From a9f6cd0e1740ca89595ea4d5ce909e6cf74c55d4 Mon Sep 17 00:00:00 2001
From: Kevin Hamacher <kevin.hamacher@rub.de>
Date: Wed, 16 Dec 2015 11:25:55 +0100
Subject: [PATCH] Make swaybar run without status_command

---
 swaybar/main.c | 63 ++++++++++++++++++++++++++++++++------------------
 1 file changed, 41 insertions(+), 22 deletions(-)

diff --git a/swaybar/main.c b/swaybar/main.c
index 3d817f86b..8f544c025 100644
--- a/swaybar/main.c
+++ b/swaybar/main.c
@@ -189,7 +189,9 @@ void bar_ipc_init(int outputi, const char *bar_id) {
 
 	// TODO: More of these options
 	// TODO: Refactor swaybar into several files, create a bar config struct (shared with compositor?)
-	if (_status_command) status_command = strdup(json_object_get_string(_status_command));
+	if (_status_command) {
+		status_command = strdup(json_object_get_string(_status_command));
+	}
 
 	if (_colors) {
 		json_object *background, *statusline, *separator;
@@ -219,30 +221,42 @@ void bar_ipc_init(int outputi, const char *bar_id) {
 		if (background) colors.background = parse_color(json_object_get_string(background));
 		if (statusline) colors.statusline = parse_color(json_object_get_string(statusline));
 		if (separator) colors.seperator = parse_color(json_object_get_string(separator));
-		if (focused_workspace_border)
+		if (focused_workspace_border) {
 			colors.focused_workspace.border = parse_color(json_object_get_string(focused_workspace_border));
-		if (focused_workspace_bg)
+		}
+		if (focused_workspace_bg) {
 			colors.focused_workspace.background = parse_color(json_object_get_string(focused_workspace_bg));
-		if (focused_workspace_text)
+		}
+		if (focused_workspace_text) {
 			colors.focused_workspace.text = parse_color(json_object_get_string(focused_workspace_text));
-		if (active_workspace_border)
+		}
+		if (active_workspace_border) {
 			colors.active_workspace.border = parse_color(json_object_get_string(active_workspace_border));
-		if (active_workspace_bg)
+		}
+		if (active_workspace_bg) {
 			colors.active_workspace.background = parse_color(json_object_get_string(active_workspace_bg));
-		if (active_workspace_text)
+		}
+		if (active_workspace_text) {
 			colors.active_workspace.text = parse_color(json_object_get_string(active_workspace_text));
-		if (inactive_workspace_border)
+		}
+		if (inactive_workspace_border) {
 			colors.inactive_workspace.border = parse_color(json_object_get_string(inactive_workspace_border));
-		if (inactive_workspace_bg)
+		}
+		if (inactive_workspace_bg) {
 			colors.inactive_workspace.background = parse_color(json_object_get_string(inactive_workspace_bg));
-		if (inactive_workspace_text)
+		}
+		if (inactive_workspace_text) {
 			colors.inactive_workspace.text = parse_color(json_object_get_string(inactive_workspace_text));
-		if (binding_mode_border)
+		}
+		if (binding_mode_border) {
 			colors.binding_mode.border = parse_color(json_object_get_string(binding_mode_border));
-		if (binding_mode_bg)
+		}
+		if (binding_mode_bg) {
 			colors.binding_mode.background = parse_color(json_object_get_string(binding_mode_bg));
-		if (binding_mode_text)
+		}
+		if (binding_mode_text) {
 			colors.binding_mode.text = parse_color(json_object_get_string(binding_mode_text));
+		}
 	}
 
 	json_object_put(bar_config);
@@ -258,12 +272,15 @@ void bar_ipc_init(int outputi, const char *bar_id) {
 
 void update() {
 	int pending;
-	if (ioctl(fileno(command), FIONREAD, &pending) != -1 && pending > 0) {
-		free(line);
-		line = read_line(command);
-		int l = strlen(line) - 1;
-		if (line[l] == '\n') {
-			line[l] = '\0';
+	// If no command is set, we don't have to update anything
+	if (status_command) {
+		if (ioctl(fileno(command), FIONREAD, &pending) != -1 && pending > 0) {
+			free(line);
+			line = read_line(command);
+			int l = strlen(line) - 1;
+			if (line[l] == '\n') {
+				line[l] = '\0';
+			}
 		}
 	}
 	if (ioctl(socketfd, FIONREAD, &pending) != -1 && pending > 0) {
@@ -396,9 +413,11 @@ int main(int argc, char **argv) {
 
 	bar_ipc_init(desired_output, bar_id);
 
-	command = popen(status_command, "r");
-	line = malloc(1024);
-	line[0] = '\0';
+	if (status_command) {
+		command = popen(status_command, "r");
+		line = malloc(1024);
+		line[0] = '\0';
+	}
 
 	window = window_setup(registry, output->width, 30, false);
 	if (!window) {