comparison mercurial/context.py @ 31937:826e600605f6

context: add a blockdescendants function

This is symmetrical with blockancestors() and yields descendants of a filectx
with changes in the given line range. The noticeable difference is that the
algorithm does not follow renames (probably because filelog.descendants() does
not), so we are missing branches with renames.

31936:806f9a883b4f

                continue
            visit[p.linkrev(), p.filenode()] = p, linerange1
        if inrange:
            yield c, linerange2

class committablectx(basectx):
    """A committablectx object provides common functionality for a context that
    wants the ability to commit, e.g. workingctx or memctx."""
    def __init__(self, repo, text="", user=None, date=None, extra=None,
                 changes=None):

31937:826e600605f6

                continue
            visit[p.linkrev(), p.filenode()] = p, linerange1
        if inrange:
            yield c, linerange2

def blockdescendants(fctx, fromline, toline):
    """Yield descendants of `fctx` with respect to the block of lines within
    `fromline`-`toline` range.
    """
    diffopts = patch.diffopts(fctx._repo.ui)
    fl = fctx.filelog()
    seen = {fctx.filerev(): (fctx, (fromline, toline))}
    for i in fl.descendants([fctx.filerev()]):
        c = fctx.filectx(i)
        for x in fl.parentrevs(i):
            try:
                p, linerange2 = seen.pop(x)
            except KeyError:
                # nullrev or other branch
                continue
            inrange, linerange1 = _changesrange(c, p, linerange2, diffopts)
            if inrange:
                yield c, linerange1
            seen[i] = c, linerange1

class committablectx(basectx):
    """A committablectx object provides common functionality for a context that
    wants the ability to commit, e.g. workingctx or memctx."""
    def __init__(self, repo, text="", user=None, date=None, extra=None,
                 changes=None):