,
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                    start_marker='<<<<<<<',
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                    mid_marker='=======',
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                    end_marker='>>>>>>>',
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                    base_marker=None,
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                    localorother=None):
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        """Return merge in cvs-like form.
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        """
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        self.conflicts = False
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        newline = '\n'
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        if len(self.a) > 0:
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            if self.a[0].endswith('\r\n'):
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                newline = '\r\n'
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            elif self.a[0].endswith('\r'):
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                newline = '\r'
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        if name_a and start_marker:
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            start_marker = start_marker + ' ' + name_a
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        if name_b and end_marker:
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            end_marker = end_marker + ' ' + name_b
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        if name_base and base_marker:
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            base_marker = base_marker + ' ' + name_base
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        merge_regions = self.merge_regions()
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        for t in merge_regions:
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            what = t[0]
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            if what == 'unchanged':
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                for i in range(t[1], t[2]):
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                    yield self.base[i]
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            elif what == 'a' or what == 'same':
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                for i in range(t[1], t[2]):
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                    yield self.a[i]
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            elif what == 'b':
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                for i in range(t[1], t[2]):
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                    yield self.b[i]
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            elif what == 'conflict':
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                if localorother == 'local':
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                    for i in range(t[3], t[4]):
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                        yield self.a[i]
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                elif localorother == 'other':
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   128
                    for i in range(t[5], t[6]):
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                        yield self.b[i]
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   130
                else:
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                    self.conflicts = True
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                    if start_marker is not None:
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                        yield start_marker + newline
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   134
                    for i in range(t[3], t[4]):
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   135
                        yield self.a[i]
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   136
                    if base_marker is not None:
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   137
                        yield base_marker + newline
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parents: 26069
diff changeset
   138
                        for i in range(t[1], t[2]):
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   139
                            yield self.base[i]
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   140
                    if mid_marker is not None:
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                        yield mid_marker + newline
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   142
                    for i in range(t[5], t[6]):
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   143
                        yield self.b[i]
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   144
                    if end_marker is not None:
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                        yield end_marker + newline
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   146
            else:
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                raise ValueError(what)
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    def merge_groups(self):
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   150
        """Yield sequence of line groups.  Each one is a tuple:
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   151
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        'unchanged', lines
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             Lines unchanged from base
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   154
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   155
        'a', lines
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             Lines taken from a
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   157
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   158
        'same', lines
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   159
             Lines taken from a (and equal to b)
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   160
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   161
        'b', lines
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             Lines taken from b
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   163
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   164
        'conflict', base_lines, a_lines, b_lines
465b9ea02868 Import 3-way merge code from bzr
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   165
             Lines from base were changed to either a or b and conflict.
465b9ea02868 Import 3-way merge code from bzr
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        """
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   167
        for t in self.merge_regions():
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   168
            what = t[0]
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   169
            if what == 'unchanged':
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                yield what, self.base[t[1]:t[2]]
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4cdaf1adafc8 backout most of 4f8067c94729
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parents: 12387
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   171
            elif what == 'a' or what == 'same':
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                yield what, self.a[t[1]:t[2]]
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   173
            elif what == 'b':
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   174
                yield what, self.b[t[1]:t[2]]
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   175
            elif what == 'conflict':
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   176
                yield (what,
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                       self.base[t[1]:t[2]],
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                       self.a[t[3]:t[4]],
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   179
                       self.b[t[5]:t[6]])
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   180
            else:
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   181
                raise ValueError(what)
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   182
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   183
    def merge_regions(self):
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   184
        """Return sequences of matching and conflicting regions.
