| #!/usr/bin/env python3 |
| |
| # Licensed to the Apache Software Foundation (ASF) under one |
| # or more contributor license agreements. See the NOTICE file |
| # distributed with this work for additional information |
| # regarding copyright ownership. The ASF licenses this file |
| # to you 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 platform |
| import sys |
| from glob import glob |
| |
| if sys.version_info < (3, 6) or sys.version_info >= (3, 12): |
| sys.exit("\ncqlsh requires Python 3.6-3.11\n") |
| |
| # see CASSANDRA-10428 |
| if platform.python_implementation().startswith('Jython'): |
| sys.exit("\nCQL Shell does not run on Jython\n") |
| |
| CQL_LIB_PREFIX = 'cassandra-driver-internal-only-' |
| |
| CASSANDRA_PATH = os.path.join(os.path.dirname(os.path.realpath(__file__)), '..') |
| |
| # use bundled lib for python-cql if available. if there |
| # is a ../lib dir, use bundled libs there preferentially. |
| ZIPLIB_DIRS = [os.path.join(CASSANDRA_PATH, 'lib')] |
| |
| if platform.system() == 'Linux': |
| ZIPLIB_DIRS.append('/usr/share/cassandra/lib') |
| |
| if os.environ.get('CQLSH_NO_BUNDLED', ''): |
| ZIPLIB_DIRS = () |
| |
| |
| def find_zip(libprefix): |
| for ziplibdir in ZIPLIB_DIRS: |
| zips = glob(os.path.join(ziplibdir, libprefix + '*.zip')) |
| if zips: |
| return max(zips) # probably the highest version, if multiple |
| |
| |
| cql_zip = find_zip(CQL_LIB_PREFIX) |
| if cql_zip: |
| ver = os.path.splitext(os.path.basename(cql_zip))[0][len(CQL_LIB_PREFIX):] |
| sys.path.insert(0, os.path.join(cql_zip, 'cassandra-driver-' + ver)) |
| |
| # the driver needs dependencies |
| third_parties = ('pure_sasl-', 'wcwidth-') |
| |
| for lib in third_parties: |
| lib_zip = find_zip(lib) |
| if lib_zip: |
| sys.path.insert(0, lib_zip) |
| |
| try: |
| import cassandra |
| except ImportError as e: |
| sys.exit("\nPython Cassandra driver not installed, or not on PYTHONPATH.\n" |
| 'You might try "pip install cassandra-driver".\n\n' |
| 'Python: %s\n' |
| 'Module load path: %r\n\n' |
| 'Error: %s\n' % (sys.executable, sys.path, e)) |
| |
| |
| # cqlsh should run correctly when run out of a Cassandra source tree, |
| # out of an unpacked Cassandra tarball, and after a proper package install. |
| cqlshlibdir = os.path.join(CASSANDRA_PATH, 'pylib') |
| if os.path.isdir(cqlshlibdir): |
| sys.path.insert(0, cqlshlibdir) |
| |
| from cqlshlib.cqlshmain import main |
| |
| # always call this regardless of module name: when a sub-process is spawned |
| # on Windows then the module name is not __main__, see CASSANDRA-9304 (Windows support was dropped in CASSANDRA-16956) |
| |
| if __name__ == '__main__': |
| main(sys.argv[1:], CASSANDRA_PATH) |