From fd76f090a29b229b9e8e089e225f7ca012809090 Mon Sep 17 00:00:00 2001 From: mappu Date: Wed, 10 May 2017 02:20:22 +1200 Subject: [PATCH] markup: microoptimise for many short filenames in directory (#1534) * markup: microoptimise for many short filenames in directory Move strings.ToLower() after the early-return length check. This is a safe operation in all cases and should slightly improve directory listing performance when a directory contains many thousands of files with short filenames. * markup: expand test cases for IsReadmeFile() --- modules/markup/markup.go | 7 +++++-- modules/markup/markup_test.go | 1 + 2 files changed, 6 insertions(+), 2 deletions(-) diff --git a/modules/markup/markup.go b/modules/markup/markup.go index dc27997e8..e1fae3a5a 100644 --- a/modules/markup/markup.go +++ b/modules/markup/markup.go @@ -71,11 +71,14 @@ func ReadmeFileType(name string) (string, bool) { // IsReadmeFile reports whether name looks like a README file // based on its name. func IsReadmeFile(name string) bool { - name = strings.ToLower(name) if len(name) < 6 { return false - } else if len(name) == 6 { + } + + name = strings.ToLower(name) + if len(name) == 6 { return name == "readme" } return name[:7] == "readme." } + diff --git a/modules/markup/markup_test.go b/modules/markup/markup_test.go index 92caa8ff9..0dd2be356 100644 --- a/modules/markup/markup_test.go +++ b/modules/markup/markup_test.go @@ -25,6 +25,7 @@ func TestMisc_IsReadmeFile(t *testing.T) { "abcdefg", "abcdefghijklmnopqrstuvwxyz", "test.md.test", + "readmf", } for _, testCase := range trueTestCases {