consider symlinks to directories when pushing to scan stack

https://github.com/karrick/godirwalk/pull/45
https://github.com/sentriz/gonic/issues/27

go.mod

@@ -14,7 +14,7 @@ require (
 	github.com/imdario/mergo v0.3.7 // indirect
 	github.com/jinzhu/gorm v1.9.9
 	github.com/josephburnett/jd v0.0.0-20190531151850-1f9071c800e7
-	github.com/karrick/godirwalk v1.10.12
+	github.com/karrick/godirwalk v1.15.2
 	github.com/kr/pretty v0.1.0 // indirect
 	github.com/nicksellen/audiotags v0.0.0-20160226222119-94015fa599bd
 	github.com/oxtoacart/bpool v0.0.0-20190530202638-03653db5a59c

go.sum

@@ -85,8 +85,8 @@ github.com/josephburnett/jd v0.0.0-20190531151850-1f9071c800e7 h1:/sW5BavO4uIUSq
 github.com/josephburnett/jd v0.0.0-20190531151850-1f9071c800e7/go.mod h1:aeV+6oc13ogwzcRNHBe4vbyLmoQxMfEDoqyqCU9oE30=
 github.com/jstemmer/go-junit-report v0.0.0-20190106144839-af01ea7f8024/go.mod h1:6v2b51hI/fHJwM22ozAgKL4VKDeJcHhJFhtBdhmNjmU=
 github.com/julienschmidt/httprouter v1.2.0/go.mod h1:SYymIcj16QtmaHHD7aYtjjsJG7VTCxuUUipMqKk8s4w=
-github.com/karrick/godirwalk v1.10.12 h1:BqUm+LuJcXjGv1d2mj3gBiQyrQ57a0rYoAmhvJQ7RDU=
-github.com/karrick/godirwalk v1.10.12/go.mod h1:RoGL9dQei4vP9ilrpETWE8CLOZ1kiN0LhBygSwrAsHA=
+github.com/karrick/godirwalk v1.15.2 h1:9EyFg+JbwMCTmGSfT919rfaGgWvY3fZQ3rO9Wu83pk8=
+github.com/karrick/godirwalk v1.15.2/go.mod h1:j4mkqPuvaLI8mp1DroR3P6ad7cyYd4c1qeJ3RV7ULlk=
 github.com/kisielk/gotool v1.0.0 h1:AV2c/EiW3KqPNT9ZKl07ehoAGi4C5/01Cfbblndcapg=
 github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
 github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=

scanner/scanner.go

@@ -200,7 +200,11 @@ func (s *Scanner) callbackItem(fullPath string, info *godirwalk.Dirent) error {
 		filename:  filename,
 		stat:      stat,
 	}
-	if info.IsDir() {
+	isDir, err := info.IsDirOrSymlinkToDir()
+	if err != nil {
+		return errors.Wrap(err, "stating link to dir")
+	}
+	if isDir {
 		return s.handleFolder(it)
 	}
 	lowerFilename := strings.ToLower(filename)