Update nuget version regex

Allow major.minor versions without a patch
in the NuGet version value.

Changelog: changed

lib/gitlab/regex.rb

@@ -79,7 +79,11 @@ module Gitlab
 
       def nuget_version_regex
         @nuget_version_regex ||= /
-          \A#{_semver_major_minor_patch_regex}(\.\d*)?#{_semver_prerelease_build_regex}\z
+          \A#{_semver_major_regex}
+          \.#{_semver_minor_regex}
+          (\.#{_semver_patch_regex})?
+          (\.\d*)?
+          #{_semver_prerelease_build_regex}\z
         /x.freeze
       end
 
@@ -167,9 +171,25 @@ module Gitlab
       # regexes rather than being used alone.
       def _semver_major_minor_patch_regex
         @_semver_major_minor_patch_regex ||= /
+          #{_semver_major_regex}\.#{_semver_minor_regex}\.#{_semver_patch_regex}
+        /x.freeze
+      end
+
+      def _semver_major_regex
+        @_semver_major_regex ||= /
           (?<major>0|[1-9]\d*)
-          \.(?<minor>0|[1-9]\d*)
-          \.(?<patch>0|[1-9]\d*)
+        /x.freeze
+      end
+
+      def _semver_minor_regex
+        @_semver_minor_regex ||= /
+          (?<minor>0|[1-9]\d*)
+        /x.freeze
+      end
+
+      def _semver_patch_regex
+        @_semver_patch_regex ||= /
+          (?<patch>0|[1-9]\d*)
         /x.freeze
       end
 

spec/lib/gitlab/regex_spec.rb

@@ -433,6 +433,7 @@ RSpec.describe Gitlab::Regex do
   describe '.nuget_version_regex' do
     subject { described_class.nuget_version_regex }
 
+    it { is_expected.to match('1.2') }
     it { is_expected.to match('1.2.3') }
     it { is_expected.to match('1.2.3.4') }
     it { is_expected.to match('1.2.3.4-stable.1') }
@@ -440,7 +441,6 @@ RSpec.describe Gitlab::Regex do
     it { is_expected.to match('1.2.3-alpha.3') }
     it { is_expected.to match('1.0.7+r3456') }
     it { is_expected.not_to match('1') }
-    it { is_expected.not_to match('1.2') }
     it { is_expected.not_to match('1./2.3') }
     it { is_expected.not_to match('../../../../../1.2.3') }
     it { is_expected.not_to match('%2e%2e%2f1.2.3') }

spec/models/packages/package_spec.rb

@@ -413,9 +413,17 @@ RSpec.describe Packages::Package, type: :model do
       it_behaves_like 'validating version to be SemVer compliant for', :terraform_module_package
 
       context 'nuget package' do
-        it_behaves_like 'validating version to be SemVer compliant for', :nuget_package
+        subject { build_stubbed(:nuget_package) }
 
+        it { is_expected.to allow_value('1.2').for(:version) }
+        it { is_expected.to allow_value('1.2.3').for(:version) }
         it { is_expected.to allow_value('1.2.3.4').for(:version) }
+        it { is_expected.to allow_value('1.2.3-beta').for(:version) }
+        it { is_expected.to allow_value('1.2.3-alpha.3').for(:version) }
+        it { is_expected.not_to allow_value('1').for(:version) }
+        it { is_expected.not_to allow_value('1./2.3').for(:version) }
+        it { is_expected.not_to allow_value('../../../../../1.2.3').for(:version) }
+        it { is_expected.not_to allow_value('%2e%2e%2f1.2.3').for(:version) }
       end
     end