bugfix: Navigate method didn't work with Windows-style paths

Fix arduino#150

Author: cmaglie

Diff for: commands/root/root.go

@@ -126,6 +126,7 @@ func initConfigs() {
 	}
 
 	// Read configuration from global config file
+	logrus.Info("Checking for config file in: " + commands.Config.ConfigFile.String())
 	if commands.Config.ConfigFile.Exist() {
 		readConfigFrom(commands.Config.ConfigFile)
 	}
@@ -147,7 +148,7 @@ func initConfigs() {
 			readConfigFrom(path)
 		}
 	} else {
-		commands.Config.Navigate("/", pwd.String())
+		commands.Config.Navigate(pwd)
 	}
 
 	// Read configuration from old configuration file if found, but output a warning.

Diff for: configs/navigate.go

@@ -18,24 +18,19 @@
 package configs
 
 import (
-	"path/filepath"
-	"strings"
-
 	paths "github.com/arduino/go-paths-helper"
+	"github.com/sirupsen/logrus"
 )
 
-func (c *Configuration) Navigate(root, pwd string) {
-	relativePath, err := filepath.Rel(root, pwd)
-	if err != nil {
-		return
-	}
+func (c *Configuration) Navigate(pwd *paths.Path) {
+	parents := pwd.Clean().Parents()
 
 	// From the root to the current folder, search for arduino-cli.yaml files
-	parts := strings.Split(relativePath, string(filepath.Separator))
-	for i := range parts {
-		path := paths.New(root)
-		path = path.Join(parts[:i+1]...)
-		path = path.Join("arduino-cli.yaml")
-		_ = c.LoadFromYAML(path)
+	for i := range parents {
+		path := parents[len(parents)-i-1].Join("arduino-cli.yaml")
+		logrus.Info("Checking for config in: " + path.String())
+		if err := c.LoadFromYAML(path); err != nil {
+			logrus.WithError(err).Infof("error loading")
+		}
 	}
 }

Diff for: configs/navigate_test.go

@@ -24,6 +24,7 @@ import (
 	"testing"
 
 	"github.com/arduino/arduino-cli/configs"
+	paths "github.com/arduino/go-paths-helper"
 	homedir "github.com/mitchellh/go-homedir"
 	"github.com/sergi/go-diff/diffmatchpatch"
 )
@@ -36,13 +37,12 @@ func TestNavigate(t *testing.T) {
 	}
 	for _, tt := range tests {
 		t.Run(tt, func(t *testing.T) {
-			root := filepath.Join("testdata", "navigate", tt)
-			pwd := filepath.Join("testdata", "navigate", tt, "first", "second")
+			pwd := paths.New("testdata", "navigate", tt, "first", "second")
 			golden := filepath.Join("testdata", "navigate", tt, "golden.yaml")
 
 			config, _ := configs.NewConfiguration()
 
-			config.Navigate(root, pwd)
+			config.Navigate(pwd)
 			data, _ := config.SerializeToYAML()
 
 			diff(t, data, golden)