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ba808f67dd
The patch adds a set of scripts for converting the impala-shell into a true distributable python package. The package can be installed using familiar python commands, e.g.: $ python setup.py (install|develop) or $ pip install -e /path/to/dist/dir The entry point script, make_python_package.sh, will run as a part of the standard sequence of steps that results from calling buildall.sh, and will produce a gzipped tarball inside of Impala/shell/dist as an artifact. Thereafter, make_python_package.sh can be run manually any time. The expectation is that an official maintainer would need to manually upload official releases to the Python Package Index as appropriate. Change-Id: Ib8c745bddddf6a16f0c039430152745a2f00e044 Reviewed-on: http://gerrit.cloudera.org:8080/14181 Reviewed-by: David Knupp <dknupp@cloudera.com> Tested-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>
41 lines
2.0 KiB
Python
41 lines
2.0 KiB
Python
#!/usr/bin/env python
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#
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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,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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from os.path import dirname, abspath
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import sys
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# When installing the python shell as a standalone package, this __init__ is
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# used to workaround the issues stemming from IMPALA-6808. Because of the way
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# the Impala python environment has been somewhat haphazardly constructed in
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# a deployed cluster, it ends up being "polluted" with top-level modules that
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# should really be sub-modules. One of the principal places this occurs is with
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# the various modules required by the Impala shell. This isn't a concern when
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# the shell is invoked via a specially installed version of python that belongs
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# to Impala, but it does become an issue when the shell is being run using the
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# system python.
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#
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# If we want to install the shell as a standalone package, we need to construct
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# it in such a way that all of the internal modules are contained within a
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# top-level impala_shell namespace. However, this then breaks various imports
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# throughout the Impala shell code. The way this file corrects that is to add
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# the impala_shell directory to PYTHONPATH only when the shell is invoked. As
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# far as I can tell, there's no cleaner way to address this without fully
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# resolving IMPALA-6808.
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impala_shell_dir = dirname(abspath(__file__))
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sys.path.append(impala_shell_dir)
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