#!/bin/bash # # rankmirrors - read a list of mirrors from a file and rank them by speed # @configure_input@ # # Copyright (c) 2009 Matthew Bruenig <matthewbruenig@gmail.com> # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. # traps interrupt key to spit out pre-interrupt info trap finaloutput INT usage() { echo "Usage: rankmirrors [options] MIRRORFILE | URL" echo echo "Ranks pacman mirrors by their connection and opening speed. Pacman mirror" echo "files are located in @sysconfdir@/pacman.d/. It can also rank one mirror if the URL is" echo "provided." echo echo "Options:" echo " --version show program's version number and exit" echo " -h, --help show this help message and exit" echo " -n NUM number of servers to output, 0 for all" echo " -t, --times only output mirrors and their response times" echo " -u, --url test a specific url" echo " -v, --verbose be verbose in ouptut" echo " -r, --repo specify a specific repo name instead of guessing" exit 0 } version() { echo "rankmirrors (pacman) @PACKAGE_VERSION@" echo "Copyright (c) 2009 Matthew Bruenig <matthewbruenig@gmail.com>." echo echo "This is free software; see the source for copying conditions." echo "There is NO WARRANTY, to the extent permitted by law." exit 0 } err() { echo "$1" >&2 exit 1 } # gettime fetchurl (e.g gettime http://foo.com/core/os/i686/core.db.tar.gz) # returns the fetching time, or timeout, or unreachable gettime() { IFS=' ' output=( $(curl -s -m 10 -w "%{time_total} %{http_code}" "$1" -o/dev/null) ) (( $? == 28 )) && echo timeout && return (( ${output[1]} >= 400 || ! ${output[1]} )) && echo unreachable && return echo "${output[0]}" } # getfetchurl serverurl (e.g. getturl http://foo.com/core/os/i686) # if $repo is in the line, then assumes core # if $arch is in the line, then assumes $(uname -m) # returns a fetchurl (e.g. http://foo.com/core/os/i686/core.db.tar.gz) ARCH="$(uname -m)" getfetchurl() { local strippedurl="${1%/}" local replacedurl="${strippedurl//'$arch'/$ARCH}" if [[ ! $TARGETREPO ]]; then replacedurl="${replacedurl//'$repo'/core}" local tmp="${replacedurl%/*}" tmp="${tmp%/*}" local reponame="${tmp##*/}" else replacedurl="${replacedurl//'$repo'/$TARGETREPO}" local reponame="$TARGETREPO" fi if [[ -z $reponame || $reponame = $replacedurl ]]; then echo "fail" else local fetchurl="${replacedurl}/$reponame.db" echo "$fetchurl" fi } # This exists to remove the need for a separate interrupt function finaloutput() { IFS=$'\n' read -r -d '' -a sortedarray < \ <(printf '%s\n' "${timesarray[@]}" | LC_COLLATE=C sort) # Final output for mirrorfile numiterator="0" if [[ $TIMESONLY ]]; then echo echo " Servers sorted by time (seconds):" for line in "${sortedarray[@]}"; do echo "${line#* } : ${line% *}" ((numiterator++)) (( NUM && numiterator >= NUM )) && break done else for line in "${sortedarray[@]}"; do echo "Server = ${line#* }" ((numiterator++)) (( NUM && numiterator >= NUM )) && break done fi exit 0 } # Argument parsing [[ $1 ]] || usage while [[ $1 ]]; do if [[ ${1:0:2} = -- ]]; then case "${1:2}" in help) usage ;; version) version ;; times) TIMESONLY=1 ; shift ;; verbose) VERBOSE=1 ; shift ;; url) CHECKURL=1; [[ $2 ]] || err "Must specify url."; URL="$2"; shift 2;; repo) [[ $2 ]] || err "Must specify repo name."; TARGETREPO="$2"; shift 2;; *) err "\`$1' is an invalid argument." esac elif [[ ${1:0:1} = - ]]; then if [[ ! ${1:1:1} ]]; then [[ -t 0 ]] && err "Stdin is empty." IFS=$'\n' linearray=( $(</dev/stdin) ) STDIN=1 shift else snum=1 for ((i=1 ; i<${#1}; i++)); do case ${1:$i:1} in h) usage ;; t) TIMESONLY=1 ;; v) VERBOSE=1 ;; u) CHECKURL=1; [[ $2 ]] || err "Must specify url."; URL="$2"; snum=2;; r) [[ $2 ]] || err "Must specify repo name."; TARGETREPO="$2"; snum=2;; n) [[ $2 ]] || err "Must specify number." ; NUM="$2" ; snum=2;; *) err "\`-$1' is an invald argument." ;; esac done shift $snum fi elif [[ -f $1 ]]; then FILE="1" IFS=$'\n' linearray=( $(<$1) ) [[ $linearray ]] || err "File is empty." shift else err "\`$1' does not exist." fi done # Some sanity checks [[ $NUM ]] || NUM=0 [[ $FILE && $CHECKURL ]] && err "Cannot specify a url and mirrorfile." [[ $FILE || $CHECKURL || $STDIN ]] || err "Must specify url, mirrorfile, or stdin." # Single url handling if [[ $CHECKURL ]]; then url="$(getfetchurl "$URL")" [[ $url = fail ]] && err "url \`$URL' is malformed." [[ $VERBOSE ]] && echo "Testing $url..." time=$(gettime "$url") echo "$URL : $time" exit 0 fi # Get url results from mirrorfile, fill up the array, and so on if [[ $TIMESONLY ]]; then echo "Querying servers, this may take some time..." elif [[ $FILE ]]; then echo "# Server list generated by rankmirrors on $(date +%Y-%m-%d)" fi timesarray=() for line in "${linearray[@]}"; do if [[ $line =~ ^[[:space:]]*# ]]; then [[ $TIMESONLY ]] || echo $line elif [[ $line =~ ^[[:space:]]*Server ]]; then # Getting values and times and such server="${line#*= }" server="${server%%#*}" url="$(getfetchurl "$server")" [[ $url = fail ]] && err "url \`$URL' is malformed." time=$(gettime "$url") timesarray+=("$time $server") # Output if [[ $VERBOSE && $TIMESONLY ]]; then echo "$server ... $time" elif [[ $VERBOSE ]]; then echo "# $server ... $time" elif [[ $TIMESONLY ]]; then echo -n " *" fi fi done finaloutput # vim: set ts=2 sw=2 noet: