gRPC: added CleanDownloadCacheDirectory rpc call

Author: cmaglie

Diff for: commands/cache/clean.go

@@ -0,0 +1,33 @@
+// This file is part of arduino-cli.
+//
+// Copyright 2024 ARDUINO SA (http://www.arduino.cc/)
+//
+// This software is released under the GNU General Public License version 3,
+// which covers the main part of arduino-cli.
+// The terms of this license can be found at:
+// https://www.gnu.org/licenses/gpl-3.0.en.html
+//
+// You can be released from the requirements of the above licenses by purchasing
+// a commercial license. Buying such a license is mandatory if you want to
+// modify or otherwise use the software for commercial activities involving the
+// Arduino software without disclosing the source code of your own applications.
+// To purchase a commercial license, send an email to [email protected].
+
+package cache
+
+import (
+	"context"
+
+	"github.com/arduino/arduino-cli/internal/cli/configuration"
+	rpc "github.com/arduino/arduino-cli/rpc/cc/arduino/cli/commands/v1"
+)
+
+// CleanDownloadCacheDirectory clean the download cache directory (where archives are downloaded).
+func CleanDownloadCacheDirectory(ctx context.Context, req *rpc.CleanDownloadCacheDirectoryRequest) (*rpc.CleanDownloadCacheDirectoryResponse, error) {
+	cachePath := configuration.DownloadsDir(configuration.Settings)
+	err := cachePath.RemoveAll()
+	if err != nil {
+		return nil, err
+	}
+	return &rpc.CleanDownloadCacheDirectoryResponse{}, nil
+}

Diff for: commands/daemon/daemon.go

@@ -24,6 +24,7 @@ import (
 
 	"github.com/arduino/arduino-cli/commands"
 	"github.com/arduino/arduino-cli/commands/board"
+	"github.com/arduino/arduino-cli/commands/cache"
 	"github.com/arduino/arduino-cli/commands/cmderrors"
 	"github.com/arduino/arduino-cli/commands/compile"
 	"github.com/arduino/arduino-cli/commands/core"
@@ -581,3 +582,9 @@ func (s *ArduinoCoreServerImpl) Monitor(stream rpc.ArduinoCoreService_MonitorSer
 	}
 	return nil
 }
+
+// CleanDownloadCacheDirectory FIXMEDOC
+func (s *ArduinoCoreServerImpl) CleanDownloadCacheDirectory(ctx context.Context, req *rpc.CleanDownloadCacheDirectoryRequest) (*rpc.CleanDownloadCacheDirectoryResponse, error) {
+	resp, err := cache.CleanDownloadCacheDirectory(ctx, req)
+	return resp, convertErrorToRPCStatus(err)
+}

Diff for: internal/cli/cache/clean.go

@@ -16,10 +16,12 @@
 package cache
 
 import (
+	"context"
 	"os"
 
-	"github.com/arduino/arduino-cli/internal/cli/configuration"
+	"github.com/arduino/arduino-cli/commands/cache"
 	"github.com/arduino/arduino-cli/internal/cli/feedback"
+	rpc "github.com/arduino/arduino-cli/rpc/cc/arduino/cli/commands/v1"
 	"github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
 )
@@ -39,8 +41,7 @@ func initCleanCommand() *cobra.Command {
 func runCleanCommand(cmd *cobra.Command, args []string) {
 	logrus.Info("Executing `arduino-cli cache clean`")
 
-	cachePath := configuration.DownloadsDir(configuration.Settings)
-	err := cachePath.RemoveAll()
+	_, err := cache.CleanDownloadCacheDirectory(context.Background(), &rpc.CleanDownloadCacheDirectoryRequest{})
 	if err != nil {
 		feedback.Fatal(tr("Error cleaning caches: %v", err), feedback.ErrGeneric)
 	}