Subversion Repositories livecd

#!/bin/bash
#
################################################################
#
# Used to build a MINI LiveCD
# - save diskspace by moving folders to /mini
#   disable this with "-nomove" option !
# - direct login to icewm as LOCALUSER
#   or as root (option -rootlogin)
# - configure icewm
# - run "minil-livecd -restore" to restore files from /mini again
#
# Urs Beyerle
#
################################################################

# source livecd.conf
. livecd.conf

###############################################################

### -----------------------------------------------------------
### List of folders (or files) to move:
### -----------------------------------------------------------
FOLDERS="/usr/src \
         /usr/share/doc \
         /usr/share/info \
         /usr/share/anaconda \
         /usr/share/gdm \
         /var/cache/yum \
         /etc/cups/ppds.dat \
         /etc/gconf/gconf.xml.defaults \
         /usr/X11R6/lib/X11/doc \
         /usr/share/vim/vim70/doc \
         /usr/share/vim/vim70/lang \
         /usr/share/emacs/21.4/etc/DOC-21.4.1 \
         /usr/share/pixmaps/nautilus \
         /usr/share/cups \
         /usr/share/icons"

#        /var/lib/rpm \

### -----------------------------------------------------------
### locales we don't need, we keep: en, de, fr
### ----------------------------------------------------------- 

### /usr/share/locale
### ----------------------------------------------------------- 

# do we restore?
if [ -d /mini/usr/share/locale/zh_TW.Big5 ]; then
    MOVE_LOCALE=$( find /mini/usr/share/locale/* -maxdepth 0 -type d  \
              | while read f; do echo ${f##/mini}; done )
else
    MOVE_LOCALE=$( find /usr/share/locale/* -maxdepth 0 -type d \
              | grep -v en | grep -v de | grep -v fr )
fi

# add to FOLDERS
FOLDERS="$FOLDERS $MOVE_LOCALE"      

### /mini/usr/share/backgrounds/images/
mv /mini/usr/share/backgrounds/images/* /usr/share/backgrounds/images/ 2>/dev/null 

### /usr/lib/locale
### ----------------------------------------------------------- 

# do we restore?
if [ -d /mini/usr/lib/locale/zh_TW ]; then
    MOVE_LOCALE=$( find /mini/usr/lib/locale/* -maxdepth 0 -type d  \
              | while read f; do echo ${f##/mini}; done )
else
    MOVE_LOCALE=$( find /usr/lib/locale/* -maxdepth 0 -type d \
              | grep -v en | grep -v de | grep -v fr )
fi

# add to FOLDERS
FOLDERS="$FOLDERS $MOVE_LOCALE"      

### /usr/share/i18n/locales
### ----------------------------------------------------------- 

# do we restore?
if [ -d /mini/usr/share/i18n/locales/zh_TW ]; then
    MOVE_LOCALE=$( find /mini/usr/share/i18n/locales/*  -maxdepth 0 -type f \
              | while read f; do echo ${f##/mini}; done )
else
    MOVE_LOCALE=$( find /usr/share/i18n/locales/*  -maxdepth 0 -type f \
              | grep -v en | grep -v de | grep -v fr | grep -v POSIX )
fi

# add to FOLDERS
FOLDERS="$FOLDERS $MOVE_LOCALE"      


### -----------------------------------------------------------
function usage() {

   ## Usage
   # ----------------------------------------------------------

   cat <<EOF

   Options:

    -h:         print this screen
    -restore:   restores the folders saved in /mini
    -nomove:    do not move to /mini
    -rootlogin: login directly as root and not as LOCALUSER
    -psi:       build for PSI

EOF

}


### -----------------------------------------------------------
### read options from command-line
RESTORE=""
while [ $# -gt 0 ]; do

    case "$1" in
       -h)
            usage; exit;;
       -restore)
            RESTORE="-restore"; shift; continue;;
       -psi)
            PSI="-psi"; shift; continue;;
       -nomove)
            NOMOVE="-nomove"; shift; continue;;
       -rootlogin)
            ROOTLOGIN="-rootlogin"; shift; continue;;
       *)
            usage; exit;;
    esac

done


### -----------------------------------------------------------
### LOCALUSER name?
if [ $PSI ]; then 
    LOCALUSER=l_psi
else
    LOCALUSER=sluser
fi


### -----------------------------------------------------------
### Modifications for Mini LiveCD
if [ ! $RESTORE ]; then
    
    if [ ! $NOMOVE ]; then
        echo
        echo "--------------------------------------------"
        echo "Save diskspace by moving folders to /mini:"
        echo "--------------------------------------------"

        mkdir -p /mini
        for folder in $FOLDERS; do
            echo "Move $folder"
            name=$( basename $folder )
            base=${folder%$name}
            mkdir -p /mini/${base}
            mv ${folder} /mini${base}
        done
    fi

    ### force default runlevel equal 3, if neither xdm, kdm nor gdm is installed
    which xdm >/dev/null 2>&1 || which kdm >/dev/null 2>&1 || which gdm >/dev/null 2>&1
    if [ "$?" != "0" ]; then
        sed -i "s/id\:.\:initdefault/id\:3\:initdefault/" /etc/inittab
    fi

    ### enable auto login
    echo "Enable auto login..."
    customize/livecd-autologin -u $LOCALUSER on >/dev/null 2>&1
    echo "### enable auto login for user $LOCALUSER (livecd-autologin)" >> /etc/rc.d/init.d/runlast
    echo "livecd-autologin -u $LOCALUSER on >/dev/null 2>&1"            >> /etc/rc.d/init.d/runlast

    ### run updatedb
    echo "Run updatedb..."
    . /etc/updatedb.conf 2>/dev/null
    rpm -q mlocate >/dev/null
    if [ "$?" = "0" ]; then
        /usr/bin/updatedb -e "/media /sfs /tmp /boot /livecd /home /net /trunk"
    else
        /usr/bin/updatedb -e /media,/tmp,/boot,/livecd,/home,/net,/trunk
    fi
    echo "done."



### -----------------------------------------------------------
### Restores some modifications
else

    if [ ! $NOMOVE ]; then
        ### remove default html page
        rm /usr/share/doc/HTML/index.html
        rm -rf /usr/share/doc/livecd
        rmdir /usr/share/doc/HTML
        rmdir /usr/share/doc

        echo
        echo "--------------------------------------------"
        echo "Restore folders saved in /mini:"
        echo "--------------------------------------------"
        for folder in $FOLDERS; do
            echo "Restore $folder"
            name=$( basename $folder )
            base=${folder%$name}
            mv /mini${folder} ${base}
        done
        mv /mini/usr/share/i18n/locales/* /usr/share/i18n/locales/
        echo "done."
    fi

    ### disable auto login
    echo "Disable auto login..."
    customize/livecd-autologin -u $LOCALUSER off >/dev/null 2>&1
    sed -i "/.*livecd-autologin.*/d" /etc/rc.d/init.d/runlast

fi


echo "--------------------------------------------"
echo "End of mini-livecd.sh" 
echo "--------------------------------------------"
echo