Function lua_dirlist

libraries/AP_Scripting/lua_bindings.cpp:857–883

directory listing, return table of files in a directory */

  directory listing, return table of files in a directory
 */
int lua_dirlist(lua_State *L) {
    binding_argcheck(L, 1);

    struct dirent *entry;
    int i;
    const char *path = luaL_checkstring(L, 1);
    
    /* open directory */
    auto dir = AP::FS().opendir(path);
    if (dir == nullptr) {  /* error opening the directory? */
        lua_pushnil(L);  /* return nil and ... */
        lua_pushstring(L, strerror(errno));  /* error message */
        return 2;  /* number of results */
    }
    
    /* create result table */
    lua_newtable(L);
    i = 1;
    while ((entry = AP::FS().readdir(dir)) != nullptr) {
        lua_pushnumber(L, i++);  /* push key */
        lua_pushstring(L, entry->d_name);  /* push value */
        lua_settable(L, -3);
    }
    
    AP::FS().closedir(dir);
    return 1;  /* table is already on top */
}

/*
  remove a file