core: add a welcome message on first WeeChat run (closes #318)

src/core/wee-config-file.c

@@ -35,6 +35,7 @@
 
 #include "weechat.h"
 #include "wee-config-file.h"
+#include "wee-config.h"
 #include "wee-hdata.h"
 #include "wee-hook.h"
 #include "wee-infolist.h"
@@ -2358,7 +2359,11 @@ config_file_read_internal (struct t_config_file *config_file, int reload)
 
     /* create file with default options if it does not exist */
     if (access (filename, F_OK) != 0)
+    {
+        if (strcmp (config_file->name, WEECHAT_CONFIG_NAME) == 0)
+            weechat_first_start = 1;
         config_file_write_internal (config_file, 1);
+    }
 
     /* read config file */
     config_file->file = fopen (filename, "r");

src/core/weechat.c

@@ -82,6 +82,7 @@
 int weechat_debug_core = 0;            /* debug level for core              */
 char *weechat_argv0 = NULL;            /* WeeChat binary file name (argv[0])*/
 int weechat_upgrading = 0;             /* =1 if WeeChat is upgrading        */
+int weechat_first_start = 0;           /* first start of WeeChat?           */
 time_t weechat_first_start_time = 0;   /* start time (used by /uptime cmd)  */
 int weechat_upgrade_count = 0;         /* number of /upgrade done           */
 struct timeval weechat_current_start_timeval; /* start time used to display */

src/core/weechat.h

@@ -95,6 +95,7 @@
 extern int weechat_debug_core;
 extern char *weechat_argv0;
 extern int weechat_upgrading;
+extern int weechat_first_start;
 extern time_t weechat_first_start_time;
 extern struct timeval weechat_current_start_timeval;
 extern int weechat_upgrade_count;