Allow library listing filter by name

Author: cmaglie

cli/lib/examples.go

@@ -51,21 +51,19 @@ func runExamplesCommand(cmd *cobra.Command, args []string) {
 	res, err := lib.LibraryList(context.Background(), &rpc.LibraryListReq{
 		Instance: instance,
 		All:      true,
+		Name:     args[0],
 	})
 	if err != nil {
 		feedback.Errorf("Error getting libraries info: %v", err)
 		os.Exit(errorcodes.ErrGeneric)
 	}
 
-	libs := res.GetInstalledLibrary()
 	found := []*libraryExamples{}
-	for _, lib := range libs {
-		if lib.Library.Name == args[0] {
-			found = append(found, &libraryExamples{
-				Library:  lib.Library,
-				Examples: lib.Library.Examples,
-			})
-		}
+	for _, lib := range res.GetInstalledLibrary() {
+		found = append(found, &libraryExamples{
+			Library:  lib.Library,
+			Examples: lib.Library.Examples,
+		})
 	}
 
 	feedback.PrintResult(libraryExamplesResult{found})

cli/lib/list.go

@@ -31,11 +31,14 @@ import (
 
 func initListCommand() *cobra.Command {
 	listCommand := &cobra.Command{
-		Use:     "list",
-		Short:   "Shows a list of all installed libraries.",
-		Long:    "Shows a list of all installed libraries.",
+		Use:   "list [LIBNAME]",
+		Short: "Shows a list of installed libraries.",
+		Long: "Shows a list of installed libraries.\n\n" +
+			"If the LIBNAME parameter is specified the listing is limited to that specific\n" +
+			"library. By default the libraries provided as built-in by platforms/core are\n" +
+			"not listed, they can be listed by adding the --all flag.",
 		Example: "  " + os.Args[0] + " lib list",
-		Args:    cobra.NoArgs,
+		Args:    cobra.MaximumNArgs(1),
 		Run:     runListCommand,
 	}
 	listCommand.Flags().BoolVar(&listFlags.all, "all", false, "Include built-in libraries (from platforms and IDE) in listing.")
@@ -52,10 +55,16 @@ func runListCommand(cmd *cobra.Command, args []string) {
 	instance := instance.CreateInstanceIgnorePlatformIndexErrors()
 	logrus.Info("Listing")
 
+	name := ""
+	if len(args) > 0 {
+		name = args[0]
+	}
+
 	res, err := lib.LibraryList(context.Background(), &rpc.LibraryListReq{
 		Instance:  instance,
 		All:       listFlags.all,
 		Updatable: listFlags.updatable,
+		Name:      name,
 	})
 	if err != nil {
 		feedback.Errorf("Error listing Libraries: %v", err)

commands/lib/list.go

@@ -17,6 +17,7 @@ package lib
 
 import (
 	"context"
+	"strings"
 
 	"github.com/arduino/arduino-cli/arduino/libraries"
 	"github.com/arduino/arduino-cli/arduino/libraries/librariesindex"
@@ -34,10 +35,15 @@ type installedLib struct {
 func LibraryList(ctx context.Context, req *rpc.LibraryListReq) (*rpc.LibraryListResp, error) {
 	lm := commands.GetLibraryManager(req.GetInstance().GetId())
 
+	nameFilter := strings.ToLower(req.GetName())
+
 	instaledLib := []*rpc.InstalledLibrary{}
 	res := listLibraries(lm, req.GetUpdatable(), req.GetAll())
 	if len(res) > 0 {
 		for _, lib := range res {
+			if nameFilter != "" && strings.ToLower(lib.Library.Name) != nameFilter {
+				continue
+			}
 			libtmp := GetOutputLibrary(lib.Library)
 			release := GetOutputRelease(lib.Available)
 			instaledLib = append(instaledLib, &rpc.InstalledLibrary{