setup: replace runhg() with an hgcommand helper class
Replace the runhg() function with an hgcommand helper class. hgcommand has as
run() function similar to runhg(), but no longer requires the caller to pass in
the exact path to python and the hg script, and the environment settings for
invoking hg.
For now this diff contains no behavior changes, but in the future this will
make it easier for the hgcommand helper class to more intelligently figure out
the proper way to invoke hg.
from __future__ import absolute_import
import os
import sys
import time
from mercurial import (
commands,
hg,
ui as uimod,
util,
)
TESTDIR = os.environ["TESTDIR"]
BUNDLEPATH = os.path.join(TESTDIR, 'bundles', 'test-no-symlinks.hg')
# only makes sense to test on os which supports symlinks
if not getattr(os, "symlink", False):
sys.exit(80) # SKIPPED_STATUS defined in run-tests.py
u = uimod.ui.load()
# hide outer repo
hg.peer(u, {}, '.', create=True)
# clone with symlink support
hg.clone(u, {}, BUNDLEPATH, 'test0')
repo = hg.repository(u, 'test0')
# wait a bit, or the status call wont update the dirstate
time.sleep(1)
commands.status(u, repo)
# now disable symlink support -- this is what os.symlink would do on a
# non-symlink file system
def symlink_failure(src, dst):
raise OSError(1, "Operation not permitted")
os.symlink = symlink_failure
def islink_failure(path):
return False
os.path.islink = islink_failure
# dereference links as if a Samba server has exported this to a
# Windows client
for f in 'test0/a.lnk', 'test0/d/b.lnk':
os.unlink(f)
fp = open(f, 'wb')
fp.write(util.readfile(f[:-4]))
fp.close()
# reload repository
u = uimod.ui.load()
repo = hg.repository(u, 'test0')
commands.status(u, repo)
# try cloning a repo which contains symlinks
u = uimod.ui.load()
hg.clone(u, {}, BUNDLEPATH, 'test1')