From d62ae9455e934d786e92e97513d362ff83fce12e Mon Sep 17 00:00:00 2001
From: Fela Maslen <felamaslen@gmail.com>
Date: Fri, 5 Jul 2024 11:17:01 +0100
Subject: [PATCH 1/2] fix: deduplicate fragments when generating persisted
 document hash

---
 packages/graphqlsp/src/persisted.ts | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/packages/graphqlsp/src/persisted.ts b/packages/graphqlsp/src/persisted.ts
index c9ba706..e262918 100644
--- a/packages/graphqlsp/src/persisted.ts
+++ b/packages/graphqlsp/src/persisted.ts
@@ -183,12 +183,15 @@ export const generateHashForDocument = (
       foundFilename,
       info
     ).combinedText;
-    fragments.forEach(fragmentDefinition => {
-      text = `${text}\n\n${print(fragmentDefinition)}`;
+    const deduplicatedFragments = fragments
+      .map(fragment => print(fragment))
+      .filter((fragment, index, array) => array.indexOf(fragment) === index);
+
+    deduplicatedFragments.forEach(fragmentDefinition => {
+      text = `${text}\n\n${fragmentDefinition}`;
     });
-    return createHash('sha256')
-      .update(print(parse(text)))
-      .digest('hex');
+    const fullText = print(parse(text));
+    return createHash('sha256').update(fullText).digest('hex');
   } else {
     const externalSource = getSource(info, foundFilename)!;
     const { fragments } = findAllCallExpressions(externalSource, info);

From ef3f3c101757c4ce12b010d746bae4632bdb4e14 Mon Sep 17 00:00:00 2001
From: Fela Maslen <felamaslen@gmail.com>
Date: Fri, 5 Jul 2024 11:29:55 +0100
Subject: [PATCH 2/2] chore: changeset

---
 .changeset/stale-plums-prove.md | 5 +++++
 1 file changed, 5 insertions(+)
 create mode 100644 .changeset/stale-plums-prove.md

diff --git a/.changeset/stale-plums-prove.md b/.changeset/stale-plums-prove.md
new file mode 100644
index 0000000..c4a94f1
--- /dev/null
+++ b/.changeset/stale-plums-prove.md
@@ -0,0 +1,5 @@
+---
+'@0no-co/graphqlsp': patch
+---
+
+Fixed duplicate fragments in persisted document hash generator