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-rw-r--r--libre/pacman/pacman.install62
1 files changed, 62 insertions, 0 deletions
diff --git a/libre/pacman/pacman.install b/libre/pacman/pacman.install
new file mode 100644
index 000000000..0e598bb4b
--- /dev/null
+++ b/libre/pacman/pacman.install
@@ -0,0 +1,62 @@
+#!/bin/sh
+# arg 1: the new package version
+# arg 2: the old package version
+post_upgrade() {
+ # one time stuff for md5sum issue with older pacman versions
+ if [ "$(vercmp $2 3.0.2)" -lt 0 ]; then
+ _resetbackups
+ fi
+ if [ "$(vercmp $2 3.5.0)" -lt 0 ]; then
+ _warnupgrade
+ fi
+}
+
+_warnupgrade() {
+ echo ">>> The pacman database format has changed as of pacman 3.5.0."
+ echo ">>> You will need to run \`pacman-db-upgrade\` as root."
+ echo ">>>"
+}
+
+_resetbackups() {
+ echo ">>> Performing one-time reset of NoUpgrade md5sums. After this reset"
+ echo ">>> you are able to remove all NoUpgrade lines of already protected"
+ echo ">>> files from pacman.conf."
+ echo ">>>"
+
+ # path variables
+ pacconf="/etc/pacman.conf"
+ dbpath="/var/lib/pacman/local"
+
+ # get a list of NoUpgrade files from the user's pacman.conf
+ echo ">>> Retrieving pacman.conf NoUpgrade list..."
+ config=$(grep "^NoUpgrade" $pacconf | cut -d'=' -f2)
+ # add the standard list of files, even if they are already above
+ config="$config \
+ etc/passwd etc/group etc/shadow etc/sudoers \
+ etc/fstab etc/raidtab etc/ld.so.conf \
+ etc/rc.conf etc/rc.local \
+ etc/modprobe.conf etc/modules.conf \
+ etc/lilo.conf boot/grub/menu.lst"
+
+ # blank md5sum for use in sed expression
+ zeroes='00000000000000000000000000000000'
+
+ for file in $config; do
+ echo ">>> -> finding owner of /$file..."
+ line=$(LC_ALL=C LANG=C pacman -Qo /$file 2>/dev/null)
+ # if file is owned by a package, go find its incorrectly stored sum
+ if [ ! -z "$line" ]; then
+ # get the name and version of the package owning file
+ name=$(echo $line | awk '{print $5}')
+ version=$(echo $line | awk '{print $6}')
+ # set the path to the backup array holding the md5sum
+ path="$dbpath/$name-$version/files"
+ # run a sed on the path to reset the line containing $file
+ # NOTE: literal tab characters in sed expression after $file
+ echo ">>> -> resetting sum of /$file..."
+ sed -i "s#$file [0-9a-fA-F]*#$file $zeroes#" $path
+ else
+ echo ">>> -> $file is unowned."
+ fi
+ done
+}