A bash script that tries to download a file with multiple programs, for use in makepkg.conf.

trydown

#!/bin/bash

# arg 0: URL
# arg 1: Output
url="$1"
output="$2"
url_key="%u"
output_key="%o"

order=(
    aria2
    curl
    axel
    wget
    hget
    snarf
    ruget
)

declare -A downloaders=(
    ['aria2']='/usr/bin/aria2c --allow-overwrite=true --continue=true --file-allocation=none --log-level=error --summary-interval=60 --timeout=5 -Uwget --out %o %u'
    ['axel']='/usr/bin/axel -n 2 -q -o %o %u'
    ['curl']='/usr/bin/curl -fLC - --retry 3 --retry-delay 3 -o %o %u'
    ['hget']='/usr/bin/hget %u -skip-tls false %o'
    ['ruget']='/usr/bin/ruget -o %o %u'
    ['snarf']='/usr/bin/snarf -N %u %o'
    ['wget']='/usr/bin/wget -q -t 3 --waitretry=3 -O %o %u'
)

for d in "${order[@]}"
do
    echo "Downloading with $d"
    cmd=${downloaders[$d]}
    cmd=${cmd//"$url_key"/"$url"}
    cmd=${cmd//"$output_key"/"$output"}
    echo $cmd
    $cmd 2>&1 | sed "s/^/    /"
    if [ "${PIPESTATUS[0]}" -eq 0 ] ; then
        echo ""
        echo "Done"
        exit 0
    fi
    echo ""
done

exit 1