Hello,
I've created an integrated developer environment for ESP32 based on the one created by pfalcon for esp8266. This is positioned as a two-command-to-deploy solution. You need to clone and make, the rest is done by the build procedure.
The environment has C++/STL support tested with SGI STL tests ported to ESP32. ALl are compiled and ran successfully.
You can find it herehttps://github.com/Sermus/esp-open-sdk