Add a script to create initial db dump

For the purposes of creating a dump suitable for importing into a fresh
database during initial setup, add a script that creates a dump of an
existing database with the complete structure but without any data that
involves users (or anything else we don't want).

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>

layerindex/tools/initial_db_dump.sh

@@ -0,0 +1,67 @@
+#!/bin/sh
+
+# Dump database without user tables (for the purpose of creating a dump
+# that can be imported into a fresh database)
+#
+# Copyright (C) 2019 Intel Corporation
+# Author: Paul Eggleton <paul.eggleton@linux.intel.com>
+#
+# Licensed under the MIT license, see COPYING.MIT for details
+
+if [ "$1" = "" ] ; then
+    echo "Please specify a database"
+    exit 1
+fi
+
+if [ "$2" = "" ] ; then
+    echo "Please specify an output file (.sql)"
+    exit 1
+fi
+
+if [ -f $2 ] ; then
+    echo "File $2 already exists"
+    exit 1
+fi
+
+if [ -f $2.gz ] ; then
+    echo "File $2.gz already exists"
+    exit 1
+fi
+
+# This will ask for the password twice, not much we can really do about
+# that though
+# First, get the structure without data
+mysqldump $1 -u root -p --no-data > $2
+# Second, the data with a number of exclusions
+mysqldump $1 -u root -p --no-create-info \
+  --ignore-table=$1.auth_group \
+  --ignore-table=$1.auth_group_permissions \
+  --ignore-table=$1.auth_permission \
+  --ignore-table=$1.auth_user \
+  --ignore-table=$1.auth_user_groups \
+  --ignore-table=$1.auth_user_user_permissions \
+  --ignore-table=$1.layerindex_userprofile \
+  --ignore-table=$1.layerindex_securityquestionanswer \
+  --ignore-table=$1.layerindex_sitenotice \
+  --ignore-table=$1.layerindex_layerupdate \
+  --ignore-table=$1.layerindex_update \
+  --ignore-table=$1.reversion_revision \
+  --ignore-table=$1.reversion_version \
+  --ignore-table=$1.rrs_maintainer \
+  --ignore-table=$1.rrs_maintenanceplan \
+  --ignore-table=$1.rrs_maintenanceplanlayerbranch \
+  --ignore-table=$1.rrs_milestone \
+  --ignore-table=$1.rrs_recipedistro \
+  --ignore-table=$1.rrs_recipemaintainer \
+  --ignore-table=$1.rrs_recipemaintainerhistory \
+  --ignore-table=$1.rrs_recipemaintenancelink \
+  --ignore-table=$1.rrs_recipeupgrade \
+  --ignore-table=$1.rrs_recipeupstream \
+  --ignore-table=$1.rrs_recipeupstreamhistory \
+  --ignore-table=$1.rrs_release \
+  --ignore-table=$1.django_session \
+  --ignore-table=$1.django_admin_log \
+  --ignore-table=$1.axes_accessattempt \
+  --ignore-table=$1.axes_accesslog \
+  >> $2
+gzip $2