From e84f668025a40e56506f6fbffb7e71c42a59a4e5 Mon Sep 17 00:00:00 2001
From: Anthony Fu <github@antfu.me>
Date: Mon, 12 Aug 2024 12:42:09 +0200
Subject: [PATCH] fix: only write to `pnpm-workspace.yaml` when changed, close
 #131

---
 src/io/pnpmWorkspaces.ts | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/src/io/pnpmWorkspaces.ts b/src/io/pnpmWorkspaces.ts
index 26609da..4da52a7 100644
--- a/src/io/pnpmWorkspaces.ts
+++ b/src/io/pnpmWorkspaces.ts
@@ -59,13 +59,22 @@ export async function writePnpmWorkspace(
   if (!Object.keys(versions).length)
     return
 
+  let changed = false
+
   if (catalogName === 'default') {
-    pkg.raw.catalog = versions
+    if (JSON.stringify(pkg.raw.catalog) !== JSON.stringify(versions)) {
+      pkg.raw.catalog = versions
+      changed = true
+    }
   }
   else {
     pkg.raw.catalogs ??= {}
-    pkg.raw.catalogs[catalogName] = versions
+    if (pkg.raw.catalogs[catalogName] !== versions) {
+      pkg.raw.catalogs[catalogName] = versions
+      changed = true
+    }
   }
 
-  await fs.writeFile(pkg.filepath, YAML.dump(pkg.raw), 'utf-8')
+  if (changed)
+    await fs.writeFile(pkg.filepath, YAML.dump(pkg.raw), 'utf-8')
 }