core: remove directory "src/plugins/scripts", move script plugins in "src/plugins"

src/plugins/lua/CMakeLists.txt

@@ -0,0 +1,35 @@
+#
+# Copyright (C) 2006-2007 Emmanuel Bouthenot <kolter@openics.org>
+# Copyright (C) 2006-2012 Sebastien Helleu <flashcode@flashtux.org>
+#
+# This file is part of WeeChat, the extensible chat client.
+#
+# WeeChat is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# WeeChat is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with WeeChat.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+ADD_LIBRARY(lua MODULE weechat-lua.c weechat-lua.h weechat-lua-api.c
+weechat-lua-api.h)
+
+SET_TARGET_PROPERTIES(lua PROPERTIES PREFIX "")
+
+IF(LUA_FOUND)
+  INCLUDE_DIRECTORIES(${LUA_INCLUDE_PATH} )
+  IF(LUA_LIBRARY AND LUALIB_LIBRARY)
+    TARGET_LINK_LIBRARIES(lua ${LUA_LIBRARY} ${LUALIB_LIBRARY} weechat_plugins_scripts)
+  ELSE(LUA_LIBRARY AND LUALIB_LIBRARY)
+    TARGET_LINK_LIBRARIES(lua ${LUA_LIBRARY} weechat_plugins_scripts)
+  ENDIF(LUA_LIBRARY AND LUALIB_LIBRARY)
+ENDIF(LUA_FOUND)
+
+INSTALL(TARGETS lua LIBRARY DESTINATION ${LIBDIR}/plugins)

src/plugins/lua/Makefile.am

@@ -0,0 +1,34 @@
+#
+# Copyright (C) 2006-2007 Emmanuel Bouthenot <kolter@openics.org>
+# Copyright (C) 2006-2012 Sebastien Helleu <flashcode@flashtux.org>
+#
+# This file is part of WeeChat, the extensible chat client.
+#
+# WeeChat is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# WeeChat is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with WeeChat.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+INCLUDES = -DLOCALEDIR=\"$(datadir)/locale\" $(LUA_CFLAGS)
+
+libdir = ${weechat_libdir}/plugins
+
+lib_LTLIBRARIES = lua.la
+
+lua_la_SOURCES = weechat-lua.c \
+                 weechat-lua.h \
+                 weechat-lua-api.c \
+                 weechat-lua-api.h
+lua_la_LDFLAGS = -module
+lua_la_LIBADD  = ../lib_weechat_plugins_scripts.la $(LUA_LFLAGS)
+
+EXTRA_DIST = CMakeLists.txt

src/plugins/lua/weechat-lua-api.h

@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2006-2007 Emmanuel Bouthenot <kolter@openics.org>
+ * Copyright (C) 2006-2012 Sebastien Helleu <flashcode@flashtux.org>
+ *
+ * This file is part of WeeChat, the extensible chat client.
+ *
+ * WeeChat is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * WeeChat is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with WeeChat.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __WEECHAT_LUA_API_H
+#define __WEECHAT_LUA_API_H 1
+
+extern struct luaL_Reg weechat_lua_api_funcs[];
+
+extern int weechat_lua_api_buffer_input_data_cb (void *data,
+                                                 struct t_gui_buffer *buffer,
+                                                 const char *input_data);
+extern int weechat_lua_api_buffer_close_cb (void *data,
+                                            struct t_gui_buffer *buffer);
+
+#endif /* __WEECHAT_LUA_API_H */

src/plugins/lua/weechat-lua.c

@@ -0,0 +1,794 @@
+/*
+ * Copyright (C) 2006-2007 Emmanuel Bouthenot <kolter@openics.org>
+ * Copyright (C) 2006-2012 Sebastien Helleu <flashcode@flashtux.org>
+ *
+ * This file is part of WeeChat, the extensible chat client.
