New arguments for function "register" in scripts (author, license), with optional check of license when script is loaded

src/plugins/scripts/lua/lua.c

@@ -2419,7 +2419,7 @@ weechat_lua_unload (t_weechat_plugin *plugin, t_plugin_script *script)
                           "Unloading Lua script \"%s\"",
                           script->name);
     
-    if (script->shutdown_func[0])
+    if (script->shutdow_func && script->shutdown_func[0])
     {
         r = weechat_lua_exec (plugin, script, SCRIPT_EXEC_INT,
 			      script->shutdown_func, NULL, NULL, NULL);
@@ -2712,6 +2712,7 @@ weechat_plugin_init (t_weechat_plugin *plugin)
     plugin->mkdir_home (plugin, "lua");
     plugin->mkdir_home (plugin, "lua/autoload");
     
+    script_init (weechat_lua_plugin);
     weechat_script_auto_load (plugin, "lua", weechat_lua_load);
     
     /* init ok */

src/plugins/scripts/python/python.c

@@ -2377,7 +2377,7 @@ weechat_python_unload (t_weechat_plugin *plugin, t_plugin_script *script)
                           "Unloading Python script \"%s\"",
                           script->name);
     
-    if (script->shutdown_func[0])
+    if (script->shutdown_func && script->shutdown_func[0])
     {
         r = (int *) weechat_python_exec (plugin, script, SCRIPT_EXEC_INT,
 					 script->shutdown_func, NULL, NULL, NULL);
@@ -2694,7 +2694,8 @@ weechat_plugin_init (t_weechat_plugin *plugin)
 
     plugin->mkdir_home (plugin, "python");
     plugin->mkdir_home (plugin, "python/autoload");
-    
+
+    script_init (weechat_python_plugin);
     weechat_script_auto_load (plugin, "python", weechat_python_load);
     
     /* init ok */

src/plugins/scripts/ruby/ruby.c

@@ -2273,7 +2273,7 @@ weechat_ruby_unload (t_weechat_plugin *plugin, t_plugin_script *script)
                           "Unloading Ruby script \"%s\"",
                           script->name);
     
-    if (script->shutdown_func[0])
+    if (script->shutdown_func && script->shutdown_func[0])
     {
         r = (int *) weechat_ruby_exec (plugin, script, SCRIPT_EXEC_INT,
 				       script->shutdown_func, NULL, NULL, NULL);
@@ -2675,7 +2675,8 @@ weechat_plugin_init (t_weechat_plugin *plugin)
                                    "Ruby error: %s", STR2CSTR(ruby_error_info));
 	return PLUGIN_RC_KO;
     }
-   
+    
+    script_init (weechat_ruby_plugin);
     weechat_script_auto_load (plugin, "ruby", weechat_ruby_load);
     
     /* init ok */

src/plugins/scripts/script.h

@@ -23,17 +23,19 @@
 #define WEECHAT_SCRIPT_EXEC_INT    1
 #define WEECHAT_SCRIPT_EXEC_STRING 2
 
-#define WEECHAT_SCRIPT_MSG_NOT_INITIALIZED(__language, __function)      \
+#define WEECHAT_SCRIPT_MSG_NOT_INITIALIZED(__function)                  \
     weechat_printf (NULL,                                               \
                     weechat_gettext("%s%s: unable to call function "    \
                                     "\"%s\", script is not "            \
                                     "initialized"),                     \
-                    weechat_prefix ("error"), __language, __function)
-#define WEECHAT_SCRIPT_MSG_WRONG_ARGUMENTS(__language, __function)      \
+                    weechat_prefix ("error"), weechat_plugin->name,     \
+                    __function)
+#define WEECHAT_SCRIPT_MSG_WRONG_ARGUMENTS(__function)                  \
     weechat_printf (NULL,                                               \
                     weechat_gettext("%s%s: wrong arguments for "        \
                                     "function \"%s\""),                 \
-                    weechat_prefix ("error"), __language, __function)
+                    weechat_prefix ("error"), weechat_plugin->name,     \
+                    __function)
 
 struct t_plugin_script
 {
@@ -41,8 +43,10 @@ struct t_plugin_script
     char *filename;                      /* name of script on disk          */
     void *interpreter;                   /* interpreter for script          */
     char *name;                          /* script name                     */
-    char *description;                   /* plugin description              */
+    char *author;                        /* author name/mail                */
     char *version;                       /* plugin version                  */
+    char *license;                       /* script license                  */
+    char *description;                   /* plugin description              */
     char *shutdown_func;                 /* function when script is unloaded*/
     char *charset;                       /* script charset                  */
     
@@ -52,6 +56,7 @@ struct t_plugin_script
     struct t_plugin_script *next_script; /* link to next script             */
 };
 
+extern void script_init (struct t_weechat_plugin *weechat_plugin);
 extern char *script_pointer_to_string (void *pointer);
 extern void *script_string_to_pointer (char *pointer_str);
 extern void script_auto_load (struct t_weechat_plugin *weechat_plugin,
@@ -65,8 +70,8 @@ extern char *script_search_full_name (struct t_weechat_plugin *weechat_plugin,
 extern struct t_plugin_script *script_add (struct t_weechat_plugin *weechat_plugin,
                                            struct t_plugin_script **script_list,
                                            char *filename, char *name,
-                                           char *version,
-                                           char *shutdown_func,
+                                           char *author, char *version,
+                                           char *license, char *shutdown_func,
                                            char *description,
                                            char *charset);
 extern void script_remove (struct t_weechat_plugin *weechat_plugin,