func (m *mimeDetector) mimeTypeForPath(p gopath.GoPath) string {
p = p.EvalSymlinks()
if p.IsDirectory() || p.HasErr() {
return store.FallbackMimeType
}
var ext = p.Ext()
if mimeType := mime.TypeByExtension(ext); mimeType != "" {
return mimeType
}
var first512Bytes = m.first512BytesForPath(p)
m.errAndClear() // clear error flag, as DetectContentType always returns something
return http.DetectContentType(first512Bytes)
}