A script to install tarsnap automatically on Fedora/CentOS/RHEL

install-tarsnap.sh

#!/bin/bash
# To do:
#  - Force install (regardless of installed tarsnap version) via flag
#  - Set version via flag
#  - Set TMP_DIR via flag
#  - Skip software insall via flag
#  - Check signature automatically
VERSION=1.0.37
TMP_DIR=/tmp/tarsnap
REMOVE_DIR=false
if [ -e /usr/local/bin/tarsnap ]; then
        TARSNAP_VER=`/usr/local/bin/tarsnap --version`
        if [ "$TARSNAP_VER" == "tarsnap $VERSION" ]; then
                echo "Quitting because tarsnap already installed"
                exit
        else
                echo "Upgrading Tarsnap"
        fi
fi
# A list of the software we need to install
declare -a Software=('gpg2' 'wget' 'gcc' 'openssl-devel' 'zlib-devel' 'e2fsprogs-devel')
# Install the software using yum
echo "Installing required software"
yum -q -y install ${Software[@]}
echo "Checking for temp dir"
if [ ! -d $TMP_DIR ]; then
        echo "No tmp dir, creating it"
        mkdir $TMP_DIR
        REMOVE_DIR=true
fi
# wget the latest file
echo "Fetching tar of tarsnap files"
wget -qO $TMP_DIR/tarsnap.tgz https://www.tarsnap.com/download/tarsnap-autoconf-$VERSION.tgz
echo "Fetching tarsnap signature"
wget -qO $TMP_DIR/tarsnap.asc https://www.tarsnap.com/download/tarsnap-sigs-$VERSION.asc
echo "Fetching tarsnap signing key"
wget -qO $TMP_DIR/tarsnap-signing-key.asc https://www.tarsnap.com/tarsnap-signing-key.asc
# Verify the sigs
#gpg2 -qd $TMP_DIR/tarsnap.asc
echo "Extracting tar"
tar -xf $TMP_DIR/tarsnap.tgz -C $TMP_DIR
echo "Running ./configure"
$TMP_DIR/tarsnap-autoconf-$VERSION/configure
make -s -I $TMP_DIR/tarsnap-autoconf-$VERSION all install clean
if [ $REMOVE_DIR ]; then
        echo "Trashing tmp dir"
        rm -rf $TMP_DIR
fi
echo "Done"