From 5b8350e5787c6fcb62ca09878a7cd075616d6af8 Mon Sep 17 00:00:00 2001
From: Charles Lyding <19598772+clydin@users.noreply.github.com>
Date: Thu, 29 May 2025 12:31:54 -0400
Subject: [PATCH] fix(@schematics/angular): only overwrite JSON file if
 actually changed

The JSON file helper utility used within the Angular schematics now
contains additional checks when attempting to modify a file to avoid
overwriting a file if no actual changes will occur after a modify request.
---
 packages/schematics/angular/utility/json-file.ts | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/packages/schematics/angular/utility/json-file.ts b/packages/schematics/angular/utility/json-file.ts
index dffb7a94f997..e7c767745b90 100644
--- a/packages/schematics/angular/utility/json-file.ts
+++ b/packages/schematics/angular/utility/json-file.ts
@@ -95,9 +95,16 @@ export class JSONFile {
       },
     });
 
-    this.content = applyEdits(this.content, edits);
-    this.host.overwrite(this.path, this.content);
-    this._jsonAst = undefined;
+    if (edits.length > 0) {
+      const editedContent = applyEdits(this.content, edits);
+
+      // Update the file content if it changed
+      if (editedContent !== this.content) {
+        this.content = editedContent;
+        this.host.overwrite(this.path, editedContent);
+        this._jsonAst = undefined;
+      }
+    }
   }
 
   remove(jsonPath: JSONPath): void {