global regex so its the same every time

pkg/imageconvert/list.go

@@ -10,6 +10,8 @@ import (
 	"time"
 )
 
+var ImageExtensionRegex = regexp.MustCompile(".*.jpg$|.*.jpeg$|.*.png$|.*.webp$|.*.JPG$|.*.JPEG$|.*.PNG$|.*.WEBP$")
+
 // FileInfo is a copy of fs.FileInfo that
 // allows us to modify the filename
 type FileInfo struct {
@@ -21,7 +23,6 @@ type FileInfo struct {
 // files in the given input
 func ListAllFiles(inputPath string) ([]FileInfo, error) {
 	var allFiles []FileInfo
-	var suffixRegex = regexp.MustCompile(".*.jpg$|.*.jpeg$|.*.png$|.*.webp$")
 
 	// expand ~ paths
 	if strings.Contains(inputPath, "~") {
@@ -51,7 +52,7 @@ func ListAllFiles(inputPath string) ([]FileInfo, error) {
 				return nil, fmt.Errorf("could not list files in dir: %s, err: %w", file, err)
 			}
 			allFiles = append(allFiles, dirFiles...)
-		} else if suffixRegex.MatchString(strings.ToLower(file)) {
+		} else if ImageExtensionRegex.MatchString(strings.ToLower(file)) {
 			allFiles = append(allFiles, FileInfo{Name: file, ModTime: stat.ModTime()})
 		}
 	}
@@ -68,17 +69,19 @@ func ListDirFiles(root string) ([]FileInfo, error) {
 		return nil, fmt.Errorf("error listing all files in dir: %s, error: %s", root, err.Error())
 	}
 
-	var suffixRegex = regexp.MustCompile(".*.jpg$|.*.jpeg$|.*.png$|.*.webp$")
-
 	for _, file := range files {
 		var fullPath = filepath.Join(root, file.Name())
+
 		if file.IsDir() {
+
 			recursiveImages, err := ListDirFiles(fullPath)
 			if err != nil {
 				return nil, fmt.Errorf("error from recursive call to ListFiles, error: %s", err.Error())
 			}
 			allFiles = append(allFiles, recursiveImages...)
-		} else if suffixRegex.MatchString(strings.ToLower(file.Name())) {
+
+		} else if ImageExtensionRegex.MatchString(strings.ToLower(file.Name())) {
+
 			var info, err = file.Info()
 			if err != nil {
 				return nil, fmt.Errorf("could not get FileInfo for file: %s, error: %s", file.Name(), err.Error())