Script to install Tarsnap

tsinstall.bash

#!/bin/bash

set -e
ROOT=/opt/tarsnap

usage() {
	echo "usage: $0 <version>"
	exit 1
}

if [ $# -ne 1 ]; then
	usage
fi

VERSION=$1
SRC=https://www.tarsnap.com/download/tarsnap-autoconf-${VERSION}.tgz
SIG=https://www.tarsnap.com/download/tarsnap-sigs-${VERSION}.asc
BUILDDIR=${ROOT}/build/tarsnap-${VERSION}
INSTALLDIR=${ROOT}/tarsnap/tarsnap-${VERSION}

mkdir -p ${ROOT}/archives
mkdir -p ${ROOT}/build
mkdir -p ${ROOT}/tarsnap
mkdir -p ${BUILDDIR}

echo "Downloading source code and signature"
wget -a ${BUILDDIR}/wget.log -O ${ROOT}/archives/tarsnap-autoconf-${VERSION}.tar $SRC
wget -a ${BUILDDIR}/wget.log -O ${ROOT}/archives/tarsnap-sigs-${VERSION}.asc $SIG

echo "Verifying source signature"
(cd ${ROOT}/archives && gpg --verify tarsnap-sigs-${VERSION}.asc >${BUILDDIR}/gpg.log)

echo "Extracting source code"
(cd ${ROOT}/build && tar -xf ${ROOT}/archives/tarsnap-autoconf-${VERSION}.tar >${BUILDDIR}/tar.log)

echo "Building Tarsnap ${VERSION}"
(cd ${ROOT}/build/tarsnap-autoconf-${VERSION} && ./configure --prefix=${INSTALLDIR} >${BUILDDIR}/build.log)
(cd ${ROOT}/build/tarsnap-autoconf-${VERSION} && make >>${BUILDDIR}/build.log && make install >>${BUILDDIR}/build.log)

ln -s ${INSTALLDIR} ${ROOT}/tarsnap/latest

echo ""
echo "Tarsnap ${VERSION} is now installed at ${ROOT}/tarsnap/tarsnap-${VERSION}."
echo "    ${ROOT}/tarsnap/latest -> ${ROOT}/tarsnap/tarsnap-${VERSION}"