Function reloadOnTsconfigChange

packages/vite/src/node/plugins/esbuild.ts:540–573

(
  server: ViteDevServer,
  changedFile: string,
)

}

export function reloadOnTsconfigChange(
  server: ViteDevServer,
  changedFile: string,
): void {
  // any tsconfig.json that's added in the workspace could be closer to a code file than a previously cached one
  // any json file in the tsconfig cache could have been used to compile ts
  if (changedFile.endsWith('.json')) {
    const cache = getTSConfigResolutionCache(server.config)
    if (changedFile.endsWith('/tsconfig.json')) {
      server.config.logger.info(
        `changed tsconfig file detected: ${changedFile} - Clearing cache and forcing full-reload to ensure TypeScript is compiled with updated config values.`,
        { clear: server.config.clearScreen, timestamp: true },
      )

      // TODO: more finegrained invalidation than the nuclear option below

      // clear module graph to remove code compiled with outdated config
      for (const environment of Object.values(server.environments)) {
        environment.moduleGraph.invalidateAll()
      }

      // reset the cache so that recompile works with up2date configs
      cache.clear()

      // reload environments
      for (const environment of Object.values(server.environments)) {
        environment.hot.send({
          type: 'full-reload',
          path: '*',
        })
      }
    }
  }
}