New feature: unrouteable content files.

samples/hidden-content/_partially-hidden-directory/non-hidden-file.html

@@ -0,0 +1 @@
+i am not hidden, but my parent directory is

samples/hidden-content/_partially-hidden-file.html

@@ -0,0 +1 @@
+i am prefixed with _

samples/hidden-content/includes-partially-hidden-files.html.hbs

@@ -0,0 +1,3 @@
+1: {{get [/]._partially-hidden-file}}
+2: {{get [/].[_partially-hidden-directory/].non-hidden-file}}
+3: {{get [/].[non-hidden-directory/]._partially-hidden-file}}

samples/hidden-content/non-hidden-directory/_partially-hidden-file.html

@@ -0,0 +1 @@
+i am prefixed with _, but my parent directory is not prefixed with _

samples/realistic-advanced/error-handler.html.hbs

@@ -1,9 +1,9 @@
-{{#>layout.html.hbs page-title="Error"}}
+{{#>_layout.html.hbs page-title="Error"}}
   <header>
     <h1>Error</h1>
   </header>
 
-  <nav>{{get "navigation"}}</nav>
+  <nav>{{get "/_navigation"}}</nav>
 
   <main>
     <p>
@@ -42,4 +42,4 @@
       {{#if (eq error-code 505)}}HTTP Version Not Supported{{/if}}
     </p>
   </main>
-{{/layout.html.hbs}}
+{{/_layout.html.hbs}}

samples/realistic-advanced/gallery.html.hbs

@@ -1,4 +1,4 @@
-{{#>layout.html.hbs page-title="Image gallery"}}
+{{#>_layout.html.hbs page-title="Image gallery"}}
   <style>
     #gallery img {
       height: 50vh;
@@ -13,7 +13,7 @@
     <h1>Image gallery</h1>
   </header>
 
-  <nav>{{get "navigation"}}</nav>
+  <nav>{{get "/_navigation"}}</nav>
 
   <figure id="gallery">
     <img src="gallery/1" />
@@ -35,4 +35,4 @@
       })
     }
   </script>
-{{/layout.html.hbs}}
+{{/_layout.html.hbs}}

samples/realistic-advanced/home.html.hbs

@@ -1,9 +1,9 @@
-{{#>layout.html.hbs}}
+{{#>_layout.html.hbs}}
   <header>
     <h1>Welcome to my fancy website!</h1>
   </header>
 
-  <nav>{{get "/navigation"}}</nav>
+  <nav>{{get "/_navigation"}}</nav>
 
   <article>
     <figure><img src="/dance" /></figure>
@@ -13,4 +13,4 @@
   <footer>
     The current <a href="/now">time</a> is {{get "/now"}}.
   </footer>
-{{/layout.html.hbs}}
+{{/_layout.html.hbs}}

samples/realistic-advanced/lottery.html.hbs

@@ -10,7 +10,7 @@
   </ul>
 {{/inline}}
 
-{{#>layout.html.hbs page-title="Play The Lottery"}}
+{{#>_layout.html.hbs page-title="Play The Lottery"}}
   <style>
     @keyframes face {
       from {
@@ -41,10 +41,10 @@
     <h1>Play the lottery</h1>
   </header>
 
-  <nav>{{get "/navigation"}}</nav>
+  <nav>{{get "/_navigation"}}</nav>
 
   <main>
-    {{#if (get "/play-lottery")}}
+    {{#if (get "/_play-lottery")}}
       {{>smiles}}
       <h2>You won!</h2>
       {{>smiles}}
@@ -56,4 +56,4 @@
   </main>
 
   <footer>Reload this page to play again.</footer>
-{{/layout.html.hbs}}
+{{/_layout.html.hbs}}

src/content/content_engine.rs

@@ -7,7 +7,6 @@ use super::*;
 use handlebars::{self, Handlebars};
 use mime_guess::MimeGuess;
 use std::collections::hash_map::Entry;
-use std::collections::HashMap;
 use std::io;
 use std::path::Path;
 use std::sync::{Arc, RwLock};
@@ -71,6 +70,8 @@ where
         media_type: MediaType,
     ) -> Result<UnregisteredTemplate, TemplateParseError>;
 
