integrate-distro.sh: Ongoing improvements

- Parameterized kernel flavour
  - Add use_host_files() and reset_host_files()

Signed-off-by: Jan Lindemann <jan@jannet.de>

scripts/integrate-distro.sh

@@ -99,7 +99,7 @@ case $suse_version in
 	payload_pkgs="
 		unscd
 	"
-	kernel_version=3.7.8-jng11-default
+	kernel_version=3.7.8-jng11$kernel_flavour
 	rpm_kernel_version=3.7.8~jng11-1
 	;;
 12.3)
@@ -112,7 +112,7 @@ case $suse_version in
 		usbutils
 	"
 
-	kernel_version=3.7.10-jng12-default
+	kernel_version=3.7.10-jng12$kernel_flavour
 	rpm_kernel_version=3.7.10~jng12-1
 	;;
 esac
@@ -142,7 +142,7 @@ update_pkgs="
 special_pkgs="
 	$special_pkgs
 	aufs
-	aufs-kmp-default
+	aufs-kmp$kernel_flavour
 	kernel$kernel_flavour-$rpm_kernel_version
 	rpm
 "
@@ -686,6 +686,36 @@ make_home_ssh_conf()
 EOT
 }
 
+use_host_files()
+{
+	local f
+	for f in $@; do
+		echo "== using host file $f"
+		[ -e $root/$f ] && {
+			mv $root/$f $root/$f.$myname
+		}
+		mkdir -p -m 755 `dirname $root/$f`
+		cp -rp $f $root/$f
+		host_files="$host_files $f"
+	done
+}
+
+reset_host_files()
+{
+	local f e h
+	for f in $host_files; do
+		for e in $myname rpmnew; do
+			h="$root/$f.$e"
+			[ -e "$h" ] && {
+				echo "== resetting host file from $f.$e"
+				mv $h $root/$f
+				break
+			}
+		done
+	done
+	host_files=""
+}
+
 setup_boot_loader_local()
 {
 	check_var_set grub_boot_partition_num grub_slash_boot_partition_num || \
@@ -851,6 +881,7 @@ cmd_install()
 
 	setup_root_directory
 	setup_bind_mounts
+	use_host_files /etc/hosts /etc/resolv.conf /etc/sysconfig/security /etc/nsswitch.conf
 
 	mkdir -p -m 755 $root/etc
 	for c in \
@@ -901,12 +932,15 @@ cmd_install()
 		chroot $root /opt/ytools/bin/jcs init # TODO: remove this
 	}
 
-	echo "=== running jcs setup"
 	export CVSROOT=:ext:$scm_user@cvs.jannet.de:/home/jannet/arc/cvs
 	if [ "$SSH_AUTH_SOCK" ]; then
 		mkdir -m 700 -p `dirname $root/$SSH_AUTH_SOCK`
 		ln $SSH_AUTH_SOCK $root/$SSH_AUTH_SOCK
 	fi
+	echo "=== running jcs fetch"
+	chroot $root jcs fetch
+	reset_host_files
+	echo "=== running jcs setup"
 	chroot $root jcs setup
 
 	# seed the ldap database
@@ -954,6 +988,7 @@ cmd_install()
 myname=`basename $0`
 zypper_global_opts="--non-interactive --gpg-auto-import-keys --no-gpg-checks"
 date=`date`
+host_files=""
 
 get_opts "$@"