misc/vserver/install

   1 #!/bin/bash
   2 # --- T2-COPYRIGHT-NOTE-BEGIN ---
   3 # This copyright note is auto-generated by ./scripts/Create-CopyPatch.
   4 #
   5 # T2 SDE: misc/vserver/install
   6 # Copyright (C) 2006 Juergen "George" Sawinski
   7 # Copyright (C) 2006 The T2 SDE Project
   8 #
   9 # More information can be found in the files COPYING and README.
  10 #
  11 # This program is free software; you can redistribute it and/or modify
  12 # it under the terms of the GNU General Public License as published by
  13 # the Free Software Foundation; version 2 of the License. A copy of the
  14 # GNU General Public License can be found in the file COPYING.
  15 # --- T2-COPYRIGHT-NOTE-END ---
  16
  17
  18 # TODO:
  19 #  - implement "update" mode
  20 #  - add "check" mode
  21 #  - implement $admdir outside $root
  22 #  - post-installation methods
  23 #  - add rootfs alike copy_and_parse functionality
  24
  25 # root directory defaults
  26 root=./test #FIXME
  27 vdirbase=/etc/vservers/.defaults/vdirbase
  28 guest=
  29
  30 # files (selections) to install
  31 files=
  32 selection=
  33
  34 # installer defaults
  35 method=install
  36 installer=mine
  37
  38 # misc defaults
  39 verbose=0
  40
  41 pkgdir=
  42 pkgs=
  43
  44 admdir=
  45
  46 templates=
  47 templatedir=./${0%/*}/templates #FIXME /etc/vserver/.distributions/t2/templates
  48 patterndir=./${0%/*}/patterns   #FIXME /etc/vserver/.distributions/t2/patterns
  49
  50 #############################################################################
  51 usage() {
  52 cat << EOF
  53 vserver-guest-install [options] [packages]
  54
  55 Options:
  56   Methods
  57     -i,-install                Install packages (default)
  58     -u,-update                 Update packages
  59     -r,-remove                 Remove packages
  60     -c,-check                  Check packages
  61
  62   VServer setup
  63     -g,-guest <name of guest>  Name of the vserver guest
  64     -R,-root <root>            Root installation directory (./test)
  65
  66   Package selection
  67     -t,-template <template>    Template name or file
  68
  69   Miscellaneous:
  70     -v                         Increase verbosity level
  71     -pkgdir                    Package directory
  72     -admdir                    Set alternate /var/adm directory
  73                                (a link into the install root is created)
  74 EOF
  75 }
  76
  77 # parse options
  78 while [ "$1" ]; do
  79         case "$1" in
  80         -i|-install)  method=install ;;
  81         -u|-update)   method=update  ;;
  82         -r|-remove)   method=remove  ;;
  83
  84         -g|-guest)    guest=$2 ; root=$vdirbase/$2 ; shift ;;
  85         -R|-root)     root=$2 ; shift ;;
  86
  87         -t|-template) templates="$templates $2" ; shift ;;
  88
  89         -v)           verbose=$(( $verbose + 1 )) ;;
  90         -vv)          verbose=$(( $verbose + 2 )) ;;
  91         -vvv)         verbose=$(( $verbose + 3 )) ;;
  92         -pkgdir)      pkgdir=$2 ; shift ;;
  93         -admdir)      admdir=$2 ; shift ;;
  94
  95         -*)           usage ; exit ;;
  96
  97         *)            pkgs="$pkgs $1" ;;
  98         esac
  99         shift
 100 done
 101
 102 #############################################################################
 103 # screen logging
 104 dbg() {
 105         [ $1 -le $verbose ] || return
 106         msg info "$@"
 107 }
 108
 109 msg() {
 110         local lvl;
 111         local t=$1 ; shift
 112         case "$t" in
 113         head) echo "=== $*" 1>&2 ;;
 114         status) echo "-> $*" 1>&2 ;;
 115         warn) echo "!!! $*"  1>&2 ;;
 116         error) echo "*** $*" 1>&2 ;;
 117         info) lvl=$1; shift ; echo "[$lvl] $*" 1>&2 ;;
 118         esac
 119 }
 120
 121 #############################################################################
 122 # parse templates
 123 parse_template() {
 124         local line
 125
 126         dbg 2 "  Parsing template \`$1'"
 127
 128         while read line; do
 129                 if [[ $line = .include* ]]; then
 130                         parse_template ${line/.include/}
 131                 else
 132                         echo $line
 133                 fi
 134         done < <(egrep -v '(#.*|^)$' $templatedir/$1)
 135 }
 136
 137 dbg 1 "Assembling templates...."
