Removed globals.HTTPClientHeader global (#438)

To increase thread-safery and allow adding extra headers if needed.

Author: cmaglie

Diff for: cli/core/download.go

@@ -64,7 +64,7 @@ func runDownloadCommand(cmd *cobra.Command, args []string) {
 			Version:         platformRef.Version,
 		}
 		_, err := core.PlatformDownload(context.Background(), platformDownloadreq, output.ProgressBar(),
-			globals.HTTPClientHeader)
+			globals.NewHTTPClientHeader())
 		if err != nil {
 			feedback.Errorf("Error downloading %s: %v", args[i], err)
 			os.Exit(errorcodes.ErrNetwork)

Diff for: cli/core/install.go

@@ -65,7 +65,7 @@ func runInstallCommand(cmd *cobra.Command, args []string) {
 			Version:         platformRef.Version,
 		}
 		_, err := core.PlatformInstall(context.Background(), plattformInstallReq, output.ProgressBar(),
-			output.TaskProgress(), globals.HTTPClientHeader)
+			output.TaskProgress(), globals.NewHTTPClientHeader())
 		if err != nil {
 			feedback.Errorf("Error during install: %v", err)
 			os.Exit(errorcodes.ErrGeneric)

Diff for: cli/core/upgrade.go

@@ -90,7 +90,7 @@ func runUpgradeCommand(cmd *cobra.Command, args []string) {
 			Architecture:    platformRef.Architecture,
 		}
 
-		_, err := core.PlatformUpgrade(context.Background(), r, output.ProgressBar(), output.TaskProgress(), globals.HTTPClientHeader)
+		_, err := core.PlatformUpgrade(context.Background(), r, output.ProgressBar(), output.TaskProgress(), globals.NewHTTPClientHeader())
 		if err == core.ErrAlreadyLatest {
 			feedback.Printf("Platform %s is already at the latest version", platformRef)
 		} else if err != nil {

Diff for: cli/globals/globals.go

@@ -31,8 +31,6 @@ var (
 	Debug bool
 	// OutputFormat can be "text" or "json"
 	OutputFormat string
-	// HTTPClientHeader is the object that will be propagated to configure the clients inside the downloaders
-	HTTPClientHeader = getHTTPClientHeader()
 	// VersionInfo contains all info injected during build
 	VersionInfo = version.NewInfo(filepath.Base(os.Args[0]))
 	// Config FIXMEDOC
@@ -46,9 +44,9 @@ var (
 	LogLevel string
 )
 
-func getHTTPClientHeader() http.Header {
+// NewHTTPClientHeader returns the http.Header object that must be used by the clients inside the downloaders
+func NewHTTPClientHeader() http.Header {
 	userAgentValue := fmt.Sprintf("%s/%s (%s; %s; %s) Commit:%s", VersionInfo.Application,
 		VersionInfo.VersionString, runtime.GOARCH, runtime.GOOS, runtime.Version(), VersionInfo.Commit)
-	downloaderHeaders := http.Header{"User-Agent": []string{userAgentValue}}
-	return downloaderHeaders
+	return http.Header{"User-Agent": []string{userAgentValue}}
 }

Diff for: cli/instance/instance.go

@@ -36,7 +36,7 @@ func initInstance() *rpc.InitResp {
 	logrus.Info("Initializing package manager")
 	req := packageManagerInitReq()
 
-	resp, err := commands.Init(context.Background(), req, output.ProgressBar(), output.TaskProgress(), globals.HTTPClientHeader)
+	resp, err := commands.Init(context.Background(), req, output.ProgressBar(), output.TaskProgress(), globals.NewHTTPClientHeader())
 	if err != nil {
 		feedback.Errorf("Error initializing package manager: %v", err)
 		os.Exit(errorcodes.ErrGeneric)

Diff for: cli/lib/download.go

@@ -60,7 +60,7 @@ func runDownloadCommand(cmd *cobra.Command, args []string) {
 			Version:  library.Version,
 		}
 		_, err := lib.LibraryDownload(context.Background(), libraryDownloadReq, output.ProgressBar(),
-			globals.HTTPClientHeader)
+			globals.NewHTTPClientHeader())
 		if err != nil {
 			feedback.Errorf("Error downloading %s: %v", library, err)
 			os.Exit(errorcodes.ErrNetwork)

Diff for: cli/lib/install.go

@@ -60,7 +60,7 @@ func runInstallCommand(cmd *cobra.Command, args []string) {
 			Version:  library.Version,
 		}
 		err := lib.LibraryInstall(context.Background(), libraryInstallReq, output.ProgressBar(),
-			output.TaskProgress(), globals.HTTPClientHeader)
+			output.TaskProgress(), globals.NewHTTPClientHeader())
 		if err != nil {
 			feedback.Errorf("Error installing %s: %v", library, err)
 			os.Exit(errorcodes.ErrGeneric)

Diff for: cli/lib/upgrade.go

@@ -50,13 +50,13 @@ func runUpgradeCommand(cmd *cobra.Command, args []string) {
 	instance := instance.CreateInstaceIgnorePlatformIndexErrors()
 
 	if len(args) == 0 {
-		err := lib.LibraryUpgradeAll(instance.Id, output.ProgressBar(), output.TaskProgress(), globals.HTTPClientHeader)
+		err := lib.LibraryUpgradeAll(instance.Id, output.ProgressBar(), output.TaskProgress(), globals.NewHTTPClientHeader())
 		if err != nil {
 			feedback.Errorf("Error upgrading libraries: %v", err)
 			os.Exit(errorcodes.ErrGeneric)
 		}
 	} else {
-		err := lib.LibraryUpgrade(instance.Id, args, output.ProgressBar(), output.TaskProgress(), globals.HTTPClientHeader)
+		err := lib.LibraryUpgrade(instance.Id, args, output.ProgressBar(), output.TaskProgress(), globals.NewHTTPClientHeader())
 		if err != nil {
 			feedback.Errorf("Error upgrading libraries: %v", err)
 			os.Exit(errorcodes.ErrGeneric)

Diff for: commands/board/list.go

@@ -40,7 +40,7 @@ var (
 func apiByVidPid(url string) ([]*rpc.BoardListItem, error) {
 	retVal := []*rpc.BoardListItem{}
 	req, _ := http.NewRequest("GET", url, nil)
-	req.Header = globals.HTTPClientHeader
+	req.Header = globals.NewHTTPClientHeader()
 	req.Header.Set("Content-Type", "application/json")
 
 	if res, err := http.DefaultClient.Do(req); err == nil {