comparison mercurial/copies.py @ 43783:bbd7172bc3df

copies: show we can read data from the "first" mapping

In practice this make no difference since `t` is a copy of `a`. Having this
change before hand will make the next cleanup changeset clearer.

This is work on the road to using some native code for some performance critical
part of copy tracing.

43782:79750d781928

def _chain(a, b):
    """chain two sets of copies 'a' and 'b'"""
    t = a.copy()
    for k, v in pycompat.iteritems(b):
        t[k] = t.get(v, v)
    return t


def _tracefile(fctx, am, basemf):
    """return file context that is the ancestor of fctx present in ancestor

43783:bbd7172bc3df

def _chain(a, b):
    """chain two sets of copies 'a' and 'b'"""
    t = a.copy()
    for k, v in pycompat.iteritems(b):
        t[k] = a.get(v, v)
    return t


def _tracefile(fctx, am, basemf):
    """return file context that is the ancestor of fctx present in ancestor