Improved core install/uninstall precodition checks

arduino/cores/cores.go

@@ -214,6 +214,11 @@ func (release *PlatformRelease) GetLibrariesDir() *paths.Path {
 	return nil
 }
 
+// IsInstalled returns true if the PlatformRelease is installed
+func (release *PlatformRelease) IsInstalled() bool {
+	return release.InstallDir != nil
+}
+
 func (release *PlatformRelease) String() string {
 	version := ""
 	if release.Version != nil {

commands/core/download.go

@@ -60,31 +60,30 @@ func downloadPlatformByRef(pm *packagemanager.PackageManager, platformsRef *pack
 		formatter.PrintError(err, "Could not determine platform dependencies")
 		os.Exit(commands.ErrBadCall)
 	}
-
-	// Check if all tools have a flavor available for the current OS
+	downloadPlatform(pm, platform)
 	for _, tool := range tools {
+		downloadTool(pm, tool)
+	}
+}
+
+func downloadPlatform(pm *packagemanager.PackageManager, platformRelease *cores.PlatformRelease) {
+	// Download platform
+	resp, err := pm.DownloadPlatformRelease(platformRelease)
+	download(resp, err, platformRelease.String())
+}
+
+func downloadTool(pm *packagemanager.PackageManager, tool *cores.ToolRelease) {
+	// Check if tool has a flavor available for the current OS
 	if tool.GetCompatibleFlavour() == nil {
 		formatter.PrintErrorMessage("The tool " + tool.String() + " is not available for the current OS")
 		os.Exit(commands.ErrGeneric)
 	}
-	}
 
-	// Download tools
-	for _, tool := range tools {
 	DownloadToolRelease(pm, tool)
-	}
-
-	// Download cores
-	formatter.Print("Downloading " + platform.String() + "...")
-	resp, err := pm.DownloadPlatformRelease(platform)
-	download(resp, err, platform.String())
-
-	logrus.Info("Done")
 }
 
 // DownloadToolRelease downloads a ToolRelease
 func DownloadToolRelease(pm *packagemanager.PackageManager, toolRelease *cores.ToolRelease) {
-	formatter.Print("Downloading " + toolRelease.String() + "...")
 	resp, err := pm.DownloadToolRelease(toolRelease)
 	download(resp, err, toolRelease.String())
 }
@@ -98,6 +97,7 @@ func download(d *downloader.Downloader, err error, label string) {
 		formatter.Print(label + " already downloaded")
 		return
 	}
+	formatter.Print("Downloading " + label + "...")
 	formatter.DownloadProgressBar(d, label)
 	if d.Error() != nil {
 		formatter.PrintError(d.Error(), "Error downloading "+label)

commands/core/install.go

@@ -50,7 +50,6 @@ func runInstallCommand(cmd *cobra.Command, args []string) {
 	pm := commands.InitPackageManagerWithoutBundles()
 
 	for _, platformRef := range platformsRefs {
-		downloadPlatformByRef(pm, platformRef)
 		installPlatformByRef(pm, platformRef)
 	}
 
@@ -64,19 +63,39 @@ func installPlatformByRef(pm *packagemanager.PackageManager, platformRef *packag
 		os.Exit(commands.ErrBadCall)
 	}
 
-	// TODO: Check install prerequisites here
+	installPlatform(pm, platform, tools)
+}
 
-	// TODO: Download here
+func installPlatform(pm *packagemanager.PackageManager, platformRelease *cores.PlatformRelease, requiredTools []*cores.ToolRelease) {
+	log := pm.Log.WithField("platform", platformRelease)
 
-	for _, tool := range tools {
-		InstallToolRelease(pm, tool)
+	// Prerequisite checks before install
+	if platformRelease.IsInstalled() {
+		log.Warn("Platform already installed")
+		formatter.Print("Platform " + platformRelease.String() + " already installed")
+		return
+	}
+	toolsToInstall := []*cores.ToolRelease{}
+	for _, tool := range requiredTools {
+		if tool.IsInstalled() {
+			log.WithField("tool", tool).Warn("Tool already installed")
+			formatter.Print("Tool " + tool.String() + " already installed")
+		} else {
+			toolsToInstall = append(toolsToInstall, tool)
+		}
 	}
-	installPlatformRelease(pm, platform)
-}
 
-func installPlatformRelease(pm *packagemanager.PackageManager, platformRelease *cores.PlatformRelease) {
-	log := pm.Log.WithField("platform", platformRelease)
+	// Package download
+	for _, tool := range toolsToInstall {
+		downloadTool(pm, tool)
+	}
+	downloadPlatform(pm, platformRelease)
 
+	for _, tool := range toolsToInstall {
+		InstallToolRelease(pm, tool)
+	}
+
+	// Are we installing or upgrading?
 	platform := platformRelease.Platform
 	installed := pm.GetInstalledPlatformRelease(platform)
 	if installed == nil {
@@ -87,12 +106,8 @@ func installPlatformRelease(pm *packagemanager.PackageManager, platformRelease *
 		formatter.Print("Updating " + installed.String() + " with " + platformRelease.String() + "...")
 	}
 
+	// Install
 	err := pm.InstallPlatform(platformRelease)
-	if os.IsExist(err) {
-		log.Warn("Platform already installed")
-		formatter.Print("Platform " + platformRelease.String() + " already installed")
-		return
-	}
 	if err != nil {
 		log.WithError(err).Error("Cannot install platform")
 		formatter.PrintError(err, "Cannot install platform")
@@ -125,15 +140,15 @@ func installPlatformRelease(pm *packagemanager.PackageManager, platformRelease *
 func InstallToolRelease(pm *packagemanager.PackageManager, toolRelease *cores.ToolRelease) {
 	log := pm.Log.WithField("Tool", toolRelease)
 
-	log.Info("Installing tool")
-	formatter.Print("Installing " + toolRelease.String())
-
-	err := pm.InstallTool(toolRelease)
-	if os.IsExist(err) {
+	if toolRelease.IsInstalled() {
 		log.Warn("Tool already installed")
 		formatter.Print("Tool " + toolRelease.String() + " already installed")
 		return
 	}
+
+	log.Info("Installing tool")
+	formatter.Print("Installing " + toolRelease.String() + "...")
+	err := pm.InstallTool(toolRelease)
 	if err != nil {
 		log.WithError(err).Warn("Cannot install tool")
 		formatter.PrintError(err, "Cannot install tool: "+toolRelease.String())

commands/core/uninstall.go

@@ -103,7 +103,7 @@ func uninstallToolRelease(pm *packagemanager.PackageManager, toolRelease *cores.
 	log := pm.Log.WithField("Tool", toolRelease)
 
 	log.Info("Uninstalling tool")
-	formatter.Print("Uninstalling " + toolRelease.String())
+	formatter.Print("Uninstalling " + toolRelease.String() + "...")
 
 	if err := pm.UninstallTool(toolRelease); err != nil {
 		log.WithError(err).Error("Error uninstalling")