From 13dcc5d4424d2f5526940aebe07ec21886d45d65 Mon Sep 17 00:00:00 2001
From: Guy Sartorelli <36352093+GuySartorelli@users.noreply.github.com>
Date: Mon, 19 Feb 2024 09:26:23 +1300
Subject: [PATCH] FEAT Add linkfield docs (#286)

---
 gatsby-node.js           |  2 +-
 sources-docs.js          |  9 +++++++++
 src/utils/rewriteLink.ts | 28 +++++++++++++++++++++++++++-
 3 files changed, 37 insertions(+), 2 deletions(-)

diff --git a/gatsby-node.js b/gatsby-node.js
index cfdb889..7d6de76 100644
--- a/gatsby-node.js
+++ b/gatsby-node.js
@@ -48,7 +48,7 @@ exports.onCreateNode = async ({ node, getNode, getNodesByType, actions, createNo
     }
     return;
   }   
-  const basePath = category === 'user' ? `docs/en/userguide` : `en`;
+  const basePath = category === 'user' ? 'docs/en/userguide' : (thirdparty ? 'docs/en' : 'en');
   const filePath = createFilePath({
     node,
     getNode,
diff --git a/sources-docs.js b/sources-docs.js
index 8a9fc68..9b5d305 100644
--- a/sources-docs.js
+++ b/sources-docs.js
@@ -8,6 +8,15 @@ module.exports = [
       patterns: 'en/**'
     }
   },
+  {
+    resolve: 'gatsby-source-git',
+    options: {
+      name: 'docs--5--optional_features/linkfield',
+      remote: 'https://github.com/silverstripe/silverstripe-linkfield.git',
+      branch: '4.0',
+      patterns: 'docs/en/**'
+    }
+  },
   {
     resolve: 'gatsby-source-git',
     options: {
diff --git a/src/utils/rewriteLink.ts b/src/utils/rewriteLink.ts
index d1fe88c..10090e5 100644
--- a/src/utils/rewriteLink.ts
+++ b/src/utils/rewriteLink.ts
@@ -96,7 +96,33 @@ const rewriteLink = (
         )
     }
 
-    // absolute links
+    // absolute links to docs (unversioned)
+    if (href.match(/^https?:\/\/docs.silverstripe.org\/en\/[a-zA-Z]/)) {
+        return createElement(
+            Link,
+            {
+                to: path.join('/', 'en', version, href.replace(/^https?:\/\/docs.silverstripe.org\/en/, '')),
+                className: 'gatsby-link'
+            },
+            domToReact(children, parseOptions)
+        );
+    }
+
+    // absolute links to docs (versioned)
+    const hrefMatch = href.match(/^https?:\/\/docs.silverstripe.org\/en\/([0-9]+)/);
+    if (hrefMatch) {
+        const hrefVersion = hrefMatch[1];
+        return createElement(
+            Link,
+            {
+                to: path.join('/', 'en', hrefVersion, href.replace(/^https?:\/\/docs.silverstripe.org\/en\/([0-9]+)/, '')),
+                className: 'gatsby-link'
+            },
+            domToReact(children, parseOptions)
+        );
+    }
+
+    // absolute links to anywhere else
     if (href.match(/^https?/)) {
         return createElement(
             'a',