Re: Recipe Grep'ing

Khem Raj

On Wed, May 5, 2021 at 7:13 PM Bruce Ashfield <bruce.ashfield@...> wrote:

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.
right, that's what if we want to do this then it has to be persisted
with otherwise it will end up being one time exercise with all these
losses you described.

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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