postinst is in dpkg 1.17.27.
This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.
The actual contents of the file can be viewed below.
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# This script can be called in the following ways:
#
# After the package was installed:
# <postinst> configure <old-version>
#
#
# If prerm fails during upgrade or fails on failed upgrade:
# <old-postinst> abort-upgrade <new-version>
#
# If prerm fails during removal:
# <old-postinst> abort-remove
#
# If prerm fails during deconfiguration of a package:
# <postinst> abort-deconfigure in-favour <new-package> <version>
# removing <old-package> <version>
#
# If prerm fails during replacement due to conflict:
# <postinst> abort-remove in-favour <new-package> <version>
set -e
# Create the database files if they don't already exist
create_database() {
admindir=${DPKG_ADMINDIR:-/var/lib/dpkg}
for file in diversions statoverride status; do
if [ ! -f "$admindir/$file" ]; then
touch "$admindir/$file"
fi
done
}
# Move the info directory from /usr/info to /usr/share/info
move_info_directory() {
if [ -d /usr/info ] && [ ! -L /usr/info ] \
&& [ -f /usr/info/dir ] && [ ! -L /usr/info/dir ]
then
echo "Moving /usr/info/dir to /usr/share/info/dir ..."
mv /usr/info/dir /usr/share/info/dir
if [ -f /usr/info/dir.old ]; then
mv /usr/info/dir.old /usr/share/info/dir.old
fi
fi
}
# Remove the /usr/info symlinks we used to generate
remove_info_symlink() {
if [ -L /usr/info ]; then
echo "Removing /usr/info symlink ..."
rm /usr/info
elif [ -L /usr/info/dir ]; then
echo "Removing /usr/info/dir symlink ..."
rm /usr/info/dir
fi
}
# Create log file and set default permissions if possible
create_logfile() {
logfile=/var/log/dpkg.log
touch $logfile
chmod 644 $logfile
chown root:root $logfile 2>/dev/null || chown 0:0 $logfile
}
case "$1" in
configure)
create_database
create_logfile
move_info_directory
remove_info_symlink
;;
abort-upgrade|abort-deconfigure|abort-remove)
;;
*)
echo "$0 called with unknown argument \`$1'" 1>&2
exit 1
;;
esac
exit 0
|