Specify gem version only once

Makefile

@@ -1,7 +1,7 @@
 .PHONY: test install build deploy
 
 deploy:
-	$(eval VERSION := $(shell cat lib/codecov.rb | grep 'VERSION = ' | cut -d\' -f2))
+	$(eval VERSION := $(shell cat lib/version.rb | grep 'LATEST = ' | cut -d\' -f2))
 	git tag v$(VERSION) -m ""
 	git push origin v$(VERSION)
 	gem build codecov.gemspec

codecov.gemspec

@@ -1,8 +1,12 @@
 # frozen_string_literal: true
 
+lib = File.expand_path('lib', __dir__)
+$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
+require 'version'
+
 Gem::Specification.new do |s|
   s.name               = 'codecov'
-  s.version            = '0.2.3'
+  s.version            = Version::LATEST
   s.platform           = Gem::Platform::RUBY
   s.authors            = ['codecov']
   s.email              = ['hello@codecov.io']

lib/codecov.rb

@@ -7,9 +7,9 @@
 require 'colorize'
 require 'zlib'
 
-class SimpleCov::Formatter::Codecov
-  VERSION = '0.2.3'
+require 'version'
 
+class SimpleCov::Formatter::Codecov
   ### CIs
   RECOGNIZED_CIS = [
     APPVEYOR = 'Appveyor CI',
@@ -41,7 +41,7 @@ def display_header
       '| |    / _ \ / _\`|/ _ \/ __/ _ \ \ / /',
       '| |___| (_) | (_| |  __/ (_| (_) \ V /',
       ' \_____\___/ \__,_|\___|\___\___/ \_/',
-      "                               Ruby-#{VERSION}",
+      "                               Ruby-#{Version::LATEST}",
       ''
     ].join("\n")
   end
@@ -98,7 +98,7 @@ def build_params(ci)
     params = {
       'token' => ENV['CODECOV_TOKEN'],
       'flags' => ENV['CODECOV_FLAG'] || ENV['CODECOV_FLAGS'],
-      'package' => "ruby-#{VERSION}"
+      'package' => "ruby-#{Version::LATEST}"
     }
 
     case ci
@@ -317,7 +317,7 @@ def retry_request(req, https)
   def create_report(report)
     result = {
       'meta' => {
-        'version' => 'codecov-ruby/v' + SimpleCov::Formatter::Codecov::VERSION
+        'version' => 'codecov-ruby/v' + Version::LATEST 
       }
     }
     result.update(result_to_codecov(report))

lib/version.rb

@@ -0,0 +1,5 @@
+# frozen_string_literal: true
+
+class Version
+  LATEST = '0.2.3'
+end

test/test_codecov.rb

@@ -35,7 +35,7 @@ def url
 
   def test_defined
     assert defined?(SimpleCov::Formatter::Codecov)
-    assert defined?(SimpleCov::Formatter::Codecov::VERSION)
+    assert defined?(Version::LATEST)
   end
 
   def stub_file(filename, coverage)
@@ -50,7 +50,7 @@ def stub_file(filename, coverage)
     stub('SimpleCov::SourceFile', filename: filename, lines: lines)
   end
 
-  def upload(success=true)
+  def upload(success = true)
     formatter = SimpleCov::Formatter::Codecov.new
     result = stub('SimpleCov::Result', files: [
                     stub_file('/path/lib/something.rb', [1, 0, 0, nil, 1, nil]),
@@ -61,9 +61,7 @@ def upload(success=true)
     data = formatter.format(result, false)
     puts data
     puts data['params']
-    if success
-      assert_successful_upload(data)
-    end
+    assert_successful_upload(data) if success
     WebMock.reset!
     data
   end
@@ -85,7 +83,7 @@ def success_stubs
   def assert_successful_upload(data)
     assert_equal(data['result']['uploaded'], true)
     assert_equal(data['result']['message'], 'Coverage reports upload successfully')
-    assert_equal(data['meta']['version'], 'codecov-ruby/v' + SimpleCov::Formatter::Codecov::VERSION)
+    assert_equal(data['meta']['version'], 'codecov-ruby/v' + Version::LATEST)
     assert_equal(data['coverage'].to_json, {
       'lib/something.rb' => [nil, 1, 0, 0, nil, 1, nil],
       'lib/somefile.rb' => [nil, 1, nil, 1, 1, 1, 0, 0, nil, 1, nil]