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If the version_suffix is set in gem2rpm.yml like this:
:version_suffix: -1_2
...and the spec file is created with "gem2rpm --config gem2rpm.yml ...", then the suffix is wrong.

https://build.opensuse.org/request/show/537785
This is what happens, when the suffix is not quoted first, then gets quoted and the spec is recreated.

To avoid wrong package names, quote the version_suffix in gem2rpm.yml.documentation.
#10

Tested on Leap 42.2 with ruby2.1-rubygem-gem2rpm-0.10.1-5.3.1.x86_64.

Kind Regards,
Johannes

compare with here:
rubygem-chef-ruby-lvm

Provides:       rubygem(di-ruby-lvm) = %{version}
Obsoletes:      rubygem(di-ruby-lvm) < %{version}

rpm -q --provides /srv/oscbuild/SLE_12-x86_64/home/abuild/rpmbuild/RPMS/x86_64/ruby2.1-rubygem-chef-ruby-lvm-0.4.0-0.x86_64.rpm

ruby2.1-rubygem-chef-ruby-lvm = 0.4.0-0
ruby2.1-rubygem-chef-ruby-lvm(x86-64) = 0.4.0-0
rubygem(chef-ruby-lvm) = 0.4.0
rubygem(ruby:2.1.0:chef-ruby-lvm) = 0.4.0
rubygem(ruby:2.1.0:chef-ruby-lvm:0) = 0.4.0
rubygem(ruby:2.1.0:chef-ruby-lvm:0.4) = 0.4.0
rubygem(ruby:2.1.0:chef-ruby-lvm:0.4.0) = 0.4.0

the expected rubygem(di-ruby-lvm) = 0.4.0 is missing.

rpm -q --obsoletes /srv/oscbuild/SLE_12-x86_64/home/abuild/rpmbuild/RPMS/x86_64/ruby2.1-rubygem-chef-ruby-lvm-0.4.0-0.x86_64.rpm
result is empty, so the expected rubygem(di-ruby-lvm) < 0.4.0 is missing

(filing a bug so I don't forget, it's easy to implement)

$subject

There are some deps (in rails 4.2 stack) to package version like 4.2.0.beta. Since this is newer then to 4.2.0 from rpm's POV the packages are not installable.

IMHO we should detect this and

• On newer distros map this to 4.2.0~beta for example
• On older distros just drop the .beta part?

We need to implement support for minimal single line comments (patch markup) in gem2rpm so that they end up in the generated specfile
https://en.opensuse.org/openSUSE:Packaging_Patches_guidelines

rdiscount-2.1.7.1.gem has this requirements (from the metadata in the gem file):

required_ruby_version: !ruby/object:Gem::Requirement
requirements:

• - '!='
  • !ruby/object:Gem::Version
    version: 1.9.2

note the "!=" operator

which gets translated, into the spec file, as:

BuildRequires: %{rubydevel < 1.9.2}
BuildRequires: %{rubydevel > 1.9.2}

which, when building, produces the error:

unresolvable: nothing provides ruby2.1-devel < 1.9.2

This looks like an error to me