+ *
+ * WeeChat is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * WeeChat is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with WeeChat.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/*
+ * weechat-lua.c: lua plugin for WeeChat
+ */
+
+#undef _
+
+#include <lua.h>
+#include <lualib.h>
+#include <lauxlib.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "../weechat-plugin.h"
+#include "../plugin-script.h"
+#include "weechat-lua.h"
+#include "weechat-lua-api.h"
+
+
+WEECHAT_PLUGIN_NAME(LUA_PLUGIN_NAME);
+WEECHAT_PLUGIN_DESCRIPTION(N_("Support of lua scripts"));
+WEECHAT_PLUGIN_AUTHOR("Sebastien Helleu <flashcode@flashtux.org>");
+WEECHAT_PLUGIN_VERSION(WEECHAT_VERSION);
+WEECHAT_PLUGIN_LICENSE(WEECHAT_LICENSE);
+
+struct t_weechat_plugin *weechat_lua_plugin;
+
+int lua_quiet = 0;
+struct t_plugin_script *lua_scripts = NULL;
+struct t_plugin_script *last_lua_script = NULL;
+struct t_plugin_script *lua_current_script = NULL;
+struct t_plugin_script *lua_registered_script = NULL;
+const char *lua_current_script_filename = NULL;
+lua_State *lua_current_interpreter = NULL;
+
+/*
+ * string used to execute action "install":
+ * when signal "lua_install_script" is received, name of string
+ * is added to this string, to be installed later by a timer (when nothing is
+ * running in script)
+ */
+char *lua_action_install_list = NULL;
+
+/*
+ * string used to execute action "remove":
+ * when signal "lua_remove_script" is received, name of string
+ * is added to this string, to be removed later by a timer (when nothing is
+ * running in script)
+ */
+char *lua_action_remove_list = NULL;
+
+
+/*
+ * weechat_lua_hashtable_map_cb: callback called for each key/value in a
+ *                               hashtable
+ */
+
+void
+weechat_lua_hashtable_map_cb (void *data,
+                              struct t_hashtable *hashtable,
+                              const char *key,
+                              const char *value)
+{
+    lua_State *interpreter;
+
+    /* make C compiler happy */
+    (void) hashtable;
+
+    interpreter = (lua_State *)data;
+
+    lua_pushstring (interpreter, key);
+    lua_pushstring (interpreter, value);
+    lua_rawset (interpreter, -3);
+}
+
+/*
+ * weechat_lua_pushhashtable: put a WeeChat hashtable on lua stack, as lua table
+ */
+
+void
+weechat_lua_pushhashtable (lua_State *interpreter, struct t_hashtable *hashtable)
+{
+    lua_newtable (interpreter);
+
+    weechat_hashtable_map_string (hashtable,
+                                  &weechat_lua_hashtable_map_cb,
+                                  interpreter);
+}
+
+/*
+ * weechat_lua_hash_to_hashtable: get WeeChat hashtable with lua hash (on stack)
+ *                                Hashtable returned has type string for
+ *                                both keys and values
+ *                                Note: hashtable has to be released after use
+ *                                with call to weechat_hashtable_free()
+ */
+
+struct t_hashtable *
+weechat_lua_tohashtable (lua_State *interpreter, int index, int hashtable_size)
+{
+    struct t_hashtable *hashtable;
+
+    hashtable = weechat_hashtable_new (hashtable_size,
+                                       WEECHAT_HASHTABLE_STRING,
+                                       WEECHAT_HASHTABLE_STRING,
+                                       NULL,
+                                       NULL);
+    if (!hashtable)
+        return NULL;
+
+    lua_pushnil (interpreter);
+    while (lua_next (interpreter, index - 1) != 0)
+    {
+        weechat_hashtable_set (hashtable,
+                               lua_tostring (interpreter, -2),
+                               lua_tostring (interpreter, -1));
+        /* remove value from stack (keep key for next iteration) */
+        lua_pop (interpreter, 1);
+    }
+
+    return hashtable;
+}
+
+/*
+ * weechat_lua_exec: execute a lua function
+ */
+
+void *
+weechat_lua_exec (struct t_plugin_script *script, int ret_type,
+                  const char *function,
+                  const char *format, void **argv)
+{
+    void *ret_value;
+    int argc, i, *ret_i;
+    lua_State *old_lua_current_interpreter;
+    struct t_plugin_script *old_lua_current_script;
+
+    old_lua_current_interpreter = lua_current_interpreter;
+    lua_current_interpreter = script->interpreter;
+
+    lua_getglobal (lua_current_interpreter, function);
+
