Generate render link based on path to file.

src/intermediate/regular_link.rs

@@ -143,7 +143,29 @@ impl LinkTarget {
                     .unwrap_or_default(),
                 target_id
             ))),
-            LinkTarget::Image { src, .. } => Ok(Some(src.clone())),
+            LinkTarget::Image { src, .. } => {
+                let path_to_file = render_context
+                    .dependency_manager
+                    .lock()
+                    .unwrap()
+                    .get_current_folder()?
+                    .join(src)
+                    .canonicalize()?;
+                let input_root_directory = render_context.config.get_root_directory();
+                let relative_path_to_file = path_to_file.strip_prefix(input_root_directory)?;
+                dbg!(input_root_directory);
+                dbg!(&path_to_file);
+                dbg!(relative_path_to_file);
+                let web_path = get_web_path(
+                    render_context.config,
+                    render_context.output_root_directory,
+                    render_context.output_file,
+                    relative_path_to_file,
+                )?;
+                dbg!(&web_path);
+                // TODO: Record interest in copying the file to output.
+                Ok(Some(web_path))
+            }
         }
     }