mdw@git.distorted.org.uk Git - distorted-chroot/blob - mess/maint/mkchrootconf

   1 #! /bin/sh -e
   2
   3 unset vg snapopt defdist defarch mirror scratchbase
   4 badp=nil
   5 while getopts "a:d:l:v:" opt; do
   6   case $opt in
   7     a) defarch=$OPTARG ;;
   8     d) defdist=$OPTARG ;;
   9     l) snapopt=$OPTARG ;;
  10     v) vg=$OPTARG ;;
  11     *) badp=t ;;
  12   esac
  13 done
  14 shift $(( $OPTIND - 1 ))
  15 case $# in 0) badp=t ;; esac
  16 case $badp in
  17   t)
  18     cat >&2 <<EOF
  19 usage: $0 [-a ARCH] [-d DIST] [-l SNAPOPT] [-v VG]
  20         DIST-ARCH ...
  21 EOF
  22     exit 1
  23     ;;
  24 esac
  25 for arg in "$@"; do
  26   case $arg in *-*-*) echo >&2 "$0: bad chroot name \`$arg'"; exit 1 ;; esac
  27 done
  28 if [ ! -d /dev/$vg/ ]; then echo >&2 "$0: no volume group \`$vg'"; exit 1; fi
  29
  30 : ${vg=vg-$(hostname)} ${snapopt=-L4g}
  31 : ${defdist=$(apt-config dump |
  32     sed -n '/^APT::Default-Release "\(.*\)";$/s//\1/p')}
  33 : ${defarch=$(dpkg-architecture -qDEB_HOST_ARCH_CPU)}
  34
  35 for i in $(set | sed -n '/^nickmap_/s/=.*//p'); do unset $i; done
  36 while read canon aliases; do
  37   for alias in $aliases; do
  38     eval "nickmap_$canon=\"\${nickmap_$canon+\$nickmap_$canon }$alias\""
  39   done
  40 done <<EOF
  41 jessie          oldstable
  42 stretch         stable
  43 buster          testing
  44 sid             unstable
  45 EOF
  46
  47 cat <<EOF
  48 ### -*-conf-*- GENERATED by mkchrootconf
  49 EOF
  50 for arg in "$@"; do
  51   dist=${arg%-*} arch=${arg#*-}
  52   eval "nick=\$nickmap_$dist"
  53
  54   cat <<EOF
  55
  56 [$arg]
  57 EOF
  58
  59   unset alias
  60   for n in $nick; do alias=${alias+$alias,}$n-$arch; done
  61   case $arch in
  62     $defarch) for n in $dist $nick; do alias=${alias+$alias,}$n; done ;;
  63   esac
  64   case $dist in
  65     $defdist) alias=${alias+$alias,}$arch ;;
  66   esac
  67   case ${alias+t} in
  68     t)
  69       cat <<EOF
  70 aliases=$alias
  71 EOF
  72       ;;
  73   esac
  74
  75   case $arch in
  76     i386)
  77       cat <<EOF
  78 personality=linux32
  79 EOF
  80       ;;
  81     amd64)
  82       cat <<EOF
  83 personality=linux
  84 EOF
  85       ;;
  86   esac
  87
  88   cat <<EOF
  89 type=lvm-snapshot
  90 description=Debian $dist/$arch autobuilder
  91 device=/dev/$vg/$dist-$arch
  92 lvm-snapshot-options=$snapopt
  93 mount-options=-onosuid,data=writeback,barrier=0,commit=3600,noatime
  94 location=/fs
  95 groups=root,sbuild
  96 root-groups=root,sbuild
  97 source-groups=root
  98 source-root-groups=root
  99 profile=sbuild
 100 EOF
 101 done