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()
This commit is contained in:
mappu 2017-05-10 02:20:22 +12:00 committed by Lunny Xiao
parent d98a86d2a2
commit fd76f090a2
2 changed files with 6 additions and 2 deletions

View file

@ -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."
}

View file

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