mirror of https://github.com/apache/cassandra
89 lines
3.0 KiB
Python
Executable File
89 lines
3.0 KiB
Python
Executable File
#!/usr/bin/env python3
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# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import os
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import platform
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import sys
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from glob import glob
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if sys.version_info < (3, 6) or sys.version_info >= (3, 12):
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sys.exit("\ncqlsh requires Python 3.6-3.11\n")
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# see CASSANDRA-10428
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if platform.python_implementation().startswith('Jython'):
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sys.exit("\nCQL Shell does not run on Jython\n")
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CQL_LIB_PREFIX = 'cassandra-driver-internal-only-'
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CASSANDRA_PATH = os.path.join(os.path.dirname(os.path.realpath(__file__)), '..')
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# use bundled lib for python-cql if available. if there
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# is a ../lib dir, use bundled libs there preferentially.
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ZIPLIB_DIRS = [os.path.join(CASSANDRA_PATH, 'lib')]
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if platform.system() == 'Linux':
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ZIPLIB_DIRS.append('/usr/share/cassandra/lib')
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if os.environ.get('CQLSH_NO_BUNDLED', ''):
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ZIPLIB_DIRS = ()
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def find_zip(libprefix):
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for ziplibdir in ZIPLIB_DIRS:
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zips = glob(os.path.join(ziplibdir, libprefix + '*.zip'))
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if zips:
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return max(zips) # probably the highest version, if multiple
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cql_zip = find_zip(CQL_LIB_PREFIX)
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if cql_zip:
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ver = os.path.splitext(os.path.basename(cql_zip))[0][len(CQL_LIB_PREFIX):]
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sys.path.insert(0, os.path.join(cql_zip, 'cassandra-driver-' + ver))
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# the driver needs dependencies
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third_parties = ('pure_sasl-', 'wcwidth-')
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for lib in third_parties:
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lib_zip = find_zip(lib)
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if lib_zip:
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sys.path.insert(0, lib_zip)
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try:
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import cassandra
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except ImportError as e:
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sys.exit("\nPython Cassandra driver not installed, or not on PYTHONPATH.\n"
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'You might try "pip install cassandra-driver".\n\n'
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'Python: %s\n'
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'Module load path: %r\n\n'
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'Error: %s\n' % (sys.executable, sys.path, e))
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# cqlsh should run correctly when run out of a Cassandra source tree,
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# out of an unpacked Cassandra tarball, and after a proper package install.
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cqlshlibdir = os.path.join(CASSANDRA_PATH, 'pylib')
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if os.path.isdir(cqlshlibdir):
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sys.path.insert(0, cqlshlibdir)
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from cqlshlib.cqlshmain import main
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# always call this regardless of module name: when a sub-process is spawned
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# on Windows then the module name is not __main__, see CASSANDRA-9304 (Windows support was dropped in CASSANDRA-16956)
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if __name__ == '__main__':
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main(sys.argv[1:], CASSANDRA_PATH)
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