[yocto] Mercurial fetcher doesn't work for me (patch included)

[Aaron Cohen]

Also, what is it that is supposed to create the
$(BUILDDIR)/tmp/hosttools/hg symlink?

For some reason, this link is not created for me automatically. It works
fine if I create it manually.

--Aaron


On Mon, Nov 26, 2018 at 3:34 PM Aaron Cohen <aaron at assonance.org> wrote:

> I'm trying to write a recipe for a local repo that is kept in mercurial,
> and encountering the following problem:
>
>
>> Traceback (most recent call last):
>>   File "/home/joel-cohen/code/waveos2/poky/bitbake/lib/bb/data_smart.py",
>> line 808, in DataSmart.getVarFlag(var='PV', flag='_content', expand=True,
>> noweakdefault=False, parsing=False, retparser=False):
>>              if expand or retparser:
>>     >            parser = self.expandWithRefs(value, cachename)
>>              if expand:
>>   File "/home/joel-cohen/code/waveos2/poky/bitbake/lib/bb/data_smart.py",
>> line 416, in DataSmart.expandWithRefs(s='0.0.4+git${SRCPV}', varname='PV'):
>>                  try:
>>     >                s = __expand_var_regexp__.sub(varparse.var_sub, s)
>>                      try:
>>   File "/home/joel-cohen/code/waveos2/poky/bitbake/lib/bb/data_smart.py",
>> line 108, in VariableParse.var_sub(match=<_sre.SRE_Match object; span=(9,
>> 17), match='${SRCPV}'>):
>>                          raise Exception("variable %s references itself!"
>> % self.varname)
>>     >            var = self.d.getVarFlag(key, "_content")
>>                  self.references.add(key)
>>   File "/home/joel-cohen/code/waveos2/poky/bitbake/lib/bb/data_smart.py",
>> line 808, in DataSmart.getVarFlag(var='SRCPV', flag='_content',
>> expand=True, noweakdefault=False, parsing=False, retparser=False):
>>              if expand or retparser:
>>     >            parser = self.expandWithRefs(value, cachename)
>>              if expand:
>>   File "/home/joel-cohen/code/waveos2/poky/bitbake/lib/bb/data_smart.py",
>> line 430, 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
>> AttributeError: 'FetchData' object has no attribute 'moddir'
>
>
> I've fixed this with the following patch, which moves some code in the Hg
> fetcher to later in the urldata_init method, after some necessary variables
> have been initialized. I'm not sure if I'm alone in seeing this problem or
> not?
>
> Thanks for any help,
> Aaron
>
>
>
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