Re: [PATCH] fetcher: fix BB_STRICT_CHECKSUM datatype check

[Richard Purdie <richard.purdie@linuxfoundation.org>]

On Thu, 2014-09-25 at 18:14 -0500, Alejandro Hernandez wrote:
> [YOCTO #6762]
> 
> Signed-off-by: Alejandro Hernandez <alejandro.hernandez@linux.intel.com>
> ---
>  lib/bb/fetch2/__init__.py | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/lib/bb/fetch2/__init__.py b/lib/bb/fetch2/__init__.py
> index df2f2b0..e182a9d 100644
> --- a/lib/bb/fetch2/__init__.py
> +++ b/lib/bb/fetch2/__init__.py
> @@ -544,7 +544,7 @@ def verify_checksum(ud, d):
>      if ud.method.recommends_checksum(ud):
>          # If strict checking enabled and neither sum defined, raise error
>          strict = d.getVar("BB_STRICT_CHECKSUM", True) or None
> -        if strict and not (ud.md5_expected or ud.sha256_expected):
> +        if (strict == 1) and not (ud.md5_expected or ud.sha256_expected):
>              logger.error('No checksum specified for %s, please add at least one to the recipe:\n'
>                               'SRC_URI[%s] = "%s"\nSRC_URI[%s] = "%s"' %
>                               (ud.localpath, ud.md5_name, md5data,

This gets slightly tricky since the value can be a string or an integer
or "None". This needs to work if strict = "1" as well as strict = 1 for
example.

I'm thinking we should perhaps import the boolean function from
meta/lib/oe/types.py in OE-Core into a new types module in bitbake, as
well as perhaps allowing the function to accept integers of 0 (False)
and other than 0 (True) and accepting "None" as False.

We could then use this function here to get a "good" value for the
field. There are a number of other places we should really start using a
standardised function too...

From the bigger picture perspective, we've long since wanted to have
better typed variables, there is a bit more planning needed for that
however this would be a good step towards it IMO.

Cheers,

Richard