- move TODO to separate file

[packages/util-vserver.git] / util-vserver-dbrebuild-internalize4.patch

--- util-vserver-0.30.215/scripts/pkgmgmt	2008-11-17 20:58:47.120292384 +0200
+++ util-vserver-0.30.215/scripts/pkgmgmt	2008-11-17 22:47:02.486514626 +0200
@@ -185,6 +185,43 @@
     test -n "$is_ok"
 }
 
+## Usage: verifyDBTools <vdir> <type> <host_tool> <guest_tool>
+function verifyDBTools
+{
+    local vdir="$1"
+    local type="$2"
+    local host_tool="$3"
+    local guest_tool="$4"
+    local res=0
+
+    local i host_path guest_path
+    for i in /bin /usr/bin /usr/lib/rpm /usr/local/bin; do
+	test ! -x "$i"/$host_tool || { host_path="$i"/$host_tool; break; }
+    done
+    for i in /bin /usr/bin /usr/lib/rpm /usr/local/bin; do
+	test ! -x "$vdir$i"/$guest_tool || { guest_path="$i"/$guest_tool; break; }
+    done
+
+    test -n "$host_path" || {
+	warning "
+* The host does not seem to have the '$host_tool' program which is required
+  for $type package management. It is suggested to install it before
+  continuing."
+	res=1
+    }
+    test -n "$guest_path" || {
+	warning "
+* The vserver guest does not seem to have the '$guest_tool' program which is required
+  for $type package management. It is suggested to install it before
+  continuing."
+	res=1
+    }
+
+    eval $host_tool=$host_path
+    eval $guest_tool=$guest_path
+    return $res
+}
+
 # Usage: verifyInternalPackages <vserver> <style>
 function verifyInternalPackages()
 {
@@ -392,7 +429,12 @@
 	verifyInternalPackages "$vserver" RH || test -n "$IS_FORCE" ||
 	    panic "
 Can not continue; use '--force' to override this check"
+
+	verifyDBTools "$vdir" 'internal' db_dump db_load || test -n "$IS_FORCE" ||
+	    panic "
+Can not continue; use '--force' to override this check"
     
+
 	pushd "$vdir" >/dev/null
 
 	test ! -L var/lib/rpm || {
@@ -416,6 +458,10 @@
 	findDir RPMETCDIR   "$cfgdir"/rpmetc   "$cfgdir"/base/rpm/etc    /etc/rpm /
 	findDir RPMSTATEDIR "$cfgdir"/rpmstate "$cfgdir"/base/rpm/state
     else
+	verifyDBTools "$vdir" 'external' db_load db_dump || test -n "$IS_FORCE" ||
+	    panic "
+Can not continue; use '--force' to override this check"
+
 	mkdir -m755 -p "$cfgdir"
 	local need_base=
 
@@ -460,8 +506,38 @@
 	pushd "$vdir" >/dev/null
 	    ## remove %_dbpath settings
 	    _substFile /etc/rpm/macros '/^%_dbpath[ \t].*/D'
+
+	    # dump and reload rpmdb to overcome db version mismatch problems
+	    if [ "$db_load" -a "$db_dump" ]; then
+		# dump with host db_dump
+		$db_dump var/lib/rpm/Packages > var/lib/rpm/.Packages.dump
+
+		# load with guest db_load.
+		$_RM -f var/lib/rpm/__db.*
+		mv var/lib/rpm/{Packages,.Packages.ORIG}
+		chroot . $db_load var/lib/rpm/Packages < var/lib/rpm/.Packages.dump
+		chroot . bin/rpm --rebuilddb 2>/dev/null
+		rm -f var/lib/rpm/.Packages.*
+	    fi
+
 	popd >/dev/null
     else
+
+	pushd "$vdir" >/dev/null
+	    if [ "$db_load" -a "$db_dump" ]; then
+		# dump and reload rpmdb to overcome db version mismatch problems
+
+		# dump with guest db_dump
+		$_RM -f var/lib/rpm/__db.*
+		chroot . $db_dump var/lib/rpm/Packages > var/lib/rpm/.Packages.dump
+
+		# load with host db_load
+		mv var/lib/rpm/{Packages,.Packages.ORIG}
+		$db_load var/lib/rpm/Packages < var/lib/rpm/.Packages.dump
+		rm -f var/lib/rpm/.Packages.*
+	    fi
+	popd >/dev/null
+
 	if test -n "$have_poldek"; then
 	    _copySecureRev "$vdir" /etc/poldek "$POLDEKETCDIR"
 	    _unhashAuto "$POLDEKETCDIR"/poldek.conf '/'