waf bsp_defaults sometimes includes multiple BSPs

[Sebastian Huber]

On 01/10/2020 23:38, Joel Sherrill wrote:

> I am generating a uniquely named ini file per BSP. In doing an ls -l, 
> I noticed the size varied by at least a factor of three. This is 
> because when some BSPs are put in, the entire family is being 
> included.  I suspected this happens when a BSP name matches the family 
> name but leon3 doesn't trip this behavior. Here is an example:
>
> config-arm-lpc32xx_mzx.ini:[arm/lpc32xx_mzx]
> config-arm-lpc32xx_mzx.ini:[arm/lpc32xx_mzx_stage_1]
> config-arm-lpc32xx_mzx.ini:[arm/lpc32xx_mzx_stage_2]
>
> I don't think this behavior is correct. I am asking for the bsp 
> defaults for a single BSP variant.

I guess you refer to the behaviour of:

     --rtems-bsps=REGEX,...
                         a comma-separated list of Python regular 
expressions which select the desired BSP variants (e.g. 'sparc/erc32'); 
it may be used in the bsp_defaults and bsp_list commands

It is currently used like this:

def is_in_white_list(variant, white_list):
     if not white_list:
         return True
     for pattern in white_list:
         if re.search(pattern, variant):
             return True
     return False

Maybe we should change it to:

def is_in_white_list(variant, white_list):
     if not white_list:
         return True
     for pattern in white_list:
         if re.match(pattern + "$", variant):
             return True
     return False