fix(turbopack): asset filename extension

Author: xusd320

turbopack/crates/turbo-tasks-fs/src/lib.rs

@@ -1571,7 +1571,7 @@ impl FileSystemPath {
     /// 1. The parent directory, if any;
     /// 2. The file stem;
     /// 3. The extension, if any.
-    fn split_file_stem_extension(&self) -> (Option<&str>, &str, Option<&str>) {
+    pub fn split_file_stem_extension(&self) -> (Option<&str>, &str, Option<&str>) {
         let (path_before_extension, extension) = self.split_extension();
 
         if let Some((parent, file_stem)) = path_before_extension.rsplit_once('/') {

turbopack/crates/turbopack-browser/src/chunking_context.rs

@@ -771,18 +771,19 @@ impl ChunkingContext for BrowserChunkingContext {
             Some(filename_template) => {
                 let mut filename = filename_template.to_string();
 
+                let (_, name, ext) = source_path.split_file_stem_extension();
+
                 if match_name_placeholder(&filename) {
-                    filename = replace_name_placeholder(&filename, basename);
+                    filename = replace_name_placeholder(&filename, name);
                 }
 
                 if match_content_hash_placeholder(&filename) {
                     filename = replace_content_hash_placeholder(&filename, &content_hash);
                 };
 
-                if let Some(ext) = source_path.extension_ref() {
-                    if let Some((stem, _)) = filename.rsplit_once(".") {
-                        filename = stem.to_string();
-                    }
+                if let Some(ext) = ext
+                    && !filename.ends_with(ext)
+                {
                     filename = format!("{filename}.{ext}");
                 }