Factored --discovery-timeout flag and added timeout to board autodetection

Author: cmaglie

cli/arguments/port.go

@@ -40,7 +40,7 @@ import (
 type Port struct {
 	address  string
 	protocol string
-	timeout  time.Duration
+	timeout  DiscoveryTimeout
 }
 
 // AddToCommand adds the flags used to set port and protocol to the specified Command
@@ -53,7 +53,7 @@ func (p *Port) AddToCommand(cmd *cobra.Command) {
 	cmd.RegisterFlagCompletionFunc("protocol", func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
 		return GetInstalledProtocols(), cobra.ShellCompDirectiveDefault
 	})
-	cmd.Flags().DurationVar(&p.timeout, "discovery-timeout", 5*time.Second, tr("Max time to wait for port discovery, e.g.: 30s, 1m"))
+	p.timeout.AddToCommand(cmd)
 }
 
 // GetPortAddressAndProtocol returns only the port address and the port protocol
@@ -127,7 +127,7 @@ func (p *Port) GetPort(instance *rpc.Instance, sk *sketch.Sketch) (*discovery.Po
 		}
 	}()
 
-	deadline := time.After(p.timeout)
+	deadline := time.After(p.timeout.Get())
 	for {
 		select {
 		case portEvent := <-eventChan:
@@ -154,14 +154,17 @@ func (p *Port) GetPort(instance *rpc.Instance, sk *sketch.Sketch) (*discovery.Po
 
 // GetSearchTimeout returns the timeout
 func (p *Port) GetSearchTimeout() time.Duration {
-	return p.timeout
+	return p.timeout.Get()
 }
 
 // DetectFQBN tries to identify the board connected to the port and returns the
 // discovered Port object together with the FQBN. If the port does not match
 // exactly 1 board,
 func (p *Port) DetectFQBN(inst *rpc.Instance) (string, *rpc.Port) {
-	detectedPorts, err := board.List(&rpc.BoardListRequest{Instance: inst})
+	detectedPorts, err := board.List(&rpc.BoardListRequest{
+		Instance: inst,
+		Timeout:  p.timeout.Get().Milliseconds(),
+	})
 	if err != nil {
 		feedback.Errorf(tr("Error during FQBN detection: %v", err))
 		os.Exit(errorcodes.ErrGeneric)

cli/board/list.go

@@ -19,9 +19,9 @@ import (
 	"fmt"
 	"os"
 	"sort"
-	"time"
 
 	"github.com/arduino/arduino-cli/arduino/cores"
+	"github.com/arduino/arduino-cli/cli/arguments"
 	"github.com/arduino/arduino-cli/cli/errorcodes"
 	"github.com/arduino/arduino-cli/cli/feedback"
 	"github.com/arduino/arduino-cli/cli/instance"
@@ -33,21 +33,21 @@ import (
 )
 
 var (
-	timeout time.Duration
-	watch   bool
+	timeoutArg arguments.DiscoveryTimeout
+	watch      bool
 )
 
 func initListCommand() *cobra.Command {
 	listCommand := &cobra.Command{
 		Use:     "list",
 		Short:   tr("List connected boards."),
 		Long:    tr("Detects and displays a list of boards connected to the current computer."),
-		Example: "  " + os.Args[0] + " board list --timeout 10s",
+		Example: "  " + os.Args[0] + " board list --discovery-timeout 10s",
 		Args:    cobra.NoArgs,
 		Run:     runListCommand,
 	}
 
-	listCommand.Flags().DurationVar(&timeout, "discovery-timeout", time.Second, tr("Max time to wait for port discovery, e.g.: 30s, 1m"))
+	timeoutArg.AddToCommand(listCommand)
 	listCommand.Flags().BoolVarP(&watch, "watch", "w", false, tr("Command keeps running and prints list of connected boards whenever there is a change."))
 
 	return listCommand
@@ -66,7 +66,7 @@ func runListCommand(cmd *cobra.Command, args []string) {
 
 	ports, err := board.List(&rpc.BoardListRequest{
 		Instance: inst,
-		Timeout:  timeout.Milliseconds(),
+		Timeout:  timeoutArg.Get().Milliseconds(),
 	})
 	if err != nil {
 		feedback.Errorf(tr("Error detecting boards: %v"), err)