ec.easyblock not the same type for components than for main easyconfigs

[mboisson]

Using this EasyConfig :
https://github.com/easybuilders/easybuild-easyconfigs/blob/acce328b9bb3c9cde5727102c6d23124235c80a1/easybuild/easyconfigs/m/MESS/MESS-0.1.6-foss-2019b.eb

I encounter

== 2020-07-14 18:26:02,826 build_log.py:169 ERROR EasyBuild crashed with an error (at easybuild/site-packages/easybuild-framework/easybuild/base/exceptions.py:124 in __init__): Failed to obtain class for <class 'easybuild.easyblocks.generic.configuremake.ConfigureMake'> easyblock (not available?): type object 'ConfigureMake' has no attribute 'split' (at         easybuild/site-packages/easybuild-framework/easybuild/framework/easyconfig/easyconfig.py:1843 in get_easyblock_class)

because of this line in our hooks :
https://github.com/ComputeCanada/easybuild-computecanada-config/blob/07270b6a6c690a1e4d4f631ded4a3c0ecda7f95d/cc_hooks_nix.py#L292

The failure comes from

easybuild-framework/easybuild/framework/easyconfig/easyconfig.py

Line 1775 in d009198

es = easyblock.split('.')

This is because of the representation of ec.easyblock in the "components", i.e.
https://github.com/easybuilders/easybuild-easyconfigs/blob/acce328b9bb3c9cde5727102c6d23124235c80a1/easybuild/easyconfigs/m/MESS/MESS-0.1.6-foss-2019b.eb#L25

The type of ec.easyblock is a str for main EasyConfigs, but it is a type for the "components".

Why the inconsistency ?

[mboisson]

Note that I "fixed" our hook in this commit
ComputeCanada/easybuild-computecanada-config@831423e

but I don't think I should have to do this check. easyblock should be a string everywhere.