1#!/bin/bash 2# Run with no arguments from any directory, with no special setup required. 3 4# Abort if any command returns an error exit status, or if an undefined 5# variable is used. 6set -e 7set -u 8 9base_dir=$(realpath $(dirname $0)) 10 11# Extract the latest version from the web page. 12new_version=$(wget -O - --no-verbose -q http://zlib.net/ | \ 13 grep 'http://zlib.net/zlib-[0-9].*.tar.gz' | \ 14 sed 's/.*zlib-\(.*\)\.tar\.gz.*/\1/') 15tgz_file="zlib-$new_version.tar.gz" 16 17echo "Upgrading zlib to version $new_version..." 18echo "-------------------------------------------------------------------" 19 20echo "Downloading $tgz_file..." 21wget -O /tmp/$tgz_file --no-verbose "http://zlib.net/$tgz_file" 22 23echo "Cleaning out old version..." 24src_dir=$base_dir/src 25rm -rf $src_dir 26 27echo "Unpacking new version..." 28cd $base_dir 29tar zxf /tmp/$tgz_file 30mv zlib-$new_version src 31 32echo "Configuring new version..." 33cd src 34./configure 35rm Makefile configure.log 36cd .. 37 38echo "Fixing NOTICE file..." 39grep -A21 'Copyright notice:' src/README | tail -20 > NOTICE 40 41md5_sum=$(md5sum /tmp/$tgz_file) 42echo "MD5: $md5_sum" 43