Function saveCurrentProjectConfig

source code/utils/config.ts:1627–1700

(
  updater: (currentConfig: ProjectConfig) => ProjectConfig,
)

}

export function saveCurrentProjectConfig(
  updater: (currentConfig: ProjectConfig) => ProjectConfig,
): void {
  if (process.env.NODE_ENV === 'test') {
    const config = updater(TEST_PROJECT_CONFIG_FOR_TESTING)
    // Skip if no changes (same reference returned)
    if (config === TEST_PROJECT_CONFIG_FOR_TESTING) {
      return
    }
    Object.assign(TEST_PROJECT_CONFIG_FOR_TESTING, config)
    return
  }
  const absolutePath = getProjectPathForConfig()

  let written: GlobalConfig | null = null
  try {
    const didWrite = saveConfigWithLock(
      getGlobalClaudeFile(),
      createDefaultGlobalConfig,
      current => {
        const currentProjectConfig =
          current.projects?.[absolutePath] ?? DEFAULT_PROJECT_CONFIG
        const newProjectConfig = updater(currentProjectConfig)
        // Skip if no changes (same reference returned)
        if (newProjectConfig === currentProjectConfig) {
          return current
        }
        written = {
          ...current,
          projects: {
            ...current.projects,
            [absolutePath]: newProjectConfig,
          },
        }
        return written
      },
    )
    if (didWrite && written) {
      writeThroughGlobalConfigCache(written)
    }
  } catch (error) {
    logForDebugging(`Failed to save config with lock: ${error}`, {
      level: 'error',
    })

    // Same race window as saveGlobalConfig's fallback -- refuse to write
    // defaults over good cached config. See GH #3117.
    const config = getConfig(getGlobalClaudeFile(), createDefaultGlobalConfig)
    if (wouldLoseAuthState(config)) {
      logForDebugging(
        'saveCurrentProjectConfig fallback: re-read config is missing auth that cache has; refusing to write. See GH #3117.',
        { level: 'error' },
      )
      logEvent('tengu_config_auth_loss_prevented', {})
      return
    }
    const currentProjectConfig =
      config.projects?.[absolutePath] ?? DEFAULT_PROJECT_CONFIG