comparison mercurial/context.py @ 27748:81b391a45264

context: clarify why we don't compare file contents when nodeid differs

See previous commit for timing information.

27747:54522bbe1597

            (node1, flag1), (node2, flag2) = value
            if node1 is None:
                added.append(fn)
            elif node2 is None:
                removed.append(fn)
            elif node2 != _newnode:
                # The file was not a new file in mf2, so an entry
                # from diff is really a difference.
                modified.append(fn)
            elif flag1 != flag2:
                modified.append(fn)
            elif self[fn].cmp(other[fn]):
                # node2 was newnode, but the working file doesn't
                # match the one in mf1.
                modified.append(fn)
            else:
                clean.append(fn)

        if removed:

27748:81b391a45264

            (node1, flag1), (node2, flag2) = value
            if node1 is None:
                added.append(fn)
            elif node2 is None:
                removed.append(fn)
            elif self.rev() is not None:
                # When comparing files between two commits, we save time by
                # not comparing the file contents when the nodeids differ.
                # Note that this means we incorrectly report a reverted change
                # to a file as a modification.
                modified.append(fn)
            elif flag1 != flag2:
                modified.append(fn)
            elif self[fn].cmp(other[fn]):
                modified.append(fn)
            else:
                clean.append(fn)

        if removed: