Add --binary-prefix to output IEC binary prefixes instead of SI decimal prefixes

README.md

@@ -139,6 +139,7 @@ Flags:
       --admin-prefix string   string to prepend to administrative paths
   -a, --all                   enable all supported file types
       --audio                 enable support for audio files
+      --binary-prefix         use IEC binary prefixes instead of SI decimal prefixes
   -b, --bind string           address to bind to (default "0.0.0.0")
       --case-sensitive        use case-sensitive matching for filters
       --code                  enable support for source code files

cmd/files.go

@@ -35,21 +35,33 @@ type scanStatsChannels struct {
 }
 
 func humanReadableSize(bytes int) string {
-	const unit = 1000
+	var unit int
+	var suffix string
+	var prefixes string
+
+	if BinaryPrefix {
+		unit = 1024
+		suffix = "iB"
+		prefixes = "KMGTPE"
+	} else {
+		unit = 1000
+		suffix = "B"
+		prefixes = "kMGTPE"
+	}
 
 	if bytes < unit {
 		return fmt.Sprintf("%d B", bytes)
 	}
 
-	div, exp := int64(unit), 0
+	div, exp := unit, 0
 
 	for n := bytes / unit; n >= unit; n /= unit {
 		div *= unit
 		exp++
 	}
 
-	return fmt.Sprintf("%.1f %cB",
-		float64(bytes)/float64(div), "KMGTPE"[exp])
+	return fmt.Sprintf("%.1f %c%s",
+		float64(bytes)/float64(div), prefixes[exp], suffix)
 }
 
 func kill(path string, index *fileIndex) error {

cmd/root.go

@@ -14,13 +14,14 @@ import (
 
 const (
 	AllowedCharacters string = `^[A-z0-9.\-_]+$`
-	ReleaseVersion    string = "3.6.1"
+	ReleaseVersion    string = "3.7.0"
 )
 
 var (
 	AdminPrefix    string
 	All            bool
 	Audio          bool
+	BinaryPrefix   bool
 	Bind           string
 	CaseSensitive  bool
 	Code           bool
@@ -111,6 +112,7 @@ func init() {
 	rootCmd.Flags().StringVar(&AdminPrefix, "admin-prefix", "", "string to prepend to administrative paths")
 	rootCmd.Flags().BoolVarP(&All, "all", "a", false, "enable all supported file types")
 	rootCmd.Flags().BoolVar(&Audio, "audio", false, "enable support for audio files")
+	rootCmd.Flags().BoolVar(&BinaryPrefix, "binary-prefix", false, "use IEC binary prefixes instead of SI decimal prefixes")
 	rootCmd.Flags().StringVarP(&Bind, "bind", "b", "0.0.0.0", "address to bind to")
 	rootCmd.Flags().BoolVar(&CaseSensitive, "case-sensitive", false, "use case-sensitive matching for filters")
 	rootCmd.Flags().BoolVar(&Code, "code", false, "enable support for source code files")