+    old_lua_current_script = lua_current_script;
+    lua_current_script = script;
+
+    argc = 0;
+    if (format && format[0])
+    {
+        argc = strlen (format);
+        for (i = 0; i < argc; i++)
+        {
+            switch (format[i])
+            {
+                case 's': /* string */
+                    lua_pushstring (lua_current_interpreter, (char *)argv[i]);
+                    break;
+                case 'i': /* integer */
+                    lua_pushnumber (lua_current_interpreter, *((int *)argv[i]));
+                    break;
+                case 'h': /* hash */
+                    weechat_lua_pushhashtable (lua_current_interpreter, (struct t_hashtable *)argv[i]);
+                    break;
+            }
+        }
+    }
+
+    if (lua_pcall (lua_current_interpreter, argc, 1, 0) != 0)
+    {
+        weechat_printf (NULL,
+                        weechat_gettext ("%s%s: unable to run function \"%s\""),
+                        weechat_prefix ("error"), LUA_PLUGIN_NAME, function);
+        weechat_printf (NULL,
+                        weechat_gettext ("%s%s: error: %s"),
+                        weechat_prefix ("error"), LUA_PLUGIN_NAME,
+                        lua_tostring (lua_current_interpreter, -1));
+        lua_current_script = old_lua_current_script;
+        lua_current_interpreter = old_lua_current_interpreter;
+        return NULL;
+    }
+
+    if (ret_type == WEECHAT_SCRIPT_EXEC_STRING)
+        ret_value = strdup ((char *) lua_tostring (lua_current_interpreter, -1));
+    else if (ret_type == WEECHAT_SCRIPT_EXEC_INT)
+    {
+        ret_i = malloc (sizeof (*ret_i));
+        if (ret_i)
+            *ret_i = lua_tonumber (lua_current_interpreter, -1);
+        ret_value = ret_i;
+    }
+    else if (ret_type == WEECHAT_SCRIPT_EXEC_HASHTABLE)
+    {
+        ret_value = weechat_lua_tohashtable (lua_current_interpreter, -1,
+                                             WEECHAT_SCRIPT_HASHTABLE_DEFAULT_SIZE);
+    }
+    else
+    {
+        WEECHAT_SCRIPT_MSG_WRONG_ARGS(LUA_CURRENT_SCRIPT_NAME, function);
+        lua_current_script = old_lua_current_script;
+        lua_current_interpreter = old_lua_current_interpreter;
+        return NULL;
+    }
+
+    lua_current_script = old_lua_current_script;
+    lua_current_interpreter = old_lua_current_interpreter;
+
+    return ret_value;
+}
+
+/*
+ * weechat_lua_register_lib: register a library to use inside Lua script
+ */
+
+void weechat_lua_register_lib (lua_State *L, const char *libname,
+                               const luaL_Reg *l)
+{
+#if LUA_VERSION_NUM >= 502
+    if (libname)
+    {
+        lua_newtable (L);
+        luaL_setfuncs (L, l, 0);
+        lua_pushvalue (L, -1);
+        lua_setglobal (L, libname);
+    }
+    else
+        luaL_setfuncs (L, l, 0);
+#else
+    luaL_register (L, libname, l);
+#endif
+}
+
+/*
+ * weechat_lua_load: load a Lua script
+ */
+
+int
+weechat_lua_load (const char *filename)
+{
+    FILE *fp;
+    char *weechat_lua_code = {
+        "weechat_outputs = {\n"
+        "    write = function (self, str)\n"
+        "        weechat.print(\"\", \"lua: stdout/stderr: \" .. str)\n"
+        "    end\n"
+        "}\n"
+        "io.stdout = weechat_outputs\n"
+        "io.stderr = weechat_outputs\n"
+    };
+
+    if ((fp = fopen (filename, "r")) == NULL)
+    {
+        weechat_printf (NULL,
+                        weechat_gettext ("%s%s: script \"%s\" not found"),
+                        weechat_prefix ("error"), LUA_PLUGIN_NAME, filename);
+        return 0;
+    }
+
+    if ((weechat_lua_plugin->debug >= 2) || !lua_quiet)
+    {
+        weechat_printf (NULL,
+                        weechat_gettext ("%s: loading script \"%s\""),
+                        LUA_PLUGIN_NAME, filename);
+    }
+
+    lua_current_script = NULL;
+    lua_registered_script = NULL;
+
+    lua_current_interpreter = luaL_newstate();
+
+    if (lua_current_interpreter == NULL)
+    {
+        weechat_printf (NULL,
+                        weechat_gettext ("%s%s: unable to create new "
+                                         "sub-interpreter"),
+                        weechat_prefix ("error"), LUA_PLUGIN_NAME);
+        fclose (fp);
+        return 0;
+    }
+
+#ifdef LUA_VERSION_NUM /* LUA_VERSION_NUM is defined only in lua >= 5.1.0 */
+    luaL_openlibs (lua_current_interpreter);
+#else
+    luaopen_base (lua_current_interpreter);
