comparison mercurial/mdiff.py @ 36676:c6a61298ac32

mdiff: add a config option to use xdiff algorithm

The `experimental.xdiff` will affect the default diffopts and make mdiff use
the xdiff algorithm for better diff quality.

Differential Revision: https://phab.mercurial-scm.org/D2603

36675:430fdb717549

        'ignorewseol': False,
        'ignoreblanklines': False,
        'upgrade': False,
        'showsimilarity': False,
        'worddiff': False,
        }

    def __init__(self, **opts):
        opts = pycompat.byteskwargs(opts)
        for k in self.defaults.keys():

            filteredblocks.append(block)
    if lba is None or uba is None or uba < lba:
        raise error.Abort(_('line range exceeds file size'))
    return filteredblocks, (lba, uba)

def allblocks(text1, text2, opts=None, lines1=None, lines2=None):
    """Return (block, type) tuples, where block is an mdiff.blocks
    line entry. type is '=' for blocks matching exactly one another
    (bdiff blocks), '!' for non-matching blocks and '~' for blocks
    matching only after having filtered blank lines.

    if opts is None:
        opts = defaultopts
    if opts.ignorews or opts.ignorewsamount or opts.ignorewseol:
        text1 = wsclean(opts, text1, False)
        text2 = wsclean(opts, text2, False)
    diff = bdiff.blocks(text1, text2)
    for i, s1 in enumerate(diff):
        # The first match is special.
        # we've either found a match starting at line 0 or a match later
        # in the file.  If it starts later, old and new below will both be
        # empty and we'll continue to the next match.

36676:c6a61298ac32

        'ignorewseol': False,
        'ignoreblanklines': False,
        'upgrade': False,
        'showsimilarity': False,
        'worddiff': False,
        'xdiff': False,
        }

    def __init__(self, **opts):
        opts = pycompat.byteskwargs(opts)
        for k in self.defaults.keys():

            filteredblocks.append(block)
    if lba is None or uba is None or uba < lba:
        raise error.Abort(_('line range exceeds file size'))
    return filteredblocks, (lba, uba)

def chooseblocksfunc(opts=None):
    if (opts is None or not opts.xdiff
        or not util.safehasattr(bdiff, 'xdiffblocks')):
        return bdiff.blocks
    else:
        return bdiff.xdiffblocks

def allblocks(text1, text2, opts=None, lines1=None, lines2=None):
    """Return (block, type) tuples, where block is an mdiff.blocks
    line entry. type is '=' for blocks matching exactly one another
    (bdiff blocks), '!' for non-matching blocks and '~' for blocks
    matching only after having filtered blank lines.

    if opts is None:
        opts = defaultopts
    if opts.ignorews or opts.ignorewsamount or opts.ignorewseol:
        text1 = wsclean(opts, text1, False)
        text2 = wsclean(opts, text2, False)
    diff = chooseblocksfunc(opts)(text1, text2)
    for i, s1 in enumerate(diff):
        # The first match is special.
        # we've either found a match starting at line 0 or a match later
        # in the file.  If it starts later, old and new below will both be
        # empty and we'll continue to the next match.