feat(config): pass root config to workspace config functions

Allow workspace config functions to access the root config via the
`rootConfig` property in the UserConfigFn context parameter.

Author: sxzz

dts.snapshot.json

@@ -164,7 +164,7 @@
     "TsdownInputOption": "type TsdownInputOption = Arrayable<string | Record<string, Arrayable<string>>>",
     "UserConfig": "interface UserConfig {\n entry?: TsdownInputOption\n deps?: DepsConfig\n external?: ExternalOption\n noExternal?: Arrayable<string | RegExp> | NoExternalFn\n inlineOnly?: Arrayable<string | RegExp> | false\n skipNodeModulesBundle?: boolean\n alias?: Record<string, string>\n tsconfig?: string | boolean\n platform?: 'node' | 'neutral' | 'browser'\n target?: string | string[] | false\n env?: Record<string, any>\n envFile?: string\n envPrefix?: string | string[]\n define?: Record<string, string>\n shims?: boolean\n treeshake?: boolean | TreeshakingOptions\n loader?: ModuleTypes\n removeNodeProtocol?: boolean\n nodeProtocol?: 'strip' | boolean\n checks?: ChecksOptions & { legacyCjs?: boolean }\n plugins?: InputOptions['plugins']\n inputOptions?: InputOptions | ((_: InputOptions, _: NormalizedFormat, _: { cjsDts: boolean }) => Awaitable<InputOptions | void | null>)\n format?: Format | Format[] | Partial<Record<Format, Partial<ResolvedConfig>>>\n globalName?: string\n outDir?: string\n write?: boolean\n sourcemap?: Sourcemap\n clean?: boolean | string[]\n minify?: boolean | 'dce-only' | MinifyOptions\n footer?: ChunkAddon\n banner?: ChunkAddon\n unbundle?: boolean\n root?: string\n bundle?: boolean\n fixedExtension?: boolean\n outExtensions?: OutExtensionFactory\n hash?: boolean\n cjsDefault?: boolean\n outputOptions?: OutputOptions | ((_: OutputOptions, _: NormalizedFormat, _: { cjsDts: boolean }) => Awaitable<OutputOptions | void | null>)\n cwd?: string\n name?: string\n logLevel?: LogLevel\n failOnWarn?: boolean | CIOption\n customLogger?: Logger\n fromVite?: boolean | 'vitest'\n watch?: boolean | Arrayable<string>\n ignoreWatch?: Arrayable<string | RegExp>\n devtools?: WithEnabled<DevtoolsOptions>\n onSuccess?: string | ((_: ResolvedConfig, _: AbortSignal) => void | Promise<void>)\n dts?: WithEnabled<DtsOptions>\n unused?: WithEnabled<UnusedOptions>\n publint?: WithEnabled<PublintOptions>\n attw?: WithEnabled<AttwOptions>\n report?: WithEnabled<ReportOptions>\n globImport?: boolean\n exports?: WithEnabled<ExportsOptions>\n css?: _tsdown_css0.CssOptions\n injectStyle?: boolean\n publicDir?: CopyOptions | CopyOptionsFn\n copy?: CopyOptions | CopyOptionsFn\n hooks?: Partial<TsdownHooks> | ((_: Hookable<TsdownHooks>) => Awaitable<void>)\n exe?: WithEnabled<ExeOptions>\n workspace?: Workspace | Arrayable<string> | true\n}",
     "UserConfigExport": "type UserConfigExport = Awaitable<Arrayable<UserConfig> | UserConfigFn>",
-    "UserConfigFn": "type UserConfigFn = (_: InlineConfig, _: { ci: boolean }) => Awaitable<Arrayable<UserConfig>>",
+    "UserConfigFn": "type UserConfigFn = (_: InlineConfig, _: { ci: boolean; rootConfig?: UserConfig }) => Awaitable<Arrayable<UserConfig>>",
     "WithEnabled": "type WithEnabled<T> = boolean | undefined | CIOption | (T & { enabled?: boolean | CIOption })",
     "Workspace": "interface Workspace {\n include?: Arrayable<string> | 'auto'\n exclude?: Arrayable<string>\n config?: boolean | string\n}"
   }

src/config/file.ts

@@ -57,6 +57,7 @@ const configPrefix = 'tsdown.config'
 export async function loadConfigFile(
   inlineConfig: InlineConfig,
   workspace?: string,
+  rootConfig?: UserConfig,
 ): Promise<{
   configs: UserConfig[]
   file?: string
@@ -119,7 +120,7 @@ export async function loadConfigFile(
 
     exported = await exported
     if (typeof exported === 'function') {
-      exported = await exported(inlineConfig, { ci: isInCi })
+      exported = await exported(inlineConfig, { ci: isInCi, rootConfig })
     }
   }
 

src/config/types.ts

@@ -619,7 +619,7 @@ export interface InlineConfig extends UserConfig {
 
 export type UserConfigFn = (
   inlineConfig: InlineConfig,
-  context: { ci: boolean },
+  context: { ci: boolean; rootConfig?: UserConfig },
 ) => Awaitable<Arrayable<UserConfig>>
 
 export type UserConfigExport = Awaitable<Arrayable<UserConfig> | UserConfigFn>

src/config/workspace.ts

@@ -19,7 +19,7 @@ export async function resolveWorkspace(
   config: UserConfig,
   inlineConfig: InlineConfig,
 ): Promise<{ configs: UserConfig[]; files?: string[] }> {
-  const normalized = { ...config, ...inlineConfig }
+  const normalized: UserConfig = { ...config, ...inlineConfig }
   const rootCwd = normalized.cwd || process.cwd()
 
   let { workspace } = normalized
@@ -74,6 +74,7 @@ export async function resolveWorkspace(
             cwd,
           },
           cwd,
+          normalized,
         )
         if (file) {
           debug('loaded workspace config file %s', file)