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feat: add GetAddOnMetadata for reading TOC directives from Lua

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Implement GetAddOnMetadata(addonNameOrIndex, key) which reads arbitrary
TOC file directives. All directives are now stored in the addon info
registry table under a "metadata" sub-table.

This enables addons to read their own version, author, X-* custom
fields, and other TOC metadata at runtime. Used by addon managers,
version checkers, and self-updating addons.
This commit is contained in:
Kelsi 2026-03-21 05:13:28 -07:00
parent d4c1eda22b
commit 82d3abe5da
1 changed files with 39 additions and 0 deletions
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39
src/addons/lua_engine.cpp
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@ -600,6 +600,37 @@ static int lua_GetAddOnInfo(lua_State* L) {
return 5;
}
// GetAddOnMetadata(addonNameOrIndex, key) → value
static int lua_GetAddOnMetadata(lua_State* L) {
lua_getfield(L, LUA_REGISTRYINDEX, "wowee_addon_info");
if (!lua_istable(L, -1)) { lua_pop(L, 1); lua_pushnil(L); return 1; }
int idx = 0;
if (lua_isnumber(L, 1)) {
idx = static_cast<int>(lua_tonumber(L, 1));
} else if (lua_isstring(L, 1)) {
const char* name = lua_tostring(L, 1);
int count = static_cast<int>(lua_objlen(L, -1));
for (int i = 1; i <= count; i++) {
lua_rawgeti(L, -1, i);
lua_getfield(L, -1, "name");
const char* aName = lua_tostring(L, -1);
lua_pop(L, 1);
if (aName && strcmp(aName, name) == 0) { idx = i; lua_pop(L, 1); break; }
lua_pop(L, 1);
}
}
if (idx < 1) { lua_pop(L, 1); lua_pushnil(L); return 1; }
const char* key = luaL_checkstring(L, 2);
lua_rawgeti(L, -1, idx);
if (!lua_istable(L, -1)) { lua_pop(L, 2); lua_pushnil(L); return 1; }
lua_getfield(L, -1, "metadata");
if (!lua_istable(L, -1)) { lua_pop(L, 3); lua_pushnil(L); return 1; }
lua_getfield(L, -1, key);
return 1;
}
// UnitBuff(unitId, index) / UnitDebuff(unitId, index)
// Returns: name, rank, icon, count, debuffType, duration, expirationTime, caster, isStealable, shouldConsolidate, spellId
static int lua_UnitAura(lua_State* L, bool wantBuff) {
@ -3081,6 +3112,7 @@ void LuaEngine::registerCoreAPI() {
{"UnitAura", lua_UnitAuraGeneric},
{"GetNumAddOns", lua_GetNumAddOns},
{"GetAddOnInfo", lua_GetAddOnInfo},
{"GetAddOnMetadata", lua_GetAddOnMetadata},
{"GetSpellInfo", lua_GetSpellInfo},
{"GetSpellTexture", lua_GetSpellTexture},
{"GetItemInfo", lua_GetItemInfo},
@ -3995,6 +4027,13 @@ void LuaEngine::setAddonList(const std::vector<TocFile>& addons) {
auto notesIt = addons[i].directives.find("Notes");
lua_pushstring(L_, notesIt != addons[i].directives.end() ? notesIt->second.c_str() : "");
lua_setfield(L_, -2, "notes");
// Store all TOC directives for GetAddOnMetadata
lua_newtable(L_);
for (const auto& [key, val] : addons[i].directives) {
lua_pushstring(L_, val.c_str());
lua_setfield(L_, -2, key.c_str());
}
lua_setfield(L_, -2, "metadata");
lua_rawseti(L_, -2, static_cast<int>(i + 1));
}
lua_setfield(L_, LUA_REGISTRYINDEX, "wowee_addon_info");