From a5fb77a421ec8dde091e2e41fefd38495c2b222a Mon Sep 17 00:00:00 2001
From: Arda TANRIKULU <ardatanrikulu@gmail.com>
Date: Thu, 12 Aug 2021 20:56:44 +0300
Subject: [PATCH] fix(merge): ignore comments while merging directives #3031

---
 .changeset/plenty-jars-exist.md                   |  5 +++++
 packages/merge/src/typedefs-mergers/directives.ts | 10 ++++++++--
 2 files changed, 13 insertions(+), 2 deletions(-)
 create mode 100644 .changeset/plenty-jars-exist.md

diff --git a/.changeset/plenty-jars-exist.md b/.changeset/plenty-jars-exist.md
new file mode 100644
index 00000000000..f17a44c3d39
--- /dev/null
+++ b/.changeset/plenty-jars-exist.md
@@ -0,0 +1,5 @@
+---
+'@graphql-tools/merge': patch
+---
+
+fix(merge): ignore comments while merging directives #3031
diff --git a/packages/merge/src/typedefs-mergers/directives.ts b/packages/merge/src/typedefs-mergers/directives.ts
index 2808edbf62e..ef2a2410ee1 100644
--- a/packages/merge/src/typedefs-mergers/directives.ts
+++ b/packages/merge/src/typedefs-mergers/directives.ts
@@ -83,8 +83,14 @@ export function mergeDirectives(
 }
 
 function validateInputs(node: DirectiveDefinitionNode, existingNode: DirectiveDefinitionNode): void | never {
-  const printedNode = print(node);
-  const printedExistingNode = print(existingNode);
+  const printedNode = print({
+    ...node,
+    description: undefined,
+  });
+  const printedExistingNode = print({
+    ...existingNode,
+    description: undefined,
+  });
   // eslint-disable-next-line
   const leaveInputs = new RegExp('(directive @w*d*)|( on .*$)', 'g');
   const sameArguments = printedNode.replace(leaveInputs, '') === printedExistingNode.replace(leaveInputs, '');