Kconfig delta

[MarkoSagadin]

Context

Sometimes changing a single Kconfig option can have unexpected changes, such as enabling Kconfig options that you wanted disabled, but did not explicitly set as such.

Proposed solution

Add command which can output diff of used Kconfigs between new and older build.
Developer should be able to use this command while:

• debugging why something does not work (and Kconfig is the suspect)
• inspecting Kconfig changes between specific git commits, tags..

Above could be used to generate an additional part of release changelog.

Of course this will need to be done for each build type, separately.

[MarkoSagadin]

There are some existing tools on the internet for this, look for kconfig-diff.