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   185
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        This returns tuples, where the first value says what kind we
465b9ea02868 Import 3-way merge code from bzr
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   187
        have:
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   188
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   189
        'unchanged', start, end
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   190
             Take a region of base[start:end]
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   191
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   192
        'same', astart, aend
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   193
             b and a are different from base but give the same result
465b9ea02868 Import 3-way merge code from bzr
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parents:
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   194
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   195
        'a', start, end
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   196
             Non-clashing insertion from a[start:end]
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   197
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   198
        Method is as follows:
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   199
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   200
        The two sequences align only on regions which match the base
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48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14329
diff changeset
   201
        and both descendants.  These are found by doing a two-way diff
4362
465b9ea02868 Import 3-way merge code from bzr
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   202
        of each one against the base, and then finding the
465b9ea02868 Import 3-way merge code from bzr
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   203
        intersections between those regions.  These "sync regions"
465b9ea02868 Import 3-way merge code from bzr
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   204
        are by definition unchanged in both and easily dealt with.
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   205
465b9ea02868 Import 3-way merge code from bzr
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   206
        The regions in between can be in any of three cases:
465b9ea02868 Import 3-way merge code from bzr
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   207
        conflicted, or changed on only one side.
465b9ea02868 Import 3-way merge code from bzr
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   208
        """
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   209
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   210
        # section a[0:ia] has been disposed of, etc
465b9ea02868 Import 3-way merge code from bzr
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   211
        iz = ia = ib = 0
5081
ea7b982b6c08 Remove trailing spaces
Thomas Arendsen Hein <thomas@intevation.de>
parents: 4408
diff changeset
   212
16683
525fdb738975 cleanup: eradicate long lines
Brodie Rao <brodie@sf.io>
parents: 15782
diff changeset
   213
        for region in self.find_sync_regions():
525fdb738975 cleanup: eradicate long lines
Brodie Rao <brodie@sf.io>
parents: 15782
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   214
            zmatch, zend, amatch, aend, bmatch, bend = region
4362
465b9ea02868 Import 3-way merge code from bzr
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parents:
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   215
            #print 'match base [%d:%d]' % (zmatch, zend)
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parents: 4408
diff changeset
   216
4362
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   217
            matchlen = zend - zmatch
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   218
            assert matchlen >= 0
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   219
            assert matchlen == (aend - amatch)
465b9ea02868 Import 3-way merge code from bzr
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parents:
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   220
            assert matchlen == (bend - bmatch)
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ea7b982b6c08 Remove trailing spaces
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parents: 4408
diff changeset
   221
4362
465b9ea02868 Import 3-way merge code from bzr
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   222
            len_a = amatch - ia
465b9ea02868 Import 3-way merge code from bzr
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   223
            len_b = bmatch - ib
465b9ea02868 Import 3-way merge code from bzr
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parents:
diff changeset
   224
            len_base = zmatch - iz
465b9ea02868 Import 3-way merge code from bzr
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   225
            assert len_a >= 0
465b9ea02868 Import 3-way merge code from bzr
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parents:
diff changeset
   226
            assert len_b >= 0
465b9ea02868 Import 3-way merge code from bzr
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   227
            assert len_base >= 0
465b9ea02868 Import 3-way merge code from bzr
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parents:
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   228
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   229
            #print 'unmatched a=%d, b=%d' % (len_a, len_b)
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parents:
diff changeset
   230
465b9ea02868 Import 3-way merge code from bzr
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diff changeset
   231
            if len_a or len_b:
465b9ea02868 Import 3-way merge code from bzr
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diff changeset
   232
                # try to avoid actually slicing the lists
465b9ea02868 Import 3-way merge code from bzr
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parents:
diff changeset
   233
                equal_a = compare_range(self.a, ia, amatch,
465b9ea02868 Import 3-way merge code from bzr
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
diff changeset
   234
                                        self.base, iz, zmatch)
465b9ea02868 Import 3-way merge code from bzr
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
diff changeset
   235
                equal_b = compare_range(self.b, ib, bmatch,
465b9ea02868 Import 3-way merge code from bzr
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
diff changeset
   236
                                        self.base, iz, zmatch)
465b9ea02868 Import 3-way merge code from bzr
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
diff changeset
   237
                same = compare_range(self.a, ia, amatch,
465b9ea02868 Import 3-way merge code from bzr
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
diff changeset
   238
                                     self.b, ib, bmatch)
465b9ea02868 Import 3-way merge code from bzr
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parents:
diff changeset
   239
465b9ea02868 Import 3-way merge code from bzr
Alexis S. L. Carvalho <alexis@cecm.usp.br>
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   240
                if same:
465b9ea02868 Import 3-way merge code from bzr
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diff changeset
   241
                    yield 'same', ia, amatch
465b9ea02868 Import 3-way merge code from bzr
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parents:
diff changeset
   242
                elif equal_a and not equal_b:
