func ParseAndReadDynamicConfig()

in component/azstorage/config.go [565:634]
53 lines of code
13 McCabe index (conditional complexity)

func ParseAndReadDynamicConfig(az *AzStorage, opt AzStorageOptions, reload bool) error {
	log.Trace("ParseAndReadDynamicConfig : Reparsing config")

	// If block size and max concurrency is configured use those
	// A user provided value of 0 doesn't make sense for BlockSize, or MaxConcurrency.
	if opt.BlockSize != 0 {
		az.stConfig.blockSize = opt.BlockSize * 1024 * 1024
	}

	if opt.MaxConcurrency != 0 {
		az.stConfig.maxConcurrency = opt.MaxConcurrency
	}

	// Populate default tier
	if opt.DefaultTier != "" {
		az.stConfig.defaultTier = getAccessTierType(opt.DefaultTier)
	}

	az.stConfig.ignoreAccessModifiers = !opt.FailUnsupportedOp
	az.stConfig.validateMD5 = opt.ValidateMD5
	az.stConfig.updateMD5 = opt.UpdateMD5

	if config.IsSet(compName + ".virtual-directory") {
		az.stConfig.virtualDirectory = opt.VirtualDirectory
	} else {
		az.stConfig.virtualDirectory = true
	}

	if config.IsSet(compName+".max-results-for-list") && opt.MaxResultsForList > 0 {
		az.stConfig.maxResultsForList = opt.MaxResultsForList
	} else {
		az.stConfig.maxResultsForList = DefaultMaxResultsForList
	}

	if config.IsSet(compName + ".disable-compression") {
		az.stConfig.disableCompression = opt.DisableCompression
	} else {
		az.stConfig.disableCompression = DisableCompression
	}

	if config.IsSet(compName + ".honour-acl") {
		az.stConfig.honourACL = opt.HonourACL
	} else {
		az.stConfig.honourACL = false
	}

	// Auth related reconfig
	switch opt.AuthMode {
	case "sas":
		az.stConfig.authConfig.AuthMode = EAuthType.SAS()
		if opt.SaSKey == "" {
			return errors.New("SAS key not provided")
		}

		oldSas := az.stConfig.authConfig.SASKey
		az.stConfig.authConfig.SASKey = sanitizeSASKey(opt.SaSKey)

		if reload {
			log.Info("ParseAndReadDynamicConfig : SAS Key updated")

			if err := az.storage.UpdateServiceClient("saskey", az.stConfig.authConfig.SASKey); err != nil {
				az.stConfig.authConfig.SASKey = oldSas
				_ = az.storage.UpdateServiceClient("saskey", az.stConfig.authConfig.SASKey)
				return errors.New("SAS key update failure")
			}
		}
	}

	return nil
}