feat: add upstream and verbose flags to command line interface

feat: add upstream support allowing to chain cache servers if needed
fix: tweaked garbage collection to be better

cmd/root.go

@@ -4,6 +4,7 @@ import (
 	"os"
 	"s1d3sw1ped/SteamCache2/steamcache"
 
+	"github.com/rs/zerolog"
 	"github.com/spf13/cobra"
 )
 
@@ -13,6 +14,10 @@ var (
 	disk             string
 	diskmultiplier   int
 	diskpath         string
+	upstream         string
+
+	pprof   bool
+	verbose bool
 )
 
 var rootCmd = &cobra.Command{
@@ -24,6 +29,10 @@ var rootCmd = &cobra.Command{
 	By caching game files, SteamCache2 ensures that subsequent downloads of the same files are served from the local cache, 
 	significantly improving download times and reducing the load on the internet connection.`,
 	Run: func(cmd *cobra.Command, args []string) {
+		if verbose {
+			zerolog.SetGlobalLevel(zerolog.DebugLevel)
+		}
+
 		sc := steamcache.New(
 			":80",
 			memory,
@@ -31,6 +40,8 @@ var rootCmd = &cobra.Command{
 			disk,
 			diskmultiplier,
 			diskpath,
+			upstream,
+			pprof,
 		)
 		sc.Run()
 	},
@@ -51,4 +62,10 @@ func init() {
 	rootCmd.Flags().StringVarP(&disk, "disk", "d", "0", "The size of the disk cache")
 	rootCmd.Flags().IntVarP(&diskmultiplier, "disk-gc", "D", 100, "The gc value for the disk cache")
 	rootCmd.Flags().StringVarP(&diskpath, "disk-path", "p", "", "The path to the disk cache")
+
+	rootCmd.Flags().StringVarP(&upstream, "upstream", "u", "", "The upstream server to proxy requests overrides the host header from the client but forwards the original host header to the upstream server")
+
+	rootCmd.Flags().BoolVarP(&pprof, "pprof", "P", false, "Enable pprof")
+	rootCmd.Flags().MarkHidden("pprof")
+	rootCmd.Flags().BoolVarP(&verbose, "verbose", "v", false, "Enable verbose logging")
 }