add dirstate.lazyread, write atomically the dirstate
- add a dirstate.lazyread function that read only if it wasn't read before and
update all callers
- use the atomic keyword from util.opener to atomically write the dirstate
mercurial/dirstate.py
import mercurial.util
def dumbdecode(s, cmd):
return s.replace('\n', '\r\n')
def dumbencode(s, cmd):
return s.replace('\r\n', '\n')
def clevertest(s, cmd):
if '\0' in s: return False
return True
def cleverdecode(s, cmd):
if clevertest(s, cmd):
return dumbdecode(s, cmd)
return s
def cleverencode(s, cmd):
if clevertest(s, cmd):
return dumbencode(s, cmd)
return s
mercurial.util.filtertable.update({
'dumbdecode:': dumbdecode,
'dumbencode:': dumbencode,
'cleverdecode:': cleverdecode,
'cleverencode:': cleverencode,
})