netdev - [PATCH iproute2 1/2] color: Introduce and use default_color

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Message-ID: <Z9s8RSix3wtE8QPf@decadent.org.uk>
Date: Wed, 19 Mar 2025 22:51:01 +0100
From: Ben Hutchings <benh@...ian.org>
To: netdev@...r.kernel.org
Cc: 1088739@...s.debian.org
Subject: [PATCH iproute2 1/2] color: Introduce and use default_color_opt()
 function

As a preparatory step for supporting the NO_COLOR environment
variable, replace the direct use of CONF_COLOR with a
default_color_opt() function which initially returns CONF_COLOR.

Signed-off-by: Ben Hutchings <benh@...ian.org>
---
 bridge/bridge.c | 2 +-
 include/color.h | 1 +
 ip/ip.c         | 2 +-
 lib/color.c     | 5 +++++
 tc/tc.c         | 2 +-
 5 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/bridge/bridge.c b/bridge/bridge.c
index f8b5646a..d993ba19 100644
--- a/bridge/bridge.c
+++ b/bridge/bridge.c
@@ -103,7 +103,7 @@ static int batch(const char *name)
 int
 main(int argc, char **argv)
 {
-	int color = CONF_COLOR;
+	int color = default_color_opt();
 
 	while (argc > 1) {
 		const char *opt = argv[1];
diff --git a/include/color.h b/include/color.h
index 17ec56f3..b543c267 100644
--- a/include/color.h
+++ b/include/color.h
@@ -20,6 +20,7 @@ enum color_opt {
 	COLOR_OPT_ALWAYS = 2
 };
 
+int default_color_opt(void);
 bool check_enable_color(int color, int json);
 bool matches_color(const char *arg, int *val);
 int color_fprintf(FILE *fp, enum color_attr attr, const char *fmt, ...);
diff --git a/ip/ip.c b/ip/ip.c
index c7151fbd..e4b71bde 100644
--- a/ip/ip.c
+++ b/ip/ip.c
@@ -166,7 +166,7 @@ int main(int argc, char **argv)
 	const char *libbpf_version;
 	char *batch_file = NULL;
 	char *basename;
-	int color = CONF_COLOR;
+	int color = default_color_opt();
 
 	/* to run vrf exec without root, capabilities might be set, drop them
 	 * if not needed as the first thing.
diff --git a/lib/color.c b/lib/color.c
index cd0f9f75..5c4cc329 100644
--- a/lib/color.c
+++ b/lib/color.c
@@ -81,6 +81,11 @@ static void enable_color(void)
 	set_color_palette();
 }
 
+int default_color_opt(void)
+{
+	return CONF_COLOR;
+}
+
 bool check_enable_color(int color, int json)
 {
 	if (json || color == COLOR_OPT_NEVER)
diff --git a/tc/tc.c b/tc/tc.c
index beb88111..0fc658c8 100644
--- a/tc/tc.c
+++ b/tc/tc.c
@@ -254,7 +254,7 @@ int main(int argc, char **argv)
 {
 	const char *libbpf_version;
 	char *batch_file = NULL;
-	int color = CONF_COLOR;
+	int color = default_color_opt();
 	int ret;
 
 	while (argc > 1) {


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