Allow uppercase usernames.

main.go

@@ -117,7 +117,7 @@ func (repo *Repo) GopkgVersionRoot(version Version) string {
 }
 
 var patternOld = regexp.MustCompile(`^/(?:([a-z0-9][-a-z0-9]+)/)?((?:v0|v[1-9][0-9]*)(?:\.0|\.[1-9][0-9]*){0,2})/([a-zA-Z][-a-zA-Z0-9]*)(?:\.git)?((?:/[a-zA-Z][-a-zA-Z0-9]*)*)$`)
-var patternNew = regexp.MustCompile(`^/(?:([a-z0-9][-a-z0-9]+)/)?([a-zA-Z][-a-zA-Z0-9]*)\.((?:v0|v[1-9][0-9]*)(?:\.0|\.[1-9][0-9]*){0,2})(?:\.git)?((?:/[a-zA-Z][-a-zA-Z0-9]*)*)$`)
+var patternNew = regexp.MustCompile(`^/(?:([a-zA-Z0-9][-a-zA-Z0-9]+)/)?([a-zA-Z][-a-zA-Z0-9]*)\.((?:v0|v[1-9][0-9]*)(?:\.0|\.[1-9][0-9]*){0,2})(?:\.git)?((?:/[a-zA-Z][-a-zA-Z0-9]*)*)$`)
 
 func handler(resp http.ResponseWriter, req *http.Request) {
 	if req.URL.Path == "/health-check" {