Allow tilekiln generation to specify metadata

Tilekiln configs can include optional data for the creation of
a TileJSON document. All of the metadata is optional except for
id, which is used for storage and construction of URLs. In the
themepark config generation we set a default id, but otherwise
it takes it from the options passed.

Author: pnorman

.gitignore

@@ -1 +1,2 @@
 t-rex-config.toml
+shortbread_config

config/shortbread.lua

@@ -64,9 +64,13 @@ if osm2pgsql.mode == 'create' then
 --    themepark:plugin('t-rex'):write_config('t-rex-config.toml', {})
 
 -- Enable if you want to create a config file for the Tilekiln tile server.
--- (You must also create the directory 'tk'.)
+-- (You must also create the directory 'shortbread_config'.)
 --
---    themepark:plugin('tilekiln'):write_config('tk')
+--     themepark:plugin('tilekiln'):write_config('shortbread_config', {
+--         tileset = 'shortbread_v1',
+--         name = 'OpenStreetMap Shortbread',
+--         attribution = '<a href="https://www.openstreetmap.org/copyright">© OpenStreetMap</a>'
+--     })
 
 -- Enable if you want to create a taginfo project file.
 --

config/shortbread_gen.lua

@@ -96,9 +96,13 @@ if osm2pgsql.mode == 'create' then
 --     })
 
 -- Enable if you want to create a config file for the Tilekiln tile server.
--- (You must also create the directory 'tk'.)
+-- (You must also create the directory 'shortbread_config'.)
 --
---    themepark:plugin('tilekiln'):write_config('tk')
+--     themepark:plugin('tilekiln'):write_config('shortbread_config', {
+--         tileset = 'shortbread_v1',
+--         name = 'OpenStreetMap Shortbread',
+--         attribution = '<a href="https://www.openstreetmap.org/copyright">© OpenStreetMap</a>'
+--     })
 end
 
 -- ---------------------------------------------------------------------------

lua/themepark/plugins/tilekiln.lua

@@ -106,10 +106,10 @@ function plugin:write_config(directory, options)
 
     local config = {
         metadata = {
-            id = 'v1',
-            name = options.tileset or 'osm',
+            id = options.tileset or 'mytiles',
+            name = options.name,
             attribution = options.attribution or plugin.themepark.options.attribution,
-            version = '0.0.1',
+            version = options.version,
         },
         vector_layers = {}
     }