Pure CMake component dependencies (IDFGH-13050) (PACMAN-932)

[malachib]

Answers checklist.

• I have read the documentation ESP-IDF Programming Guide and the issue is not addressed there.
• I have updated my IDF branch (master or release) to the latest version and checked that the issue is present there.
• I have searched the issue tracker for a similar issue and not found a similar issue.

General issue report

I'm exploring "pure" CMake components (libraries only) as per
https://docs.espressif.com/projects/esp ... components

Two related issues I face:

1. Cannot make it interact with IDF component manager
2. If main consuming app uses COMPONENTS main then pure cmake component can't find things like idf::nvs_flash

What do you recommend to overcome these issues, especially the first one?
Placing dependency management out in consuming app feels more like a workaround than a solution

[kumekay]

Hello @malachib,

The current build system of ESP-IDF is somewhat inflexible: You either use it with all it's features including the comopnent manager, or use pure CMake approach leaving many features behind.

The next major release of ESP-IDF may introduce a new iteration of build system which will make it possible to combine both ways.

[malachib]

Hope so :)
I am happy enough with the existing augmented-CMake arrangement, but raising this alternate form up would be incredibly useful.