Re: Recipe Grep'ing

Bruce Ashfield

On Wed, May 5, 2021 at 8:42 PM Chuck Wolber <chuckwolber@...> wrote:

I was pondering putting some work in to a fairly large patch set aimed at making recipes easier to grep through, and wanted to get some feedback before I put time and effort into it.

I have often found that the following pattern cleanly describes the "what" and the "why" when grep'ing through recipes to search for things:

FOO += "item1"
FOO += "item2"

Whereas this pattern gives us the "what", but not the "why":

FOO = "item1 \
item2 \

After discussing this with Richard Purdie on IRC, I also understand that the latter pattern benefits some forms of build output. In addition, for SRC_URI, the "why" is normally fairly obvious from context clues.
The other issue with large formatting patches, is that they make a
history "wall". So when we are debugging and trying to figure why a
change was made, you always have to jump over the wall (or dig under
it) to get the real information.

As such, I'm not a fan of changes like this, unless they are coupled
to some sort of functional change. So I'd be hesitant to take them
into recipes that I end up holding the bag when things break.



So, is there any interest in accepting a patch set of that nature for Yocto and OE repositories? If so, what variables and situations should be considered "off limits" to a change like that?


"Perfection must be reached by degrees; she requires the slow hand of time." - Voltaire

- Thou shalt not follow the NULL pointer, for chaos and madness await
thee at its end
- "Use the force Harry" - Gandalf, Star Trek II

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