Change board list output sorting

Calling board list command now returns the detected boards sorted by
FQBN alphabetically, Arduino boards are always shown before all the
others.

commands/board/list.go

@@ -21,6 +21,7 @@ import (
 	"io/ioutil"
 	"net/http"
 	"regexp"
+	"sort"
 	"sync"
 
 	"github.com/arduino/arduino-cli/arduino/cores/packagemanager"
@@ -117,11 +118,16 @@ func identify(pm *packagemanager.PackageManager, port *commands.BoardPort) ([]*r
 	// first query installed cores through the Package Manager
 	logrus.Debug("Querying installed cores for board identification...")
 	for _, board := range pm.IdentifyBoard(port.IdentificationPrefs) {
+		// We need the Platform maintaner for sorting so we set it here
+		platform := &rpc.Platform{
+			Maintainer: board.PlatformRelease.Platform.Package.Maintainer,
+		}
 		boards = append(boards, &rpc.BoardListItem{
-			Name: board.Name(),
-			Fqbn: board.FQBN(),
-			Vid:  port.IdentificationPrefs.Get("vid"),
-			Pid:  port.IdentificationPrefs.Get("pid"),
+			Name:     board.Name(),
+			Fqbn:     board.FQBN(),
+			Platform: platform,
+			Vid:      port.IdentificationPrefs.Get("vid"),
+			Pid:      port.IdentificationPrefs.Get("pid"),
 		})
 	}
 
@@ -142,6 +148,25 @@ func identify(pm *packagemanager.PackageManager, port *commands.BoardPort) ([]*r
 		// boards)
 		boards = items
 	}
+
+	// Sort by FQBN alphabetically
+	sort.Slice(boards, func(i, j int) bool {
+		return boards[i].Fqbn < boards[j].Fqbn
+	})
+
+	// Put Arduino boards before others in case there are non Arduino boards with identical VID:PID combination
+	sort.SliceStable(boards, func(i, j int) bool {
+		if boards[i].Platform.Maintainer == "Arduino" && boards[j].Platform.Maintainer != "Arduino" {
+			return true
+		}
+		return false
+	})
+
+	// We need the Board's Platform only for sorting but it shouldn't be present in the output
+	for _, board := range boards {
+		board.Platform = nil
+	}
+
 	return boards, nil
 }
 

commands/board/list_test.go

@@ -19,12 +19,16 @@ import (
 	"fmt"
 	"net/http"
 	"net/http/httptest"
+	"os"
 	"testing"
 
+	"github.com/arduino/arduino-cli/arduino/cores/packagemanager"
 	"github.com/arduino/arduino-cli/commands"
 	"github.com/arduino/arduino-cli/configuration"
+	"github.com/arduino/go-paths-helper"
 	"github.com/arduino/go-properties-orderedmap"
 	"github.com/stretchr/testify/require"
+	semver "go.bug.st/relaxed-semver"
 )
 
 func init() {
@@ -109,3 +113,53 @@ func TestBoardDetectionViaAPIWithNonUSBPort(t *testing.T) {
 	require.Equal(t, err, ErrNotFound)
 	require.Empty(t, items)
 }
+
+func TestBoardIdentifySorting(t *testing.T) {
+	dataDir := paths.TempDir().Join("test", "data_dir")
+	os.Setenv("ARDUINO_DATA_DIR", dataDir.String())
+	dataDir.MkdirAll()
+	defer paths.TempDir().Join("test").RemoveAll()
+
+	// We don't really care about the paths in this case
+	pm := packagemanager.NewPackageManager(dataDir, dataDir, dataDir, dataDir)
+
+	// Create some boards with identical VID:PID combination
+	pack := pm.Packages.GetOrCreatePackage("packager")
+	pack.Maintainer = "NotArduino"
+	platform := pack.GetOrCreatePlatform("platform")
+	platformRelease := platform.GetOrCreateRelease(semver.MustParse("0.0.0"))
+	platformRelease.InstallDir = dataDir
+	board := platformRelease.GetOrCreateBoard("boardA")
+	board.Properties.Set("vid", "0x0000")
+	board.Properties.Set("pid", "0x0000")
+	board = platformRelease.GetOrCreateBoard("boardB")
+	board.Properties.Set("vid", "0x0000")
+	board.Properties.Set("pid", "0x0000")
+
+	// Create some Arduino boards with same VID:PID combination as boards created previously
+	pack = pm.Packages.GetOrCreatePackage("arduino")
+	pack.Maintainer = "Arduino"
+	platform = pack.GetOrCreatePlatform("avr")
+	platformRelease = platform.GetOrCreateRelease(semver.MustParse("0.0.0"))
+	platformRelease.InstallDir = dataDir
+	board = platformRelease.GetOrCreateBoard("nessuno")
+	board.Properties.Set("vid", "0x0000")
+	board.Properties.Set("pid", "0x0000")
+	board = platformRelease.GetOrCreateBoard("assurdo")
+	board.Properties.Set("vid", "0x0000")
+	board.Properties.Set("pid", "0x0000")
+
+	idPrefs := properties.NewMap()
+	idPrefs.Set("vid", "0x0000")
+	idPrefs.Set("pid", "0x0000")
+	res, err := identify(pm, &commands.BoardPort{IdentificationPrefs: idPrefs})
+	require.NoError(t, err)
+	require.NotNil(t, res)
+	require.Len(t, res, 4)
+
+	// Verify expected sorting
+	require.Equal(t, res[0].Fqbn, "arduino:avr:assurdo")
+	require.Equal(t, res[1].Fqbn, "arduino:avr:nessuno")
+	require.Equal(t, res[2].Fqbn, "packager:platform:boardA")
+	require.Equal(t, res[3].Fqbn, "packager:platform:boardB")
+}