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libcxx_old/test/support/filesystem_dynamic_test_hel...

93 lines
2.3 KiB
Python

import sys
import os
import socket
import stat
# Ensure that this is being run on a specific platform
assert sys.platform.startswith('linux') or sys.platform.startswith('darwin') \
or sys.platform.startswith('cygwin') or sys.platform.startswith('freebsd') \
or sys.platform.startswith('netbsd')
def env_path():
ep = os.environ.get('LIBCXX_FILESYSTEM_DYNAMIC_TEST_ROOT')
assert ep is not None
ep = os.path.realpath(ep)
assert os.path.isdir(ep)
return ep
env_path_global = env_path()
# Make sure we don't try and write outside of env_path.
# All paths used should be sanitized
def sanitize(p):
p = os.path.realpath(p)
if os.path.commonprefix([env_path_global, p]):
return p
assert False
"""
Some of the tests restrict permissions to induce failures.
Before we delete the test environment, we have to walk it and re-raise the
permissions.
"""
def clean_recursive(root_p):
if not os.path.islink(root_p):
os.chmod(root_p, 0o777)
for ent in os.listdir(root_p):
p = os.path.join(root_p, ent)
if os.path.islink(p) or not os.path.isdir(p):
os.remove(p)
else:
assert os.path.isdir(p)
clean_recursive(p)
os.rmdir(p)
def init_test_directory(root_p):
root_p = sanitize(root_p)
assert not os.path.exists(root_p)
os.makedirs(root_p)
def destroy_test_directory(root_p):
root_p = sanitize(root_p)
clean_recursive(root_p)
os.rmdir(root_p)
def create_file(fname, size):
with open(sanitize(fname), 'w') as f:
f.write('c' * size)
def create_dir(dname):
os.mkdir(sanitize(dname))
def create_symlink(source, link):
os.symlink(sanitize(source), sanitize(link))
def create_hardlink(source, link):
os.link(sanitize(source), sanitize(link))
def create_fifo(source):
os.mkfifo(sanitize(source))
def create_socket(source):
sock = socket.socket(socket.AF_UNIX)
sanitized_source = sanitize(source)
# AF_UNIX sockets may have very limited path length, so split it
# into chdir call (with technically unlimited length) followed
# by bind() relative to the directory
os.chdir(os.path.dirname(sanitized_source))
sock.bind(os.path.basename(sanitized_source))
if __name__ == '__main__':
command = " ".join(sys.argv[1:])
eval(command)
sys.exit(0)