tcwg-lnt/create-server.sh: Remove database on schema change

Change-Id: I7453e2c59153d349e44889b5fc9dfcce3d19c071

1 files changed, 22 insertions, 11 deletions

diff --git a/tcwg-lnt/create-server.sh b/tcwg-lnt/create-server.sh
index ec70564e..ea58bf27 100755
--- a/tcwg-lnt/create-server.sh
+++ b/tcwg-lnt/create-server.sh
@@ -95,30 +95,41 @@ generate_schema()
 {
     local template=${1?}
     local tsname=${2?}
+    local outdir="$3"
 
     cat "${lnt_schemas_dir?}/$template.yaml.in" \
-           | sed "s/TSNAME/$tsname/g" \
-           > "${lnt_db_dir?}/schemas/$tsname.yaml"
+        | sed "s/TSNAME/$tsname/g" > "$outdir/$tsname.yaml"
 }
 
-if [ ! -d "$lnt_db_dir" ]; then
+tmp_schemas=$(mktemp -d)
+
+for config in "${bmk_configs[@]}"; do
+    generate_schema tcwg_bmk "$config" "$tmp_schemas"
+done
+
+for config in "${check_configs[@]}"; do
+    generate_schema tcwg_check "$config" "$tmp_schemas"
+done
+
+if [ -d "$lnt_db_dir" ]; then
+    if ! diff -rq "$lnt_db_dir/schemas" "$tmp_schemas"; then
+	# Schemas have changed, so start from a fresh database.
+	rm -rf "$lnt_db_dir"
+    fi
+fi
 
+if [ ! -d "$lnt_db_dir" ]; then
     lnt create "$lnt_db_dir" --name "$lnt_server_name" --stable-urls
 
     lnt_secret_token="$(echo $RANDOM | md5sum | cut -d' ' -f1)"
 
     sed -i "s/# \(api_auth_token =\).*/\1 '$lnt_secret_token'/" "$lnt_db_dir"/lnt.cfg
 
-    for config in "${bmk_configs[@]}"; do
-        generate_schema tcwg_bmk "$config"
-    done
-
-    for config in "${check_configs[@]}"; do
-        generate_schema tcwg_check "$config"
-    done
-
+    rsync -a --del "$tmp_schemas/" "$lnt_db_dir/schemas/"
 fi
 
+rm -rf "$tmp_schemas"
+
 # TODO schema update not yet supported
 #   eventually delete everything
 #   or just delete the updated testsuite (not supported yet in lnt)