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#!/bin/bash
set -e
_max_heap_mem=2048m
_initial_heap_mem=128m
_pkgname='vfrflight'
_installdir="/opt/${_pkgname}"
_homedir="${HOME}"
_localdir="${_homedir}/.${_pkgname}"
_executable_name="vfr-flight.jar"
msg() {
printf "%s\n" "$1"
}
errmsg() {
msg "$1" > /dev/stderr
}
_preparation() {
msg "Preparation: $1"
}
### Create "$_localdir" if $_homedir is present and $_localdir is not present.
if [ -d "${_homedir}" ]; then
if [ ! -e "${_localdir}" ] || [ -d "${_localdir}" ]; then
if [ ! -e "${_localdir}" ]; then
_preparation "Creating '${_localdir}'"
mkdir "${_localdir}"
fi
else
errmsg "Error: '${_localdir}' exists but is not a directory."
errmsg "Aborting."
exit 22
fi
else
errmsg "Error: Home-directory '${_homedir}' does not exist."
errmsg "Aborting."
exit 21
fi
ls -1d "${_installdir}"/* | while read _installitem; do
if [ ! -e "${_localdir}/$(basename "${_installitem}")" ]; then
_preparation "Symlinking '${_installitem}' -> '${_localdir}/$(basename "${_installitem}")'."
ln -sr "${_installitem}" "${_localdir}/$(basename "${_installitem}")"
fi
done
_preparation "Switching to directory '${_localdir}' ..."
cd "${_localdir}"
_preparation "Launching '"${_executable_name}"' ..."
java -Xms"${_initial_heap_mem}" -Xmx"${_max_heap_mem}" -Dfile.encoding=UTF-8 -jar ./"${_executable_name}" "$@"
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