Added function PlatformRelease.RequiresToolRelease

This function will be usefult for cleanup during uninstall

arduino/cores/cores.go

@@ -184,6 +184,19 @@ func (release *PlatformRelease) GetOrCreateBoard(boardID string) *Board {
 	return board
 }
 
+// RequiresToolRelease returns true if the PlatformRelease requires the
+// toolReleased passed as parameter
+func (release *PlatformRelease) RequiresToolRelease(toolRelease *ToolRelease) bool {
+	for _, toolDep := range release.Dependencies {
+		if toolDep.ToolName == toolRelease.Tool.Name &&
+			toolDep.ToolPackager == toolRelease.Tool.Package.Name &&
+			toolDep.ToolVersion == toolRelease.Version {
+			return true
+		}
+	}
+	return false
+}
+
 // RuntimeProperties returns the runtime properties for this PlatformRelease
 func (release *PlatformRelease) RuntimeProperties() properties.Map {
 	return properties.Map{

arduino/cores/packagemanager/install_uninstall.go

@@ -46,3 +46,19 @@ func (pm *PackageManager) InstallTool(toolRelease *cores.ToolRelease) error {
 		toolRelease.Version.String())
 	return toolResource.Install(pm.DownloadDir, pm.TempDir, destDir)
 }
+
+// IsToolRequired returns true if any of the installed platforms requires the toolRelease
+// passed as parameter
+func (pm *PackageManager) IsToolRequired(toolRelease *cores.ToolRelease) bool {
+	// Search in all installed platforms
+	for _, targetPackage := range pm.packages.Packages {
+		for _, platform := range targetPackage.Platforms {
+			if platformRelease := platform.GetInstalled(); platformRelease != nil {
+				if platformRelease.RequiresToolRelease(toolRelease) {
+					return true
+				}
+			}
+		}
+	}
+	return false
+}