func launchNonInteractive()

in cmd/launch.go [221:269]
34 lines of code
8 McCabe index (conditional complexity)

func launchNonInteractive(h *ec2helper.EC2Helper) {
	simpleConfig := config.NewSimpleInfo()
	if flagConfig.Region != "" {
		simpleConfig.Region = flagConfig.Region
		h.ChangeRegion(simpleConfig.Region)
	}

	// Try to get config from the config file
	err := config.ReadConfig(simpleConfig, nil)
	if cli.ShowError(err, "Loading config failed") {
		// If getting config file fails, go for default values
		fmt.Println("Generating default config...")
		simpleConfig, err = h.GetDefaultSimpleConfig()
		if cli.ShowError(err, "Generating config failed") {
			return
		}
	}

	// Override config with flags if applicable
	config.OverrideConfigWithFlags(simpleConfig, flagConfig)

	// When the flags specify a launch template
	if flagConfig.LaunchTemplateId != "" {
		// If using a launch template, ignore the config file. Only read from the flags
		UseLaunchTemplateWithConfig(h, flagConfig)
		return
	}

	// When the config file specifies a launch template
	if simpleConfig.LaunchTemplateId != "" {
		UseLaunchTemplateWithConfig(h, simpleConfig)
		return
	}

	// Parse the simple string config to the detailed config with data structures for later use
	detailedConfig, err := h.ParseConfig(simpleConfig)
	if cli.ShowError(err, "Parsing config failed") {
		return
	}

	confirmation := question.AskConfirmationWithInput(simpleConfig, detailedConfig, false)

	// Launch the instance.
	_, err = h.LaunchInstance(simpleConfig, detailedConfig, confirmation == cli.ResponseYes)
	if cli.ShowError(err, "Launching instance failed") {
		return
	}
	ReadSaveConfig(simpleConfig)
}