feat(cmd-flag): add --try-no-prompt flag (#1428)

Author: tinaboyce

cmd/saml2aws/commands/login.go

@@ -269,6 +269,10 @@ func resolveLoginDetails(account *cfg.IDPAccount, loginFlags *flags.LoginExecFla
 		return loginDetails, nil
 	}
 
+	if loginFlags.TryNoPrompt && loginDetails.Username != "" && loginDetails.Password != "" {
+		return loginDetails, nil
+	}
+
 	if account.Provider != "Shell" {
 		err = saml2aws.PromptForLoginDetails(loginDetails, account.Provider)
 		if err != nil {

cmd/saml2aws/main.go

@@ -126,6 +126,7 @@ func main() {
 	cmdLogin.Flag("download-browser-driver", "Automatically download browsers for Browser IDP. (env: SAML2AWS_AUTO_BROWSER_DOWNLOAD)").Envar("SAML2AWS_AUTO_BROWSER_DOWNLOAD").BoolVar(&loginFlags.DownloadBrowser)
 	cmdLogin.Flag("disable-sessions", "Do not use Okta sessions. Uses Okta sessions by default. (env: SAML2AWS_OKTA_DISABLE_SESSIONS)").Envar("SAML2AWS_OKTA_DISABLE_SESSIONS").BoolVar(&commonFlags.DisableSessions)
 	cmdLogin.Flag("disable-remember-device", "Do not remember Okta MFA device. Remembers MFA device by default. (env: SAML2AWS_OKTA_DISABLE_REMEMBER_DEVICE)").Envar("SAML2AWS_OKTA_DISABLE_REMEMBER_DEVICE").BoolVar(&commonFlags.DisableRememberDevice)
+	cmdLogin.Flag("try-no-prompt", "Only prompt for credentials if they cannot be read from keyring").BoolVar(&loginFlags.TryNoPrompt)
 
 	// `exec` command and settings
 	cmdExec := app.Command("exec", "Exec the supplied command with env vars from STS token.")

pkg/flags/flags.go

@@ -50,6 +50,7 @@ type LoginExecFlags struct {
 	DuoMFAOption      string
 	ExecProfile       string
 	CredentialProcess bool
+	TryNoPrompt       bool
 }
 
 type ConsoleFlags struct {