Function runConfigEnvironmentHook

packages/vite/src/node/config.ts:2735–2760

(
  environments: Record<string, EnvironmentOptions>,
  plugins: Plugin[],
  logger: Logger,
  configEnv: ConfigEnv,
  isSsrTargetWebworkerSet: boolean,
)

}

async function runConfigEnvironmentHook(
  environments: Record<string, EnvironmentOptions>,
  plugins: Plugin[],
  logger: Logger,
  configEnv: ConfigEnv,
  isSsrTargetWebworkerSet: boolean,
): Promise<void> {
  const context = new BasicMinimalPluginContext<
    Omit<PluginContextMeta, 'watchMode'>
  >(basePluginContextMeta, logger)

  const environmentNames = Object.keys(environments)
  for (const p of getSortedPluginsByHook('configEnvironment', plugins)) {
    const hook = p.configEnvironment
    const handler = getHookHandler(hook)
    for (const name of environmentNames) {
      const res = await handler.call(context, name, environments[name], {
        ...configEnv,
        isSsrTargetWebworker: isSsrTargetWebworkerSet && name === 'ssr',
      })
      if (res) {
        environments[name] = mergeConfig(environments[name], res)
      }
    }
  }
}

function optimizeDepsDisabledBackwardCompatibility(
  resolved: ResolvedConfig,