Expand CGI path globs once on startup, not for each request.

config.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"errors"
+	"path/filepath"
 	"github.com/BurntSushi/toml"
 )
 
@@ -79,5 +80,16 @@ func getConfig(filename string) (Config, error) {
 		return config, errors.New("Invalid DirectorySort value.")
 	}
 
+	// Expand CGI paths
+	var cgiPaths []string
+	for _, cgiPath := range config.CGIPaths {
+		expandedPaths, err := filepath.Glob(cgiPath)
+		if err != nil {
+			return config, errors.New("Error expanding CGI path glob " + cgiPath + ": " + err.Error())
+		}
+		cgiPaths = append(cgiPaths, expandedPaths...)
+	}
+	config.CGIPaths = cgiPaths
+
 	return config, nil
 }

handler.go

@@ -100,16 +100,7 @@ func handleGeminiRequest(conn net.Conn, config Config, accessLogEntries chan Log
 	}
 
 	// Check whether this URL is in a configured CGI path
-	var cgiPaths []string
 	for _, cgiPath := range config.CGIPaths {
-		expandedPaths, err := filepath.Glob(cgiPath)
-		if err != nil {
-			errorLogEntries <- "Error expanding CGI path glob " + cgiPath + ": " + err.Error()
-			continue
-		}
-		cgiPaths = append(cgiPaths, expandedPaths...)
-	}
-	for _, cgiPath := range cgiPaths {
 		if strings.HasPrefix(path, cgiPath) {
 			handleCGI(config, path, cgiPath, URL, &log, errorLogEntries, conn)
 			if log.Status != 0 {