func()

in flag.go [298:356]
50 lines of code
9 McCabe index (conditional complexity)

func (f FlagSet) buildAuthConfig() (*config.AuthConfig, error) {
	clientId := f.flagClientId
	if path := f.flagClientIdFilePath; path != "" {
		// #nosec G304
		b, err := os.ReadFile(path)
		if err != nil {
			return nil, fmt.Errorf("reading Client ID from file %q: %v", path, err)
		}
		clientId = string(b)
	}

	clientSecret := f.flagClientSecret
	if path := f.flagClientSecretFilePath; path != "" {
		// #nosec G304
		b, err := os.ReadFile(path)
		if err != nil {
			return nil, fmt.Errorf("reading Client secret from file %q: %v", path, err)
		}
		clientSecret = string(b)
	}

	clientCertEncoded := f.flagClientCertificate
	if path := f.flagClientCertificatePath; path != "" {
		// #nosec G304
		b, err := os.ReadFile(path)
		if err != nil {
			return nil, fmt.Errorf("reading Client certificate from file %q: %v", path, err)
		}
		clientCertEncoded = base64.StdEncoding.EncodeToString(b)
	}

	oidcToken := f.flagOIDCToken
	if path := f.flagOIDCTokenFilePath; path != "" {
		// #nosec G304
		b, err := os.ReadFile(path)
		if err != nil {
			return nil, fmt.Errorf("reading OIDC token from file %q: %v", path, err)
		}
		oidcToken = strings.TrimSpace(string(b))
	}

	c := config.AuthConfig{
		Environment:               f.flagEnv,
		TenantID:                  f.flagTenantId,
		AuxiliaryTenantIDs:        f.flagAuxiliaryTenantIds.Value(),
		ClientID:                  clientId,
		ClientSecret:              clientSecret,
		ClientCertificateEncoded:  clientCertEncoded,
		ClientCertificatePassword: f.flagClientCertificatePassword,
		OIDCTokenRequestToken:     f.flagOIDCRequestToken,
		OIDCTokenRequestURL:       f.flagOIDCRequestURL,
		OIDCAssertionToken:        oidcToken,
		UseAzureCLI:               f.flagUseAzureCLICred,
		UseManagedIdentity:        f.flagUseManagedIdentityCred,
		UseOIDC:                   f.flagUseOIDCCred,
	}

	return &c, nil
}