From 424612ea9dd30fe3a8654757d6d3982835a92a9e Mon Sep 17 00:00:00 2001
From: Michael Vines <mvines@gmail.com>
Date: Tue, 4 Dec 2018 19:56:23 -0800
Subject: [PATCH] Reduce |ulimit -n| on macOS to max supported amount

---
 ci/test-stable.sh | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/ci/test-stable.sh b/ci/test-stable.sh
index 4adede9f0e..e0480e62d0 100755
--- a/ci/test-stable.sh
+++ b/ci/test-stable.sh
@@ -12,8 +12,15 @@ _() {
   "$@"
 }
 
-if [[ $(ulimit -n) -lt 65000 ]]; then
-  ulimit -n 65000 || echo 'Error: nofiles too small, run "ulimit -n 65000" to continue' && exit 1
+maxOpenFds=65000
+if [[ $(uname) = Darwin ]]; then
+  maxOpenFds=24576 # Appears to be the max permitted on macOS...
+fi
+if [[ $(ulimit -n) -lt $maxOpenFds ]]; then
+  ulimit -n $maxOpenFds|| {
+    echo 'Error: nofiles too small, run "ulimit -n 65000" to continue';
+    exit 1
+  }
 fi
 
 _ cargo build --all --verbose