lib/mysql-functions: fail early, if mysql_retrieve_static_information() did not find an expected variable in the database

1 files changed, 8 insertions, 0 deletions

diff --git a/lib/mysql-functions b/lib/mysql-functions
index 1706c11..6a6a1e7 100755
--- a/lib/mysql-functions
+++ b/lib/mysql-functions
@@ -1440,6 +1440,7 @@ mysql_join_dependencies_install_target_providers_with_versions() {
 # - ids of compressions -> $compression_ids__$compression
 # - $package_compression_suffix_regex
 mysql_retrieve_static_information() {
+  local found_something
   eval "$(
     {
       printf 'SELECT CONCAT('
@@ -1514,8 +1515,15 @@ mysql_retrieve_static_information() {
       printf '"\\""'
       printf ') FROM `compressions`;\n'
     } \
+    | sed '
+      s@^\(SELECT \)\(.*\)$@SELECT "found_something=false;"; \1"found_something=true; ",\2 SELECT "if ! ${found_something}; then >\&2 echo \\"Some variable was not found in the database.\\"; exit 1; fi;";@
+    ' \
     | mysql_run_query
   )"
+  if ! ${found_something}; then
+    >&2 echo 'No variables were found in the database.'
+    exit 1
+  fi
 }
 
 # mysql_query_and_delete_unneeded_binary_packages