Add support for OpenTelemetry 1.0.0.rc2

In particular open-telemetry/opentelemetry-ruby#807
changed some of the APIs we were using to get the current span for a
thread.

To test both 0.17.0 and this new version I moved
opentelemetry to appraisals.

Appraisals

@@ -8,6 +8,16 @@ def self.gem_cucumber(version)
   end
 end
 
+def self.apraise_opentelemetry
+  appraise 'opentelemetry-pre-1-0' do
+    gem 'opentelemetry-sdk', '< 1'
+  end
+
+  appraise 'opentelemetry-1-0' do
+    gem 'opentelemetry-sdk', '>= 1.0.0.rc2'
+  end
+end
+
 if Gem::Version.new(RUBY_VERSION) < Gem::Version.new(Datadog::VERSION::MINIMUM_RUBY_VERSION)
   raise NotImplementedError, "Ruby versions < #{Datadog::VERSION::MINIMUM_RUBY_VERSION} are not supported!"
 elsif Gem::Version.new('2.1.0') <= Gem::Version.new(RUBY_VERSION) \
@@ -784,6 +794,8 @@ elsif Gem::Version.new('2.5.0') <= Gem::Version.new(RUBY_VERSION) \
     gem 'resque', '>= 2.0'
   end
 
+  apraise_opentelemetry
+
   (3..5).each { |v| gem_cucumber(v) }
 
   appraise 'contrib' do
@@ -966,6 +978,8 @@ elsif Gem::Version.new('2.6.0') <= Gem::Version.new(RUBY_VERSION) \
       gem 'resque', '>= 2.0'
     end
 
+    apraise_opentelemetry
+
     (3..5).each { |v| gem_cucumber(v) }
 
     appraise 'contrib' do
@@ -1149,6 +1163,8 @@ elsif Gem::Version.new('2.7.0') <= Gem::Version.new(RUBY_VERSION) \
       gem 'resque', '>= 2.0'
     end
 
+    apraise_opentelemetry
+
     (3..5).each { |v| gem_cucumber(v) }
 
     appraise 'contrib' do
@@ -1247,6 +1263,8 @@ elsif Gem::Version.new('3.0.0') <= Gem::Version.new(RUBY_VERSION)
     gem 'resque', '>= 2.0'
   end
 
+  apraise_opentelemetry
+
   (3..5).each { |v| gem_cucumber(v) }
 
   appraise 'contrib' do

Gemfile

@@ -59,7 +59,6 @@ end
 # Optional extensions
 # TODO: Move this to Appraisals?
 gem 'dogstatsd-ruby', '< 5.0'
-gem 'opentelemetry-api', '>= 0.17.0' if RUBY_VERSION >= '2.5.0'
 gem 'opentracing', '>= 0.4.1'
 
 # Profiler optional dependencies

Rakefile

@@ -18,7 +18,7 @@ namespace :spec do
   RSpec::Core::RakeTask.new(:main) do |t, args|
     t.pattern = 'spec/**/*_spec.rb'
     t.exclude_pattern = 'spec/**/{contrib,benchmark,redis,opentracer,opentelemetry,auto_instrument}/**/*_spec.rb,'\
-                        ' spec/**/auto_instrument_spec.rb'
+                        ' spec/**/auto_instrument_spec.rb,spec/**/profiling/**/opentelemetry_spec.rb'
     t.rspec_opts = args.to_a.join(' ')
   end
 
@@ -68,6 +68,11 @@ namespace :spec do
     t.rspec_opts = args.to_a.join(' ')
   end
 
+  RSpec::Core::RakeTask.new(:'profiling-opentelemetry') do |t, args|
+    t.pattern = 'spec/**/profiling/**/opentelemetry_spec.rb'
+    t.rspec_opts = args.to_a.join(' ')
+  end
+
   RSpec::Core::RakeTask.new(:contrib) do |t, args|
     contrib_paths = [
       'analytics',
@@ -628,6 +633,11 @@ task :ci do
     declare 'bundle exec appraisal cucumber3 rake spec:cucumber'
     declare 'bundle exec appraisal cucumber4 rake spec:cucumber'
     declare 'bundle exec appraisal cucumber5 rake spec:cucumber'
+
+    # Profiling
+    declare 'bundle exec appraisal opentelemetry-pre-1-0 rake spec:profiling-opentelemetry'
+    declare 'bundle exec appraisal opentelemetry-1-0 rake spec:profiling-opentelemetry'
+
   elsif Gem::Version.new('2.6.0') <= Gem::Version.new(RUBY_VERSION) \
       && Gem::Version.new(RUBY_VERSION) < Gem::Version.new('2.7.0')
     # Main library
@@ -726,6 +736,10 @@ task :ci do
       declare 'bundle exec appraisal cucumber3 rake spec:cucumber'
       declare 'bundle exec appraisal cucumber4 rake spec:cucumber'
       declare 'bundle exec appraisal cucumber5 rake spec:cucumber'
+
+      # Profiling
+      declare 'bundle exec appraisal opentelemetry-pre-1-0 rake spec:profiling-opentelemetry'
+      declare 'bundle exec appraisal opentelemetry-1-0 rake spec:profiling-opentelemetry'
     end
   elsif Gem::Version.new('2.7.0') <= Gem::Version.new(RUBY_VERSION) \
       && Gem::Version.new(RUBY_VERSION) < Gem::Version.new('3.0.0')
@@ -824,6 +838,10 @@ task :ci do
       declare 'bundle exec appraisal cucumber3 rake spec:cucumber'
       declare 'bundle exec appraisal cucumber4 rake spec:cucumber'
       declare 'bundle exec appraisal cucumber5 rake spec:cucumber'
+
+      # Profiling
+      declare 'bundle exec appraisal opentelemetry-pre-1-0 rake spec:profiling-opentelemetry'
+      declare 'bundle exec appraisal opentelemetry-1-0 rake spec:profiling-opentelemetry'
     end
   elsif Gem::Version.new('3.0.0') <= Gem::Version.new(RUBY_VERSION)
     # Main library
@@ -898,6 +916,11 @@ task :ci do
       declare 'bundle exec appraisal cucumber3 rake spec:cucumber'
       declare 'bundle exec appraisal cucumber4 rake spec:cucumber'
       declare 'bundle exec appraisal cucumber5 rake spec:cucumber'
+
+      # Profiling
+      declare 'bundle exec appraisal opentelemetry-pre-1-0 rake spec:profiling-opentelemetry'
+      declare 'bundle exec appraisal opentelemetry-1-0 rake spec:profiling-opentelemetry'
+
     end
   end
 end