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/* Copyright (C) 2018 Wildfire Games.
* This file is part of 0 A.D.
*
* 0 A.D. 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 2 of the License, or
* (at your option) any later version.
*
* 0 A.D. 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 0 A.D. If not, see <http://www.gnu.org/licenses/>.
*/
#include "precompiled.h"
#include "ps/Mod.h"
#include <algorithm>
#include "lib/file/file_system.h"
#include "lib/file/vfs/vfs.h"
#include "lib/utf8.h"
#include "ps/Filesystem.h"
#include "ps/GameSetup/GameSetup.h"
#include "ps/GameSetup/Paths.h"
#include "scriptinterface/ScriptInterface.h"
#include "scriptinterface/ScriptRuntime.h"
std::vector<CStr> g_modsLoaded;
std::vector<std::vector<CStr>> g_LoadedModVersions;
CmdLineArgs g_args;
JS::Value Mod::GetAvailableMods(const ScriptInterface& scriptInterface)
{
JSContext* cx = scriptInterface.GetContext();
JSAutoRequest rq(cx);
JS::RootedObject obj(cx, JS_NewPlainObject(cx));
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();
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);
}
void Mod::CacheEnabledModVersions(const shared_ptr<ScriptRuntime>& scriptRuntime)
{
ScriptInterface scriptInterface("Engine", "CacheEnabledModVersions", scriptRuntime);
JSContext* cx = scriptInterface.GetContext();
JSAutoRequest rq(cx);
JS::RootedValue availableMods(cx, GetAvailableMods(scriptInterface));
g_LoadedModVersions.clear();
for (const CStr& mod : g_modsLoaded)
{
// Ignore user and mod mod as they are irrelevant for compatibility checks
if (mod == "mod" || mod == "user")
continue;
CStr version;
JS::RootedValue modData(cx);
if (scriptInterface.GetProperty(availableMods, mod.c_str(), &modData))
scriptInterface.GetProperty(modData, "version", version);
g_LoadedModVersions.push_back({mod, version});
}
}
JS::Value Mod::GetLoadedModsWithVersions(const ScriptInterface& scriptInterface)
{
JSContext* cx = scriptInterface.GetContext();
JSAutoRequest rq(cx);
JS::RootedValue returnValue(cx);
scriptInterface.ToJSVal(cx, &returnValue, g_LoadedModVersions);
return returnValue;
}
JS::Value Mod::GetEngineInfo(const ScriptInterface& scriptInterface)
{
JSContext* cx = scriptInterface.GetContext();
JSAutoRequest rq(cx);
JS::RootedValue metainfo(cx);
JS::RootedValue mods(cx, Mod::GetLoadedModsWithVersions(scriptInterface));
scriptInterface.Eval("({})", &metainfo);
scriptInterface.SetProperty(metainfo, "engine_version", std::string(engine_version));
scriptInterface.SetProperty(metainfo, "mods", mods);
scriptInterface.FreezeObject(metainfo, true);
return metainfo;
}
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