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import glob
import os
import socket
import subprocess
import time
import pytest
def public_dir(path):
os.chmod(path, 0o777)
for root, dirs, files in os.walk(path):
for d in dirs:
try:
os.chmod(os.path.join(root, d), 0o777)
except FileNotFoundError:
pass
for f in files:
try:
os.chmod(os.path.join(root, f), 0o777)
except FileNotFoundError:
pass
def waitforfiles(*files, timeout=50):
for i in range(timeout):
wait = False
for f in files:
if not os.path.exists(f):
wait = True
break
if not wait:
return True
time.sleep(0.1)
return False
def waitforglob(pattern, count=1, timeout=50):
for i in range(timeout):
n = 0
for f in glob.glob(pattern):
n += 1
if n == count:
return True
time.sleep(0.1)
return False
def waitforsocket(port):
for i in range(50):
with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as sock:
try:
sock.settimeout(5)
sock.connect(('127.0.0.1', port))
return
except ConnectionRefusedError:
time.sleep(0.1)
except KeyboardInterrupt:
raise
pytest.fail(f"Can't connect to the 127.0.0.1:{port}")
def check_findmnt():
try:
return subprocess.check_output(
['findmnt', '--raw'], stderr=subprocess.STDOUT
).decode()
except FileNotFoundError:
return False
def findmnt():
out = check_findmnt()
if not out:
pytest.skip('requires findmnt')
return out
def sysctl():
try:
out = subprocess.check_output(
['sysctl', '-a'], stderr=subprocess.STDOUT
).decode()
except FileNotFoundError:
pytest.skip('requires sysctl')
return out
def waitformount(template, timeout=50):
for i in range(timeout):
if findmnt().find(template) != -1:
return True
time.sleep(0.1)
return False
def waitforunmount(template, timeout=50):
for i in range(timeout):
if findmnt().find(template) == -1:
return True
time.sleep(0.1)
return False
def getns(nstype):
# read namespace id from symlink file:
# it points to: '<nstype>:[<ns id>]'
# # eg.: 'pid:[4026531836]'
nspath = f'/proc/self/ns/{nstype}'
data = None
if os.path.exists(nspath):
data = int(os.readlink(nspath)[len(nstype) + 2 : -1])
return data
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