a funny gag

crates/treehouse/src/cli/regenerate.rs

@@ -154,6 +154,11 @@ impl Generator {
                     }
                 };
 
+                std::fs::create_dir_all(
+                    target_path
+                        .parent()
+                        .expect("there should be a parent directory to generate files into"),
+                )?;
                 std::fs::write(target_path, templated_html)?;
             }
         }

crates/treehouse/src/html/tree.rs

@@ -37,9 +37,15 @@ pub fn branch_to_html(
         String::new()
     };
 
+    let do_not_persist = if branch.attributes.do_not_persist {
+        " data-th-do-not-persist=\"\""
+    } else {
+        ""
+    };
+
     write!(
         s,
-        "<li is=\"{component}\" class=\"{class}\" id=\"{}\"{linked_branch}>",
+        "<li is=\"{component}\" class=\"{class}\" id=\"{}\"{linked_branch}{do_not_persist}>",
         EscapeAttribute(&branch.html_id)
     )
     .unwrap();

crates/treehouse/src/tree/attributes.rs

@@ -13,6 +13,10 @@ pub struct Attributes {
     /// Controls how the block should be presented.
     #[serde(default)]
     pub content: Content,
+
+    /// Do not persist the branch in localStorage.
+    #[serde(default)]
+    pub do_not_persist: bool,
 }
 
 /// Controls for block content presentation.