465b9ea02868 Import 3-way merge code from bzr
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parents:
diff changeset
   243
                    yield 'b', ib, bmatch
465b9ea02868 Import 3-way merge code from bzr
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parents:
diff changeset
   244
                elif equal_b and not equal_a:
465b9ea02868 Import 3-way merge code from bzr
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parents:
diff changeset
   245
                    yield 'a', ia, amatch
465b9ea02868 Import 3-way merge code from bzr
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
diff changeset
   246
                elif not equal_a and not equal_b:
465b9ea02868 Import 3-way merge code from bzr
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
diff changeset
   247
                    yield 'conflict', iz, zmatch, ia, amatch, ib, bmatch
465b9ea02868 Import 3-way merge code from bzr
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parents:
diff changeset
   248
                else:
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parents:
diff changeset
   249
                    raise AssertionError("can't handle a=b=base but unmatched")
465b9ea02868 Import 3-way merge code from bzr
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parents:
diff changeset
   250
465b9ea02868 Import 3-way merge code from bzr
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
diff changeset
   251
                ia = amatch
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   252
                ib = bmatch
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Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
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   253
            iz = zmatch
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parents:
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   254
465b9ea02868 Import 3-way merge code from bzr
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parents:
diff changeset
   255
            # if the same part of the base was deleted on both sides
465b9ea02868 Import 3-way merge code from bzr
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parents:
diff changeset
   256
            # that's OK, we can just skip it.
465b9ea02868 Import 3-way merge code from bzr
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parents:
diff changeset
   257
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            if matchlen > 0:
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                assert ia == amatch
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                assert ib == bmatch
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                assert iz == zmatch
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                yield 'unchanged', zmatch, zend
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                iz = zend
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                ia = aend
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                ib = bend
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    def find_sync_regions(self):
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        """Return a list of sync regions, where both descendants match the base.
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        Generates a list of (base1, base2, a1, a2, b1, b2).  There is
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        always a zero-length sync region at the end of all the files.
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        """
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        ia = ib = 0
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        amatches = mdiff.get_matching_blocks(self.basetext, self.atext)
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        bmatches = mdiff.get_matching_blocks(self.basetext, self.btext)
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        len_a = len(amatches)
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        len_b = len(bmatches)
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        sl = []
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        while ia < len_a and ib < len_b:
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            abase, amatch, alen = amatches[ia]
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            bbase, bmatch, blen = bmatches[ib]
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            # there is an unconflicted block at i; how long does it
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            # extend?  until whichever one ends earlier.
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            i = intersect((abase, abase + alen), (bbase, bbase + blen))
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            if i:
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                intbase = i[0]
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                intend = i[1]
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                intlen = intend - intbase
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                # found a match of base[i[0], i[1]]; this may be less than
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                # the region that matches in either one
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                assert intlen <= alen
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                assert intlen <= blen
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                assert abase <= intbase
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                assert bbase <= intbase
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                asub = amatch + (intbase - abase)
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                bsub = bmatch + (intbase - bbase)
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                aend = asub + intlen
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                bend = bsub + intlen
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                assert self.base[intbase:intend] == self.a[asub:aend], \
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                       (self.base[intbase:intend], self.a[asub:aend])
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                assert self.base[intbase:intend] == self.b[bsub:bend]
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                sl.append((intbase, intend,
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                           asub, aend,
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                           bsub, bend))
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            # advance whichever one ends first in the base text
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   318
            if (abase + alen) < (bbase + blen):
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                ia += 1
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   320
            else:
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                ib += 1
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        intbase = len(self.base)
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        abase = len(self.a)
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        bbase = len(self.b)
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   326
        sl.append((intbase, intbase, abase, abase, bbase, bbase))
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   328
        return sl
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   330
    def find_unconflicted(self):
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        """Return a list of ranges in base that are not conflicted."""
