How to select sdkconfig.defaults per environment

1

I have a project where I would like to have a different platform io “environment” for different build types (like developement vs production).

The production version would have no console uart configured.

I have run menuconfig and have two different resulting sdkconfig files (sdkconfig.defaults.dev and sdkconfig.defaults.prod).

My CMakeLists.txt contains:

list(APPEND SDKCONFIG_DEFAULTS "sdkconfig.defaults.dev")

and everything works in the dev case. How can get platformio to tell cmake to use the other file?

The reason I want this is because other devs on the team derive/inherit their configs from what I am trying to provide. IOW, I have

[env:device-dev]
...
build_flags =

[env:device-prod]
...
build_flags = -DPRODUCTION

[env:alice]
extends = env:device-dev
upload_port = ...

[env:alice-prod]
extends = env:device-prod
upload_port = ...

(of course, the reason each dev needs their own env is because each esp32 device gets a unique /dev filename on a Mac)

Perfectly willing to accept that I’ve painted myself into a corner and there’s another way. Hit me!

Thanks for any pointers.

2

Hm, seems weird. PlatformIO automatically uses sdkconfig files based on the environment name in the platformio.ini, since I reported it in Make used sdkconfig file user-selectible · Issue #539 · platformio/platform-espressif32 · GitHub and Regenerate sdkconfig.<board> if missing · Issue #588 · platformio/platform-espressif32 · GitHub.

3

Yes, that’s true. However, in the absence of the file, it just pulls out the default from the bowels of esp-idf (which was no good to me) – thus the hack in CMakeLists.txt (which took me entirely too long to google/figure out).

I (thought that I) needed to provide a pattern where new dev could just create a new env entry in platformio.ini for themselves that inherits from a main config. The new twist is that now I have two different main configs that I want to inherit from.

Of course, I could just tell folks to manually copy the correct sdkconfig.defaults for their case but that seems clunky and it feels like this is a good time to sanity check my methods.

4

The current platform code should definitely support it that config files (when they’re regenerated because they are deleted) are pulled from the sdkconfig.defaults of the project, not ESP-IDF, if present.

But I also see that Updated sdkconfig files should trigger CMake to regenerate project · platformio/platform-espressif32@6379928 · GitHub is not taking into account that you might have different sdkconfig.defaults for each sub-environment. Try opening an issue in the linked repository for that.

1 Like
5

For the curious, I created sdkconfig.defaults per environment · Issue #638 · platformio/platform-espressif32 · GitHub

And big thanks to Max

6

I just updated the github issue with a solution that hopefully also works for you. Not fully platform.io-integrated, but does it’s job.