Fix lib install with git url (#1143)

* Fix lib install with git url

* Better git url handling

Author: silvanocerza

Diff for: arduino/libraries/librariesmanager/install.go

@@ -19,6 +19,7 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"net/url"
 	"os"
 	"strings"
 
@@ -111,21 +112,42 @@ func (lm *LibrariesManager) InstallZipLib(ctx context.Context, archivePath strin
 }
 
 //InstallGitLib  installs a library hosted on a git repository on the specified path.
-func (lm *LibrariesManager) InstallGitLib(url string) error {
+func (lm *LibrariesManager) InstallGitLib(gitURL string) error {
 	libsDir := lm.getUserLibrariesDir()
 	if libsDir == nil {
 		return fmt.Errorf("User directory not set")
 	}
-	i := strings.LastIndex(url, "/")
-	folder := strings.TrimRight(url[i+1:], ".git")
-	path := libsDir.Join(folder)
 
-	_, err := git.PlainClone(path.String(), false, &git.CloneOptions{
-		URL:      url,
+	libraryName, err := parseGitURL(gitURL)
+	if err != nil {
+		return err
+	}
+
+	installPath := libsDir.Join(libraryName)
+
+	_, err = git.PlainClone(installPath.String(), false, &git.CloneOptions{
+		URL:      gitURL,
 		Progress: os.Stdout,
 	})
 	if err != nil {
 		return err
 	}
 	return nil
 }
+
+func parseGitURL(gitURL string) (string, error) {
+	var res string
+	if strings.HasPrefix(gitURL, "git@") {
+		// We can't parse these as URLs
+		i := strings.LastIndex(gitURL, "/")
+		res = strings.TrimRight(gitURL[i+1:], ".git")
+	} else if path := paths.New(gitURL); path.Exist() {
+		res = path.Base()
+	} else if parsed, err := url.Parse(gitURL); err == nil {
+		i := strings.LastIndex(parsed.Path, "/")
+		res = strings.TrimRight(parsed.Path[i+1:], ".git")
+	} else {
+		return "", fmt.Errorf("invalid git url")
+	}
+	return res, nil
+}

Diff for: cli/lib/install.go

@@ -29,6 +29,7 @@ import (
 	"github.com/arduino/arduino-cli/commands/lib"
 	"github.com/arduino/arduino-cli/configuration"
 	rpc "github.com/arduino/arduino-cli/rpc/commands"
+	"github.com/arduino/go-paths-helper"
 	"github.com/spf13/cobra"
 )
 
@@ -85,9 +86,18 @@ func runInstallCommand(cmd *cobra.Command, args []string) {
 	}
 
 	if installFlags.gitURL {
+		url := args[0]
+		if url == "." {
+			wd, err := paths.Getwd()
+			if err != nil {
+				feedback.Errorf("Couldn't get current working directory: %v", err)
+				os.Exit(errorcodes.ErrGeneric)
+			}
+			url = wd.String()
+		}
 		gitlibraryInstallReq := &rpc.GitLibraryInstallReq{
 			Instance: instance,
-			Url:      args[0],
+			Url:      url,
 		}
 		err := lib.GitLibraryInstall(context.Background(), gitlibraryInstallReq, output.TaskProgress())
 		if err != nil {