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#!/usr/bin/env bash

#
# Copyright 2011 Twitter, 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.
#

#
# Runs the PyCascading locally without Hadoop
#


usage()
{
    cat <<EOF
Usage:

$(basename "$0") <main_script.py> [parameters]

Runs the PyCascading script locally, without a Hadoop cluster.

Options:
-h Show this message
-j <cp> Additional jar files and Python import folders to be added
to the classpath. cp is a list of file and folder locations
separated by ":"s

EOF
}


while getopts ":hj:" OPTION; do
    case $OPTION in
        h) usage
            exit 1
            ;;
        j) additional_jars="$OPTARG"
            ;;
    esac
done
shift $((OPTIND-1))

main_file="$1"
if [ "$main_file" == "" ]; then
    usage
    exit 1
fi

home_dir=$(dirname "$0")
source "$home_dir/java/dependencies.properties"

classpath="$home_dir/build/classes"

function add2classpath
{
for lib in $1; do
for file in $(ls $2/$lib); do
classpath="$classpath:$file"
done
done
}

# Jython jars
jython_libs='jython.jar'
add2classpath "$jython_libs" "$jython"

# Cascading jars
cascading_libs='cascading-[0-9].*.jar lib/jgrapht-*.jar'
add2classpath "$cascading_libs" "$cascading"

# Hadoop jars
hadoop_libs='hadoop-*core*.jar lib/*.jar'
add2classpath "$hadoop_libs" "$hadoop"

if [ "$additional_jars" != "" ]; then
    classpath="$classpath:$additional_jars"
fi

# sys.path will be initialized from JYTHONPATH
JYTHONPATH="$home_dir/python" java -classpath "$classpath" \
com.twitter.pycascading.Main "$home_dir/python/pycascading/bootstrap.py" \
local "$home_dir" "$@"
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