add --not-match-d option

main.go

@@ -7,6 +7,7 @@ import (
 	"io/ioutil"
 	"os"
 	"path/filepath"
+	"regexp"
 	"sort"
 	"strings"
 
@@ -55,6 +56,12 @@ func getAllFiles(paths []string, languages map[string]*Language) (filenum, maxPa
 			}
 
 			p := filepath.Join(root, rel)
+
+			// check not-match directory
+			if reNotMatchDir != nil && reNotMatchDir.MatchString(p) {
+				return nil
+			}
+
 			if strings.HasPrefix(root, ".") || strings.HasPrefix(root, "./") {
 				p = "./" + p
 			}
@@ -108,6 +115,10 @@ func main() {
 		}
 	}
 
+	if opts.NotMatchDir != "" {
+		reNotMatchDir = regexp.MustCompile(opts.NotMatchDir)
+	}
+
 	// define languages
 	action_script := NewLanguage("ActionScript", "//", "/*", "*/")
 	asm := NewLanguage("Assembly", "", "", "")

option.go

@@ -1,10 +1,13 @@
 package main
 
+import "regexp"
+
 type Options struct {
-	Byfile     bool   `long:"by-file" description:"report results for every source file encountered."`
-	SortTag    string `long:"sort" default:"code" description:"sort based on a certain column"`
-	OutputType string `long:"output-type" default:"default" description:"output type [values: default,cloc-xml,sloccount]"`
-	ExcludeExt string `long:"exclude-ext" description:"exclude file name extensions (separated commas)"`
+	Byfile      bool   `long:"by-file" description:"report results for every source file encountered."`
+	SortTag     string `long:"sort" default:"code" description:"sort based on a certain column"`
+	OutputType  string `long:"output-type" default:"default" description:"output type [values: default,cloc-xml,sloccount]"`
+	ExcludeExt  string `long:"exclude-ext" description:"exclude file name extensions (separated commas)"`
+	NotMatchDir string `long:"not-match-d" description:"exclude dir name (regex)"`
 }
 
 const OutputTypeDefault string = "default"
@@ -13,3 +16,4 @@ const OutputTypeSloccount string = "sloccount"
 
 var opts Options
 var ExcludeExts map[string]struct{}
+var reNotMatchDir *regexp.Regexp