vendor/getinfo

   1 #!/bin/sh
   2 # small helper to extract information form *.ent files
   3
   4 BASEDIR="$(readlink -f "$(dirname $0)")"
   5
   6 getcurrent() {
   7         # search for an exact match to use the correct sources.list example
   8         cd $BASEDIR
   9         DISTROS="$(find -mindepth 1 -maxdepth 1 -type d | cut -d'/' -f 2)"
  10         for DISTRO in $DISTROS; do
  11                 if dpkg-vendor --is $DISTRO; then
  12                         echo $DISTRO
  13                         return 0
  14                 fi
  15         done
  16
  17         # if we haven't found a specific, look for a deriving
  18         # we do ubuntu and debian last as those are the biggest families
  19         # and would therefore potentially 'shadow' smaller families
  20         # (especially debian as it sorts quiet early)
  21         for DISTRO in $DISTROS; do
  22                 if [ "$DISTRO" = 'debian' -o "$DISTRO" = 'ubuntu' ]; then continue; fi
  23                 if dpkg-vendor --derives-from $DISTRO; then
  24                         echo $DISTRO
  25                         return 0
  26                 fi
  27         done
  28
  29         # Do the ubuntu/debian dance we talked about
  30         if dpkg-vendor --derives-from ubuntu; then
  31                 echo $DISTRO
  32                 return 0
  33         fi
  34
  35         echo debian
  36         return 0
  37 }
  38
  39 INFO="$(readlink -f "${BASEDIR}/$(getcurrent)/apt-vendor.ent")"
  40 VERBATIM="${BASEDIR}/../doc/apt-verbatim.ent"
  41
  42 if [ -z "$INFO" ] || [ ! -e "$INFO" ]; then
  43         echo >&2 'The current vendor is not valid or not chosen by the buildsystem yet.'
  44         exit 1
  45 fi
  46
  47 getrawfield() {
  48         awk "/<!ENTITY $1/ {f=NR} f && NR-1==f { print; exit 0 }" RS='"' "${2:-$INFO}"
  49 }
  50
  51 getfield() {
  52         local FIELD="$(getrawfield "$@")"
  53         FIELD="${FIELD#*>}"
  54         echo "${FIELD%<*}"
  55 }
  56
  57 case "$1" in
  58 debian-stable-codename|debian-oldstable-codename|debian-testing-codename|ubuntu-codename)
  59         getrawfield "$1" "$VERBATIM"
  60         ;;
  61 keyring-package|keyring-filename|keyring-master-filename|keyring-removed-filename|keyring-uri|current-codename)
  62         exec $0 'vendor' "$@"
  63         ;;
  64 vendor)
  65         getfield "$2"
  66         ;;
  67 verbatim)
  68         getfield "$2" "$VERBATIM"
  69         ;;
  70
  71 current)
  72         getcurrent
  73         ;;
  74 *)
  75         echo >&2 "Unknown data field $1 requested"
  76         exit 2
  77         ;;
  78 esac