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feat(schema): add type hints for runtime config (#18652)
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@ -9,10 +9,59 @@ export type { SchemaDefinition } from 'untyped'
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type DeepPartial<T> = T extends Function ? T : T extends Record<string, any> ? { [P in keyof T]?: DeepPartial<T[P]> } : T
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type ExtractUpperChunk<T extends string> = T extends `${infer A}${infer B}`
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? A extends Uppercase<A>
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? B extends `${Uppercase<string>}${infer Rest}`
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? B extends `${infer C}${Rest}`
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? `${A}${C}${ExtractUpperChunk<Rest>}`
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: never
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: A
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: ''
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: never
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type SliceLast<T extends string> = T extends `${infer A}${infer B}`
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? B extends `${infer C}${infer D}`
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? D extends ''
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? A
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: `${A}${C}${SliceLast<D>}`
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: ''
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: never
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type UpperSnakeCase<T extends string, State extends 'start' | 'lower' | 'upper' = 'start'> = T extends `${infer A}${infer B}`
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? A extends Uppercase<A>
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? A extends `${1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 0}`
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? `${A}${UpperSnakeCase<B, 'lower'>}`
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: State extends 'lower' | 'upper'
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? B extends `${SliceLast<ExtractUpperChunk<B>>}${infer Rest}`
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? SliceLast<ExtractUpperChunk<B>> extends ''
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? `_${A}_${UpperSnakeCase<B, 'start'>}`
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: `_${A}${SliceLast<ExtractUpperChunk<B>>}_${UpperSnakeCase<Rest, 'start'>}`
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: B extends Uppercase<B>
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? `_${A}${B}`
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: `_${A}${UpperSnakeCase<B, 'lower'>}`
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: State extends 'start'
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? `${A}${UpperSnakeCase<B, 'lower'>}`
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: never
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: State extends 'start' | 'lower'
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? `${Uppercase<A>}${UpperSnakeCase<B, 'lower'>}`
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: `_${Uppercase<A>}${UpperSnakeCase<B, 'lower'>}`
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: Uppercase<T>
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const message = Symbol('message')
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export type RuntimeValue<T, B extends string> = T & { [message]?: B }
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type Overrideable<T extends Record<string, any>, Path extends string = ''> = {
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[K in keyof T]?: K extends string
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? T[K] extends Record<string, any>
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? RuntimeValue<Overrideable<T[K], `${Path}_${UpperSnakeCase<K>}`>, `You can override this value at runtime with NUXT${Path}_${UpperSnakeCase<K>}`>
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: RuntimeValue<T[K], `You can override this value at runtime with NUXT${Path}_${UpperSnakeCase<K>}`>
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: never
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}
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/** User configuration in `nuxt.config` file */
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export interface NuxtConfig extends DeepPartial<Omit<ConfigSchema, 'vite'>> {
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export interface NuxtConfig extends DeepPartial<Omit<ConfigSchema, 'vite' | 'runtimeConfig'>> {
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// Avoid DeepPartial for vite config interface (#4772)
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vite?: ConfigSchema['vite']
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runtimeConfig?: Overrideable<RuntimeConfig>
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/**
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* Experimental custom config schema
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2
test/fixtures/basic/nuxt.config.ts
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2
test/fixtures/basic/nuxt.config.ts
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@ -49,6 +49,8 @@ export default defineNuxtConfig({
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}
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},
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runtimeConfig: {
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baseURL: '',
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baseAPIToken: '',
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privateConfig: 'secret_key',
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public: {
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needsFallback: undefined,
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18
test/fixtures/basic/types.ts
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18
test/fixtures/basic/types.ts
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@ -1,7 +1,7 @@
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import { expectTypeOf } from 'expect-type'
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import { describe, it } from 'vitest'
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import type { Ref } from 'vue'
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import type { AppConfig } from '@nuxt/schema'
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import type { AppConfig, RuntimeValue } from '@nuxt/schema'
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import type { FetchError } from 'ofetch'
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import type { NavigationFailure, RouteLocationNormalizedLoaded, RouteLocationRaw, useRouter as vueUseRouter } from 'vue-router'
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@ -124,9 +124,25 @@ describe('runtimeConfig', () => {
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it('generated runtimeConfig types', () => {
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const runtimeConfig = useRuntimeConfig()
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expectTypeOf(runtimeConfig.public.testConfig).toEqualTypeOf<number>()
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expectTypeOf(runtimeConfig.public.needsFallback).toEqualTypeOf<string>()
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expectTypeOf(runtimeConfig.privateConfig).toEqualTypeOf<string>()
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expectTypeOf(runtimeConfig.unknown).toEqualTypeOf<any>()
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})
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it('provides hints on overriding these values', () => {
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const val = defineNuxtConfig({
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runtimeConfig: {
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public: {
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// @ts-expect-error
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testConfig: 'test'
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}
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}
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})
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expectTypeOf(val.runtimeConfig!.public!.testConfig).toEqualTypeOf<undefined | RuntimeValue<number, 'You can override this value at runtime with NUXT_PUBLIC_TEST_CONFIG'>>()
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expectTypeOf(val.runtimeConfig!.privateConfig).toEqualTypeOf<undefined | RuntimeValue<string, 'You can override this value at runtime with NUXT_PRIVATE_CONFIG'>>()
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expectTypeOf(val.runtimeConfig!.baseURL).toEqualTypeOf<undefined | RuntimeValue<string, 'You can override this value at runtime with NUXT_BASE_URL'>>()
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expectTypeOf(val.runtimeConfig!.baseAPIToken).toEqualTypeOf<undefined | RuntimeValue<string, 'You can override this value at runtime with NUXT_BASE_API_TOKEN'>>()
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expectTypeOf(val.runtimeConfig!.unknown).toEqualTypeOf<any>()
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})
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})
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describe('head', () => {
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