[DRE-maint] Bug#867599: gem2deb fails to install pure ruby part when a gem has both pure ruby and native libs

[Pirate Praveen]

On 07/08/2017 01:48 PM, Pirate Praveen wrote:
> On 07/08/2017 11:53 AM, Pirate Praveen wrote:
>> On 07/08/2017 07:44 AM, Antonio Terceiro wrote:
>>> if the pure ruby libraries were not being installed, you would get a
>>> LoadError (i.e. a `require` statement failed), but that's not what is
>>> happening here.
>> For tests, the pure ruby libs are available in the source tree.
>>
>> If I move the src/ruby/lib folder (I have locally installed ruby-grpc
>> deb), then it fails with `require': cannot load such file -- grpc
>> (LoadError)
> 
> I think gem2deb expects libraries only in lib.
> 
> s.require_paths = %w( src/ruby/lib src/ruby/bin src/ruby/pb ) mentions
> it in grpc.gemspec but I don't know if gem2deb can reply on that.
> 

I tried adding X-DhRuby-Root: src/ruby but then I got this failure

┌──────────────────────────────────────────────────────────────────────────────┐
│ Install files
      │
└──────────────────────────────────────────────────────────────────────────────┘

install -d /<<PKGBUILDDIR>>/debian/ruby-grpc/usr/bin
install -D -m755 /<<PKGBUILDDIR>>/src/ruby/bin/apis
/<<PKGBUILDDIR>>/debian/ruby-grpc/usr/bin/apis
install: omitting directory '/<<PKGBUILDDIR>>/src/ruby/bin/apis'
/usr/lib/ruby/vendor_ruby/gem2deb.rb:56:in `run': install -D -m755
/<<PKGBUILDDIR>>/src/ruby/bin/apis
/<<PKGBUILDDIR>>/debian/ruby-grpc/usr/bin/apis (Gem2Deb::CommandFailed)
	from /usr/lib/ruby/vendor_ruby/gem2deb/installer.rb:172:in `block in
install_files'
	from /usr/lib/ruby/vendor_ruby/gem2deb/installer.rb:169:in `each'
	from /usr/lib/ruby/vendor_ruby/gem2deb/installer.rb:169:in `install_files'
	from /usr/lib/ruby/vendor_ruby/gem2deb/installer.rb:30:in
`install_files_and_build_extensions'
	from /usr/lib/ruby/vendor_ruby/gem2deb/dh_ruby.rb:84:in `block in install'
	from /usr/lib/ruby/vendor_ruby/gem2deb/dh_ruby.rb:82:in `each'
	from /usr/lib/ruby/vendor_ruby/gem2deb/dh_ruby.rb:82:in `install'
	from /usr/bin/dh_ruby:94:in `<main>'
dh_auto_install: dh_ruby --install /<<PKGBUILDDIR>>/debian/ruby-grpc
returned exit code 1
debian/rules:6: recipe for target 'binary-arch' failed
make: *** [binary-arch] Error 1
dpkg-buildpackage: error: fakeroot debian/rules binary-arch gave error
exit status 2
--------------------------------------------------------------------------------
Build finished at 2017-07-08T09:04:37Z

Finished
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