From adbdf11f94afd52d276c7891515e0eb808f6003f Mon Sep 17 00:00:00 2001
From: Jean Boussier <jean.boussier@gmail.com>
Date: Thu, 18 Jun 2020 16:01:36 +0200
Subject: [open3] only close streams if a block is passed

Ref: 5429deb075beb9a2b67adae269bbac16325876d1

The previous change totally borke `popen2e` in this usage:

```ruby
require 'open3'
stdin, stdout, process = Open3.popen2e("cat")
puts stdout.read
```
---
 lib/open3.rb | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

(limited to 'lib')

diff --git a/lib/open3.rb b/lib/open3.rb
index ada451c249..3ee81c30ac 100644
--- a/lib/open3.rb
+++ b/lib/open3.rb
@@ -207,10 +207,12 @@ module Open3
 
     popen_run(cmd, opts, [in_r, out_w], [in_w, out_r], &block)
   ensure
-    in_r.close
-    in_w.close
-    out_r.close
-    out_w.close
+    if block
+      in_r.close
+      in_w.close
+      out_r.close
+      out_w.close
+    end
   end
   module_function :popen2e
 
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