post-install

#!/bin/bash -e

#Make sure we are running as root.
if [ "$UID" != "0" ] ; then
    echo 'Run this script with sudo'
    exit 1
fi

#This scripts directory, used to find the pprint script
DIR=$(cd $(dirname "$0"); pwd)

#Make messages display better
source $DIR/pprint

function errexit {
  echo trapped
  mail_log "ERROR" "The post-install script failed!"
}

#Changing the log file
export LOGFILE='post-install.log'

#Get a fresh log file
if [ -e "$LOGFILE" ] ; then rm "$LOGFILE" ; fi


#Current distro's adjective name used for apt.
if [ -f /etc/apt/sources.list.d/official-package-repositories.list ] ; then
    ADJECTIVE=$( grep -m 1 'ubuntu' /etc/apt/sources.list.d/official-package-repositories.list | cut -d ' ' -f 3 )
else
    ADJECTIVE=$( grep -m 1 'deb.*ubuntu' /etc/apt/sources.list | cut -d ' ' -f 3 )
fi

#Virtualbox package to install
VBOX='virtualbox-4.3'

#List of applications to install
APPS="vlc browser-plugin-vlc mpg321 espeak python3-pip \
      vim-gnome git cscope vim-doc build-essential \
      rdiff-backup alltray libreoffice \
      sshfs openssh-server filezilla deluge exfat-fuse exfat-utils \
      ssmtp bsd-mailx inotify-tools wallch"

#Install the Virtualbox and Chrome repository keys
if ! wget -q http://download.virtualbox.org/virtualbox/debian/oracle_vbox.asc -O- | sudo apt-key add - ; then
    die_log 'Failed to add the VirtualBox repository key'
fi

if ! wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add - ; then
    die_log 'Failed to install Chrome repository key'
fi

#Add virtual box repository apt list file
cat >/etc/apt/sources.list.d/virtualbox.list <<EOF
deb http://download.virtualbox.org/virtualbox/debian $ADJECTIVE contrib
EOF

#Add the Chrome repository apt list file
cat >/etc/apt/sources.list.d/google-chrome.list <<EOF
deb http://dl.google.com/linux/chrome/deb/ stable main
EOF

#Install the SimpleScreenRecorder repositiory
if ! add-apt-repository ppa:maarten-baert/simplescreenrecorder -y ; then
    die_log 'Failed to install SimpleScreenRecorder Repo'
fi

#Make the sources changes take effect
if ! ( apt-get update || apt-get update ) ; then
    die_log 'Could not update repository list to make source.list changes take effect'
fi

#Get currently installed software one at a time
dpkg --get-selections > /tmp/selections

#Install the applications
if ! apt-get -y install $APPS ; then
    die_log "Could not install all of the applications"
fi


#Install VirtualBox if it is not already installed
if ! grep -q "$VBOX" /tmp/selections ; then
    if ! apt-get -y install $VBOX ; then
        die_log "Could not install $VBOX"
    fi
fi

#Install Chrome if it not already installed
if ! grep -q "google-chrome-stable" /tmp/selections ; then
    if ! apt-get -y install google-chrome-stable ; then
        die_log "Could not install Google Chrome"
    fi
fi

#Install SimpleScreenRecorder if not already installed
if ! grep -q 'simplescreenrecorder' /tmp/selections ; then
    if ! apt-get -y install simplescreenrecorder ; then
        die_log "Could not install SimpleScreenRecorder"
    fi
fi

#Install the proprietary video driver
info_log 'Installing any needed proprietary drivers'
if ! ubuntu-drivers autoinstall ; then
    die_log 'Failed to install proprietary drivers'
fi

#BUG FIX: Mint uses the old 2.x version of Gedit instead of
#the newer version. The fix works by installing the Ubuntu
#version of the packages instead of the Mint versions. I have
#farmed this out to a separate script.
if ! "$DIR/upgrade-to-gedit3" ; then
    die_log 'Failed to upgrade Gedit 2.x to Gedit 3.x'
fi

#Install Pylint via PIP
if ! pip3 install pylint ; then
    warn_log 'Failed to install Pylint'
fi

#Clean up selections file
rm /tmp/selections

#Add regular users to the vboxusers group
#Regular users are determined by having a UID between 1000-1999
for me in $( grep 'x:1[0-9]\{3\}:' /etc/passwd | cut -f 1 -d : ) ; do
    if ! getent group vboxusers | grep -q $me ; then
        if ! adduser $me vboxusers ; then
            die_log "Could not add user '$me' to group 'vboxusers'"
        fi
    fi
done

#Upgrade the system
info_log 'Upgrading the system'
if ! ( apt-get -y upgrade && apt-get -y dist-upgrade && \
       apt-get -y autoremove && apt-get -y clean ) ; then
    die_log 'Upgrade failed'
fi

#Setup NetworkManager configuration files
if ! "$DIR/setup-nm" ; then
    die_log "Failed to properly setup NetworkManager configuration"
fi

#Adjust the sudoers file so it does not ask for a password
info_log 'Fixing sudoers file'
if ! cp -v /etc/sudoers /tmp/sudoers.tmp ; then
    die_log 'Could not copy sudoers to begin no password change'
elif ! sed -i 's/^%admin.*$/%admin ALL=NOPASSWD:ALL/' /tmp/sudoers.tmp ; then
    die_log 'Could not replace ALL with NOPASSWD field in admin.'
elif ! sed -i 's/^%sudo.*$/%sudo ALL=NOPASSWD:ALL/' /tmp/sudoers.tmp ; then
    die_log 'Could not replace ALL with NOPASSWD field in sudoers.'
elif ! mv -v /tmp/sudoers.tmp /etc/sudoers ; then
    die_log 'Could not replace sudoers file with new one.'
fi

#Make the backup script active
info_log Creating backup script link
if [ ! -e /etc/cron.daily/backup-home ] ; then
    if ! sudo ln -vs $DIR/backup-home /etc/cron.daily/ ; then
        die_log 'Could not create the backup script symlink'
    fi
fi

#Make the automatic upgrade script active
info_log Creating automatic upgrade link
if [ ! -e /etc/cron.daily/upgrade ] ; then
    if ! sudo ln -vs $DIR/upgrade /etc/cron.daily/ ; then
        die_log 'Could not create the upgrade script symlink'
    fi
fi

#Add the servers as SSH FS's to the fstab file
$DIR/add-sshfs-to-fstab

#Set up ssmtp
info_log Setting up ssmtp.conf
cp -v $DIR/etc/ssmtp.conf /etc/ssmtp
chmod 640 /etc/ssmtp/ssmtp.conf
chown root:mail /etc/ssmtp/ssmtp.conf

#I like cronttab to run daily, weekly, etc at 3 in the morning
#so replace it with my on cronttab
cp -v {$DIR,}/etc/crontab


#Send an email when the post install is finished.
#This acts as a test for whether the ssmtp config
#worked.
mail_log 'Post install script finished successfully' 'No problems to report'