#!/bin/bash
# script to upgrade user files to adapt the newest version of the Vine Linux
# by Jun Nishii <jun@vinelinux.org>

VER=6.0
LOG=$HOME/upgrade-log
STAMP=${HOME}/.vine/VineLinux${VER}

chkAndCpFile(){
if [ ! -f $1 ] ;then
   install -m 644 /etc/skel/$1 ${HOME}
   echo "added new config file $1" >> ${LOG}
fi
}

chkAndCpDir(){
if [ ! -d $1 ]; then
   cp -r /etc/skel/$1 ${HOME}
   echo "added new config directory $1" >> ${LOG}
fi
}

Update(){ # checkstr, oldstr, newstr, target
if [ -f $4 ]; then
   TEST=`grep "$1" $4 2>/dev/null`
   if [ -n "${TEST}" ]; then
      echo "replace $2 as $3 in $4" >> ${LOG}
      cp $4 $4.new
      sed -e 's|'"$2"'|'"$3"'|' $4.new > $4
      rm $4.new
      return 0
   fi
fi
return 1
}

chkSame(){ # target newguy
if diff $1 $2 >/dev/null 2>&1; then
    return 0
else
    return 1
fi
}

chkMD5Update(){ # target md5sum newguy
[ ! -f $1 ] && return 1

CHECK=`md5sum $1 | cut -f 1 -d " "`
if [ "${CHECK}" = "$2" ]; then
    cp $3 ${HOME}
    echo "$1 was replaced to new one for Vine Linux ${VER}" >>${LOG}
    return 0
else
    return 1
fi
}

chkMD5Remove(){ # target md5sum
[ ! -f $1 ] && return 1

CHECK=`md5sum $1 | cut -f 1 -d " "`
if [ "${CHECK}" = "$2" ]; then
    mv $1 $1.rpmsave
    echo "$1 was removed(backup as .rpmsave) for Vine Linux ${VER}" >>${LOG}
    return 0
else
    return 1
fi
}

###########################################################################3

#[ -f ${LOG} ] && rm ${LOG}
[ -f ${STAMP} ] && return 0

###########################################################################3

##### Xresources
TARGET=${HOME}/.Xresources
NEW=/etc/skel/.Xresources
chkSame $TARGET $NEW || (
# from 5.x
MD5SUM="663f4824d786af718954f301af301c84"
chkMD5Update $TARGET $MD5SUM $NEW
# from 4.0 4.1 4.2
MD5SUM="d5651f30e2e4fabbaafe3aee60f6bda2"
chkMD5Update $TARGET $MD5SUM $NEW
# from 3.x
MD5SUM="3347c5d3eb5cbb90255b3dc46bd25728"
chkMD5Update $TARGET $MD5SUM $NEW
# from 2.6
MD5SUM="2ba8631e24045a2d76603b91a4aed6c0"
chkMD5Update $TARGET $MD5SUM $NEW
# from 2.6CR
MD5SUM="6958944eb43282ef3cb5f09f0323296f"
chkMD5Update $TARGET $MD5SUM $NEW
)

##### bash_logout
TARGET=${HOME}/.bash_logout
NEW=/etc/skel/.bash_logout
chkSame $TARGET $NEW || (
# from 2.5, 2.6, 3.x, 4.x, 5.x
MD5SUM="d19bbbed9d713f97f487b9ed9ec3f62f"
chkMD5Update $TARGET $MD5SUM $NEW
)

##### bash_profile
TARGET=${HOME}/.bash_profile
NEW=/etc/skel/.bash_profile
chkSame $TARGET $NEW || (
# from 2.5, 2.6, 3.x, 4.x, 5.x
MD5SUM="68fa45c9d56046c8f6ce3c3ea2e8376b"
chkMD5Update $TARGET $MD5SUM $NEW
# from 2.1.5 and before
MD5SUM="7feed2b53dad06634b2bc32d63f634e4"
chkMD5Update $TARGET $MD5SUM $NEW
)

##### bashrc
TARGET=${HOME}/.bashrc
NEW=/etc/skel/.bashrc
chkSame $TARGET $NEW || (
# from 3.x & 4.x, 5.x
MD5SUM="6d43294e457bb568957d2fb2b43b0355"
chkMD5Update $TARGET $MD5SUM $NEW
# from 2.5 & 2.6
MD5SUM="e31a08d3af08bed5e4f246a3dacc36d8"
chkMD5Update $TARGET $MD5SUM $NEW
# from 2.1 & 2.1.5
MD5SUM="6ad96798a72f420d409095ca0ed538f1"
chkMD5Update $TARGET $MD5SUM $NEW
# from 2.0 
MD5SUM="a1d1b54732257d96b9219af0c7f1fc7a"
chkMD5Update $TARGET $MD5SUM $NEW
)

##### cshrc
TARGET=${HOME}/.cshrc
NEW=/etc/skel/.cshrc
chkSame $TARGET $NEW || (
# from 2.6 & 3.x & 4.x, 5.x
MD5SUM="d72dab0210938146b5c4ffe01d874e3a"
chkMD5Update $TARGET $MD5SUM $NEW
# from 2.1 & 2.1.5 
MD5SUM="9ccfb8703e6ae18b627b46aeb84a05b1"
chkMD5Update $TARGET $MD5SUM $NEW
# from 2.0
MD5SUM="e353c9ee3971539acdfb4a8769f34c66"
chkMD5Update $TARGET $MD5SUM $NEW
)

