From c64c368d86a4319e43b7ff3d73a4afe0f4e8adf0 Mon Sep 17 00:00:00 2001
From: Charles Lehner <cel@celehner.com>
Date: Sat, 9 Jan 2016 14:18:53 -0500
Subject: [PATCH] Reload on SIGHUP

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This patch makes surf reload its pages when it receives a SIGHUP signal.
This makes it easier for shell scripts to trigger surf to reload.

I'm aware of using xdotool to trigger ctrl+r keypresses for reloading
but I wasn't able to get that to work in a general way. [1]

I'm sending this here in case surf maintainers and users would like to
include this in core - if not I will submit it to the wiki.

Regards,
Charles

[1] http://surf.suckless.org/files/autorefresh

Signed-off-by: Christoph Lohmann <20h@r-36.net>
---
 surf.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/surf.c b/surf.c
index 7e2b2bd..29b9ede 100644
--- a/surf.c
+++ b/surf.c
@@ -145,6 +145,7 @@ static void usage(void);
 static void die(const char *errstr, ...);
 static void setup(void);
 static void sigchld(int unused);
+static void sighup(int unused);
 static char *buildfile(const char *path);
 static char *buildpath(const char *path);
 static const char *getuserhomedir(const char *user);
@@ -266,6 +267,9 @@ setup(void)
 
 	/* clean up any zombies immediately */
 	sigchld(0);
+	if (signal(SIGHUP, sighup) == SIG_ERR)
+		die("Can't install SIGHUP handler");
+
 	gtk_init(NULL, NULL);
 
 	gdpy = gdk_display_get_default();
@@ -331,6 +335,16 @@ sigchld(int unused)
 		;
 }
 
+void
+sighup(int unused)
+{
+	Arg a = { .b = 0 };
+	Client *c;
+
+	for (c = clients; c; c = c->next)
+		reload(c, &a);
+}
+
 char *
 buildfile(const char *path)
 {