+    luaopen_string (lua_current_interpreter);
+    luaopen_table (lua_current_interpreter);
+    luaopen_math (lua_current_interpreter);
+    luaopen_io (lua_current_interpreter);
+    luaopen_debug (lua_current_interpreter);
+#endif
+
+    weechat_lua_register_lib (lua_current_interpreter, "weechat", weechat_lua_api_funcs);
+
+#ifdef LUA_VERSION_NUM
+    if (luaL_dostring (lua_current_interpreter, weechat_lua_code) != 0)
+#else
+    if (lua_dostring (lua_current_interpreter, weechat_lua_code) != 0)
+#endif
+    {
+        weechat_printf (NULL,
+                        weechat_gettext ("%s%s: unable to redirect stdout "
+                                         "and stderr"),
+                        weechat_prefix ("error"), LUA_PLUGIN_NAME);
+    }
+
+    lua_current_script_filename = filename;
+
+    if (luaL_loadfile (lua_current_interpreter, filename) != 0)
+    {
+        weechat_printf (NULL,
+                        weechat_gettext ("%s%s: unable to load file \"%s\""),
+                        weechat_prefix ("error"), LUA_PLUGIN_NAME, filename);
+        weechat_printf (NULL,
+                        weechat_gettext ("%s%s: error: %s"),
+                        weechat_prefix ("error"), LUA_PLUGIN_NAME,
+                        lua_tostring (lua_current_interpreter, -1));
+        lua_close (lua_current_interpreter);
+        fclose (fp);
+        return 0;
+    }
+
+    if (lua_pcall (lua_current_interpreter, 0, 0, 0) != 0)
+    {
+        weechat_printf (NULL,
+                        weechat_gettext ("%s%s: unable to execute file "
+                                         "\"%s\""),
+                        weechat_prefix ("error"), LUA_PLUGIN_NAME, filename);
+        weechat_printf (NULL,
+                        weechat_gettext ("%s%s: error: %s"),
+                        weechat_prefix ("error"), LUA_PLUGIN_NAME,
+                        lua_tostring (lua_current_interpreter, -1));
+        lua_close (lua_current_interpreter);
+        fclose (fp);
+
+        /* if script was registered, remove it from list */
+        if (lua_current_script)
+        {
+            plugin_script_remove (weechat_lua_plugin, &lua_scripts, &last_lua_script,
+                                  lua_current_script);
+        }
+
+        return 0;
+    }
+    fclose (fp);
+
+    if (!lua_registered_script)
+    {
+        weechat_printf (NULL,
+                        weechat_gettext ("%s%s: function \"register\" not "
+                                         "found (or failed) in file \"%s\""),
+                        weechat_prefix ("error"), LUA_PLUGIN_NAME, filename);
+        lua_close (lua_current_interpreter);
+        return 0;
+    }
+    lua_current_script = lua_registered_script;
+
+    lua_current_script->interpreter = (lua_State *) lua_current_interpreter;
+
+    /*
+     * set input/close callbacks for buffers created by this script
+     * (to restore callbacks after upgrade)
+     */
+    plugin_script_set_buffer_callbacks (weechat_lua_plugin,
+                                        lua_scripts,
+                                        lua_current_script,
+                                        &weechat_lua_api_buffer_input_data_cb,
+                                        &weechat_lua_api_buffer_close_cb);
+
+    return 1;
+}
+
+/*
+ * weechat_lua_load_cb: callback for weechat_script_auto_load() function
+ */
+
+void
+weechat_lua_load_cb (void *data, const char *filename)
+{
+    /* make C compiler happy */
+    (void) data;
+
+    weechat_lua_load (filename);
+}
+
+/*
+ * weechat_lua_unload: unload a Lua script
+ */
+
+void
+weechat_lua_unload (struct t_plugin_script *script)
+{
+    int *rc;
+    void *interpreter;
+
+    if ((weechat_lua_plugin->debug >= 2) || !lua_quiet)
+    {
+        weechat_printf (NULL,
+                        weechat_gettext ("%s: unloading script \"%s\""),
+                        LUA_PLUGIN_NAME, script->name);
+    }
+
+    if (script->shutdown_func && script->shutdown_func[0])
+    {
+        rc = (int *)weechat_lua_exec (script,
+                                      WEECHAT_SCRIPT_EXEC_INT,
+                                      script->shutdown_func,
+                                      NULL, NULL);
+        if (rc)
+            free (rc);
+    }
+
+    interpreter = script->interpreter;
+
+    if (lua_current_script == script)
+        lua_current_script = (lua_current_script->prev_script) ?