################################
##### removed since Vine Linux 6
##### emacs
TARGET=${HOME}/.emacs
# from 5.x
MD5SUM="e09878a9eb8bf120e97d8684cb1d7b3a"
# from 2.6 & 3.x & 4.0, 4.1
MD5SUM+=" 3c866b2dafd2a7ba7ea2b41faf24f523"
# from 2.1 & 2.1.5 & 2.5
MD5SUM+=" 289ba7d687f770983b143ea0e424c722"
for i in $MD5SUM ; do
  chkMD5Remove $TARGET $i
done

################################
##### removed since Vine Linux 6
##### .emacs.el
TARGET=${HOME}/.emacs.el
MD5SUM="bd4f9e933abc2db52c02715d71fe6c94"
# from 4.1+
MD5SUM+=" c2876e464b4e2572fcfa1e95ec111a6c"
# from 4.1
MD5SUM+=" 6305d80793bd17761e9b054d1c71094e"
# from 4.0
MD5SUM+=" 233bd3d3636ac04d7ec1223280f01ce1"
# from 3.2
MD5SUM+=" cc1a41f2dbc775fccfa0d07cbfe48b8b"
# from 3.1
MD5SUM+=" d2b98e579143983a39a6639120e8579a"
# from 3.0
MD5SUM+=" a0bbf086255f0751583520e7fd47326c"
# from 2.6
MD5SUM+=" 76785a2498f22f430583cbd649d8cfc3"
# from 2.6CR
MD5SUM+=" 00ae4ed293d418a43f6018941173ff7a"
# from 2.5
MD5SUM+=" 6718c077a33f729c0f3340ff362d53f6"
# from 2.1 & 2.1.5
MD5SUM+=" e5d037ca2ea00619dc72ad5c59baca3a"
# from 2.0
MD5SUM+=" ecb3dec80763a8fdb0888d8980c49286"
for i in $MD5SUM ; do
  chkMD5Remove $TARGET $i
done

### rpmmacros
TARGET=${HOME}/.rpmmacros
NEW=/etc/skel/.rpmmacros
chkSame $TARGET $NEW || (
# from 5.x
MD5SUM="375fcff760b2121d13982b929af16a6c"
chkMD5Update $TARGET $MD5SUM $NEW
# from 4.x
MD5SUM="aeffd267d61af5ca4718cee9bb2cb2de"
chkMD5Update $TARGET $MD5SUM $NEW
# from 3.x
MD5SUM="ba738a926ffb0e5752ef440ba915634d"
chkMD5Update $TARGET $MD5SUM $NEW
# from 2.6
# MD5SUM="ba738a926ffb0e5752ef440ba915634d"
# chkMD5Update $TARGET $MD5SUM $NEW
# from 2.1.5
# MD5SUM="ba738a926ffb0e5752ef440ba915634d"
# chkMD5Update $TARGET $MD5SUM $NEW
# from 2.1
MD5SUM="2b2a0f4e2d7ec077db33f031f66cac9c"
chkMD5Update $TARGET $MD5SUM $NEW
)

################################
##### removed since Vine Linux 6
##### xemacs.el
TARGET=${HOME}/.xemacs.el
# from 5.x
MD5SUM="8c521ded7399113a2acc44cd7d15c6f7"
# from 4.0
MD5SUM+=" 05c1705daa7769a65efa6045206c574b"
# from 3.x
MD5SUM+=" 4b459e779adb38fabb461a27d0cfa76e"
# from 2.6
MD5SUM+=" a48ed6df7d52422455713a1d61b69d64"
# from 2.6
MD5SUM+=" 4764be822a419a7f620fc082ced8d6ac"
# from 2.1 & 2.1.5
MD5SUM+=" ea9b58406676c6f586cb80e63d37bffe"
# from 2.0
MD5SUM+=" 81982a524f9ab581a017dbfaa77f2d34"
for i in $MD5SUM ; do
  chkMD5Remove $TARGET $i
done

##### xemacs.el
TARGET=${HOME}/.xemacs/init.el
#from 5.x
MD5SUM="0f65ac976270dddd236f437ca46782f9"
# from 4.1+
MD5SUM+=" a19da2801c7287a89f92e63f9ba335cd"
# from 4.1
MD5SUM+=" 42554ea7b5738e5519e4b22b5dab5a73"
for i in $MD5SUM ; do
  chkMD5Remove $TARGET $i
done

# imelib -> vinelib (from 2.0)
TARGET=${HOME}/.bashrc
Update "imelib" \
	"imelib" \
	"vinelib" \
       $TARGET && (
       echo "Your ~/.bashrc seems to be old." >> ${LOG}
       echo "Please compare it with /etc/skel/.bashrc and update it!" >> ${LOG}
)

# CANNA_SEVER=localhost -> unix (Vine Linux 3.0)
if [ -f ${HOME}/.vine/system/ime ]; then
    if (grep -q "CANNA_SERVER=localhost" ${HOME}/.vine/system/ime) ; then
        cp -f ${HOME}/.vine/system/ime ${HOME}/.vine/system/ime.vinesave
        sed "s/CANNA_SERVER=localhost/CANNA_SERVER=unix/" ${HOME}/.vine/system/ime.vinesave > ${HOME}/.vine/system/ime
	echo "upgraded ~/.vine/system/ime to use unix domain socket for Canna." >> ${LOG}
    fi
fi

# new files (Vine Linux 2.1)
chkAndCpFile .rpmmacros
chkAndCpDir rpm

# new files (Vine Linux 6)
chkAndCpDir .emacs.d

####################
touch ${STAMP}
####################
unset TARGET NEW MD5SUM VER LOG STAMP