[yocto] Extensible SDK and DEFAULT_PREFERENCE

[Martin Siegumfeldt]

On Wed, Apr 18, 2018 at 5:41 AM, Martin Siegumfeldt <mns at gomspace.com> wrote:
> Hi,
>
> I am having a number of recipes residing in two versions, some (development versions) being down-prioritized using:
>
> DEFAULT_PREFERENCE = "-1"
>
>
> The source code is hosted at a private git repository, and the git version is selected using 'AUTOREV'. The extensible SDK renders successfully, however the installation (by third party) fails:
>
> Traceback (most recent call last):
>   File "/home/martin/gomspace_sdk/layers/poky/bitbake/lib/bb/data_smart.py", line 412, in DataSmart.expandWithRefs(s='dev+git${SRCPV}', varname='PV'):
>                  try:
>     >                s = __expand_var_regexp__.sub(varparse.var_sub, s)
>                      try:
>   File "/home/martin/gomspace_sdk/layers/poky/bitbake/lib/bb/data_smart.py", line 111, in VariableParse.var_sub(match=<_sre.SRE_Match object; span=(7, 15), match='${SRCPV}'>):
>                  else:
>     >                var = self.d.getVarFlag(key, "_content")
>                  self.references.add(key)
>   File "/home/martin/gomspace_sdk/layers/poky/bitbake/lib/bb/data_smart.py", line 794, in DataSmart.getVarFlag(var='SRCPV', flag='_content', expand=True, noweakdefault=False, parsing=False):
>                      cachename = var + "[" + flag + "]"
>     >            value = self.expand(value, cachename)
>
>   File "/home/martin/gomspace_sdk/layers/poky/bitbake/lib/bb/data_smart.py", line 436, in DataSmart.expand(s='${@bb.fetch2.get_srcrev(d)}', varname='SRCPV'):
>          def expand(self, s, varname = None):
>     >        return self.expandWithRefs(s, varname).value
>
>   File "/home/martin/gomspace_sdk/layers/poky/bitbake/lib/bb/data_smart.py", line 426, in DataSmart.expandWithRefs(s='${@bb.fetch2.get_srcrev(d)}', varname='SRCPV'):
>                  except Exception as exc:
>     >                raise ExpansionError(varname, s, exc) from exc
>
> bb.data_smart.ExpansionError: Failure expanding variable SRCPV, expression was ${@bb.fetch2.get_srcrev(d)} which triggered exception FetchError: Fetcher failure: Fetch command export GIT_SSL_CAINFO="/home
> /martin/gomspace_sdk/buildtools/sysroots/x86_64-gomspacesdk-linux/etc/ssl/certs/ca-certificates.crt"; export PATH="/home/martin/gomspace_sdk/tmp/work/aarch64-gomspace-linux/libgsisl/fetcheravoidrecurse-r0
> /recipe-sysroot-native/usr/bin/python-native:/home/martin/gomspace_sdk/layers/poky/scripts:/home/martin/gomspace_sdk/tmp/work/aarch64-gomspace-linux/libgsisl/fetcheravoidrecurse-r0/recipe-sysroot-native/u
> sr/bin/aarch64-gomspace-linux:/home/martin/gomspace_sdk/tmp/work/aarch64-gomspace-linux/libgsisl/fetcheravoidrecurse-r0/recipe-sysroot/usr/bin/crossscripts:/home/martin/gomspace_sdk/tmp/work/aarch64-gomsp
> ace-linux/libgsisl/fetcheravoidrecurse-r0/recipe-sysroot-native/usr/sbin:/home/martin/gomspace_sdk/tmp/work/aarch64-gomspace-linux/libgsisl/fetcheravoidrecurse-r0/recipe-sysroot-native/usr/bin:/home/marti
> n/gomspace_sdk/tmp/work/aarch64-gomspace-linux/libgsisl/fetcheravoidrecurse-r0/recipe-sysroot-native/sbin:/home/martin/gomspace_sdk/tmp/work/aarch64-gomspace-linux/libgsisl/fetcheravoidrecurse-r0/recipe-s
> ysroot-native/bin:/home/martin/gomspace_sdk/layers/poky/bitbake/bin:/home/martin/gomspace_sdk/tmp/hosttools"; export HOME="/home/martin"; git -c core.fsyncobjectfiles=0 ls-remote ssh://git@github.com/GomS
> pace/libisl  failed with exit code 128, output:
> Host key verification failed.
> fatal: Could not read from remote repository.
>
>
> Please make sure you have the correct access rights
> and the repository exists.
>
> It is not the intention that third party will ever need access to the development version, and I don't see why the version information is fetched given the reduced priority. Have I encountered an 'undocumented bug' or is there an alternate approach to achieve this?

AUTOREV is floating dependency, fetcher has to ensure to get a value
for it to populate version strings
before comparing which one to use. you might be able to use BBMASK
effectively to eliminate these
recips from parsers visibility completely.

Thanks, BBMASK seems to do the trick...

>
> Thanks,
> Martin
> --
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