+            lua_current_script->prev_script : lua_current_script->next_script;
+
+    plugin_script_remove (weechat_lua_plugin, &lua_scripts, &last_lua_script, script);
+
+    if (interpreter)
+        lua_close (interpreter);
+}
+
+/*
+ * weechat_lua_unload_name: unload a Lua script by name
+ */
+
+void
+weechat_lua_unload_name (const char *name)
+{
+    struct t_plugin_script *ptr_script;
+
+    ptr_script = plugin_script_search (weechat_lua_plugin, lua_scripts, name);
+    if (ptr_script)
+    {
+        weechat_lua_unload (ptr_script);
+        weechat_printf (NULL,
+                        weechat_gettext ("%s: script \"%s\" unloaded"),
+                        LUA_PLUGIN_NAME, name);
+    }
+    else
+    {
+        weechat_printf (NULL,
+                        weechat_gettext ("%s%s: script \"%s\" not loaded"),
+                        weechat_prefix ("error"), LUA_PLUGIN_NAME, name);
+    }
+}
+
+/*
+ * weechat_lua_reload_name: reload a Lua script by name
+ */
+
+void
+weechat_lua_reload_name (const char *name)
+{
+    struct t_plugin_script *ptr_script;
+    char *filename;
+
+    ptr_script = plugin_script_search (weechat_lua_plugin, lua_scripts, name);
+    if (ptr_script)
+    {
+        filename = strdup (ptr_script->filename);
+        if (filename)
+        {
+            weechat_lua_unload (ptr_script);
+            weechat_printf (NULL,
+                            weechat_gettext ("%s: script \"%s\" unloaded"),
+                            LUA_PLUGIN_NAME, name);
+            weechat_lua_load (filename);
+            free (filename);
+        }
+    }
+    else
+    {
+        weechat_printf (NULL,
+                        weechat_gettext ("%s%s: script \"%s\" not loaded"),
+                        weechat_prefix ("error"), LUA_PLUGIN_NAME, name);
+    }
+}
+
+/*
+ * weechat_lua_unload_all: unload all Lua scripts
+ */
+
+void
+weechat_lua_unload_all ()
+{
+    while (lua_scripts)
+    {
+        weechat_lua_unload (lua_scripts);
+    }
+}
+
+/*
+ * weechat_lua_command_cb: callback for "/lua" command
+ */
+
+int
+weechat_lua_command_cb (void *data, struct t_gui_buffer *buffer,
+                        int argc, char **argv, char **argv_eol)
+{
+    char *path_script;
+
+    /* make C compiler happy */
+    (void) data;
+    (void) buffer;
+
+    if (argc == 1)
+    {
+        plugin_script_display_list (weechat_lua_plugin, lua_scripts,
+                                    NULL, 0);
+    }
+    else if (argc == 2)
+    {
+        if (weechat_strcasecmp (argv[1], "list") == 0)
+        {
+            plugin_script_display_list (weechat_lua_plugin, lua_scripts,
+                                        NULL, 0);
+        }
+        else if (weechat_strcasecmp (argv[1], "listfull") == 0)
+        {
+            plugin_script_display_list (weechat_lua_plugin, lua_scripts,
+                                        NULL, 1);
+        }
+        else if (weechat_strcasecmp (argv[1], "autoload") == 0)
+        {
+            plugin_script_auto_load (weechat_lua_plugin, &weechat_lua_load_cb);
+        }
+        else if (weechat_strcasecmp (argv[1], "reload") == 0)
+        {
+            weechat_lua_unload_all ();
+            plugin_script_auto_load (weechat_lua_plugin, &weechat_lua_load_cb);
+        }
+        else if (weechat_strcasecmp (argv[1], "unload") == 0)
+        {
+            weechat_lua_unload_all ();
+        }
+    }
+    else
+    {
+        if (weechat_strcasecmp (argv[1], "list") == 0)
+        {
+            plugin_script_display_list (weechat_lua_plugin, lua_scripts,
+                                        argv_eol[2], 0);
+        }
+        else if (weechat_strcasecmp (argv[1], "listfull") == 0)
+        {
+            plugin_script_display_list (weechat_lua_plugin, lua_scripts,
+                                        argv_eol[2], 1);
+        }
+        else if (weechat_strcasecmp (argv[1], "load") == 0)
+        {
+            /* load Lua script */
+            path_script = plugin_script_search_path (weechat_lua_plugin,
+                                                     argv_eol[2]);
