From 41750667cd74b66c2bdde00619d290fc293a01d3 Mon Sep 17 00:00:00 2001
From: Glavin Wiechert <glavin.wiechert@gmail.com>
Date: Sun, 11 Feb 2018 20:43:37 -0400
Subject: [PATCH] Allow edit URL to be customized with doc metadata (#443)

---
 docs/api-doc-markdown.md | 12 ++++++++++++
 lib/core/Doc.js          | 10 +++++-----
 2 files changed, 17 insertions(+), 5 deletions(-)

diff --git a/docs/api-doc-markdown.md b/docs/api-doc-markdown.md
index 05e795149f1e..4c2b7fe33b16 100644
--- a/docs/api-doc-markdown.md
+++ b/docs/api-doc-markdown.md
@@ -38,6 +38,18 @@ original_id: doc1
 ---
 ```
 
+`custom_edit_url`: The url for editing this document. If this field is not present, the document's edit url will fallback to `editUrl` from optional fields of `siteConfig.js`. See [siteConfig.js](site-config.md) docs for more information.
+
+For example:
+
+```markdown
+---
+id: doc-markdown
+title: Markdown Features
+custom_edit_url: https://github.com/facebook/Docusaurus/edit/master/docs/api-doc-markdown.md
+---
+```
+
 ### Blog Posts
 
 Blog Posts use the following markdown header fields that are enclosed by a line `---` on either side:
diff --git a/lib/core/Doc.js b/lib/core/Doc.js
index b08d8e69977d..06b76e941854 100644
--- a/lib/core/Doc.js
+++ b/lib/core/Doc.js
@@ -27,11 +27,11 @@ class Doc extends React.Component {
       docSource = docSource.match(new RegExp(/version-.*\/(.*\.md)/, 'i'))[1];
     }
 
-    let editLink = this.props.config.editUrl && (
-      <a
-        className="edit-page-link button"
-        href={this.props.config.editUrl + docSource}
-        target="_blank">
+    const editUrl =
+      this.props.metadata.custom_edit_url ||
+      (this.props.config.editUrl && this.props.config.editUrl + docSource);
+    let editLink = editUrl && (
+      <a className="edit-page-link button" href={editUrl} target="_blank">
         {editThisDoc}
       </a>
     );