cmConfigureLog: support writing array values

Source/cmConfigureLog.cxx

@@ -123,6 +123,26 @@ void cmConfigureLog::EndLine()
   this->Stream << std::endl;
 }
 
+void cmConfigureLog::BeginArray()
+{
+  ++this->Indent;
+}
+
+void cmConfigureLog::NextArrayElement()
+{
+  assert(this->Indent);
+  --this->Indent;
+  this->BeginLine() << '-';
+  this->EndLine();
+  ++this->Indent;
+}
+
+void cmConfigureLog::EndArray()
+{
+  assert(this->Indent);
+  --this->Indent;
+}
+
 void cmConfigureLog::BeginObject(cm::string_view key)
 {
   this->BeginLine() << key << ':';

Source/cmConfigureLog.h

@@ -34,6 +34,10 @@ public:
   void BeginEvent(std::string const& kind, cmMakefile const& mf);
   void EndEvent();
 
+  void BeginArray();
+  void NextArrayElement();
+  void EndArray();
+
   void BeginObject(cm::string_view key);
   void EndObject();