From 52e047138a32e8366369737dc54198f1a5baa1cb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bartek=20Iwa=C5=84czuk?= <biwanczuk@gmail.com>
Date: Sun, 10 Feb 2019 01:13:44 +0100
Subject: [PATCH] support NO_COLOR in colors module (denoland/deno_std#182)

Original: https://github.com/denoland/deno_std/commit/a81d2ae1f962c3e0c845e63bf06da01e4b7cfcc2
---
 colors/README.md | 2 ++
 colors/mod.ts    | 7 ++++++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/colors/README.md b/colors/README.md
index 3c371197f9..e6e0890ffb 100644
--- a/colors/README.md
+++ b/colors/README.md
@@ -16,6 +16,8 @@ import { bgBlue, red, bold } from "https://deno.land/x/std/colors/mod.ts";
 console.log(bgBlue(red(bold("Hello world!"))));
 ```
 
+This module supports `NO_COLOR` environmental variable disabling any coloring if `NO_COLOR` is set.
+
 ## TODO
 
 - Currently, it just assumes it is running in an environment that supports ANSI
diff --git a/colors/mod.ts b/colors/mod.ts
index e271c54cf7..c8bb5b539d 100644
--- a/colors/mod.ts
+++ b/colors/mod.ts
@@ -1,4 +1,5 @@
 // Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
+import { noColor } from "deno";
 
 interface Code {
   open: string;
@@ -6,9 +7,13 @@ interface Code {
   regexp: RegExp;
 }
 
-let enabled = true;
+let enabled = !noColor;
 
 export function setEnabled(value: boolean) {
+  if (noColor) {
+    return;
+  }
+
   enabled = value;
 }