build/f_isoroot/f_repobuild/select_ubuntu_repo.sh

   1 #!/bin/bash
   2
   3 UBUNTU_DISTRO="xenial"
   4 BLACKLIST="http://mirrors.se.eu.kernel.org/ubuntu/"
   5 #BLACKLIST+=" http://foo.bar"
   6
   7 cleanup() {
   8     rm -f $TMPFILE
   9 }
  10
  11 debugmsg() {
  12     test -n "$DEBUG" && echo "$@" >&2
  13 }
  14
  15
  16 # Check if url is blacklisted in this script
  17 blacklisted () {
  18   for blackurl in $BLACKLIST
  19   do
  20     if [ "$1" == "$blackurl" ]; then
  21       return 0
  22     fi
  23   done
  24   return 1
  25 }
  26
  27
  28 # Check mirror's integrity
  29 check_mirror () {
  30     mirror=$1
  31     status=0
  32     for packdir in dists/${UBUNTU_DISTRO}-updates/main/binary-amd64 \
  33         dists/${UBUNTU_DISTRO}-updates/restricted/binary-amd64 \
  34         dists/${UBUNTU_DISTRO}-updates/universe/binary-amd64 \
  35         dists/${UBUNTU_DISTRO}-updates/multiverse/binary-amd64 \
  36         dists/${UBUNTU_DISTRO}-security/main/binary-amd64 \
  37         dists/${UBUNTU_DISTRO}-security/restricted/binary-amd64 \
  38         dists/${UBUNTU_DISTRO}-security/universe/binary-amd64 \
  39         dists/${UBUNTU_DISTRO}-security/multiverse/binary-amd64 \
  40         dists/${UBUNTU_DISTRO}-proposed/main/binary-amd64 \
  41         dists/${UBUNTU_DISTRO}-proposed/restricted/binary-amd64 \
  42         dists/${UBUNTU_DISTRO}-proposed/universe/binary-amd64 \
  43         dists/${UBUNTU_DISTRO}-proposed/multiverse/binary-amd64 \
  44         dists/${UBUNTU_DISTRO}/main/binary-amd64 \
  45         dists/${UBUNTU_DISTRO}/restricted/binary-amd64 \
  46         dists/${UBUNTU_DISTRO}/universe/binary-amd64 \
  47         dists/${UBUNTU_DISTRO}/multiverse/binary-amd64 \
  48         dists/${UBUNTU_DISTRO}-backports/main/binary-amd64 \
  49         dists/${UBUNTU_DISTRO}-backports/restricted/binary-amd64 \
  50         dists/${UBUNTU_DISTRO}-backports/universe/binary-amd64 \
  51         dists/${UBUNTU_DISTRO}-backports/multiverse/binary-amd64
  52     do
  53         for packfile in Release Packages.gz
  54         do
  55             if [ $status -ne 1 ]; then
  56                 curl --output /dev/null --silent --head --fail \
  57                     $mirror/$packdir/$packfile
  58                 if [ $? -ne 0 ]; then
  59                     debugmsg "$mirror: Faulty (at least missing $packdir/$packfile)"
  60                     status=1
  61                 fi
  62             fi
  63         done
  64     done
  65     return $status
  66 }
  67
  68 if [ "$1" == "-d" ]; then
  69     DEBUG=1
  70 fi
  71
  72 # Hardcode for testing purposes
  73 # DEBUG=1
  74
  75 TMPFILE=$(mktemp /tmp/mirrorsXXXXX)A
  76 trap cleanup exit
  77
  78 # Generate a list of mirrors considered as "up"
  79 curl -s  https://launchpad.net/ubuntu/+archivemirrors | \
  80     grep -P -B8 "statusUP|statusONE|statusSIX" | \
  81     grep -o -P "(f|ht)tp.*\""  | \
  82     sed 's/"$//' | sort | uniq > $TMPFILE
  83
  84 # Iterate over "close" mirror, check that they are considered up
  85 # and sane.
  86 for url in $(curl -s http://mirrors.ubuntu.com/mirrors.txt)
  87 do
  88     if ! grep -q $url $TMPFILE; then
  89         debugmsg "$url Faulty (detected by Ubuntu)"
  90     elif blacklisted $url; then
  91         debugmsg "$url blacklisted"
  92     elif [ -z $BESTURL ]; then
  93         if grep -q $url $TMPFILE && check_mirror $url; then
  94             debugmsg "$url: OK (setting as primary URL)"
  95             BESTURL=$url
  96             test -z "$DEBUG" && break
  97         fi
  98     else
  99         grep -q $url $TMPFILE && check_mirror $url && debugmsg "$url: OK"
 100     fi
 101 done
 102
 103 echo "$BESTURL"