Re: [bitbake-devel] [PATCH 2/2] bin/bitbake-getvar: Add a new command to query a variable value (with history)

["Ola x Nilsson" <ola.x.nilsson@axis.com>]

On fri, apr 16 2021, Richard Purdie wrote:

> We've talked about having this for long enough. Add a command which queries a single
> variable value with history. This saves "bitbake -e | grep" and avoids the
> various pitfalls that has.
>
> It also provides a neat example of using tinfoil to make such a query.
>
> Parameters to limit the output to just the value, to limit to a variable flag
> and to not expand the output are provided.

I think this will be a very useful tool.  I have hacked (as in I really
don't want to show anyone the code) something similar together on top of
bitbake -e and I've found this commandline very useful

bitbake-getvar RECIPE VARIABLE [VARIABLE...]

so that I do not have to repeat the command when I want to examine more
than one variable.  Expanding with VARIABLE[FLAG] syntax would be nice.
Of course, if you want to examine several flags for a variable that will
mean a lot of extra typing.

I chose to add a -g flag for --global, as in no specific recipe so it is
kind of reverse of this command's options.

Just my 2 cents

/Ola