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   332
        am = mdiff.get_matching_blocks(self.basetext, self.atext)
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diff changeset
   333
        bm = mdiff.get_matching_blocks(self.basetext, self.btext)
4362
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diff changeset
   334
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   335
        unc = []
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   336
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   337
        while am and bm:
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   338
            # there is an unconflicted block at i; how long does it
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diff changeset
   339
            # extend?  until whichever one ends earlier.
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   340
            a1 = am[0][0]
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   341
            a2 = a1 + am[0][2]
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   342
            b1 = bm[0][0]
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   343
            b2 = b1 + bm[0][2]
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   344
            i = intersect((a1, a2), (b1, b2))
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diff changeset
   345
            if i:
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diff changeset
   346
                unc.append(i)
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   347
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   348
            if a2 < b2:
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   349
                del am[0]
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   350
            else:
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   351
                del bm[0]
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   352
4362
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   353
        return unc
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   354
8269
bb9f13974d8e simplemerge: use ui.warn() for warnings
Steve Borho <steve@borho.org>
parents: 7280
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   355
def simplemerge(ui, local, base, other, **opts):
4364
d5c3a70f8422 polish the simplemerge command; add a test
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   356
    def readfile(filename):
d5c3a70f8422 polish the simplemerge command; add a test
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   357
        f = open(filename, "rb")
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diff changeset
   358
        text = f.read()
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   359
        f.close()
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diff changeset
   360
        if util.binary(text):
d5c3a70f8422 polish the simplemerge command; add a test
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diff changeset
   361
            msg = _("%s looks like a binary file.") % filename
14328
3c65cdcf3ba6 simplemerge: do not allow binary files to abort an entire merge
Steve Borho <steve@borho.org>
parents: 12401
diff changeset
   362
            if not opts.get('quiet'):
3c65cdcf3ba6 simplemerge: do not allow binary files to abort an entire merge
Steve Borho <steve@borho.org>
parents: 12401
diff changeset
   363
                ui.warn(_('warning: %s\n') % msg)
4364
d5c3a70f8422 polish the simplemerge command; add a test
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diff changeset
   364
            if not opts.get('text'):
26587
56b2bcea2529 error: get Abort from 'error' instead of 'util'
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 26223
diff changeset
   365
                raise error.Abort(msg)
4364
d5c3a70f8422 polish the simplemerge command; add a test
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   366
        return text
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Alexis S. L. Carvalho <alexis@cecm.usp.br>
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diff changeset
   367
26069
09d6725cbc60 simplemerge: add 'mode' kwarg which - when 'union' - suppresses markers
Erik Huelsmann <ehuels@gmail.com>
parents: 25974
diff changeset
   368
    mode = opts.get('mode','merge')
09d6725cbc60 simplemerge: add 'mode' kwarg which - when 'union' - suppresses markers
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parents: 25974
