Radix cross Linux

     5         kx #!/bin/sh
     5         kx 
     5         kx # Preserve new files
     5         kx install_file() {
     5         kx   NEW="$1"
     5         kx   OLD="`dirname $NEW`/`basename $NEW .new`"
     5         kx   # If there's no file by that name, mv it over:
     5         kx   if [ ! -r $OLD ]; then
     5         kx     mv $NEW $OLD
     5         kx   elif [ "`cat $OLD | md5sum`" = "`cat $NEW | md5sum`" ]; then # toss the redundant copy
     5         kx     rm $NEW
     5         kx   fi
     5         kx   # Otherwise, we leave the .new copy for the admin to consider...
     5         kx }
     5         kx 
     5         kx preserve_perms() {
     5         kx   NEW="$1"
     5         kx   OLD="$(dirname $NEW)/$(basename $NEW .new)"
     5         kx   if [ -e $OLD ]; then
     5         kx     cp -a $OLD ${NEW}.incoming
     5         kx     cat $NEW > ${NEW}.incoming
     5         kx     touch -r $NEW ${NEW}.incoming
     5         kx     mv ${NEW}.incoming $NEW
     5         kx   fi
     5         kx   install_file $NEW
     5         kx }
     5         kx 
     5         kx 
     5         kx # arg 1:  the new package version
     5         kx pre_install() {
     5         kx   /bin/true
     5         kx }
     5         kx 
     5         kx # arg 1:  the new package version
     5         kx post_install() {
     5         kx   install_file etc/grub.d/40_custom.new
     5         kx   rm -f etc/grub.d/40_custom.new
     5         kx   install_file etc/default/grub.new
     5         kx 
     5         kx   #
     5         kx   # NOTE:
     5         kx   #   'install-info' can work using relative paths and we can make use build machine
     5         kx   #   utility during installation to the some partition and use target 'install-info'
     5         kx   #   during installation directly on the running target machine.
     5         kx   #
     5         kx   if [ -x /usr/bin/install-info ] ; then
     5         kx     install-info --info-dir=usr/share/info usr/share/info/grub.info.gz     2>/dev/null
     5         kx     install-info --info-dir=usr/share/info usr/share/info/grub-dev.info.gz 2>/dev/null
     5         kx   elif ! grep "(grub)" usr/share/info/dir 1> /dev/null 2> /dev/null ; then
     5         kx   cat << EOF >> usr/share/info/dir
     5         kx 
     5         kx Kernel
     5         kx * grub-dev: (grub-dev).         The GRand Unified Bootloader Dev
     5         kx * grub-install: (grub)Invoking grub-install.
     5         kx                                 Install GRUB on your drive
     5         kx * grub-mkconfig: (grub)Invoking grub-mkconfig.
     5         kx                                 Generate GRUB configuration
     5         kx * grub-mkpasswd-pbkdf2: (grub)Invoking grub-mkpasswd-pbkdf2.
     5         kx * grub-mkrelpath: (grub)Invoking grub-mkrelpath.
     5         kx * grub-mkrescue: (grub)Invoking grub-mkrescue.
     5         kx                                 Make a GRUB rescue image
     5         kx * grub-mount: (grub)Invoking grub-mount.
     5         kx                                 Mount a file system using GRUB
     5         kx * grub-probe: (grub)Invoking grub-probe.
     5         kx                                 Probe device information
     5         kx * grub-script-check: (grub)Invoking grub-script-check.
     5         kx * GRUB: (grub).                 The GRand Unified Bootloader
     5         kx EOF
     5         kx   fi
     5         kx }
     5         kx 
     5         kx # arg 1:  the new package version
     5         kx # arg 2:  the old package version
     5         kx pre_update() {
     5         kx   /bin/true
     5         kx }
     5         kx 
     5         kx # arg 1:  the new package version
     5         kx # arg 2:  the old package version
     5         kx post_update() {
     5         kx   post_install
     5         kx }
     5         kx 
     5         kx # arg 1:  the old package version
     5         kx pre_remove() {
     5         kx   if [ -x /usr/bin/install-info ] ; then
     5         kx     install-info --delete --info-file=usr/share/info/grub-dev.info.gz --dir-file=usr/share/info/dir 2> /dev/null || /bin/true
     5         kx     install-info --delete --info-file=usr/share/info/grub.info.gz     --dir-file=usr/share/info/dir 2> /dev/null || /bin/true
     5         kx   fi
     5         kx }
     5         kx 
     5         kx # arg 1:  the old package version
     5         kx post_remove() {
     5         kx   /bin/true
     5         kx }
     5         kx 
     5         kx 
     5         kx operation=$1
     5         kx shift
     5         kx 
     5         kx $operation $*