From 5fc5e67e976d40cf020ebb1f6dcf05537bc2a912 Mon Sep 17 00:00:00 2001
From: Martin Vaaden <mavaaden@gmail.com>
Date: Fri, 2 Dec 2016 22:54:59 +0100
Subject: [PATCH] Added -o option for writing a startup message on stdout

---
 README.pod |  4 ++++
 lemonbar.c | 12 ++++++++++--
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/README.pod b/README.pod
index b4ffccd..2f30b50 100644
--- a/README.pod
+++ b/README.pod
@@ -65,6 +65,10 @@ Set the foreground color of the bar. Accepts the same color formats as B<-B>.
 
 Set the underline color of the bar. Accepts the same color formats as B<-B>.
 
+=item B<-o>
+
+Print a message ("started\n") to sdtout when the bar has been initialized.
+
 =back
 
 =head1 FORMATTING
diff --git a/lemonbar.c b/lemonbar.c
index 43aab8c..dd48827 100644
--- a/lemonbar.c
+++ b/lemonbar.c
@@ -1264,6 +1264,7 @@ main (int argc, char **argv)
     xcb_button_press_event_t *press_ev;
     char input[4096] = {0, };
     bool permanent = false;
+    bool startup_notification = false;
     int geom_v[4] = { -1, -1, 0, 0 };
     int ch, areas;
     char *wm_name;
@@ -1285,7 +1286,7 @@ main (int argc, char **argv)
     // Connect to the Xserver and initialize scr
     xconn();
 
-    while ((ch = getopt(argc, argv, "hg:bdf:a:pu:B:F:U:n:")) != -1) {
+    while ((ch = getopt(argc, argv, "hg:bdf:a:pu:B:F:U:n:o")) != -1) {
         switch (ch) {
             case 'h':
                 printf ("lemonbar version %s\n", VERSION);
@@ -1300,7 +1301,8 @@ main (int argc, char **argv)
                         "\t-n Set the WM_NAME atom to the specified value for this bar\n"
                         "\t-u Set the underline/overline height in pixels\n"
                         "\t-B Set background color in #AARRGGBB\n"
-                        "\t-F Set foreground color in #AARRGGBB\n", argv[0]);
+                        "\t-F Set foreground color in #AARRGGBB\n"
+                        "\t-o Write a message to stdout when started\n", argv[0]);
                 exit (EXIT_SUCCESS);
             case 'g': (void)parse_geometry_string(optarg, geom_v); break;
             case 'p': permanent = true; break;
@@ -1313,6 +1315,7 @@ main (int argc, char **argv)
             case 'F': dfgc = fgc = parse_color(optarg, NULL, (rgba_t)0xffffffffU); break;
             case 'U': dugc = ugc = parse_color(optarg, NULL, fgc); break;
             case 'a': areas = strtoul(optarg, NULL, 10); break;
+            case 'o': startup_notification = true; break;
         }
     }
 
@@ -1339,6 +1342,11 @@ main (int argc, char **argv)
 
     // Do the heavy lifting
     init(wm_name);
+    
+    if(startup_notification){
+        (void)write(STDOUT_FILENO, "started\n", 8);
+    }
+    
     // The string is strdup'd when the command line arguments are parsed
     free(wm_name);
     // Get the fd to Xserver