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klish/plugins/lua/lua_init.c

86 lines
1.7 KiB

#include <dirent.h>
#include <stdlib.h>
#include <string.h>
#include <lub/string.h>
#include "private.h"
char *scripts_path = NULL;
static bool_t
load_scripts(lua_State *L, char *path)
{
struct dirent *entry;
DIR *dir = opendir(path);
bool_t result = BOOL_FALSE;
int res = 0;
const char *ext_lua = ".lua";
const char *ext_bin = ".bin";
if (!dir) {
printf("%s: Failed to open '%s' directory\n", __func__, path);
return BOOL_FALSE;
}
for (entry = readdir(dir); entry; entry = readdir(dir)) {
const char *extension = strrchr(entry->d_name, '.');
/* check the filename */
if ((extension) &&
((!strcmp(ext_lua, extension)) ||
(!strcmp(ext_bin, extension)))) {
char *filename = NULL;
lub_string_cat(&filename, path);
lub_string_cat(&filename, "/");
lub_string_cat(&filename, entry->d_name);
result = BOOL_FALSE;
if ((res = luaL_loadfile(L, filename))) {
l_print_error(L, __func__, "load", res);
} else if ((res = lua_pcall(L, 0, 0, 0))) {
l_print_error(L, __func__, "exec", res);
} else
result = BOOL_TRUE;
lub_string_free(filename);
/* Shouldn't happen, but we can't be too sure ;-) */
while(lua_gettop(L))
lua_pop(L, 1);
if (!result)
break;
}
}
closedir(dir);
return result;
}
int clish_plugin_init_lua(clish_shell_t *shell)
{
lua_State *L = NULL;
if (!(L = luaL_newstate())) {
printf("%s: Failed to instantiate Lua interpreter\n", __func__);
return (-1);
}
luaL_openlibs(L);
if (scripts_path && !load_scripts(L, scripts_path)) {
lub_string_free(scripts_path);
return (-1);
}
lub_string_free(scripts_path);
clish_shell__set_udata(shell, LUA_UDATA, L);
lua_pushlightuserdata(L, shell);
lua_setglobal(L, "clish_shell");
return (0);
}