Add conditional

.github/workflows/gem-push.yml

@@ -36,7 +36,14 @@ jobs:
         GEM_HOST_API_KEY: "Bearer ${{secrets.GITHUB_TOKEN}}"
         OWNER: ${{ github.repository_owner }}
 
+    - name: Check if version exists
+      id: checkversionexists
+      run: |
+        rake check_version
+        echo "VERSION_EXISTS=$?" >> $GITHUB_OUTPUT
+
     - name: Publish to RubyGems
+      if: steps.checkversionexists.outputs.VERSION_EXISTS == '0'
       run: |
         mkdir -p $HOME/.gem
         touch $HOME/.gem/credentials

Rakefile

@@ -1,8 +1,28 @@
 require 'rubygems'
 require 'rspec/core/rake_task'
+require 'net/http'
+require 'uri'
+require 'gtfs'
 
 RSpec::Core::RakeTask.new do |t|
   t.pattern = './spec/**/*_spec.rb'
 end
 
 task :default => [:spec]
+
+# Task to check if versin exists on rubygems
+task :check_version do
+  version = GTFS::VERSION
+  # query api
+  url = "https://rubygems.org/api/v2/rubygems/gtfs/versions/#{version}"
+
+  response = Net::HTTP.get_response(URI.parse(url))
+
+  if response.code == '200'
+    puts "Version #{version} exists on rubygems"
+    exit 1
+  end
+
+  puts "Version #{version} does not exist on rubygems"
+  exit 0
+end