From f6080c0422e481370d9f584e2164e6cd3b644b8e Mon Sep 17 00:00:00 2001
From: Pedro Algarvio <pedro@algarvio.me>
Date: Tue, 12 Feb 2013 18:35:31 +0000
Subject: [PATCH] Allow tweaking colour support from an environment variable.

* Passing something like `BS_COLORS=0` disables colour support and is the same as passing `-N` to the script.
---
 bootstrap-salt.sh | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/bootstrap-salt.sh b/bootstrap-salt.sh
index b77ee38..a83b246 100755
--- a/bootstrap-salt.sh
+++ b/bootstrap-salt.sh
@@ -18,10 +18,18 @@ set -o nounset                              # Treat unset variables as an error
 ScriptVersion="1.4"
 ScriptName="bootstrap-salt.sh"
 
+#===============================================================================
+#  Environment variables taken into account.
+#-------------------------------------------------------------------------------
+#   * BS_COLORS: If 0 disables colour support
+#===============================================================================
+
+
 #===============================================================================
 #  LET THE BLACK MAGIC BEGIN!!!!
 #===============================================================================
 
+
 # Bootstrap script truth values
 BS_TRUE=1
 BS_FALSE=0
@@ -30,7 +38,7 @@ BS_FALSE=0
 #          NAME:  __detect_color_support
 #   DESCRIPTION:  Try to detect color support.
 #-------------------------------------------------------------------------------
-COLORS=$(tput colors 2>/dev/null || echo 0)
+COLORS=${BS_COLORS:-$(tput colors 2>/dev/null || echo 0)}
 __detect_color_support() {
     if [ $? -eq 0 ] && [ "$COLORS" -gt 2 ]; then
         RC="\033[1;31m"