Finding the fastest mirror

2022-07-11T15:43:50Z

Eric.schultz: Only try the mirror's once - Certain errors will retry inf and hang the script. sh version of echo does not support -e option corrupting the output.

After you install Alpine, you may be wondering how do I figure out the fastest mirror again?

{{Cat|/home/user/fastestmirror|<nowiki>
data=""
for s in $(wget -qO- http://rsync.alpinelinux.org/alpine/MIRRORS.txt); do
t=$(time -f "%E" wget -q $s/MIRRORS.txt -O /dev/null 2>&1)
echo "$s was $t"
data="$data$t $s\n"
done

echo "===RESULTS==="

echo -e $data | sort
</nowiki>}}

This is more advanced implementation.
{{Cat|/etc/apk/fastest-mirror|<nowiki>
#!/bin/sh
get_hostname_url() {
local n=${1#*://}
echo ${n%%/*}
}

time_cmd() {
local proc=$(cut -d ' ' -f1 /proc/uptime)
local start="$(echo $proc | cut -d . -f1)$(echo $proc | cut -d . -f2)"
$@ >/dev/null 2>&1 || return
proc=$(cut -d ' ' -f1 /proc/uptime)
local end="$(echo $proc | cut -d . -f1)$(echo $proc | cut -d . -f2)"
echo $(( $end - $start ))
}

DATA=""
MIRRORS=$(wget -qO- "http://rsync.alpinelinux.org/alpine/MIRRORS.txt")
DST=/etc/apk/mirrors.txt

#find best
for URL in $MIRRORS; do
TIME=$(time_cmd wget -T 1 -t 1 -q ${URL%/} -O /dev/null)
if [ -n "$TIME" ]; then
echo "$(get_hostname_url $URL) was $TIME"
DATA="$DATA$TIME $URL\n"
fi
done

echo $DATA | sort -n | tail -n +2 > $DST
[ $? = 0 ] && echo file $DST created

BEST=$(head -n1 $DST | cut -d ' ' -f2)
echo "Best mirror is: $BEST"

sed -i -r 's#^http.+/(.+/main)#'${BEST%/}'/\1#' /etc/apk/repositories
sed -i -r 's#^http.+/(.+/community)#'${BEST%/}'/\1#' /etc/apk/repositories
sed -i -r 's#^http.+/(.+/testing)#'${BEST%/}'/\1#' /etc/apk/repositories

</nowiki>}}

[[Category:Package Manager]]

[[Category:Package Manager]]

Alpine Linux - User contributions [en]

Finding the fastest mirror