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Allow disabling lettered/numeric patch MPQs via env flags

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Kelsi 2026-02-12 15:58:42 -08:00
parent f5f757332a
commit ca287f1e82
1 changed files with 31 additions and 0 deletions
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31
src/pipeline/mpq_manager.cpp
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@ -2,6 +2,7 @@
#include "core/logger.hpp"
#include <algorithm>
#include <chrono>
#include <cstdlib>
#include <filesystem>
#include <fstream>
#include <sstream>
@ -39,6 +40,15 @@ std::string normalizeVirtualFilenameForLookup(std::string value) {
}
return value;
}
bool envFlagEnabled(const char* name) {
const char* v = std::getenv(name);
if (!v || !*v) {
return false;
}
std::string s = toLowerCopy(v);
return s == "1" || s == "true" || s == "yes" || s == "on";
}
}
MPQManager::MPQManager() = default;
@ -378,6 +388,16 @@ bool MPQManager::loadPatchArchives() {
return false;
#endif
const bool disableLetterPatches = envFlagEnabled("WOWEE_DISABLE_LETTER_PATCHES");
const bool disableNumericPatches = envFlagEnabled("WOWEE_DISABLE_NUMERIC_PATCHES");
if (disableLetterPatches) {
LOG_WARNING("MPQ letter patches disabled via WOWEE_DISABLE_LETTER_PATCHES=1");
}
if (disableNumericPatches) {
LOG_WARNING("MPQ numeric patches disabled via WOWEE_DISABLE_NUMERIC_PATCHES=1");
}
// WoW 3.3.5a patch archives (in order of priority, highest first)
std::vector<std::pair<std::string, int>> patchArchives = {
// Lettered patch MPQs are used by some clients/distributions (e.g. Patch-A.mpq..Patch-E.mpq).
@ -408,6 +428,17 @@ bool MPQManager::loadPatchArchives() {
int loadedPatches = 0;
for (const auto& [archive, priority] : patchArchives) {
const bool isLetterPatch =
(archive.size() >= 10) &&
(toLowerCopy(archive).rfind("patch-", 0) != 0) && // not patch-*.MPQ
(toLowerCopy(archive).rfind("patch.", 0) != 0); // not patch.MPQ
if (isLetterPatch && disableLetterPatches) {
continue;
}
if (!isLetterPatch && disableNumericPatches) {
continue;
}
std::string fullPath = dataPath + "/" + archive;
if (std::filesystem::exists(fullPath)) {
if (loadArchive(fullPath, priority)) {