func doConfigure()

in config/configure.go [109:234]
107 lines of code
33 McCabe index (conditional complexity)

func doConfigure(ctx *cli.Context, profileName string, mode string) error {
	w := ctx.Stdout()

	conf, err := loadConfiguration()
	if err != nil {
		return err
	}

	if profileName == "" {
		if conf.CurrentProfile == "" {
			profileName = "default"
		} else {
			profileName = conf.CurrentProfile
			originMode := string(conf.GetCurrentProfile(ctx).Mode)
			if mode == "" {
				mode = originMode
			} else if mode != originMode {
				cli.Printf(w, "Warning: You are changing the authentication type of profile '%s' from '%s' to '%s'\n", profileName, originMode, mode)
			}
		}
	}
	if mode == "" {
		mode = "AK"
	}
	cp, ok := conf.GetProfile(profileName)
	if !ok {
		cp = conf.NewProfile(profileName)
	}

	cli.Printf(w, "Configuring profile '%s' in '%s' authenticate mode...\n", profileName, mode)

	if mode != "" {
		switch AuthenticateMode(mode) {
		case AK:
			cp.Mode = AK
			configureAK(w, &cp)
		case StsToken:
			cp.Mode = StsToken
			configureStsToken(w, &cp)
		case RamRoleArn:
			cp.Mode = RamRoleArn
			configureRamRoleArn(w, &cp)
		case EcsRamRole:
			cp.Mode = EcsRamRole
			configureEcsRamRole(w, &cp)
		case RamRoleArnWithEcs:
			cp.Mode = RamRoleArnWithEcs
			configureRamRoleArnWithEcs(w, &cp)
		case ChainableRamRoleArn:
			cp.Mode = ChainableRamRoleArn
			configureChainableRamRoleArn(w, &cp)
		case RsaKeyPair:
			cp.Mode = RsaKeyPair
			configureRsaKeyPair(w, &cp)
		case External:
			cp.Mode = External
			configureExternal(w, &cp)
		case CredentialsURI:
			cp.Mode = CredentialsURI
			configureCredentialsURI(w, &cp)
		case OIDC:
			cp.Mode = OIDC
			configureOIDC(w, &cp)
		case CloudSSO:
			cp.Mode = CloudSSO
			// parameter from command has higher priority, use it directly
			if CloudSSOSignInUrlFlag(ctx.Flags()).IsAssigned() {
				cp.CloudSSOSignInUrl, _ = CloudSSOSignInUrlFlag(ctx.Flags()).GetValue()
			}
			if CloudSSOAccountIdFlag(ctx.Flags()).IsAssigned() {
				cp.CloudSSOAccountId, _ = CloudSSOAccountIdFlag(ctx.Flags()).GetValue()
			}
			if CloudSSOAccessConfigFlag(ctx.Flags()).IsAssigned() {
				cp.CloudSSOAccessConfig, _ = CloudSSOAccessConfigFlag(ctx.Flags()).GetValue()
			}
			err := configureCloudSSO(w, &cp)
			if err != nil {
				return err
			}
		default:
			return fmt.Errorf("unexcepted authenticate mode: %s", mode)
		}
	} else {
		configureAK(w, &cp)
	}

	// configure common
	if cp.Mode != CloudSSO || cp.RegionId == "" {
		cli.Printf(w, "Default Region Id [%s]: ", cp.RegionId)
		cp.RegionId = ReadInput(cp.RegionId)
	}

	if cp.Mode != CloudSSO || cp.OutputFormat == "" {
		cli.Printf(w, "Default Output Format [%s]: json (Only support json)\n", cp.OutputFormat)
		// cp.OutputFormat = ReadInput(cp.OutputFormat)
		cp.OutputFormat = "json"
	}

	if cp.Mode != CloudSSO || cp.Language == "" {
		cli.Printf(w, "Default Language [zh|en] %s: ", cp.Language)

		cp.Language = ReadInput(cp.Language)
		if cp.Language != "zh" && cp.Language != "en" {
			cp.Language = i18n.GetLanguage()
		}
	}

	//fmt.Printf("User site: [china|international|japan] %s", cp.Site)
	//cp.Site = ReadInput(cp.Site)

	cli.Printf(w, "Saving profile[%s] ...", profileName)

	conf.PutProfile(cp)
	conf.CurrentProfile = cp.Name
	err = hookSaveConfiguration(SaveConfiguration)(conf)
	// cp 要在下文的 DoHello 中使用，所以 需要建立 parent 的关系
	cp.parent = conf

	if err != nil {
		return err
	}
	cli.Printf(w, "Done.\n")

	DoHello(ctx, &cp)
	return nil
}