filsystem [Filesystem] folder list inside archive

[jmasclaux]

Hello,

I'm trying via filesystem api  to list all folder inside a folder ( non recursively ).

The code belove work when you list folder from a normal directory but, doesn't work on folder who are compressed.

std::vector<std::string> NQ::get_folder_list(const std::string& inDir)
{	
    std::vector<std::string> dirs;
  
    auto dir = Unigine::Dir::create();
    if (dir->open(inDir.c_str()))
    {
        int dirCount = dir->getNumDirs();
        for (int i = 0; i < dirCount; i++)
        {
            auto dirName = std::string(dir->getDirName(i));
            dirName.pop_back(); // remove last slash
  
            dirs.push_back(dirName);
  		}
	}
 }

Any clue ? 

Thanks.

[ded]

Hi jmasclaux,

Unfortunately, Unigine::Dir only provides access to plain system directories and can't help in traversing compressed packages.
There are Unigine::FileSystem::*Package*() methods for inspecting *.zip and *.ung archives under the data path.
You can find example of traversing system catalogs along with the compressed packages in the data/samples/samples.cpp file in your SDK.
This is a master script that displays a menu enlisting all available UnigineScript samples in the SDK.

[jmasclaux]

Hi 

I was pretty sure i'm gonna get this answer :) 

here i'm take this small part from another tread to get file list 

        // find package num
        int package_num = -1;
        for (int i = 0; i < Unigine::FileSystem::get()->getNumPackages(); i++)
        {
            NQ_INFO(GAME, "%1 == %2", packageName, Unigine::FileSystem::get()->getPackageName(i));
            if (packageName == Unigine::FileSystem::get()->getPackageName(i))
            {
                package_num = i;
                break;
            }
        }

        Unigine::Vector<Unigine::String> files;
        Unigine::FileSystem::get()->getPackageFileNames(package_num, files);

and it's work.

But before I made this code with normally the same result : 

        auto package = Unigine::FileSystem::get()->getPackage(packageName.c_str());
        if (package)
        {
            for(int i = 0; i < package->getNumFiles(); i++)
                dirs.push_back(package->getFileName(i));
        }

and it does not work.

I was thinking i'm not using the good filename so I wrote 

        auto packageT = Unigine::FileSystem::get()->getPackage(Unigine::FileSystem::get()->getPackageName(package_num));
        if (packageT)
        {
            for (int i = 0; i < packageT->getNumFiles(); i++)
                dirs.push_back(packageT->getFileName(i));
        }

And it does not work too.

I miss something ? 

PS at the start of the function I made :

Unigine::FileSystem::get()->loadPackage(packageName.c_str())

I'm on unigine 2.3.

 

Thank's

Edited August 22, 2017 by jmasclaux

[ded]

Aside from the packages that Unigine file system load automatically, you can manage an additional list of packages.
They are actually loaded upon file system initialization or "filesystem_reload" command, but the list can be manipulated at any time.
Unigine::FileSystem::getPackage and Unigine::FileSystem::addPackage (both are static methods) are related to this additional list.

Naming is a bit confusing, I agree.
In the engine source code these are referred as "extern packages".
I don't know why they had lost "extern" qualifier in their API naming, perhaps we should fix this.

What you need is Unigine::FileSystem::findPackage, it basically does the same thing as your first code snippet.