On 2017-06-11 19:07, Bradley Giesbrecht wrote: >> 4. Another thing that ran my mind while pondering that there are 2 options >> for sqlite database as well: make the tables in the very beginning (while >> initial installation) or while running the snapshot for the first time. I >> suggest to go with the first one because it's simple. >> The major target is to finish the snapshot action before Jun 24. > > Does “port selfupdate” constitute an “initial installation”? > > Does port currently perform schema checks? > > If port can detect if the schema needs updating then perhaps we can hook in > and “do the right thing".
For testing it should be enough to just modify the registry.db locally as you need it. Once you reach a stable schema, you will have to add modifications to the registry schema at two places. 1) The initial database schema for new installations is defined here: https://github.com/macports/macports-base/blob/e3a0dc2ebde62a9c5feac6a1edee1708a95bb02a/src/cregistry/sql.c#L122-L131 2) The metadata table in registry.db has a row with key='version', where value holds the schema version. The code to update from one schema version to the next is here: https://github.com/macports/macports-base/blob/e3a0dc2ebde62a9c5feac6a1edee1708a95bb02a/src/cregistry/sql.c#L231-L240 Rainer
