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#!/bin/bash
#

if [ "`id -u`" != "0" ]; then
   echo ""
   echo "Su as root and try again."
   echo ""
   exit 1
fi

pythonV=`python -V 2>&1`
if [ "$pythonV" \< "Python 2.2.0" ];then
   echo ""
   echo "Install python 2.2 and then try again"
   echo ""
   exit 1
fi

   mkdir -p /usr/lib/portage/bin
   mkdir -p /usr/lib/portage/pym
   mkdir -p /usr/portage/profiles
   mkdir -p /etc/env.d
   mkdir -p /etc/portage/profile
   mkdir -p /var/log/portage
   mkdir -p /var/tmp/portage
   mkdir -p /etc/config-archive
   mkdir -p /var/lib/init.d
   mkdir -p /var/lib/portage

   cd /tmp
   rm -rf portage-2.*
   wget ftp://gentoo.mirrors.pair.com/distfiles/portage-2.0.*
   portar=`/bin/ls portage-2.0.* 2>/dev/null |sort|tail -n 1`
   if [ ! -f "${portar}" ];then
      echo ""
      echo "Mirror error. Try this script again after a while without any args".
      echo ""
      exit 1
   fi
   tar jxf ${portar}

   cd portage-2.*/bin
   cp * /usr/lib/portage/bin
   export PATH=/usr/lib/portage/bin:$PATH
   cd ../pym ; cp * /usr/lib/portage/pym/
   cd ../man ;cp *.1 /usr/share/man/man1 ;cp *.5 /usr/share/man/man5
   cd ../src/python-missingos
   ./setup.py install
   cd ../sandbox-1.1
   make && make install
   cd ../../cnf; cp * /etc

   if [ "`id portage`" == "" ]; then
      /usr/sbin/groupadd -g 250 portage
      /usr/sbin/useradd -d /var/tmp/portage -g portage -u 250 portage
   fi

   cd /usr/sbin
   ln -sf ../lib/portage/bin/regenworld .
   ln -sf ../lib/portage/bin/pkgmerge .
   ln -sf ../lib/portage/bin/fixpackages .
   ln -sf ../lib/portage/bin/etc-update .
   ln -sf ../lib/portage/bin/env-update .
   ln -sf ../lib/portage/bin/emerge-webrsync .
   ln -sf ../lib/portage/bin/ebuild.sh .
   ln -sf ../lib/portage/bin/ebuild .
   ln -sf ../lib/portage/bin/dispatch-conf .
   ln -sf ../lib/portage/bin/archive-conf .

   cd /usr/bin
   ln -sf ../lib/portage/bin/xpak .
   ln -sf ../lib/portage/bin/repoman .
   ln -sf ../lib/portage/bin/quickpkg .
   ln -sf ../lib/portage/bin/portageq .
   ln -sf ../lib/portage/bin/g-cpan.pl .
   ln -sf ../lib/portage/bin/emerge .

export PATH=/usr/lib/portage/bin:$PATH
echo "CC=gcc;CXX=g++" > /etc/env.d/compilers.sh
myldpath="/lib:/usr/lib"
# before we call portage the first time, we should save our ld.so.conf
for i in $(cat /etc/ld.so.conf);do myldpath=$myldpath:$i;done
echo "LDPATH=\"${myldpath}\"" > /etc/env.d/10ldpath
. /etc/env.d/compilers.sh
emerge sync
#
# emerge sync should get /usr/portage/profiles
#
if [ -d /usr/portage/profiles/default-linux ];then
   rm -f /etc/make.profile
   ln -s /usr/portage/profiles/default-linux/x86/2005.1 /etc/make.profile
else
   echo ""
   echo "Something wrong. Get /usr/portage/profiles dir from a working"
   echo "Gentoo system and try again."
   echo ""
   exit 1
fi

# inject the "dangerous" packages first.
glibcP=`emerge -p -O glibc|grep ebuild|cut -d" " -f8`
emerge inject $glibcP
gccP=`emerge -p -O gcc|grep ebuild|cut -d" " -f8`
emerge inject $gccP
binP=`emerge -p -O binutils|grep ebuild|cut -d" " -f8`
emerge inject $binP

# fetch the baselayout.
emerge -f -O baselayout

# now inject it too.
baseP=`emerge -p -O baselayout|grep ebuild|cut -d" " -f8`
emerge inject $baseP

#was inject success
ret=`emerge -p baselayout|grep "ebuild   R"`

if [ "$ret" == "" ] ;then
  echo "Inject has failed. Please verify and continue with cut & paste of rest of the steps"
  echo "ERROR."
  exit 1
fi

# if it fails with some errors, its fine.
emerge -O portage

cd /tmp
fileN=`ls /usr/portage/distfiles/rc-scripts-*|sort|tail -n1`
tar xjpf $fileN
cd rc-scripts*/sbin
cp depscan.sh /sbin; cp functions.sh /sbin
mkdir -p /lib/rcscripts/awk
cd ../src/awk
cp *.awk /lib/rcscripts/awk/
cd /etc/init.d
ln -s /sbin/depscan.sh .
ln -s /sbin/functions.sh .

emerge -O bison gawk

# FOLLOWING SHOULD NOT GIVE ANY ERRORS HERE. You screwed up if it did.
emerge -O portage

if ! fgrep -q "/etc/profile.env" /etc/profile ; then
  echo ". /etc/profile.env" >> /etc/profile
fi

echo ""
echo "#############################################################"
echo "You are now free to enjoy portage. Make sure you tune"
echo "/etc/make.conf and other portage configuration files to take"
echo "advantage of portage. If you screwed up, its OK. Pick yourself"
echo "up and give it another go."
echo "#############################################################"
echo ""




##Currently, my /etc/portage/package.mask.ORG looks like this:
##-##-------------
##Code:

echo "
sys-apps/baselayout
sys-apps/sysvinit
sys-fs/devfsd
sys-kernel/linux-headers
sys-libs/pwdb
sys-libs/pam
sys-libs/pam-login
sys-apps/kbd
sys-devel/bin86
net-misc/iputils
sys-apps/shadow
net-misc/dhcpcd
sys-apps/modutils
sys-libs/glibc
sys-apps/cronbase
x11-base/opengl-update
net-mail/mailbase
net-nds/portmap
sys-fs/e2fsprogs
" >>  /etc/portage/package.mask.ORG





#!/bin/bash
emerge sync
emerge -p -uD world > /tmp/world.update
for i in `cat /etc/portage/package.mask.ORG` ;
do
matching=`grep "$i" /tmp/world.update`
if [ -n "$matching" ]; then
toInject=`echo $matching|cut -d " " -f 4`;
echo "Injecting $toInject"
echo "$toInject" >> /etc/portage/profile/package.provided
fi
done
echo "# #"
echo "################# UPDATES #######################"
echo "# #"
cat /tmp/world.update








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


## Actual package provided

[petr_michalec@epcim ~]$ cat /etc/portage/profile/package.provided

sys-apps/sysvinit-2.86
sys-kernel/linux-headers-2.6.11-r2
sys-libs/pwdb-0.62
sys-libs/pam-0.78-r2
sys-apps/kbd-1.12-r5
net-misc/iputils-021109-r3
sys-apps/shadow-4.0.7-r3
sys-fs/e2fsprogs-1.38
## I dont want to recompile whole X system.
x11-base/xorg-x11-6.8.2