gem_install.sh produces a hard to understand error message

[dcermak]

I have just tried to build winrm (v2.3.1) as an rpm and I get the following failure during the build from gem_install.sh:

[   11s] /usr/lib/rpm/gem_install.sh:83:in `map_executable': undefined method `[]' for false:FalseClass (NoMethodError)
[   11s]        from /usr/lib/rpm/gem_install.sh:242:in `block in <main>'
[   11s]        from /usr/lib/rpm/gem_install.sh:237:in `each'
[   11s]        from /usr/lib/rpm/gem_install.sh:237:in `<main>'
[   11s] error: Bad exit status from /var/tmp/rpm-tmp.ixL7hg (%install)

The corresponding OBS project is: https://build.opensuse.org/package/show/home:dancermak:branches:Virtualization:vagrant/rubygem-winrm

This issue occurs on all enabled OpenSUSE & SLE versions, so my guess is that winrm is doing something unexpected in their executable? Unfortunately my ruby knowledge is next to non-existent, so I don't know what could be the issue.

[dcermak]

I have found out that the above issue is not a "real" bug in gem_install.sh. I have fixed it by including the following line in gem2rpm.yml:

:sources:

So maybe a suggestion for an improvement: could gem_install.sh please check whether it got the expected data from the config file and fail with an easier to understand error message?

[darix]

the actual problem is gem2rpm

[dcermak]

Is there a specific problem with gem2rpm that I could report upstream (since the error clearly occurs from within gem_install.sh)? Or would it be possible to report the problematic behavior from gem_install.sh?