pacman-panis-git/pacman.install

   1 #!/bin/sh
   2 # arg 1:  the new package version
   3 # arg 2:  the old package version
   4 post_upgrade() {
   5         # one time stuff for md5sum issue with older pacman versions
   6         if [ "$(vercmp $2 3.0.2)" -lt 0 ]; then
   7                 _resetbackups
   8         fi
   9 }
  10
  11 _resetbackups() {
  12         echo ">>> Performing one-time reset of NoUpgrade md5sums. After this reset"
  13         echo ">>> you are able to remove all NoUpgrade lines of already protected"
  14         echo ">>> files from pacman.conf."
  15         echo ">>>"
  16
  17         # path variables
  18     pacconf="/etc/pacman.conf"
  19     dbpath="/var/lib/pacman/local"
  20
  21     # get a list of NoUpgrade files from the user's pacman.conf
  22     echo ">>> Retrieving pacman.conf NoUpgrade list..."
  23     config=$(grep "^NoUpgrade" $pacconf | cut -d'=' -f2)
  24     # add the standard list of files, even if they are already above
  25     config="$config \
  26     etc/passwd etc/group etc/shadow etc/sudoers \
  27     etc/fstab etc/raidtab etc/ld.so.conf \
  28     etc/rc.conf etc/rc.local \
  29     etc/modprobe.conf etc/modules.conf \
  30     etc/lilo.conf boot/grub/menu.lst"
  31
  32     # blank md5sum for use in sed expression
  33     zeroes='00000000000000000000000000000000'
  34
  35     for file in $config; do
  36         echo ">>> -> finding owner of /$file..."
  37         line=$(LC_ALL=C LANG=C pacman -Qo /$file 2>/dev/null)
  38         # if file is owned by a package, go find its incorrectly stored sum
  39         if [ ! -z "$line" ]; then
  40             # get the name and version of the package owning file
  41             name=$(echo $line | awk '{print $5}')
  42             version=$(echo $line | awk '{print $6}')
  43             # set the path to the backup array holding the md5sum
  44             path="$dbpath/$name-$version/files"
  45             # run a sed on the path to reset the line containing $file
  46             # NOTE: literal tab characters in sed expression after $file
  47             echo ">>> -> resetting sum of /$file..."
  48             sed -i "s#$file [0-9a-fA-F]*#$file  $zeroes#" $path
  49         else
  50             echo ">>> -> $file is unowned."
  51         fi
  52     done
  53 }