From ca5b9ff2057b1bcc62ed2d27d67d1007a5e39d05 Mon Sep 17 00:00:00 2001
From: Daylin Morgan <me@dayl.in>
Date: Tue, 11 Feb 2025 12:09:04 -0600
Subject: [PATCH] isNil check?

---
 pkgs/oizys/src/oizys/exec.nim | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/pkgs/oizys/src/oizys/exec.nim b/pkgs/oizys/src/oizys/exec.nim
index c8574f6..4ae5540 100644
--- a/pkgs/oizys/src/oizys/exec.nim
+++ b/pkgs/oizys/src/oizys/exec.nim
@@ -46,17 +46,17 @@ proc runCmdCapt*(
   result.exitCode = -1
   var line: string
   while true:
-    if CaptStdout in capture:
+    if CaptStdout in capture and not isNil(outstrm):
       if outstrm.readLine(line):
         result.stdout.add line & '\n'
-    if CaptStderr in capture:
+    if CaptStderr in capture and not isNil(errstrm):
       if errstrm.readLine(line):
         result.stderr.add line & '\n'
     result.exitCode = peekExitCode(p)
     if result.exitCode != -1:
-      if CaptStdout in capture:
+      if CaptStdout in capture and not isNil(outstrm):
         result.stdout.add outstrm.readAll()
-      if CaptStderr in capture:
+      if CaptStderr in capture and not isNil(errstrm):
         result.stderr.add errstrm.readAll()
       break