From 32dd4c4cfc6488ca57645297c547abbb3d774868 Mon Sep 17 00:00:00 2001
From: Luke Murphy <lukewm@riseup.net>
Date: Wed, 23 Aug 2017 05:40:02 +0200
Subject: [PATCH] Add mkdocs search hack.

Should close https://github.com/commercialhaskell/stack/issues/3376.

Copy-Pasta from https://github.com/nodemcu/nodemcu-firmware/commit/7dd89dd15ef993c9740ba4d4361e6be8edd1284b.
---
 ChangeLog.md               |  4 ++++
 etc/mkdocsjs/searchhack.js | 29 +++++++++++++++++++++++++++++
 mkdocs.yml                 |  3 +++
 3 files changed, 36 insertions(+)
 create mode 100644 etc/mkdocsjs/searchhack.js

diff --git a/ChangeLog.md b/ChangeLog.md
index 65b19a7c4d..1114a3b955 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -122,6 +122,10 @@ Bug fixes:
   trust the etag and not re-download.  Fixed in this version.
 * Invoking `stack --docker` in parallel now correctly locks the sqlite database.
   See [#3400](https://github.com/commercialhaskell/stack/issues/3400).
+* docs.haskellstack.org RTD documentation search is replaced by the mkdocs
+  search. Please see
+  [#3376](https://github.com/commercialhaskell/stack/issues/3376).
+
 
 ## 1.5.1
 
diff --git a/etc/mkdocsjs/searchhack.js b/etc/mkdocsjs/searchhack.js
new file mode 100644
index 0000000000..03608c2163
--- /dev/null
+++ b/etc/mkdocsjs/searchhack.js
@@ -0,0 +1,29 @@
+// Please see https://github.com/commercialhaskell/stack/issues/3376
+
+(function () {
+  $(document).ready(function () {
+    fixSearch();
+  });
+
+  function fixSearch() {
+    var target = document.getElementById('rtd-search-form');
+    var config = {attributes: true, childList: true};
+
+    var observer = new MutationObserver(function(mutations) {
+      observer.disconnect();
+      var form = $('#rtd-search-form');
+      form.empty();
+      form.attr('action', 'https://' + window.location.hostname + '/en/' + determineSelectedBranch() + '/search.html');
+      $('<input>').attr({
+        type: "text",
+        name: "q",
+        placeholder: "Search docs"
+      }).appendTo(form);
+    });
+
+    if (window.location.origin.indexOf('readthedocs') > -1) {
+      observer.observe(target, config);
+    }
+  }
+
+})();
diff --git a/mkdocs.yml b/mkdocs.yml
index 5294458227..d615e4450f 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -38,3 +38,6 @@ pages:
 markdown_extensions:
 - toc:
     permalink: true
+
+extra_javascript:
+- etc/mkdocsjs/searchhack.js