core/scripts/splash_geninitramfs.in

   1 #!/bin/bash
   2 #
   3 # splash_geninitramfs -- an utility to create initramfs images for use with fbsplash
   4 #
   5 # Copyright (C) 2004-2007, Michal Januszewski <spock@gentoo.org>
   6 #
   7 # This file is a part of the splashutils package.
   8 #
   9 # This file is subject to the terms and conditions of the GNU General Public
  10 # License v2.  See the file COPYING in the main directory of this archive for
  11 # more details.
  12 #
  13
  14 cleanup()
  15 {
  16         rm -rf ${workdir}
  17 }
  18
  19 usage()
  20 {
  21         cat <<EOTB
  22 splash_geninitramfs/splashutils-@PACKAGE_VERSION@
  23 Usage: splash_geninitramfs [options] [--all|theme ...]
  24
  25 Main operation modes:
  26   -g, --generate=IMG  generate an initramfs image with all necessary files
  27   -a, --append=IMG    append a theme and helper files (if necessary)
  28                       to an initramfs image
  29   -c, --copy=DIR      copy all necessary files into the specified directory;
  30                       DIR should point to the root directory of an initramfs
  31   -o, --overlay=DIR   include the contents of DIR in the initramfs image
  32   -h, --help          show this help message
  33
  34 Options:
  35   -r, --res=RES   copy data for specific resolutions only; RES is a
  36                   comma-separated list of the resolutions for which the images
  37                   are to be copied
  38   -v, --verbose   verbose output
  39       --no8bpp    ignore 8bpp images (can save a lot of space)
  40 EOTB
  41
  42 #   -d              use dynamically linked splash helper
  43 }
  44
  45 printv()
  46 {
  47         if [ $verbose -gt 0 ]; then
  48                 echo "$*"
  49         fi
  50 }
  51
  52 put_item()
  53 {
  54         item="$1"
  55
  56         if [ "${item:0:1}" == "/" ]; then
  57                 cp -pRH --parents "${item}" "${imgdir}"
  58         else
  59                 cp -pRH --parents "${themedir}/${theme}/${item}" "${imgdir}"
  60         fi
  61 }
  62
  63 themedir="@themedir@"
  64 declare -a themes
  65 mode="h"
  66 splash_hlp="@sbindir@/fbcondecor_helper"
  67 res=""
  68 overlay=""
  69 verbose=0
  70 index=0
  71 no8bpp=0
  72
  73 args="$@"
  74 temp=`getopt -l no8bpp,all,generate:,append:,copy:,overlay:,help,verbose,res: a:g:c:r:o:hv "$@"`
  75
  76 if [ $? != 0 ]; then
  77         usage; exit 2
  78 fi
  79
  80 eval set -- "$temp"
  81
  82 for i ; do
  83         case "$i" in
  84                 -a|--append)    mode='a'; img="$2"; shift; shift;;
  85                 -g|--generate)  mode='g'; img="$2"; shift; shift;;
  86                 -c|--copy)              mode='c'; destdir="$2"; shift; shift;;
  87                 -h|--help)              usage; exit 2;;
  88                 -r|--res)               res=${2/,/ }; shift; shift;;
  89                 -v|--verbose)   verbose=$(($verbose + 1)); shift;;
  90                 -o|--overlay)   overlay="$2"; shift; shift;;
  91                 --no8bpp)               no8bpp=1; shift;;
  92                 --)                             shift; break;;
  93                 --all)
  94                                 shift;
  95                                 for i in ${themedir}/* ; do
  96                                         if [ ! -d "$i" ] ; then
  97                                                 continue
  98                                         fi
  99                                         themes[$index]="`basename "$i"`"
 100                                         let "index++"
 101                                 done;;
 102         esac
 103 done
 104
 105 if [ "$mode" == "h" ]; then
 106         usage ; exit 2
 107 fi
 108
 109 if [ $index -eq 0 ]; then
 110         for i ; do
 111                 themes[$index]="$i"
 112                 let "index++"
 113         done
 114 fi
 115
 116 if [ $index -eq 0 ]; then
 117         echo "No themes specified." 1>&2 ; exit 5
 118 fi
 119
 120 if [ "$mode" == "c" ]; then
 121         if [ ! -d $destdir ]; then
 122                 echo "Destination directory does not exist." 1>&2 ; exit 3
 123         fi
 124         imgdir=$destdir
 125 else
 126         if [ "$mode" == "a" ] && [ ! -e $img ]; then
 127                 echo "Specified image file does not exist." 1>&2 ; exit 4
 128         fi
 129
 130         workdir=${TMPDIR-/tmp}/splash.$$.$RANDOM
 131
 132         if (umask 077 && mkdir $workdir); then
 133                 trap "cleanup" EXIT
 134         else
 135                 echo "Could not create temporary directory! Exiting." 1>&2 ; exit 1
 136         fi
 137 fi
 138
 139 if [ "$mode" != "c" ]; then
 140         imgdir="${workdir}/img"
 141         mkdir "${imgdir}"
 142 fi
 143
 144 if [ "$mode" == "a" ]; then
 145         printv "o Unpacking $img.."