+    fn get_internal(&self, route: &Route) -> Option<&ContentRepresentations>;
+
     fn get(&self, route: &Route) -> Option<&ContentRepresentations>;
 
     fn handlebars_registry(&self) -> &Handlebars;
@@ -370,9 +371,7 @@ where
         F: FnOnce() -> RegisteredContent,
     {
         content_index.try_add(route.clone())?;
-        let representations = content_registry
-            .entry(route.clone())
-            .or_insert_with(HashMap::new);
+        let representations = content_registry.entry_or_insert_default(route.clone());
 
         match representations.entry(media_type) {
             Entry::Occupied(entry) => {
@@ -417,6 +416,10 @@ where
         self.content_registry.get(route)
     }
 
+    fn get_internal(&self, route: &Route) -> Option<&ContentRepresentations> {
+        self.content_registry.get_internal(route)
+    }
+
     fn handlebars_registry(&self) -> &Handlebars {
         &self.handlebars_registry
     }

src/content/content_registry.rs

@@ -2,7 +2,31 @@ use super::content_item::*;
 use super::*;
 use std::collections::HashMap;
 
-pub type ContentRegistry = HashMap<Route, ContentRepresentations>;
+pub struct ContentRegistry(HashMap<Route, ContentRepresentations>);
+impl ContentRegistry {
+    pub fn new() -> Self {
+        ContentRegistry(HashMap::new())
+    }
+
+    /// Routes that begin with underscore are ignored for external requests
+    /// (they always 404).
+    pub fn get(&self, route: &Route) -> Option<&ContentRepresentations> {
+        if route.as_ref().contains("/_") {
+            None
+        } else {
+            self.get_internal(route)
+        }
+    }
+
+    pub fn get_internal(&self, route: &Route) -> Option<&ContentRepresentations> {
+        self.0.get(route)
+    }
+
+    pub fn entry_or_insert_default(&mut self, key: Route) -> &mut ContentRepresentations {
+        self.0.entry(key).or_insert_with(HashMap::default)
+    }
+}
+
 pub type ContentRepresentations = HashMap<MediaType, RegisteredContent>;
 
 /// A renderable item from the content directory.

src/content/handlebars_helpers/get.rs

@@ -69,7 +69,7 @@ where
                 ))
             })?;
 
-        let content_item = content_engine.get(&route).ok_or_else(|| {
+        let content_item = content_engine.get_internal(&route).ok_or_else(|| {
             handlebars::RenderError::new(format!(
                 "No content found at route passed to `get` helper (\"{}\").",
                 route,

src/content/test_lib.rs

@@ -43,6 +43,9 @@ impl<'a> ContentEngine<()> for MockContentEngine<'a> {
     fn get(&self, _: &Route) -> Option<&ContentRepresentations> {
         None
     }
+    fn get_internal(&self, _: &Route) -> Option<&ContentRepresentations> {
+        None
+    }
     fn handlebars_registry(&self) -> &Handlebars {
         &self.0
     }

tests/snapshots/integration_tests__hidden-content.snap

@@ -3,4 +3,7 @@ source: tests/integration_tests.rs
 expression: contents
 input_file: samples/hidden-content
 ---
-{}
+_partially-hidden-directory/non-hidden-file.html: "Content not found at route '/_partially-hidden-directory/non-hidden-file'.\n"
+_partially-hidden-file.html: "Content not found at route '/_partially-hidden-file'.\n"
+includes-partially-hidden-files.html.hbs: "1: i am prefixed with _\n\n2: i am not hidden, but my parent directory is\n\n3: i am prefixed with _, but my parent directory is not prefixed with _\n\n"
+non-hidden-directory/_partially-hidden-file.html: "Content not found at route '/non-hidden-directory/_partially-hidden-file'.\n"