From 5786c01c8ca89d689dbaf6ffba279dfd4812d19b Mon Sep 17 00:00:00 2001
From: "Christian W. Zuckschwerdt" <christian@zuckschwerdt.org>
Date: Fri, 16 Feb 2024 09:05:21 +0100
Subject: [PATCH] Add honor the NO_COLOR env var

---
 src/term_ctl.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/src/term_ctl.c b/src/term_ctl.c
index d4a8cc80..f488e3b0 100644
--- a/src/term_ctl.c
+++ b/src/term_ctl.c
@@ -228,13 +228,19 @@ int term_has_color(void *ctx)
 #ifdef _WIN32
     return _term_has_color(ctx);
 #else
-    char const *env = getenv("RTL433_COLOR");
-    if (env && strcmp(env, "always") == 0) {
+    char const *color = getenv("RTL433_COLOR");
+    if (color && strcmp(color, "always") == 0) {
         return 1;
     }
-    if (env && strcmp(env, "never") == 0) {
+    if (color && strcmp(color, "never") == 0) {
         return 0;
     }
+
+    char const *no_color = getenv("NO_COLOR");
+    if (no_color && no_color[0] != '\0') {
+        return 0;
+    }
+
     FILE *fp = (FILE *)ctx;
     return isatty(fileno(fp));
 #endif