From e84ea6f307bd12783d4d0ae721ecaad1b6005b30 Mon Sep 17 00:00:00 2001
From: Tony Duckles <tony@nynim.org>
Date: Sun, 26 Nov 2023 10:04:34 -0600
Subject: [PATCH] .bashrc: Only set GREP_COLOR env-var on BSD-type platforms

Older grep versions used the GREP_COLOR env-var for colorized output
configuration. Newer GNU grep versions use the GREP_COLORS env-var,
which supports additional colorize options.  GNU grep 3.8+ will now log
a warning message if the GREP_COLOR env-var is set, warning that env-var
is deprecated. But BSD grep still relies on GREP_COLOR.

Conditionalize the setting of GREP_COLOR vs GREP_COLORS based on OS-type
[e.g. GNU grep vs BSD grep].
---
 .bashrc | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/.bashrc b/.bashrc
index c0ea16d..510102b 100644
--- a/.bashrc
+++ b/.bashrc
@@ -337,6 +337,14 @@ test -n "$LS_COMMON" &&
 
 # setup color grep output if available
 if [ -n "$COLORS" ]; then
+    case "$UNAME" in
+        "Darwin")
+            export GREP_COLOR='1;32'  # BSD grep
+            ;;
+        *)
+            export GREP_COLORS='fn=36:ln=33:ms=1;32'  # GNU grep
+            ;;
+    esac
     case "$UNAME" in
         "SunOS")
             test -x /usr/gnu/bin/grep && alias grep="/usr/gnu/bin/grep --color=always"
@@ -346,10 +354,6 @@ if [ -n "$COLORS" ]; then
             alias grep="command grep --color=always"
             ;;
     esac
-    # older versions of grep only support a singular highlight color
-    export GREP_COLOR='1;32'
-    # newer versions of grep have more flexible color configuration
-    export GREP_COLORS='fn=36:ln=33:ms=1;32'
 fi
 
 # ---------------------------------------------------------------------------
-- 
2.47.1