diff changeset
   369
    if mode == 'union':
09d6725cbc60 simplemerge: add 'mode' kwarg which - when 'union' - suppresses markers
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diff changeset
   370
        name_a = None
09d6725cbc60 simplemerge: add 'mode' kwarg which - when 'union' - suppresses markers
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diff changeset
   371
        name_b = None
09d6725cbc60 simplemerge: add 'mode' kwarg which - when 'union' - suppresses markers
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diff changeset
   372
        name_base = None
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diff changeset
   373
    else:
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diff changeset
   374
        name_a = local
09d6725cbc60 simplemerge: add 'mode' kwarg which - when 'union' - suppresses markers
Erik Huelsmann <ehuels@gmail.com>
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diff changeset
   375
        name_b = other
09d6725cbc60 simplemerge: add 'mode' kwarg which - when 'union' - suppresses markers
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diff changeset
   376
        name_base = None
09d6725cbc60 simplemerge: add 'mode' kwarg which - when 'union' - suppresses markers
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diff changeset
   377
        labels = opts.get('label', [])
09d6725cbc60 simplemerge: add 'mode' kwarg which - when 'union' - suppresses markers
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parents: 25974
diff changeset
   378
        if len(labels) > 0:
09d6725cbc60 simplemerge: add 'mode' kwarg which - when 'union' - suppresses markers
Erik Huelsmann <ehuels@gmail.com>
parents: 25974
diff changeset
   379
            name_a = labels[0]
09d6725cbc60 simplemerge: add 'mode' kwarg which - when 'union' - suppresses markers
Erik Huelsmann <ehuels@gmail.com>
parents: 25974
diff changeset
   380
        if len(labels) > 1:
09d6725cbc60 simplemerge: add 'mode' kwarg which - when 'union' - suppresses markers
Erik Huelsmann <ehuels@gmail.com>
parents: 25974
diff changeset
   381
            name_b = labels[1]
09d6725cbc60 simplemerge: add 'mode' kwarg which - when 'union' - suppresses markers
Erik Huelsmann <ehuels@gmail.com>
parents: 25974
diff changeset
   382
        if len(labels) > 2:
09d6725cbc60 simplemerge: add 'mode' kwarg which - when 'union' - suppresses markers
Erik Huelsmann <ehuels@gmail.com>
parents: 25974
diff changeset
   383
            name_base = labels[2]
09d6725cbc60 simplemerge: add 'mode' kwarg which - when 'union' - suppresses markers
Erik Huelsmann <ehuels@gmail.com>
parents: 25974
diff changeset
   384
        if len(labels) > 3:
26587
56b2bcea2529 error: get Abort from 'error' instead of 'util'
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 26223
diff changeset
   385
            raise error.Abort(_("can only specify three labels."))
4364
d5c3a70f8422 polish the simplemerge command; add a test
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4363
diff changeset
   386
14328
3c65cdcf3ba6 simplemerge: do not allow binary files to abort an entire merge
Steve Borho <steve@borho.org>
parents: 12401
diff changeset
   387
    try:
3c65cdcf3ba6 simplemerge: do not allow binary files to abort an entire merge
Steve Borho <steve@borho.org>
parents: 12401
diff changeset
   388
        localtext = readfile(local)
3c65cdcf3ba6 simplemerge: do not allow binary files to abort an entire merge
Steve Borho <steve@borho.org>
parents: 12401
diff changeset
   389
        basetext = readfile(base)
3c65cdcf3ba6 simplemerge: do not allow binary files to abort an entire merge
Steve Borho <steve@borho.org>
parents: 12401
diff changeset
   390
        othertext = readfile(other)
26587
56b2bcea2529 error: get Abort from 'error' instead of 'util'
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 26223
diff changeset
   391
    except error.Abort:
14328
3c65cdcf3ba6 simplemerge: do not allow binary files to abort an entire merge
Steve Borho <steve@borho.org>
parents: 12401
diff changeset
   392
        return 1
4364
d5c3a70f8422 polish the simplemerge command; add a test
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4363
diff changeset
   393
15381
c519cd8f0169 backout dbdb777502dc (issue3077) (issue3071)
Matt Mackall <mpm@selenic.com>
parents: 15355
diff changeset
   394
    local = os.path.realpath(local)
4364
d5c3a70f8422 polish the simplemerge command; add a test
