PMTiles is a web-optimized format, allowing the actual file to be read
with HTTP range requests. Supporting this use case instantly allows
Martin to function as a lambda executable accessing PMTiles, but without
any significant investment into devops or hosting large file.
PMTiles config now also allows `http` and `https` protocol.
```
# Publish PMTiles files
pmtiles:
paths:
# specific pmtiles file will be published as mypmtiles source
# (use last portion of the URL without extension)
- http://example.org/path/to/mypmtiles.pmtiles
sources:
# named source matching source name to a single file
pm-src1: https://example.org/path/to/some_pmtiles.pmtiles
```
fixes#884
---------
Co-authored-by: Kyle Slugg-Urbino <35903887+kyleslugg@users.noreply.github.com>
This adds a new utility called `martin-cp` that allows copying any
number of tiles from a single source (or a composite source) to an
mbtiles file.
`martin-cp` is a tool for generating tiles in bulk, and save retrieved
tiles into a new or an existing MBTiles file. It can be used to generate
tiles for a large area or multiple areas. If multiple areas overlap, it
will generate tiles only once. `martin-cp` supports the same
configuration file and CLI arguments as Martin server, so it can support
all sources and even combining sources.
* Fix metadata copying
* Introduce a new metadata field `agg_tiles_hash_after_apply` for diff
files
* Added a lot of new info and debug logging
* Simplified Copying interface - not much value in having all the
complex builder pattern here it seems, might as well use a simple
object.
## Testing
* Generate SQLite DBs in memory on the fly to validate just what we need
* Use `insta` for validating DB content
There is now a function `dump(connection) -> Vec<Entry>` to dump the
content of the entire SQLite DB into text with `serde`. At many steps
through the testing, the DB content is validated with the corresponding
.snap file with `insta` crate (which makes this process mega-simple,
including a simple way to "bless" (update) any changes).
## Discovered bugs
* Seems like normalized files do not get copied properly - they contain
extras that should be removed.
Dynamically create image sprites for MapLibre rendering, given a
directory with images.
### TODO
* [x] Work with @flother to merge these PRs
* [x] https://github.com/flother/spreet/pull/59 (must have)
* [x] https://github.com/flother/spreet/pull/57
* [x] https://github.com/flother/spreet/pull/56
* [ ] https://github.com/flother/spreet/pull/62 (not required but nice
to have, can upgrade later without any code changes)
* [x] Add docs to the book
* [x] Add CLI param, e.g. `--sprite <dir_path>`
* [x] Don't output `.sprites` in auto-genned config when not in use
### API
Per [MapLibre sprites
API](https://maplibre.org/maplibre-style-spec/sprite/), we need to
support the following:
* `/sprite/<sprite_id>.json` metadata about the sprite file - all coming
from a single directory
* `/sprite/<sprite_id>.png` all images combined into a single PNG
* `/sprite/<sprite_id>@2x.json` same but for high DPI devices
* `/sprite/<sprite_id>@2x.png`
Multiple sprite_id values can be combined into one sprite with the same
pattern as for tile joining:
`/sprite/<sprite_id1>,<sprite_id2>,...,<sprite_idN>[.json|.png|@2x.json|@2x.png]`.
No ID renaming is done, so identical names will override one another.
### Configuration
[Config file](https://maplibre.org/martin/config-file.html) and possibly
CLI should have a simple option to serve sprites. The configuration may
look similar to how mbtiles and pmtiles are configured:
```yaml
# Publish sprite images
sprites:
paths:
# scan this whole dir, matching all image files, and publishing it as "my_images" sprite source
- /path/to/my_images
sources:
# named source matching source name to a directory
my_sprites: /path/to/some_dir
```
Implement #705
Quoting DATABASE_URL content variable prevents an issue from the command
export. In case of a string (i.e. password) with given characters (i.e.
'('), it can make the command fail. Quoting it prevents that from
happening.
The issue happened on MacOS with an M1 chip.
- [x] add slack chat icon
- [x] merging maplibre/leaflet/mapbox demos into `using with clients`
- [x] cut off a lot contents
- [x] downgrade contents from h1 to h2
- [x] remove TOC .[GitHub will now automatically generate a table of
contents in the header when there are 2 or more
headings](https://github.blog/changelog/2021-04-13-table-of-contents-support-in-markdown-files/)
- [x] add link to the book in readme
---------
Co-authored-by: Yuri Astrakhan <yuriastrakhan@gmail.com>
* [BREAKING] Use source ID (table name) as the default layer ID, instead
of `schema.table.column`
* Add support for the optional `layer_id` table config parameter
Fix#595
* make tilejson's `name` be the same as the ID of the source (even if
aliased)
* `/catalog` will always show ID, but now it will hide the `name` if it
is the same as the `id`
* make `description` be the longer version, e.g. `public.table.column`
format - not guaranteed to be stable
* make `vector_layers` have the fields auto-discovered in the PG table
* preserve the order of the serialized json fields
Fixes#583
Compression middleware turned out to be hard to use for image cases - it
simply looks at the content-encoding, and if not set, tries to compress
if accepted by the client.
Instead, now individual routes are configured with either that
middleware, or for tiles, I decompress and optionally recompress if
applicable.
Now encoding is tracked separately from the tile content, making it
cleaner too. Plus lots of tests for mbtiles & pmtiles.
Fixes#577
Implements #384 - ability to limit the number of features included in a
tile from a Postgres table/view.
This allows zoomed-out view of a table with a reasonable speed because
each tile could be limited in size, rather than include millions of
features.
If set on a CLI, overrides whatever is set in the config file (if
given).
Any naming suggestions?
* added manual coverage justfile command
* a lot of small refactorings of config and argument parsing
* feature: support jsonb query param for functions
* cleaned up public/private access
* make all tests populate with a predefined values to avoid issues with
random data
* Support `postgres` config key to be either a list or an object
* Use `PathBuf` instead of `String` where dealing with files
* Merge `SrvConfigBuilder` into `SrvConfig`
* Parse keep_alive as u64
* More config tests
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
* bump docker compose to use latest supported db and postgis
* update justfile to allow simple legacy testing
* update readme
Followup: implement CI testing -- see #502
* 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.
