Query configuration

Query configuration

[Gary Thomas]

I have a recipe that needs to make sure a global setting is
in place (used by a different recipe).  How can I test for
this variable/setting in my recipe and issue a warning/error
if it is not?

Thanks for any ideas

-- 
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Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
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Re: Query configuration

[Gary Thomas]

On 2015-11-19 09:42, Gary Thomas wrote:
> I have a recipe that needs to make sure a global setting is
> in place (used by a different recipe).  How can I test for
> this variable/setting in my recipe and issue a warning/error
> if it is not?
>
> Thanks for any ideas
>

Never mind - it occurred to me to see if some other recipe had
such checks and I found some and was able to add this to my recipe:

# Make sure SPI will is enabled
python do_check_variables() {
     ENABLE_SPI_BUS = d.getVar('ENABLE_SPI_BUS', True)
     if ENABLE_SPI_BUS != '1':
        bb.fatal("PiFace module can't work without SPI support - Add ENABLE_SPI_BUS='1' to local.conf")
}
addtask check_variables before do_fetch

Not sure if this is the best way but it suffices.

-- 
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
------------------------------------------------------------

Re: Query configuration

[Paul Eggleton]

Hi Gary,

On Thursday 19 November 2015 10:01:36 Gary Thomas wrote:
> On 2015-11-19 09:42, Gary Thomas wrote:
> > I have a recipe that needs to make sure a global setting is
> > in place (used by a different recipe).  How can I test for
> > this variable/setting in my recipe and issue a warning/error
> > if it is not?
> > 
> > Thanks for any ideas
> 
> Never mind - it occurred to me to see if some other recipe had
> such checks and I found some and was able to add this to my recipe:
> 
> # Make sure SPI will is enabled
> python do_check_variables() {
>      ENABLE_SPI_BUS = d.getVar('ENABLE_SPI_BUS', True)
>      if ENABLE_SPI_BUS != '1':
>         bb.fatal("PiFace module can't work without SPI support - Add
> ENABLE_SPI_BUS='1' to local.conf") }
> addtask check_variables before do_fetch
> 
> Not sure if this is the best way but it suffices.

Another thing you could do would be to do a similar thing except use anonymous 
python and raise SkipRecipe instead of bb.fatal().

Cheers,
Paul

-- 

Paul Eggleton
Intel Open Source Technology Centre