chore: add PUBLIC_URL option

Author: albanm

src/app.ts

@@ -4,6 +4,7 @@ import helmet from 'helmet'
 // @ts-expect-error no types shipped with tileserver-gl-light
 import { server as tileserverGl } from 'tileserver-gl-light/src/server.js'
 import log from '#log'
+import config from '#config'
 import { buildTileserverConfig } from './build-config.ts'
 
 interface TileserverRunning {
@@ -22,7 +23,8 @@ export const createApp = async (): Promise<Express> => {
   const running = await (tileserverGl({
     config: tileserverConfig,
     port: 0,
-    silent: true
+    silent: true,
+    publicUrl: config.publicUrl
   }) as Promise<TileserverRunning>)
   await running.startupPromise
   await new Promise<void>((resolve, reject) => {

src/config.ts

@@ -16,6 +16,7 @@ const EnvSchema = z.object({
   STYLE_INCLUDE: z.string().default('').transform(parseList),
   STYLE_EXCLUDE: z.string().default('').transform(parseList),
   STYLE_ALIASES: z.string().default('').transform(parseAliases),
+  PUBLIC_URL: z.string().default('/tileserver/')
 })
 
 const parsed = EnvSchema.safeParse(process.env)
@@ -46,6 +47,7 @@ const config = {
   styleInclude: env.STYLE_INCLUDE,
   styleExclude: env.STYLE_EXCLUDE,
   styleAliases: env.STYLE_ALIASES,
+  publicUrl: env.PUBLIC_URL
 } as const
 
 export default config

tests/support/global-setup.ts

@@ -107,6 +107,7 @@ const globalSetup = async (): Promise<void> => {
       PORT: String(tileserverPort),
       DATA_DIR: dataDir,
       FONTS_DIR: fontsDir,
+      PUBLIC_URL: '/',
       OBSERVER_ACTIVE: 'false',
       LOG_LEVEL: 'info',
       NODE_ENV: 'test'