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4363
diff changeset
   395
    if not opts.get('print'):
13970
d13913355390 move opener from util to scmutil
Adrian Buehlmann <adrian@cadifra.com>
parents: 12401
diff changeset
   396
        opener = scmutil.opener(os.path.dirname(local))
4364
d5c3a70f8422 polish the simplemerge command; add a test
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4363
diff changeset
   397
        out = opener(os.path.basename(local), "w", atomictemp=True)
d5c3a70f8422 polish the simplemerge command; add a test
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4363
diff changeset
   398
    else:
d5c3a70f8422 polish the simplemerge command; add a test
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4363
diff changeset
   399
        out = sys.stdout
d5c3a70f8422 polish the simplemerge command; add a test
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4363
diff changeset
   400
d5c3a70f8422 polish the simplemerge command; add a test
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4363
diff changeset
   401
    m3 = Merge3Text(basetext, localtext, othertext)
26223
ed12abab068e simplemerge: enable option to resolve conflicts one way
Jordi Gutiérrez Hermoso <jordigh@octave.org>
parents: 26069
diff changeset
   402
    extrakwargs = {"localorother": opts.get("localorother", None)}
26069
09d6725cbc60 simplemerge: add 'mode' kwarg which - when 'union' - suppresses markers
Erik Huelsmann <ehuels@gmail.com>
parents: 25974
diff changeset
   403
    if mode == 'union':
09d6725cbc60 simplemerge: add 'mode' kwarg which - when 'union' - suppresses markers
Erik Huelsmann <ehuels@gmail.com>
parents: 25974
diff changeset
   404
        extrakwargs['start_marker'] = None
09d6725cbc60 simplemerge: add 'mode' kwarg which - when 'union' - suppresses markers
Erik Huelsmann <ehuels@gmail.com>
parents: 25974
diff changeset
   405
        extrakwargs['mid_marker'] = None
09d6725cbc60 simplemerge: add 'mode' kwarg which - when 'union' - suppresses markers
Erik Huelsmann <ehuels@gmail.com>
parents: 25974
diff changeset
   406
        extrakwargs['end_marker'] = None
09d6725cbc60 simplemerge: add 'mode' kwarg which - when 'union' - suppresses markers
Erik Huelsmann <ehuels@gmail.com>
parents: 25974
diff changeset
   407
    elif name_base is not None:
22024
372ae2745acf simplemerge: support three labels when merging
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 22023
diff changeset
   408
        extrakwargs['base_marker'] = '|||||||'
372ae2745acf simplemerge: support three labels when merging
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 22023
diff changeset
   409
        extrakwargs['name_base'] = name_base
372ae2745acf simplemerge: support three labels when merging
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 22023
diff changeset
   410
    for line in m3.merge_lines(name_a=name_a, name_b=name_b, **extrakwargs):
4364
d5c3a70f8422 polish the simplemerge command; add a test
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4363
diff changeset
   411
        out.write(line)
d5c3a70f8422 polish the simplemerge command; add a test
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4363
diff changeset
   412
d5c3a70f8422 polish the simplemerge command; add a test
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4363
diff changeset
   413
    if not opts.get('print'):
15057
774da7121fc9 atomictempfile: make close() consistent with other file-like objects.
Greg Ward <greg@gerg.ca>
parents: 14549
diff changeset
   414
        out.close()
4364
d5c3a70f8422 polish the simplemerge command; add a test
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4363
diff changeset
   415
26069
09d6725cbc60 simplemerge: add 'mode' kwarg which - when 'union' - suppresses markers
Erik Huelsmann <ehuels@gmail.com>
parents: 25974
diff changeset
   416
    if m3.conflicts and not mode == 'union':
4364
d5c3a70f8422 polish the simplemerge command; add a test
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4363
diff changeset
   417
        if not opts.get('quiet'):
8269
bb9f13974d8e simplemerge: use ui.warn() for warnings
Steve Borho <steve@borho.org>
parents: 7280
diff changeset
   418
            ui.warn(_("warning: conflicts during merge.\n"))
4364
d5c3a70f8422 polish the simplemerge command; add a test
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4363
diff changeset
   419
        return 1