Make path relative

sakex · sakex · commit b9c8514702b9 · 2023-11-07T08:56:07.000Z
diff --git a/README.md b/README.md
@@ -10,8 +10,8 @@ infrastructure for [mdbook](https://github.com/rust-lang/mdBook/):
 
 - [mdbook-i18n-helpers](i18n-helpers/README.md): Gettext translation support for
   [mdbook](https://github.com/rust-lang/mdBook/)
-- [mdbook-tera-backend](./mdbook-tera-backend/README.md): Tera templates extension
-  for [mdbook](https://github.com/rust-lang/mdBook/)'s HTML renderer.
+- [mdbook-tera-backend](./mdbook-tera-backend/README.md): Tera templates
+  extension for [mdbook](https://github.com/rust-lang/mdBook/)'s HTML renderer.
 
 ## Showcases
 
diff --git a/mdbook-tera-backend/README.md b/mdbook-tera-backend/README.md
@@ -5,9 +5,9 @@
 [![GitHub contributors](https://img.shields.io/github/contributors/google/mdbook-i18n-helpers?style=flat-square)](https://github.com/google/mdbook-i18n-helpers/graphs/contributors)
 [![GitHub stars](https://img.shields.io/github/stars/google/mdbook-i18n-helpers?style=flat-square)](https://github.com/google/mdbook-i18n-helpers/stargazers)
 
-This `mdbook` backend makes it possible to use [tera](https://github.com/Keats/tera)
-templates and expand the capabilities of your books. It works on top of the default HTML
-backend.
+This `mdbook` backend makes it possible to use
+[tera](https://github.com/Keats/tera) templates and expand the capabilities of
+your books. It works on top of the default HTML backend.
 
 ## Installation
 
diff --git a/mdbook-tera-backend/src/tera_renderer/renderer.rs b/mdbook-tera-backend/src/tera_renderer/renderer.rs
@@ -62,8 +62,9 @@ impl Renderer {
     /// `path`: The path to the file that will be added as extra context to the renderer.
     fn create_context(&mut self, path: &Path) -> Result<tera::Context> {
         let mut context = tera::Context::new();
-        context.insert("path", path);
-        context.insert("ctx", &serde_json::to_value(&self.ctx)?);
+        let book_dir = self.ctx.destination.parent().unwrap();
+        let relative_path = path.strip_prefix(book_dir).unwrap();
+        context.insert("path", &relative_path);
         context.insert("book_dir", &self.ctx.destination.parent().unwrap());
 
         Ok(context)
@@ -126,7 +127,8 @@ mod test {
 
     const HTML_FILE: &str = r#"
         <!DOCTYPE html>
-            {%include "test_template.html" %}
+            {% include "test_template.html" %}
+            PATH: {{ path }}
         </html>
     "#;
 
@@ -135,6 +137,7 @@ mod test {
     const RENDERED_HTML_FILE: &str = r#"
         <!DOCTYPE html>
             RENDERED
+            PATH: html/test.html
         </html>
     "#;
 
