copies: add a HASCOPIESINFO flag to highlight rev with useful data
If some files changes that may impact copy tracing are detected, we set this
flag. This helps the copy tracing algorithm to skip fetching possibly expensive
data when unnecessary.
Differential Revision: https://phab.mercurial-scm.org/D9139
# Test the config layer generated by environment variables
from __future__ import absolute_import, print_function
import os
from mercurial import (
encoding,
extensions,
rcutil,
ui as uimod,
util,
)
from mercurial.utils import procutil
testtmp = encoding.environ[b'TESTTMP']
# prepare hgrc files
def join(name):
return os.path.join(testtmp, name)
with open(join(b'sysrc'), 'wb') as f:
f.write(b'[ui]\neditor=e0\n[pager]\npager=p0\n')
with open(join(b'userrc'), 'wb') as f:
f.write(b'[ui]\neditor=e1')
# replace rcpath functions so they point to the files above
def systemrcpath():
return [join(b'sysrc')]
def userrcpath():
return [join(b'userrc')]
extensions.wrapfunction(rcutil, 'default_rc_resources', lambda orig: [])
rcutil.systemrcpath = systemrcpath
rcutil.userrcpath = userrcpath
# utility to print configs
def printconfigs(env):
encoding.environ = env
rcutil._rccomponents = None # reset cache
ui = uimod.ui.load()
for section, name, value in ui.walkconfig():
source = ui.configsource(section, name)
procutil.stdout.write(
b'%s.%s=%s # %s\n' % (section, name, value, util.pconvert(source))
)
procutil.stdout.write(b'\n')
# environment variable overrides
printconfigs({})
printconfigs({b'EDITOR': b'e2', b'PAGER': b'p2'})