From e56c41a1c2c9ebe9f861ec09212bdc8fee4e2204 Mon Sep 17 00:00:00 2001
From: Michael Bryan <michaelfbryan@gmail.com>
Date: Sun, 21 Jul 2019 02:37:09 +0800
Subject: [PATCH] The HTML renderer now cleans its own build directory

---
 src/renderer/html_handlebars/hbs_renderer.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/renderer/html_handlebars/hbs_renderer.rs b/src/renderer/html_handlebars/hbs_renderer.rs
index 1490f8af..16c884e1 100644
--- a/src/renderer/html_handlebars/hbs_renderer.rs
+++ b/src/renderer/html_handlebars/hbs_renderer.rs
@@ -282,6 +282,9 @@ impl Renderer for HtmlHandlebars {
         let destination = &ctx.destination;
         let book = &ctx.book;
 
+        utils::remove_dir_contents(destination)
+            .chain_err(|| "Unable to remove stale HTML output")?
+
         trace!("render");
         let mut handlebars = Handlebars::new();