From cec2be64f36dce184986cbe69adf80a3fac6985a Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <e.dolstra@tudelft.nl>
Date: Thu, 6 Oct 2005 15:01:46 +0000
Subject: [PATCH] * Only colorise if we are attached to a terminal.
---
src/nix-env/main.cc | 3 +++
1 file changed, 3 insertions(+)
diff --git a/src/nix-env/main.cc b/src/nix-env/main.cc
index 6d542c9b6..f0493bb5e 100644
--- a/src/nix-env/main.cc
+++ b/src/nix-env/main.cc
@@ -13,6 +13,8 @@
#include <ctime>
#include <algorithm>
+#include <unistd.h>
+
typedef enum {
srcNixExprDrvs,
@@ -711,6 +713,7 @@ static VersionDiff compareVersionAgainstSet(
static string colorString(const string & s)
{
+ if (!isatty(STDOUT_FILENO)) return s;
return "\e[1;31m" + s + "\e[0m";
}
--
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