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()
tokarchuk/v1.17
mappu 8 years ago committed by Lunny Xiao
parent d98a86d2a2
commit fd76f090a2
  1. 7
      modules/markup/markup.go
  2. 1
      modules/markup/markup_test.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."
}

@ -25,6 +25,7 @@ func TestMisc_IsReadmeFile(t *testing.T) {
"abcdefg",
"abcdefghijklmnopqrstuvwxyz",
"test.md.test",
"readmf",
}
for _, testCase := range trueTestCases {

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