[Python-checkins] Mitigate macOS race condition in installer build (GH-6686) (#6689)

[Ned Deily]

https://github.com/python/cpython/commit/5818f0896257c51654ce3efce9abad63e12db037
commit: 5818f0896257c51654ce3efce9abad63e12db037
branch: 2.7
author: Miss Islington (bot) <31488909+miss-islington at users.noreply.github.com>
committer: Ned Deily <nad at python.org>
date: 2018-05-02T01:50:12-04:00
summary:

Mitigate macOS race condition in installer build (GH-6686) (#6689)

(cherry picked from commit fc6aa28bfd0502d994cec30bd3679b7def3be2af)

Co-authored-by: Ned Deily <nad at python.org>

files:
M Mac/BuildScript/build-installer.py

diff --git a/Mac/BuildScript/build-installer.py b/Mac/BuildScript/build-installer.py
index 7875bc8ef419..038e1917c4e1 100755
--- a/Mac/BuildScript/build-installer.py
+++ b/Mac/BuildScript/build-installer.py
@@ -1530,6 +1530,10 @@ def buildDMG():
             shellQuote(os.path.join(WORKDIR, 'installer')),
             shellQuote(imagepath + ".tmp.dmg" )))
 
+    # Try to mitigate race condition in certain versions of macOS, e.g. 10.9,
+    # when hdiutil fails with  "Resource busy"
+
+    time.sleep(10)
 
     if not os.path.exists(os.path.join(WORKDIR, "mnt")):
         os.mkdir(os.path.join(WORKDIR, "mnt"))