+from bup import git, metadata
+from bup import vfs
+from bup.helpers import clear_errors, detect_fakeroot, is_superuser, resolve_parent
+from bup.repo import LocalRepo
+from bup.xstat import utime, lutime
+from buptest import no_lingering_errors, test_tempdir
+import bup.helpers as helpers
+
+
+top_dir = '../../..'
+bup_tmp = os.path.realpath('../../../t/tmp')
+bup_path = top_dir + '/bup'
+start_dir = os.getcwd()
+
+
+def ex(*cmd):
+ try:
+ cmd_str = ' '.join(cmd)
+ print >> sys.stderr, cmd_str
+ rc = subprocess.call(cmd)
+ if rc < 0:
+ print >> sys.stderr, 'terminated by signal', - rc
+ sys.exit(1)
+ elif rc > 0:
+ print >> sys.stderr, 'returned exit status', rc
+ sys.exit(1)
+ except OSError as e:
+ print >> sys.stderr, 'subprocess call failed:', e
+ sys.exit(1)
+
+
+def setup_testfs():
+ assert(sys.platform.startswith('linux'))
+ # Set up testfs with user_xattr, etc.
+ if subprocess.call(['modprobe', 'loop']) != 0:
+ return False
+ subprocess.call(['umount', 'testfs'])
+ ex('dd', 'if=/dev/zero', 'of=testfs.img', 'bs=1M', 'count=32')
+ ex('mke2fs', '-F', '-j', '-m', '0', 'testfs.img')
+ ex('rm', '-rf', 'testfs')
+ os.mkdir('testfs')
+ ex('mount', '-o', 'loop,acl,user_xattr', 'testfs.img', 'testfs')
+ # Hide, so that tests can't create risks.
+ os.chown('testfs', 0, 0)
+ os.chmod('testfs', 0o700)
+ return True
+
+
+def cleanup_testfs():
+ subprocess.call(['umount', 'testfs'])
+ helpers.unlink('testfs.img')
+