+            weechat_lua_load ((path_script) ? path_script : argv_eol[2]);
+            if (path_script)
+                free (path_script);
+        }
+        else if (weechat_strcasecmp (argv[1], "reload") == 0)
+        {
+            /* reload one Lua script */
+            weechat_lua_reload_name (argv_eol[2]);
+        }
+        else if (weechat_strcasecmp (argv[1], "unload") == 0)
+        {
+            /* unload Lua script */
+            weechat_lua_unload_name (argv_eol[2]);
+        }
+        else
+        {
+            weechat_printf (NULL,
+                            weechat_gettext ("%s%s: unknown option for "
+                                             "command \"%s\""),
+                            weechat_prefix ("error"), LUA_PLUGIN_NAME, "lua");
+        }
+    }
+
+    return WEECHAT_RC_OK;
+}
+
+/*
+ * weechat_lua_completion_cb: callback for script completion
+ */
+
+int
+weechat_lua_completion_cb (void *data, const char *completion_item,
+                           struct t_gui_buffer *buffer,
+                           struct t_gui_completion *completion)
+{
+    /* make C compiler happy */
+    (void) data;
+    (void) completion_item;
+    (void) buffer;
+
+    plugin_script_completion (weechat_lua_plugin, completion, lua_scripts);
+
+    return WEECHAT_RC_OK;
+}
+
+/*
+ * weechat_lua_infolist_cb: callback for infolist
+ */
+
+struct t_infolist *
+weechat_lua_infolist_cb (void *data, const char *infolist_name,
+                         void *pointer, const char *arguments)
+{
+    /* make C compiler happy */
+    (void) data;
+
+    if (!infolist_name || !infolist_name[0])
+        return NULL;
+
+    if (weechat_strcasecmp (infolist_name, "lua_script") == 0)
+    {
+        return plugin_script_infolist_list_scripts (weechat_lua_plugin,
+                                                    lua_scripts, pointer,
+                                                    arguments);
+    }
+
+    return NULL;
+}
+
+/*
+ * weechat_lua_signal_debug_dump_cb: dump Lua plugin data in WeeChat log file
+ */
+
+int
+weechat_lua_signal_debug_dump_cb (void *data, const char *signal,
+                                  const char *type_data, void *signal_data)
+{
+    /* make C compiler happy */
+    (void) data;
+    (void) signal;
+    (void) type_data;
+
+    if (!signal_data
+        || (weechat_strcasecmp ((char *)signal_data, LUA_PLUGIN_NAME) == 0))
+    {
+        plugin_script_print_log (weechat_lua_plugin, lua_scripts);
+    }
+
+    return WEECHAT_RC_OK;
+}
+
+/*
+ * weechat_lua_signal_buffer_closed_cb: callback called when a buffer is closed
+ */
+
+int
+weechat_lua_signal_buffer_closed_cb (void *data, const char *signal,
+                                     const char *type_data, void *signal_data)
+{
+    /* make C compiler happy */
+    (void) data;
+    (void) signal;
+    (void) type_data;
+
+    if (signal_data)
+        plugin_script_remove_buffer_callbacks (lua_scripts, signal_data);
+
+    return WEECHAT_RC_OK;
+}
+
+/*
+ * weechat_lua_timer_action_cb: timer for executing actions
+ */
+
+int
+weechat_lua_timer_action_cb (void *data, int remaining_calls)
+{
+    /* make C compiler happy */
+    (void) remaining_calls;
+
+    if (data)
+    {
+        if (data == &lua_action_install_list)
+        {
+            plugin_script_action_install (weechat_lua_plugin,
+                                          lua_scripts,
+                                          &weechat_lua_unload,
+                                          &weechat_lua_load,
+                                          &lua_action_install_list);
+        }
+        else if (data == &lua_action_remove_list)
+        {
+            plugin_script_action_remove (weechat_lua_plugin,
+                                         lua_scripts,
+                                         &weechat_lua_unload,
+                                         &lua_action_remove_list);
+        }
+    }
+
+    return WEECHAT_RC_OK;
+}
+
+/*
+ * weechat_lua_signal_script_action_cb: callback called when a script action
+ *                                      is asked (install/remove a script)
+ */
+
+int
