#!/bin/bash
#
# Run this script with argument pointing to root of newly installed
# fedora before you boot to the firstboot screen.
#
tmpfile=/tmp/zeroboot$$
export tmpfile
trap "rm -f $tmpfile" EXIT
if [ $# -ne 1 ]
then
   echo Must be run with single arg giving path to root of new fedora 1>&2
   exit 2
fi
fedroot="$1"
if [ -d "$fedroot" ]
then
   :
else
   echo "$fedroot" is not a directory 1>&2
   exit 2
fi

# Disable annoying boot animation which hides anything that might go wrong.
# As long as we are editing kernel command line, disable selinux as well.
#
files="$fedroot/boot/grub2/grub.cfg $fedroot/etc/default/grub"
for file in $files
do
   echo Fix "$file" rhgb, selinux
   if [ -f "$file" ]
   then
      cp -f $file $file.zeroboot
      rm -f "$tmpfile"
      sed -e 's/ rhgb / selinux=0 /' \
         < "$file" \
         > "$tmpfile"
      if cmp -s "$tmpfile" "$file"
      then
         :
      else
         cp -f "$tmpfile" "$file"
      fi
      rm -f "$tmpfile"
   else
      echo Missing "$file" 1>&2
   fi
done

# We disabled selinux on kernel boot, now use belt and suspenders
# and disable it in the config file as well.
#
file="$fedroot/etc/selinux/config"
echo Fix "$file", disable selinux
if [ -f "$file" ]
then
   cp -f $file $file.zeroboot
   rm -f "$tmpfile"
   sed -e 's/SELINUX=enforcing/SELINUX=disabled/' \
      < "$file" \
      > "$tmpfile"
   if cmp -s "$tmpfile" "$file"
   then
      :
   else
      cp -f "$tmpfile" "$file"
   fi
   rm -f "$tmpfile"
else
   echo Missing "$file" 1>&2
fi

# Setup the system to use KDM rather than GDM as the login manager.
# (KDM can be configured, GDM cannot).
#
file="$fedroot/etc/sysconfig/desktop"
echo Setup "$file" for KDM login
cp -f /etc/sysconfig/desktop "$file"

# Disable some annoying things that can be disabled by fiddling
# environment variables early in the X login process.
#
file="$fedroot/etc/X11/xinit/xinitrc.d/00-aaa-me-first.sh"
echo Setup "$file" disable input methods and gvfs
cp -f /etc/X11/xinit/xinitrc.d/00-aaa-me-first.sh "$file"

# Run the scripts that use xinput to adjust buttons and
# wot-not on mice when I login.
#
file="$fedroot/etc/X11/xinit/xinitrc.d/99-temp.sh"
echo Setup "$file" for xinput adjustments
cat > "$file" <<'EOF'
#!/bin/bash
/zooty/home/tom/scripts/xinput-mouse-settings
/zooty/home/tom/scripts/mini-mouse
EOF
chmod 755 "$file"

# Setup udev rules to prevent my backup disks from showing
# up in every file browser and being automounted in every
# gnome session
#
file="$fedroot/etc/udev/rules.d/99-zzz-local.rules"
echo Setup "$file" disable annoying automount
cp -f /etc/udev/rules.d/99-zzz-local.rules "$file"

# Address space randomization loads shared libraries at random
# locations. The prelinker wastes near infinite amounts of
# resources adjusting shared libraries to load at fixed locations
# where they don't conflict. Having both active is utterly
# lunatic, so disable the prelinker (which has never managed
# to save as much time as it wastes anyway).
#
file="$fedroot/etc/sysconfig/prelink"
echo Fix "$file", disable prelinking
if [ -f "$file" ]
then
   cp -f $file $file.zeroboot
   rm -f "$tmpfile"
   sed -e 's/PRELINKING=yes/PRELINKING=no/' \
      < "$file" \
      > "$tmpfile"
   if cmp -s "$tmpfile" "$file"
   then
      :
   else
      cp -f "$tmpfile" "$file"
   fi
   rm -f "$tmpfile"
else
   echo Missing "$file" 1>&2
fi

# Copy in double sized console font so I can see characters on
# the screen (may not need this soon - this may have made it
# into the official packages).
#
file="$fedroot/lib/kbd/consolefonts/latarcyrheb-sun32.psfu.gz"
echo Setup "$file" for bigger font
cp -f /lib/kbd/consolefonts/latarcyrheb-sun32.psfu.gz "$file"

# Set the default console font to use the larger font.
#
file="$fedroot/etc/sysconfig/i18n"
echo Fix "$file", default to bigger font
if [ -f "$file" ]
then
   rm -f "$tmpfile"
   sed -e 's/latarcyrheb-sun16/latarcyrheb-sun32/' \
      < "$file" \
      > "$tmpfile"
   if cmp -s "$tmpfile" "$file"
   then
      :
   else
      cp -f "$tmpfile" "$file"
   fi
   rm -f "$tmpfile"
else
   echo Missing "$file" 1>&2
fi

# Copy the old ssh host keys to the new partition so I still
# look like the same machine.
#
dir="$fedroot/etc/ssh"
echo Fix "$dir" ssh keys
if [ -d "$dir" ]
then
   cp -f /etc/ssh/*key* "$dir"
else
   echo Missing "$dir" 1>&2
fi