Fixed FQBN selection logic in monitor/arg command

Author: cmaglie

internal/cli/arguments/fqbn.go

@@ -64,6 +64,7 @@ func (f *Fqbn) Set(fqbn string) {
 // parameters provided by the user.
 // This determine the FQBN based on:
 // - the value of the FQBN flag if explicitly specified, otherwise
+// - the FQBN of the selected profile if available, otherwise
 // - the default FQBN value in sketch.yaml (`default_fqbn` key) if available, otherwise
 // - it tries to autodetect the board connected to the given port flags
 // If all above methods fails, it returns the empty string.
@@ -73,6 +74,9 @@ func (f *Fqbn) Set(fqbn string) {
 //     terminates the execution
 func CalculateFQBNAndPort(ctx context.Context, portArgs *Port, fqbnArg *Fqbn, instance *rpc.Instance, srv rpc.ArduinoCoreServiceServer, defaultFQBN, defaultAddress, defaultProtocol string, profile *rpc.SketchProfile) (string, *rpc.Port) {
 	fqbn := fqbnArg.String()
+	if fqbn == "" {
+		fqbn = profile.GetFqbn()
+	}
 	if fqbn == "" {
 		fqbn = defaultFQBN
 	}

internal/cli/monitor/monitor.go

@@ -110,12 +110,10 @@ func runMonitorCmd(
 
 	var inst *rpc.Instance
 	var profile *rpc.SketchProfile
-	if fqbnArg.String() == "" {
-		if profileArg.Get() == "" {
-			inst, profile = instance.CreateAndInitWithProfile(ctx, srv, sketch.GetDefaultProfile().GetName(), sketchPath)
-		} else {
-			inst, profile = instance.CreateAndInitWithProfile(ctx, srv, profileArg.Get(), sketchPath)
-		}
+	if profileArg.Get() == "" {
+		inst, profile = instance.CreateAndInitWithProfile(ctx, srv, sketch.GetDefaultProfile().GetName(), sketchPath)
+	} else {
+		inst, profile = instance.CreateAndInitWithProfile(ctx, srv, profileArg.Get(), sketchPath)
 	}
 	if inst == nil {
 		inst = instance.CreateAndInit(ctx, srv)

internal/integrationtest/monitor/monitor_test.go

@@ -394,5 +394,29 @@ yun.serial.disableDTR=true
 			require.Contains(t, string(stdout), "Configuration parity = none")
 			require.Contains(t, string(stdout), "Configuration stop_bits = 1")
 		})
+
+		t.Run("WithFQBN", func(t *testing.T) {
+			stdout, _, err := cli.RunWithCustomInput(quitMonitor(), "monitor", "-b", "arduino:avr:yun", "-m", "uno", "--raw", sketchWithPortAndConfigAndProfile)
+			require.NoError(t, err)
+			require.Contains(t, string(stdout), "Opened port: /dev/ttyPROF")
+			require.Contains(t, string(stdout), "Configuration rts = on") // This is taken from profile-installed AVR core (not patched by this test)
+			require.Contains(t, string(stdout), "Configuration dtr = on")
+			require.Contains(t, string(stdout), "Configuration baudrate = 19200")
+			require.Contains(t, string(stdout), "Configuration bits = 8")
+			require.Contains(t, string(stdout), "Configuration parity = none")
+			require.Contains(t, string(stdout), "Configuration stop_bits = 1")
+		})
+
+		t.Run("WithConfigFlag", func(t *testing.T) {
+			stdout, _, err := cli.RunWithCustomInput(quitMonitor(), "monitor", "-c", "odd", "-m", "uno", "--raw", sketchWithPortAndConfigAndProfile)
+			require.NoError(t, err)
+			require.Contains(t, string(stdout), "Opened port: /dev/ttyPROF")
+			require.Contains(t, string(stdout), "Configuration rts = on") // This is taken from profile-installed AVR core (not patched by this test)
+			require.Contains(t, string(stdout), "Configuration dtr = on")
+			require.Contains(t, string(stdout), "Configuration baudrate = 19200")
+			require.Contains(t, string(stdout), "Configuration bits = 8")
+			require.Contains(t, string(stdout), "Configuration parity = odd")
+			require.Contains(t, string(stdout), "Configuration stop_bits = 1")
+		})
 	})
 }