Add check if we are upgrading from <nagios-3.

(Portage version: 2.1.5.4)

2 files changed, 32 insertions, 2 deletions

diff --git a/net-analyzer/nagios/ChangeLog b/net-analyzer/nagios/ChangeLog
index a55c6fc24405..b18a9cf19908 100644
--- a/net-analyzer/nagios/ChangeLog
+++ b/net-analyzer/nagios/ChangeLog
@@ -1,6 +1,9 @@
 # ChangeLog for net-analyzer/nagios
 # Copyright 2002-2008 Gentoo Foundation; Distributed under the GPL v2
-# $Header: /var/cvsroot/gentoo-x86/net-analyzer/nagios/ChangeLog,v 1.69 2008/05/29 13:02:52 dertobi123 Exp $
+# $Header: /var/cvsroot/gentoo-x86/net-analyzer/nagios/ChangeLog,v 1.70 2008/06/08 16:31:25 dertobi123 Exp $
+
+  08 Jun 2008; Tobias Scherbaum <dertobi123@gentoo.org> nagios-3.0.2.ebuild:
+  Add check if we are upgrading from <nagios-3.
 
   29 May 2008; Tobias Scherbaum <dertobi123@gentoo.org> nagios-3.0.2.ebuild:
   Adjust nagios-plugins dep
diff --git a/net-analyzer/nagios/nagios-3.0.2.ebuild b/net-analyzer/nagios/nagios-3.0.2.ebuild
index f797ec2f3710..8bb730186953 100644
--- a/net-analyzer/nagios/nagios-3.0.2.ebuild
+++ b/net-analyzer/nagios/nagios-3.0.2.ebuild
@@ -1,6 +1,6 @@
 # Copyright 1999-2008 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
-# $Header: /var/cvsroot/gentoo-x86/net-analyzer/nagios/nagios-3.0.2.ebuild,v 1.2 2008/05/29 13:02:52 dertobi123 Exp $
+# $Header: /var/cvsroot/gentoo-x86/net-analyzer/nagios/nagios-3.0.2.ebuild,v 1.3 2008/06/08 16:31:25 dertobi123 Exp $
 
 DESCRIPTION="The Nagios metapackage - merge this to pull install all of the
 nagios packages"
@@ -15,6 +15,33 @@ RDEPEND="~net-analyzer/nagios-core-${PV}
 	>=net-analyzer/nagios-plugins-1.4.12-r100
 	>=net-analyzer/nagios-imagepack-1.0-r100"
 
+pkg_setup() {
+	# Avoid upgrading from Nagios <3 as the directory structure has changed
+	if [[ -f /var/lib/init.d/started/nagios ]] ; then
+		if has_version '<net-analyzer/nagios-3.0' ; then
+			if [[ "${FORCE_UPGRADE}" ]] ; then
+				echo
+				ewarn "you are upgrading from an incompatible version and have"
+				ewarn "FORCE_UPGRADE set, will build this package while Nagios is running."
+				echo
+			else
+				echo
+				eerror "You are upgrading from an incompatible version."
+				eerror "Please be advised that installation paths have changed to a more FHS"
+				eerror "compliant structure and you won't be able to easily upgrade to"
+				eerror "Nagios 3 therefore. You will have to change your configuration"
+				eerror "to reflect this change, for example Nagios plugins are now installed"
+				eerror "into /usr/$(get_libdir)/nagios/plugins/ instead of /usr/nagios/libexec."
+				echo
+				eerror "If you want to upgrade now, emerge nagios with:"
+				eerror "    FORCE_UPGRADE=1 emerge nagios"
+				die "Upgrading from an incompatible version!"
+				echo
+			fi
+		fi
+	fi
+}
+
 pkg_postrm() {
 	elog "Note: this is a META ebuild for ${P}."
 	elog "to remove it completely or before re-emerging"