convert/bzr: handle Bazaar timestamps correctly (
issue1652).
util: simplify pipefilter and avoid subprocess race
The subprocess module is not thread safe. Spawning a thread to read
the output leads to exceptions like this when Mercurial exits:
Exception exceptions.TypeError: TypeError("'NoneType' object is not
callable",) in <bound method Popen.__del__ of <subprocess.Popen
object at 0x9ed0dcc>> ignored
The bug is already reported in the Python bug tracker:
http://bugs.python.org/
issue1731717
util: stop overwriting sha1, overwrite _fastsha1 instead
Some modules (like revlog) would import util.sha1 as _sha1. This
defeats the purpose of having util.sha1 overwrite itself with a faster
version -- revlog would end up always calling the slow version. By
always delegating to util._fastsha1 we avoid this at the cost of an
extra (but unconditional) indirection.
util: remove md5
This hash function is broken and should not be used by new code. It is
currently only used by keepalive.