Add support for custom template path.

src/lib.rs

@@ -289,14 +289,18 @@ fn render_markdown (content: &tera::Value, args: &HashMap<String, tera::Value>)
 
 impl PageRenderer {
     pub fn new() -> PageRenderer {
-        let mut tera = tera::Tera::new("templates/**/*.html").unwrap();
+        Self::with_template_path(DEFAULT_TEMPLATES_PATH)
+    }
+
+    pub fn with_template_path(template_path: &str) -> PageRenderer {
+        let mut tera = tera::Tera::new(&format!("{template_path}/**/*.html")).unwrap();
         tera.register_filter("markdown", render_markdown);
         PageRenderer {
-            template_root: DEFAULT_TEMPLATES_PATH.into(),
+            template_root: template_path.into(),
             tera
         }
     }
-
+    
     pub fn render_page(&self, historian: &Historian, page: &Page, options: &Table) -> String {
         self.render_page_template("page.html", &historian, &page, &options)
     }

src/main.rs

@@ -181,14 +181,24 @@ struct Args {
 
     /// Resolve all wiki links in the given page, output the modified text
     #[arg(long)]
-    resolve_links: Option<String>
+    resolve_links: Option<String>,
+
+    /// Path to templates
+    #[arg(long)]
+    template_path: Option<String>
 }
 
 #[rocket::main]
 async fn main() {
     let args = Args::parse();
     let historian = Historian::new(args.wiki_path);
-    let renderer = PageRenderer::new();
+
+    let renderer = if let Some(template_path) = args.template_path {
+        PageRenderer::with_template_path(&template_path)
+    } else {
+        PageRenderer::new()        
+    };
+
     let linker = Linker::new(&historian);
 
     if let Some(resolve_link) = args.resolve_link {