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# Copyright 2017 ZTE Corporation.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import os
import shutil
import logging
import tempfile
import traceback
import urllib
import zipfile
logger = logging.getLogger(__name__)
def make_dirs(path):
if not os.path.exists(path):
os.makedirs(path, 0o777)
def delete_dirs(path):
try:
if os.path.exists(path):
shutil.rmtree(path)
except Exception as e:
logger.error(traceback.format_exc())
logger.error("Failed to delete %s:%s", path, e.args[0])
def download_file_from_http(url, local_dir, file_name):
local_file_name = os.path.join(local_dir, file_name)
is_download_ok = False
try:
make_dirs(local_dir)
req = urllib.request.urlopen(url)
save_file = open(local_file_name, 'w')
save_file.write(req.read())
save_file.close()
req.close()
is_download_ok = True
except:
logger.error(traceback.format_exc())
logger.error("Failed to download %s to %s.", url, local_file_name)
return is_download_ok, local_file_name
def unzip_file(zip_src, dst_dir, csar_path):
logger.debug("unzip_file %s to %s.", zip_src, dst_dir)
if os.path.exists(zip_src):
logger.debug("unzip_file %s.", zip_src)
fz = zipfile.ZipFile(zip_src, 'r')
for file in fz.namelist():
fz.extract(file, dst_dir)
return os.path.join(dst_dir, csar_path)
else:
return ""
def unzip_csar(zip_src, dst_dir):
if os.path.exists(zip_src):
fz = zipfile.ZipFile(zip_src, 'r')
for file in fz.namelist():
fz.extract(file, dst_dir)
return dst_dir
else:
logger.error("%s doesn't exist", zip_src)
return ""
def unzip_csar_to_tmp(zip_src):
dirpath = tempfile.mkdtemp()
zip_ref = zipfile.ZipFile(zip_src, 'r')
zip_ref.extractall(dirpath)
return dirpath
def get_artifact_path(vnf_path, artifact_file):
for root, dirs, files in os.walk(vnf_path):
if artifact_file in files:
return os.path.join(root, artifact_file)
return None
def end_with(_s_in, *suffix):
array = map(_s_in.endswith, suffix)
if True in array:
return True
return False
def filter_files(search_path, suffix):
f_find = []
file_list = os.listdir(search_path)
for file_item in file_list:
if end_with(file_item, suffix):
f_find.append(file_item)
return f_find
def recreate_dir(path):
if os.path.exists(path):
shutil.rmtree(path)
os.makedirs(path, mode=0o777)
def copy(src_file, dest_dir, new_file_name=None):
if not os.path.exists(dest_dir):
os.makedirs(dest_dir)
if new_file_name is None:
dst = os.path.join(dest_dir, os.path.basename(src_file))
else:
dst = os.path.join(dest_dir, new_file_name)
shutil.copyfile(src_file, dst)
shutil.copymode(src_file, dst)
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