Can now handle several additional Postgres functions to get a tile, plus
tons of small fixes
### Multiple result variants
* `getmvt(z,x,y) -> [bytea,md5]` (single row with two columns)
* `getmvt(z,x,y) -> [bytea]` (single row with a single column)
* `getmvt(z,x,y) -> bytea` (value)
### Multiple input parameter variants
* `getmvt(z, x, y)` or `getmvt(zoom, x, y)` (all 3 vars must be
integers)
* `getmvt(z, x, y, url_query)`, where instead of `url_query` it could be
any other name, but must be of type JSON
### Breaking
* srid is now the same type as PG -- `i32`
* renamed config vals `table_sources` and `function_sources` into
`tables` and `functions`
### Features and fixes
* if postgis is v3.1+, uses margin parameter to extend the search box by
the size of the buffer. I think we should make 3.1 minimal required.
* fixes feature ID issue from #466
* fixes mixed case names for schemas, tables and columns, functions and
parameter names per #389
### Notes
* More dynamic SQL generation in code instead of using external SQL
files. Those should only be used when they are not parametrized.
* The new function/table discovery mechanism: query for all functions in
the database, and match up those functions with the ones configured (if
any), plus adds all the rest of the un-declared ones if discovery mode
is on.
* During table and function discovery, the code generates a map of
`(PgSqlInfo, FunctionInfo)` (or table) tupples containing SQL needed to
get the tile.
* Auto-discovery mode is currently hidden - the discovery is on only
when no tables or functions are configured. TBD - how to configure it in
the future
* The new system allows for an easy way to auto-discover for the
specific schemas only, solving #47
* predictable order of table/function instantiation
* bounding boxes computed in parallel for all tables (when not
configured)
* proper identifier escaping
* test cleanup
fixes#378fixes#466fixes#65fixes#389
* All tests and internal code now uses ST_TileEnvelope function
* Remove `tile_bbox`
* Rename test function sources for clarity - this will be needed in a
subsequent PR to add other function tests
Partial implementation of the #430
* New endpoint structure:
* `GET /` -- a placeholder for the future home page
* `GET /catalog` -- get a list of available sources, as a list of json
blobs.
* `[{id, name, description, attribution, vector_layer}, ...]` (some
fields might be missing)
* `GET /<id>` -- get tilejson for the given source, or a combination of
sources. No `.json` extension
* `GET /<id>/<z>/<x>/<y>` -- get a tile. No format extension.
* `GET /health` -- healthcheck
* Introduce a new tile format support crate (using code from the
maplibre/mbtileserve project)
* Removed the `/rpc/...` routes - all source IDs are accessed in the
same way
* Can print auto-generated configuration or save it to a file
* Refactored to support multiple sources from multiple backends, with a
proper naming conflict resolution
TODO:
* benchmarks need to be rewritten - they were relying on some internal
structures that are no longer there. This might be done as a separate PR
due to a very different internal architecture - might need to rethink
benchmarking approaches.
* Detect all unrecognized config file values, and report them. Ideally
we want to use `serde-ignored` crate, but it doesn't work with flattened
structs (yet). So using a bad workaround.
* CI test has been using all sorts of somewhat duplicated temporary pbf
files - cleaned up to `tmp.pbf`, and made sure curl only shows errors,
not download stats.
* In CI, crash psql instead of silently ignoring errors
* Don't serialize optional config values as nulls
* Tiny error message cleanup
* remove most of the utils:: and dev:: namespace usage
* rename `configure_db_source` to `configure_db_sources`
* use defaults from other table info objects (using the `..obj` syntax)
* use doc comments vs regular comment in a few places
* refactor server_test.rs to make it more readable and much shorter
* use a macro for identical code
* use a test_get() for identical GET request
* rename fn test_foo() into fn foo() for simplicity
A few minor simplifications in the config and appstate:
* default srid seems to be unused.
* simplify Config struct to have non-optional table and function sources. Ok to be empty.
* add a parsing unit test
* rename configs to distinct names for simplicity
I am making this as a separate PR to keep things easier -- the big upcoming PR will use a dynamic dispatch system for all types of sources
Getting ready for multi-backend system, where each backend would have its own configuration.
All 3 config structs (clap args, config, and configbuilder) are now separated into 3 files - the main one, one for service (actix stuff), and one for PostgreSQL.
The files have been moved to `/pg` and `/srv`, but otherwise the logic should be mostly intact.
* remove all actions and other low-level magic code, making it more straightforward for the most common usage
* replace r2d2 with bb8 to make it all async
* use first significant version in cargo.toml - this makes it easier to maintain
This fixes#349
This does not force automatic use statement sorting,
but it sorts all them now, and we can manually keep them ordered until
the fmt features becomes stable.
