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✏️ Editing: procps.postinst

#!/bin/sh
# postinst script for procps
#
# see: dh_installdeb(1)

set -e

# summary of how this script can be called:
#        * <postinst> `configure' <most-recently-configured-version>
#        * <old-postinst> `abort-upgrade' <new version>
#        * <conflictor's-postinst> `abort-remove' `in-favour' <package>
#          <new-version>
#        * <deconfigured's-postinst> `abort-deconfigure' `in-favour'
#          <failed-install-package> <version> `removing'
#          <conflicting-package> <version>
# for details, see http://www.debian.org/doc/debian-policy/ or
# the debian-policy package
#
# quoting from the policy:
#     Any necessary prompting should almost always be confined to the
#     post-installation script, and should be protected with a conditional
#     so that unnecessary prompting doesn't happen if a package's
#     installation fails and the `postinst' is called with `abort-upgrade',
#     `abort-remove' or `abort-deconfigure'.

# Move a conffile without triggering a dpkg question
mv_conffile() {
  OLDCONFFILE="$1"
  NEWCONFFILE="$2"

if [ -e "$OLDCONFFILE" ]; then
    echo "Preserving user changes to $NEWCONFFILE ..."
    mv -f "$NEWCONFFILE" "$NEWCONFFILE".dpkg-new
    mv -f "$OLDCONFFILE" "$NEWCONFFILE"
  fi
}

# update alternative, if it exists
check_alternatives() {
  BINNAME="$1"
  BINPATH="$2"
  MANSEC="$3"
  if [ -e "$BINPATH"/"$BINNAME".procps ] ; then
	update-alternatives --install "$BINPATH"/"$BINNAME" "$BINNAME" \
	    "$BINPATH"/"$BINNAME".procps 50 \
		--slave /usr/share/man/man"$MANSEC"/"$BINNAME"."$MANSEC".gz "$BINNAME"."$MANSEC".gz \
		/usr/share/man/man"$MANSEC"/"$BINNAME".procps."$MANSEC".gz
  fi
}
case "$1" in
    configure|abort-remove|abort-deconfigure)
		if [ -e /etc/psdevtab ] ; then
			rm -f /etc/psdevtab
		fi
		if [ -e /etc/psdatabase ] 
		then
			rm -f /etc/psdatabase
		fi
       # Remove old procps init.d script, if it exists Closes: #55137
       if [ -L /etc/rcS.d/S30procps.sh ]
       then
          update-rc.d -f procps.sh remove >/dev/null
       fi
       # and if that didn't work Closes: #92184 (#234306 with -L )
       if [ -L /etc/rcS.d/S30procps.sh ]
       then
           rm -f /etc/rcS.d/S30procps.sh
       fi
	   # Remove moved procps.sh file, if it is there
	   if dpkg --compare-versions "$2" le "1:3.2.7-3"; then
		 mv_conffile "/etc/init.d/procps.sh" "/etc/init.d/procps"
	   fi

# Remove the old w alternative as procps is the only one
	   if dpkg --compare-versions "$2" le "2:3.3.17-4"; then
	       update-alternatives --remove w /usr/bin/w.procps
	   fi

# Do alternatives for uptime kill vmstat and ps, if required
		check_alternatives "uptime" "/usr/bin" "1"
		check_alternatives "kill" "/usr/bin" "1"
		check_alternatives "vmstat" "/usr/bin" "8"
		check_alternatives "ps" "/bin" "1"
		
    ;;

abort-upgrade)
	    # Nothing to do
    ;;

*)
        echo "postinst called with unknown argument \`$1'" >&2
        exit 1
    ;;
esac

# dh_installdeb will replace this with shell code automatically
# generated by other debhelper scripts.

# Automatically added by dh_installmenu/13.6ubuntu1
if [ "$1" = "configure" ] && [ -x "`command -v update-menus`" ]; then
	update-menus
fi
# End automatically added section
# Automatically added by dh_installdeb/13.6ubuntu1
dpkg-maintscript-helper rm_conffile /etc/sysctl.d/protect-links.conf 2:3.3.16-1ubuntu1\~ -- "$@"
dpkg-maintscript-helper rm_conffile /etc/sysctl.d/10-link-restrictions.conf 2:3.3.16-4ubuntu1\~ -- "$@"
dpkg-maintscript-helper mv_conffile /usr/lib/sysctl.d/protect-links.conf /usr/lib/sysctl.d/99-protect-links.conf 2:3.3.17-6\~ procps -- "$@"
# End automatically added section
# Automatically added by dh_installinit/13.6ubuntu1
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
	if [ -x "/etc/init.d/procps" ]; then
		update-rc.d procps defaults >/dev/null || exit 1
	fi
fi
# End automatically added section

exit 0

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