Merge pull request #238 from childe/fix-http-pattern-paths

return filepath of grok patterns if it's http(s)

filter/grok.go

@@ -67,6 +67,10 @@ func (grok *Grok) loadPatterns() {
 }
 
 func getFiles(filepath string) ([]string, error) {
+	if strings.HasPrefix(filepath, "http://") || strings.HasPrefix(filepath, "https://") {
+		return []string{filepath}, nil
+	}
+
 	fi, err := os.Stat(filepath)
 	if err != nil {
 		return nil, err

filter/grok_test.go

@@ -2,6 +2,14 @@ package filter
 
 import "testing"
 
+func TestGetPath(t *testing.T) {
+	filepath := "https://raw.githubusercontent.com/vjeantet/grok/master/patterns/grok-patterns"
+	_, err := getFiles(filepath)
+	if err != nil {
+		t.Errorf("getFiles error:%s", err)
+	}
+}
+
 func TestGrokFilter(t *testing.T) {
 	config := make(map[interface{}]interface{})
 	match := make([]interface{}, 2)
@@ -30,6 +38,7 @@ func TestGrokFilter(t *testing.T) {
 		}
 	}
 }
+
 func TestTarget(t *testing.T) {
 	config := make(map[interface{}]interface{})
 	match := make([]interface{}, 2)