node-install.sh

#!/bin/bash

TARGET_VERSION=$1
LOCATION=$2
ARCH=$3

if [ "x"$TARGET_VERSION = "x-h" -o "x"$TARGET_VERSION = "x--help" -o "x"$LOCATION = "x" ]; then
    echo "[usage] node-install VERSION LOCATION [arch]"
    echo "  ex: node-install v0.10.1 ~/local/node-v0.10"
    echo "  ex: node-install v0.10.1 ~/local/node-v0.10 darwin-x86"
    echo "  default arch is 'linux-x64'"
    exit 0
fi

if [ "x"$ARCH = "x" ]; then
    ARCH="linux-x64"
fi

cd $(dirname $0)

ARCHIVE_FILENAME="node-"$TARGET_VERSION"-"$ARCH".tar.gz"
ARCHIVE_DIRNAME="node-"$TARGET_VERSION"-"$ARCH

set -e
mkdir -p var/node-archive
cd var/node-archive
curl -s -O http://nodejs.org/dist/$TARGET_VERSION/$ARCHIVE_FILENAME

cd ..
tar xzf node-archive/$ARCHIVE_FILENAME

if [ -d $LOCATION ]; then
    [[ -d $LOCATION.replaced ]] && rm -rf $LOCATION.replaced
    mv $LOCATION $LOCATION.replaced
else
    mkdir -p $LOCATION && rmdir $LOCATION
fi
mv $ARCHIVE_DIRNAME $LOCATION

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