From f0750cbe05fe2b0d2c1ecdf09164f55f4bf63070 Mon Sep 17 00:00:00 2001
From: achingbrain <alex@achingbrain.net>
Date: Wed, 20 Dec 2023 09:07:18 +0000
Subject: [PATCH] fix: default to concurrency 1 in ci

---
 src/utils.js | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/utils.js b/src/utils.js
index f358d6add..1b2f73204 100644
--- a/src/utils.js
+++ b/src/utils.js
@@ -345,8 +345,18 @@ export async function everyMonorepoProject (projectDir, fn, opts) {
     inDegree.set(name, project.siblingDependencies.length)
   }
 
+  let concurrency = opts?.concurrency
+
+  if (concurrency == null && process.env.CI != null) {
+    concurrency = 1
+  }
+
+  if (concurrency == null) {
+    concurrency = os.availableParallelism?.() ?? os.cpus().length
+  }
+
   const queue = new PQueue({
-    concurrency: opts?.concurrency ?? os.availableParallelism?.() ?? os.cpus().length
+    concurrency
   })
 
   while (inDegree.size) {