Status DeleteDirectory(const OsPath& path)
{
// note: we have to recursively empty the directory before it can
// be deleted (required by Windows and POSIX rmdir()).
CFileInfos files; DirectoryNames subdirectoryNames;
RETURN_STATUS_IF_ERR(GetDirectoryEntries(path, &files, &subdirectoryNames));
// delete files
for(size_t i = 0; i < files.size(); i++)
{
const OsPath pathname = path / files[i].Name();
errno = 0;
if(wunlink(pathname) != 0)
WARN_RETURN(StatusFromErrno());
}
// recurse over subdirectoryNames
for(size_t i = 0; i < subdirectoryNames.size(); i++)
RETURN_STATUS_IF_ERR(DeleteDirectory(path / subdirectoryNames[i]));
errno = 0;
if(wrmdir(path) != 0)
WARN_RETURN(StatusFromErrno());
return INFO::OK;
}
void FileSystem::GetAllDirectoryEntries(const String& directoryName, std::vector<String>& entries) const
{
// получить (нерекурсивно) файлы и каталоги в заданном каталоге
size_t size1 = entries.size();
GetDirectoryEntries(directoryName, entries);
size_t size2 = entries.size();
// перебрать полученные файлы и каталоги
for(size_t i = size1; i < size2; ++i)
{
// получить файл
String& entry = entries[i];
// добавить к имени имя текущего каталога, чтобы сделать абсолютные имена
entry = directoryName + entry;
// если это каталог
if(entry.length() && entry[entry.length() - 1] == '/')
// рекурсивно получить файлы и каталоги в нём
// копия имени делается, так как ссылка может стать недействительной
GetAllDirectoryEntries(String(entry), entries);
}
}
/**
* Returns a JS object containing a listing of available mods that
* have a modname.json file in their modname folder. The returned
* object looks like { modname1: json1, modname2: json2, ... } where
* jsonN is the content of the modnameN/modnameN.json file as a JS
* object.
*
* @return JS object with available mods as the keys of the modname.json
* properties.
*/
JS::Value JSI_Mod::GetAvailableMods(ScriptInterface::CxPrivate* pCxPrivate)
{
ScriptInterface* scriptInterface = pCxPrivate->pScriptInterface;
JSContext* cx = scriptInterface->GetContext();
JSAutoRequest rq(cx);
JS::RootedObject obj(cx, JS_NewObject(cx, nullptr, JS::NullPtr(), JS::NullPtr()));
const Paths paths(g_args);
// loop over all possible paths
OsPath modPath = paths.RData()/"mods";
OsPath modUserPath = paths.UserData()/"mods";
DirectoryNames modDirs;
DirectoryNames modDirsUser;
GetDirectoryEntries(modPath, NULL, &modDirs);
// Sort modDirs so that we can do a fast lookup below
std::sort(modDirs.begin(), modDirs.end());
PIVFS vfs = CreateVfs(1); // No cache needed; TODO but 0 crashes
for (DirectoryNames::iterator iter = modDirs.begin(); iter != modDirs.end(); ++iter)
{
vfs->Clear();
if (vfs->Mount(L"", modPath / *iter, VFS_MOUNT_MUST_EXIST) < 0)
continue;
CVFSFile modinfo;
if (modinfo.Load(vfs, L"mod.json", false) != PSRETURN_OK)
continue;
JS::RootedValue json(cx);
if (!scriptInterface->ParseJSON(modinfo.GetAsString(), &json))
continue;
// Valid mod, add it to our structure
JS_SetProperty(cx, obj, utf8_from_wstring(iter->string()).c_str(), json);
}
GetDirectoryEntries(modUserPath, NULL, &modDirsUser);
bool dev = InDevelopmentCopy();
for (DirectoryNames::iterator iter = modDirsUser.begin(); iter != modDirsUser.end(); ++iter)
{
// If we are in a dev copy we do not mount mods in the user mod folder that
// are already present in the mod folder, thus we skip those here.
if (dev && std::binary_search(modDirs.begin(), modDirs.end(), *iter))
continue;
vfs->Clear();
if (vfs->Mount(L"", modUserPath / *iter, VFS_MOUNT_MUST_EXIST) < 0)
continue;
CVFSFile modinfo;
if (modinfo.Load(vfs, L"mod.json", false) != PSRETURN_OK)
continue;
JS::RootedValue json(cx);
if (!scriptInterface->ParseJSON(modinfo.GetAsString(), &json))
continue;
// Valid mod, add it to our structure
JS_SetProperty(cx, obj, utf8_from_wstring(iter->string()).c_str(), json);
}
return JS::ObjectValue(*obj);
}
