jython_install.sh

#!/usr/bin/env bash
#  vim:ts=4:sts=4:sw=4:et
#
#  Author: Hari Sekhon
#  Date: 2016-08-01 10:17:55 +0100 (Mon, 01 Aug 2016)
#
#  https://github.com/HariSekhon/DevOps-Python-tools
#
#  License: see accompanying Hari Sekhon LICENSE file
#
#  If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
#
#  https://www.linkedin.com/in/HariSekhon
#

set -eu
[ -n "${DEBUG:-}" ] && set -x

JYTHON_VERSION="${1:-2.7.0}"

JYTHON_INSTALL_DIR="${2:-/opt/jython-$JYTHON_VERSION}"

# not set in busybox
#[ $EUID -eq 0 ] && sudo="" || sudo=sudo
[ "$(whoami)" = "root" ] && sudo="" || sudo=sudo

# installer will tell us if dir isn't empty
#if ! [ -e "$JYTHON_INSTALL_DIR" ]; then
    $sudo mkdir -p "$JYTHON_INSTALL_DIR"
    wget -cO jython-installer.jar "http://search.maven.org/remotecontent?filepath=org/python/jython-installer/$JYTHON_VERSION/jython-installer-$JYTHON_VERSION.jar"
    #$sudo expect "$srcdir/jython_autoinstall.exp"
    #
    # 'core' = too minimal to be useful to my real world programs, install results in:
    # import socket
    # ...
    # ImportError: No module named encodings
    #
    #$sudo java -jar jython-installer.jar --silent --include mod --include ensurepip --directory "$JYTHON_INSTALL_DIR"
    $sudo java -jar jython-installer.jar -s -t standard -d "$JYTHON_INSTALL_DIR"
    $sudo rm -fr "$JYTHON_INSTALL_DIR"/{Docs,Demo,tests}
    $sudo ln -sf "$JYTHON_INSTALL_DIR" /opt/jython
    rm -f jython-installer.jar
    echo
    echo "Jython Install done"
#else
#    echo "$JYTHON_INSTALL_DIR already exists - doing nothing"
#fi
if ! [ -e /etc/profile.d/jython.sh ]; then
    echo "Adding /etc/profile.d/jython.sh"
    # shell execution tracing comes out in the file otherwise
    set +x
    cat >> /etc/profile.d/jython.sh <<EOF
export JYTHON_HOME=/opt/jython
export PATH=\$PATH:\$JYTHON_HOME/bin
EOF
fi
echo "DONE"