From 486872150638d56483c2bc429ba9e137d9974ee8 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <edolstra@gmail.com>
Date: Thu, 15 Mar 2018 16:08:07 +0100
Subject: Filter ANSI colors when not writing to a terminal

Fixes https://github.com/NixOS/nixpkgs/issues/37114.
---
 src/nix/progress-bar.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/nix')

diff --git a/src/nix/progress-bar.cc b/src/nix/progress-bar.cc
index e6553c06f..40b905ba3 100644
--- a/src/nix/progress-bar.cc
+++ b/src/nix/progress-bar.cc
@@ -308,7 +308,7 @@ public:
         auto width = getWindowSize().second;
         if (width <= 0) std::numeric_limits<decltype(width)>::max();
 
-        writeToStderr("\r" + filterANSIEscapes(line, width) + "\e[K");
+        writeToStderr("\r" + filterANSIEscapes(line, false, width) + "\e[K");
     }
 
     std::string getStatus(State & state)
-- 
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