feat(CI): prevent PRs that cause DB errors to get on master

.travis.yml

@@ -44,3 +44,5 @@ install:
 script:
   # compile
   - bash ./acore.sh "compiler" "all"
+  - git clone --depth=1 --single-branch https://github.com/ac-data/ac-data.git .env/dist
+  - ./env/dist/bin/worldserver --dry-run

src/common/Configuration/Config.h

@@ -46,7 +46,12 @@ class ConfigMgr
 
     std::list<std::string> GetKeysByString(std::string const& name);
 
+    bool isDryRun() { return this->dryRun; }
+    void setDryRun(bool mode) { this->dryRun = mode; }
+
 private:
+    bool dryRun = false;
+
     bool GetValueHelper(const char* name, ACE_TString &result);
     bool LoadData(char const* file);
 

src/server/game/World/World.cpp

@@ -1350,18 +1350,21 @@ void World::SetInitialWorldSettings()
     ///- Init highest guids before any table loading to prevent using not initialized guids in some code.
     sObjectMgr->SetHighestGuids();
 
-    ///- Check the existence of the map files for all races' startup areas.
-    if (!MapManager::ExistMapAndVMap(0, -6240.32f, 331.033f)
-        || !MapManager::ExistMapAndVMap(0, -8949.95f, -132.493f)
-        || !MapManager::ExistMapAndVMap(1, -618.518f, -4251.67f)
-        || !MapManager::ExistMapAndVMap(0, 1676.35f, 1677.45f)
-        || !MapManager::ExistMapAndVMap(1, 10311.3f, 832.463f)
-        || !MapManager::ExistMapAndVMap(1, -2917.58f, -257.98f)
-        || (m_int_configs[CONFIG_EXPANSION] && (
-            !MapManager::ExistMapAndVMap(530, 10349.6f, -6357.29f) ||
-            !MapManager::ExistMapAndVMap(530, -3961.64f, -13931.2f))))
-    {
-        exit(1);
+    if (!sConfigMgr->isDryRun())
+    {
+        ///- Check the existence of the map files for all races' startup areas.
+        if (!MapManager::ExistMapAndVMap(0, -6240.32f, 331.033f)
+            || !MapManager::ExistMapAndVMap(0, -8949.95f, -132.493f)
+            || !MapManager::ExistMapAndVMap(1, -618.518f, -4251.67f)
+            || !MapManager::ExistMapAndVMap(0, 1676.35f, 1677.45f)
+            || !MapManager::ExistMapAndVMap(1, 10311.3f, 832.463f)
+            || !MapManager::ExistMapAndVMap(1, -2917.58f, -257.98f)
+            || (m_int_configs[CONFIG_EXPANSION] && (
+                !MapManager::ExistMapAndVMap(530, 10349.6f, -6357.29f) ||
+                !MapManager::ExistMapAndVMap(530, -3961.64f, -13931.2f))))
+        {
+            exit(1);
+        }
     }
 
     ///- Initialize pool manager
@@ -1952,6 +1955,11 @@ void World::SetInitialWorldSettings()
         sLog->outString("Enabling database logging...");
         sLog->SetLogDB(true);
     }
+
+    if (sConfigMgr->isDryRun()) {
+        sLog->outString("AzerothCore dry run completed, terminating.");
+        exit(0);
+    }
 }
 
 void World::DetectDBCLang()

src/server/worldserver/Main.cpp

@@ -65,6 +65,11 @@ extern int main(int argc, char** argv)
     int c = 1;
     while (c < argc)
     {
+        if (strcmp(argv[c], "--dry-run") == 0)
+        {
+            sConfigMgr->setDryRun(true);
+        }
+
         if (!strcmp(argv[c], "-c"))
         {
             if (++c >= argc)