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# Copyright 2013 dotCloud inc.
# 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 io
import tarfile
import tempfile
import requests
import six
def mkbuildcontext(dockerfile):
f = tempfile.NamedTemporaryFile()
t = tarfile.open(mode='w', fileobj=f)
if isinstance(dockerfile, io.StringIO):
dfinfo = tarfile.TarInfo('Dockerfile')
if six.PY3:
raise TypeError('Please use io.BytesIO to create in-memory '
'Dockerfiles with Python 3')
else:
dfinfo.size = len(dockerfile.getvalue())
elif isinstance(dockerfile, io.BytesIO):
dfinfo = tarfile.TarInfo('Dockerfile')
dfinfo.size = len(dockerfile.getvalue())
else:
dfinfo = t.gettarinfo(fileobj=dockerfile, arcname='Dockerfile')
t.addfile(dfinfo, dockerfile)
t.close()
f.seek(0)
return f
def tar(path):
f = tempfile.NamedTemporaryFile()
t = tarfile.open(mode='w', fileobj=f)
t.add(path, arcname='.')
t.close()
f.seek(0)
return f
def compare_version(v1, v2):
return float(v2) - float(v1)
def ping(url):
try:
res = requests.get(url)
return res.status >= 400
except Exception:
return False
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