Add migration commands for SQLite; not PGSql

cmake/scripts/run_db_createfrom.cmake

@@ -0,0 +1,38 @@
+cmake_minimum_required(VERSION 3.16)
+
+include("${CMAKE_CURRENT_LIST_DIR}/cppbessotDbActionCommon.cmake")
+include("${CMAKE_CURRENT_LIST_DIR}/cppbessotDbActionTargetResolution.cmake")
+include("${CMAKE_CURRENT_LIST_DIR}/cppbessotDbActionSqlApply.cmake")
+
+cppbessot_db_action_require_var(CPPBESSOT_PROJECT_SOURCE_DIR)
+cppbessot_db_action_require_var(CPPBESSOT_WORKDIR)
+cppbessot_db_action_require_var(DB_CREATEFROM_SCHEMA_DIR)
+cppbessot_db_action_require_var(DB_TARGET)
+
+cppbessot_db_action_validate_db_target("${DB_TARGET}")
+if("${DB_TARGET}" STREQUAL "proddev")
+  message(FATAL_ERROR "db_createfrom does not support DB_TARGET=proddev.")
+endif()
+
+cppbessot_db_action_assert_schema_dir_ready("${DB_CREATEFROM_SCHEMA_DIR}")
+cppbessot_db_action_resolve_backend_for_target(
+  _backend
+  _sqlite_path
+  _pgsql_connstr
+  "${DB_TARGET}")
+cppbessot_db_action_backend_subdir(_backend_subdir "${_backend}")
+cppbessot_db_action_get_schema_dir_path(_schema_dir "${DB_CREATEFROM_SCHEMA_DIR}")
+set(_ddl_dir "${_schema_dir}/generated-sql-ddl/${_backend_subdir}")
+cppbessot_db_action_require_nonempty_sql_dir(
+  "${_ddl_dir}"
+  "db_createfrom cannot continue")
+cppbessot_db_action_collect_nonempty_sql_files(_sql_files "${_ddl_dir}")
+
+if("${_backend}" STREQUAL "sqlite")
+  cppbessot_db_action_reset_sqlite_db("${_sqlite_path}")
+  cppbessot_db_action_apply_sqlite_files("${_sqlite_path}" ${_sql_files})
+  return()
+endif()
+
+cppbessot_db_action_reset_pgsql_schema("${_pgsql_connstr}")
+cppbessot_db_action_apply_pgsql_files("${_pgsql_connstr}" ${_sql_files})