+weechat_lua_signal_script_action_cb (void *data, const char *signal,
+                                     const char *type_data,
+                                     void *signal_data)
+{
+    /* make C compiler happy */
+    (void) data;
+
+    if (strcmp (type_data, WEECHAT_HOOK_SIGNAL_STRING) == 0)
+    {
+        if (strcmp (signal, "lua_script_install") == 0)
+        {
+            plugin_script_action_add (&lua_action_install_list,
+                                      (const char *)signal_data);
+            weechat_hook_timer (1, 0, 1,
+                                &weechat_lua_timer_action_cb,
+                                &lua_action_install_list);
+        }
+        else if (strcmp (signal, "lua_script_remove") == 0)
+        {
+            plugin_script_action_add (&lua_action_remove_list,
+                                      (const char *)signal_data);
+            weechat_hook_timer (1, 0, 1,
+                                &weechat_lua_timer_action_cb,
+                                &lua_action_remove_list);
+        }
+    }
+
+    return WEECHAT_RC_OK;
+}
+
+/*
+ * weechat_plugin_init: initialize Lua plugin
+ */
+
+int
+weechat_plugin_init (struct t_weechat_plugin *plugin, int argc, char *argv[])
+{
+    struct t_plugin_script_init init;
+
+    weechat_lua_plugin = plugin;
+
+    init.callback_command = &weechat_lua_command_cb;
+    init.callback_completion = &weechat_lua_completion_cb;
+    init.callback_infolist = &weechat_lua_infolist_cb;
+    init.callback_signal_debug_dump = &weechat_lua_signal_debug_dump_cb;
+    init.callback_signal_buffer_closed = &weechat_lua_signal_buffer_closed_cb;
+    init.callback_signal_script_action = &weechat_lua_signal_script_action_cb;
+    init.callback_load_file = &weechat_lua_load_cb;
+
+    lua_quiet = 1;
+    plugin_script_init (weechat_lua_plugin, argc, argv, &init);
+    lua_quiet = 0;
+
+    plugin_script_display_short_list (weechat_lua_plugin,
+                                      lua_scripts);
+
+    /* init ok */
+    return WEECHAT_RC_OK;
+}
+
+/*
+ * weechat_plugin_end: shutdown Lua interface
+ */
+
+int
+weechat_plugin_end (struct t_weechat_plugin *plugin)
+{
+    /* unload all scripts */
+    lua_quiet = 1;
+    plugin_script_end (plugin, &lua_scripts, &weechat_lua_unload_all);
+    lua_quiet = 0;
+
+    return WEECHAT_RC_OK;
+}

src/plugins/lua/weechat-lua.h

@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2006-2007 Emmanuel Bouthenot <kolter@openics.org>
+ * Copyright (C) 2006-2012 Sebastien Helleu <flashcode@flashtux.org>
+ *
+ * This file is part of WeeChat, the extensible chat client.
+ *
+ * WeeChat is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * WeeChat is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with WeeChat.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __WEECHAT_LUA_H
+#define __WEECHAT_LUA_H 1
+
+#define weechat_plugin weechat_lua_plugin
+#define LUA_PLUGIN_NAME "lua"
+
+#define LUA_CURRENT_SCRIPT_NAME ((lua_current_script) ? lua_current_script->name : "-")
+
+extern struct t_weechat_plugin *weechat_lua_plugin;
+
+extern int lua_quiet;
+extern struct t_plugin_script *lua_scripts;
+extern struct t_plugin_script *last_lua_script;
+extern struct t_plugin_script *lua_current_script;
+extern struct t_plugin_script *lua_registered_script;
+extern const char *lua_current_script_filename;
+extern lua_State *lua_current_interpreter;
+
+extern void weechat_lua_pushhashtable (lua_State *interpreter,
+                                       struct t_hashtable *hashtable);
+extern struct t_hashtable *weechat_lua_tohashtable (lua_State *interpreter,
+                                                    int index,
+                                                    int hashtable_size);
+extern void *weechat_lua_exec (struct t_plugin_script *script, int ret_type,
+                               const char *function,
+                               const char *format, void **argv);
+extern void weechat_lua_register_lib(lua_State *L, const char *libname,
+                                     const luaL_Reg *l);
+
+#endif /* __WEECHAT_LUA_H */