refactor: load and write content as bytes

Allow loading and transforming other things than text files (images)

jweb/content.py

@@ -23,6 +23,8 @@ class Content(Generic[TData]):
         return self.__data
 
     def __str__(self) -> str:
+        if isinstance(self.__data, bytes):
+            return self.__data.decode("utf-8")
         return str(self.__data)
 
 

jweb/context.py

@@ -70,7 +70,7 @@ class Context:
             self.__render(source, self.__output_directory / output, **context)
 
     @pass_context
-    def __load(self, context: JinjaContext, path: str | Path | ContentField) -> Content[str]:
+    def __load(self, context: JinjaContext, path: str | Path | ContentField) -> Content[bytes]:
         if isinstance(path, ContentField):
             path = path.as_path()
 
@@ -82,13 +82,13 @@ class Context:
         else:
             localized_path = self.__content_directory / path
 
-        with localized_path.open("r", encoding="utf-8") as content_file:
+        with localized_path.open("rb") as content_file:
             return Content(localized_path, content_file.read(), current_language)
 
     @pass_context
     def __glob(
         self, context: JinjaContext, pattern: str, include_base_language: bool = False
-    ) -> Iterator[Content[str]]:
+    ) -> Iterator[Content[bytes]]:
         roots: list[Path] = []
         current_language = self.current_language
         if current_language is None:
@@ -105,11 +105,11 @@ class Context:
         for path in paths:
             yield self.__load(context, path)
 
-    def __write(self, content: Content[str]) -> Path:
+    def __write(self, content: Content[bytes]) -> Path:
         relative_path = content.path.relative_to(self.__content_directory)
         output_path = self.__output_directory / relative_path
         output_path.parent.mkdir(parents=True, exist_ok=True)
-        with output_path.open("w") as output_file:
+        with output_path.open("wb") as output_file:
             output_file.write(content.data)
 
         return Path(f"/{relative_path}")