install

#!/bin/bash

_check_for_sudo()
{
    if [ $USER != "root" ]; then
        echo "Installation requires root privileges.  Use sudo."
        return 1
    fi
    return 0
}

_install()
{
   local -i result
   install -D --mode=755 scrape        /usr/local/lib/scrape/scrape
   result=$?
   if [ $result -eq 0 ]; then
       install -D --mode=644 sanitize.xsl  /usr/local/lib/scrape/sanitize.xsl
       cp -sf /usr/local/lib/scrape/scrape /usr/local/bin/scrape
       echo "Successfully installed."
   else
       echo "Failed to copy files, result=$result"
   fi
}

_uninstall()
{
    local -i result
    rm -f /usr/local/bin/scrape
    result=$?
    if [ $result -eq 0 ]; then
        rm -fr /usr/local/lib/scrape
        echo "Successfully un-installed."
    else
        echo "Failed to uninstall, result=$result"
    fi
}

_show_usage()
{
   echo "To install the python executable, scrape, and the companion"
   echo "stylesheet, sanitize.xsl, simply run this program."
   echo
   echo "To uninstall, type:"
   echo "./install --uninstall"
   echo
   echo "To see this help page, type:"
   echo "./install --help"
}

if [ $# -lt 1 ]; then
    if _check_for_sudo; then
        _install
    fi
elif [ $# -eq 1 -a $2=="--uninstall" ]; then
    if _check_for_sudo; then
        _uninstall
    fi
else
    _show_usage
fi