 146         cp "$img" "${imgdir}"
 147         (cd "${imgdir}"; (gunzip -c "$(basename $img)" 2>/dev/null || cat "$(basename $img)") | cpio -idm --no-absolute-filenames --quiet -H newc)
 148         rm -f "${imgdir}/$(basename $img)"
 149 fi
 150
 151 printv "o Creating directory structure.."
 152 mkdir -p ${imgdir}/{dev,dev/fb,dev/misc,dev/vc,$themedir,lib/splash/proc,root,sbin,lib/splash/sys}
 153
 154 if [ $EUID == 0 ]; then
 155         [[ ! -e "${imgdir}/dev/null" ]]         && mknod "${imgdir}/dev/null" c 1 3
 156         [[ ! -e "${imgdir}/dev/console" ]]      && mknod "${imgdir}/dev/console" c 5 1
 157         [[ ! -e "${imgdir}/dev/tty0" ]]         && mknod "${imgdir}/dev/tty0" c 4 0
 158 else
 159         echo "Since you are running this script as a non-root user, no device nodes" 1>&2
 160         echo "will be created in the initramfs.  Make sure your initramfs contains" 1>&2
 161         echo "at least the following nodes: /dev/null, /dev/console, /dev/tty0." 1>&2
 162 fi
 163
 164 if [ ! -e ${splash_hlp} ]; then
 165         echo "${splash_hlp} does not exist." 1>&2 ; exit 4
 166 fi
 167
 168 printv "o Copying ${splash_hlp}.."
 169 cp "${splash_hlp}" "${imgdir}@sbindir@"
 170 ln -sf "${splash_hlp}" "${imgdir}@sbindir@/splash_helper"
 171
 172 res=${res//,/ }
 173
 174 printv "o Copying themes.."
 175 for (( i=0 ; i < index ; i++ )) ; do
 176         theme=${themes[$i]}
 177
 178         printv "  - ${theme}"
 179
 180         # check if the user specified which resolutions are accepted
 181         # (default: all res)
 182         if [ -z "$res" ]; then
 183                 res=$(cd ${themedir}/${theme} ; ls *cfg | sed -e 's/.cfg//g')
 184         fi
 185
 186         for j in $res ; do
 187                 if [ ! -e "${themedir}/${theme}/${j}.cfg" ]; then
 188                         echo "Warning: config file for theme '${theme}', resolution ${j} does not exist!" 1>&2
 189                         continue
 190                 fi
 191
 192                 cp -pRH --parents "${themedir}/${theme}/${j}.cfg" "${imgdir}"
 193
 194                 if [[ ${no8bpp} == 0 ]]; then
 195                         t="[0-9*]"
 196                 else
 197                         t=""
 198                 fi
 199
 200                 # config file parsing
 201                 pics=`cat "${themedir}/${theme}/${j}.cfg" | \
 202                       sed -r -e "/(^(silent)?jpeg=)|(^(silent)?pic${t}*=)/! d" \
 203                              -e 's/[a-z0-9]+=(.*)/\1/'`
 204                 for pic in $pics ; do
 205                         put_item "${pic}"
 206                 done
 207
 208                 icons=`cat "${themedir}/${theme}/${j}.cfg" | \
 209                        egrep -v '^#' | grep 'icon ' | awk '{print $2}'`
 210                 for icon in ${icons} ; do
 211                         put_item "${icon}"
 212                 done
 213
 214                 fonts=`cat "${themedir}/${theme}/${j}.cfg" | \
 215                        egrep -v '^#' | grep 'text ' | grep -o '[^ ]\+\.ttf'`
 216                 for font in ${fonts} ; do
 217                         put_item "${font}"
 218                 done
 219
 220                 font=`cat "${themedir}/${theme}/${j}.cfg" | egrep -v '^#' | grep 'text_font='`
 221                 font=${font#*=}
 222                 if [[ -n "${font}" ]]; then
 223                         put_item "${font}"
 224                 else
 225                         put_item "${themedir}/luxisri.ttf"
 226                 fi
 227         done
 228 done
 229
 230 if [ -n "${overlay}" ]; then
 231         printv "o Adding files from overlay: $overlay"
 232         cp -pRH ${overlay}/* "${imgdir}"
 233 fi
 234
 235 printv "o Creating initramfs image.."
 236 if [ "$mode" == "g" ] || [ "$mode" == "a" ]; then
 237         (cd "${imgdir}" ; find . | cpio --quiet -o -H newc | gzip -9 >../img.cpio.gz)
 238         mv "${workdir}/img.cpio.gz" "${img}"
 239 fi
 240
 241 exit 0
 242
 243 # vim: set ts=4 sts=4 :