if logdir is None:
return files
// Make sure keeping consistent with ParseURI in core/lib/io/path.cc
uri_pattern = re.compile("[a-zA-Z][0-9a-zA-Z.]://.*")
for specification in logdir.split(","):
// Check if the spec contains group. A spec start with xyz:// is regarded as
// URI path spec instead of group spec. If the spec looks like /foo:bar/baz,
// then we assume it"s a path with a colon.
if uri_pattern.match(specification) is None and \
":" in specification and specification[0] != "/":
// We split at most once so run_name:/path:with/a/colon will work.
run_name, _, path = specification.partition(":")