1#!/usr/bin/env bash 2 3# We want to catch any unexpected failure, and exit immediately 4set -e 5 6# Download helper for wget, to be called from the download wrapper script 7# 8# Options: 9# -q Be quiet. 10# -o FILE Save into file FILE. 11# -f FILENAME The filename of the tarball to get at URL 12# -u URL Download file at URL. 13# -e ENCODE Tell wget to urlencode the filename passed to it 14# 15# Environment: 16# WGET : the wget command to call 17 18quiet= 19while getopts "${BR_BACKEND_DL_GETOPTS}" OPT; do 20 case "${OPT}" in 21 q) quiet=-q;; 22 o) output="${OPTARG}";; 23 f) filename="${OPTARG}";; 24 u) url="${OPTARG}";; 25 e) encode="-e";; 26 :) printf "option '%s' expects a mandatory argument\n" "${OPTARG}"; exit 1;; 27 \?) printf "unknown option '%s'\n" "${OPTARG}" >&2; exit 1;; 28 esac 29done 30 31shift $((OPTIND-1)) # Get rid of our options 32 33# Caller needs to single-quote its arguments to prevent them from 34# being expanded a second time (in case there are spaces in them) 35_wget() { 36 if [ -z "${quiet}" ]; then 37 printf '%s ' ${WGET} "${@}"; printf '\n' 38 fi 39 _plain_wget "$@" 40} 41# Note: please keep command below aligned with what is printed above 42_plain_wget() { 43 eval ${WGET} "${@}" 44} 45 46# Replace every '?' with '%3F' in the filename; only for the PRIMARY and BACKUP 47# mirror 48[ -n "${encode}" ] && filename=${filename//\?/%3F} 49 50_wget ${quiet} "${@}" -O "'${output}'" "'${url}/${filename}'" 51