mercurial/revlog.py

7361:9fe97eea5510

        if cache_length != length:
            c = c[offset:offset + length]

        return decompress(c)

    def delta(self, node):
        """return or calculate a delta between a node and its predecessor"""
        r = self.rev(node)
        return self.revdiff(r - 1, r)

    def revdiff(self, rev1, rev2):
        """return or calculate a delta between two revisions"""
        if rev1 + 1 == rev2 and self.base(rev1) == self.base(rev2):
            return self.chunk(rev2)

7362:6db4a2ccef3a

        if cache_length != length:
            c = c[offset:offset + length]

        return decompress(c)

    def revdiff(self, rev1, rev2):
        """return or calculate a delta between two revisions"""
        if rev1 + 1 == rev2 and self.base(rev1) == self.base(rev2):
            return self.chunk(rev2)