From 62b80d74bf19c89db2d401256b0f2464e7581c44 Mon Sep 17 00:00:00 2001
From: Felix Tenley <dev@felschr.com>
Date: Mon, 21 Jan 2019 14:08:12 +0100
Subject: [PATCH] skip postinstall chown on Windows systems

When running the current library version on Windows the process fails with an `chown: invalid option -- '1'` error messages.
This is because `os.userInfo()` returns -1 for uid & gid on Windows systems (https://nodejs.org/api/os.html#os_os_userinfo_options).

Skipping the postinstall step on Windows seems to be a good option for now.
On my system it's running fine.
---
 index.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/index.js b/index.js
index 6770f21..0a8ceb8 100644
--- a/index.js
+++ b/index.js
@@ -335,6 +335,8 @@ pip3 install -U virtualenv && ${runPy}
   postinstall(dir, libDir, funcRuntime) {
     if (!this.dockerizedPip) {
       return BbPromise.resolve()
+    } else if (os.platform() === 'win32') {
+        return BbPromise.resolve()
     }
     const cmd = (() => {
       const userInfo = os.userInfo();