 138 pfile=`mktemp`
 139 tmpfile=`mktemp`
 140 for tmpl in $templates; do
 141         parse_template $tmpl >> $tmpfile
 142 done
 143 echo $pkgs >> $tmpfile
 144 sort -u < $tmpfile > $pfile
 145 pkgs=" `cat $pfile` "
 146 rm -f $tmpfile $pfile
 147
 148 dbg 1 "Done."
 149
 150 #############################################################################
 151 # parse package.db
 152 pkgdb=$pkgdir/packages.db
 153
 154 block_end=$'\004'
 155 entry_end=$'\027'
 156
 157 # _pkgdb_node pkg
 158 _pkgdb_node() {
 159         zcat $pkgdb | egrep "^$1$" -A 10000 | grep "$block_end" -m 1 -B 10000
 160 }
 161
 162 # extract_package_node <package> <dir>
 163 extract_pkg_node() {
 164         local state=0
 165         local line
 166
 167         _pkgdb_node $1 | while read line; do
 168                 if [ "$line" = "$entry_end" -o "$line" = "$block_end" ]; then
 169                         state=$(( $state + 1 ))
 170                 else
 171                         case "$state" in
 172                         1) echo $line >> $2/$1.desc ;;
 173                         2) echo $line >> $2/$1.deps ;;
 174                         3) echo $line >> $2/$1.md5 ;;
 175                         esac
 176                 fi
 177         done
 178 }
 179
 180 #############################################################################
 181 # exclude pattern
 182
 183 # pattern <pkg>
 184 pattern() {
 185         local f pat
 186         (
 187                 for f in default $*; do
 188                         [ -f $patterndir/$f ] && egrep -v "(^|#.*)$" $patterndir/$f
 189                 done
 190         ) | while read pat; do
 191                 case "$installer" in
 192                 mine) echo -n "-x '$pat' " ;;
 193                 esac
 194         done
 195 }
 196
 197 #############################################################################
 198 # find the tar file
 199
 200 # archive <package>
 201 archive() {
 202         local ext
 203         local ver
 204
 205         for ext in tar.bz2; do # FIXME list of extensions!!!
 206                 if [ -f $pkgdir/$1.$ext ]; then
 207                         echo $pkgdir/$1.$ext
 208                         return
 209                 else
 210                         ver="`_pkgdb_node $1 | fgrep '[V]'`" ; ver=${ver##* }
 211                         if [ -f $pkgdir/$1-$ver.$ext ]; then
 212                                 echo $pkgdir/$1-$ver.$ext
 213                                 return
 214                         fi
 215                 fi
 216         done
 217
 218         msg error "Package archive of \`$1' not found."
 219 }
 220
 221 #############################################################################
 222 # install, update, remove packages
 223
 224 msg head "Installing..."
 225 case "$method" in
 226 install)
 227         case "$installer" in
 228         mine)
 229                 [ $verbose -gt 2 ] && v="-v"
 230
 231                 for p in $pkgs; do
 232                         pkg=${p/\%*/}
 233                         msg status "  $pkg"
 234                         dbg 2 mine -i -R $root $( pattern $p ) $( archive $pkg )
 235                         eval mine -i $v -R $root $( pattern $p ) $( archive $pkg )
 236                 done
 237                 ;;
 238         esac
 239         ;;
 240 remove)
 241         case "$installer" in
 242         mine)
 243                 for p in $pkgs; do
 244                         pkg=${p/\%*/}
 245                         echo mine -r -R $vdirbase/$guest $pkg
 246                 done
 247                 ;;
 248         esac
 249         ;;
 250 *)
 251         echo "Not implemented: $method"
 252 esac