From b9ca108fcae2b738ca3f0c88c84ae5dc5a6f843f Mon Sep 17 00:00:00 2001
From: Tim Ryan <id@timryan.org>
Date: Mon, 14 May 2018 06:22:21 -0400
Subject: [PATCH] Support reproducible builds by forcing window.search to use
 stable key ordering. (#692)
See <https://github.com/rust-lang-nursery/mdBook/pull/692>
---
 src/vendor/mdbook/src/renderer/html_handlebars/search.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/vendor/mdbook/src/renderer/html_handlebars/search.rs b/src/vendor/mdbook/src/renderer/html_handlebars/search.rs
index d49772f8b..1ee66a511 100644
--- a/src/vendor/mdbook/src/renderer/html_handlebars/search.rs
+++ b/src/vendor/mdbook/src/renderer/html_handlebars/search.rs
@@ -205,6 +205,10 @@ fn write_to_js(index: Index, search_config: &Search) -> Result<String> {
         searchoptions,
         index,
     };
+
+    // By converting to serde_json::Value as an intermediary, we use a
+    // BTreeMap internally and can force a stable ordering of map keys.
+    let json_contents = serde_json::to_value(&json_contents)?;
     let json_contents = serde_json::to_string(&json_contents)?;
 
     Ok(format!("window.search = {};", json_contents))
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