python-install

#!/bin/bash

while getopts fh OPT
do
    case $OPT in
        "f") FLAG_FORCE="TRUE" ;;
        "h") FLAG_HELP="TRUE" ;;
        * ) FLAG_HELP="TRUE" ;;
    esac
done
shift `expr $OPTIND - 1`

TARGET_VERSION="$1"
LOCATION="$2"

if [ "x"$FLAG_HELP != "x" -o "x$LOCATION" = "x" ]; then
    echo "[usage] python-install [-f] VERSION LOCATION"
    echo "  ex: python-install 2.7.6 ~/local/python-2.7.6"
    exit 0
fi

cd $(dirname $0)
XBUILD_PATH=$(pwd)

if [ ! -d ./var/python-build ]; then
    (
        set -e
        mkdir -p var
        cd var
        git clone -q https://github.com/pyenv/pyenv.git pyenv-repo
        cd pyenv-repo/plugins/python-build
        PREFIX="$XBUILD_PATH"/var/python-build ./install.sh >/dev/null 2>&1
    )
    if [ $? -ne 0 ]; then
        echo "failed to download python-build"
        exit 1
    fi
fi

if [ "x"$FLAG_FORCE = "x" -a -d "$LOCATION" -a -x "$LOCATION/bin/python" ]; then
    current_ver=$("$LOCATION"/bin/python -V  2>&1 )
    if [ "x$current_ver" = "xPython $TARGET_VERSION" ]; then
        echo "python $TARGET_VERSION already installed on $LOCATION"
        echo "To do force re-install, use '-f' option"
        exit 0
    fi
fi

echo "Start to build python $TARGET_VERSION ..."
./var/python-build/bin/python-build "$TARGET_VERSION" "$LOCATION" > /tmp/$USER-python-install.log 2>&1
if [ $? -ne 0 ]; then
    echo "python-build failed. see log: /tmp/$USER-python-install.log"
    exit 1
fi

echo "python $TARGET_VERSION successfully installed on $LOCATION"
echo "To use this python, do 'export PATH=$LOCATION/bin:\$PATH'."