Validate artifacts:expire_in in yaml processor

lib/ci/gitlab_ci_yaml_processor.rb

@@ -282,6 +282,10 @@ module Ci
       if job[:artifacts][:when] && !job[:artifacts][:when].in?(%w(on_success on_failure always))
         raise ValidationError, "#{name} job: artifacts:when parameter should be on_success, on_failure or always"
       end
+
+      if job[:artifacts][:expire_in] && !validate_duration(job[:artifacts][:expire_in])
+        raise ValidationError, "#{name} job: artifacts:expire_in parameter should be a duration"
+      end
     end
 
     def validate_job_dependencies!(name, job)
@@ -300,6 +304,12 @@ module Ci
       end
     end
 
+    def validate_duration(value)
+      value.is_a?(String) && ChronicDuration.parse(value)
+    rescue ChronicDuration::DurationParseError
+      false
+    end
+
     def validate_array_of_strings(values)
       values.is_a?(Array) && values.all? { |value| validate_string(value) }
     end

spec/lib/ci/gitlab_ci_yaml_processor_spec.rb

@@ -572,7 +572,12 @@ module Ci
                              services:      ["mysql"],
                              before_script: ["pwd"],
                              rspec:         {
-                               artifacts: { paths: ["logs/", "binaries/"], untracked: true, name: "custom_name" },
+                               artifacts: {
+                                 paths: ["logs/", "binaries/"],
+                                 untracked: true,
+                                 name: "custom_name",
+                                 expire_in: "7d"
+                               },
                                script: "rspec"
                              }
                            })
@@ -594,7 +599,8 @@ module Ci
             artifacts: {
               name: "custom_name",
               paths: ["logs/", "binaries/"],
-              untracked: true
+              untracked: true,
+              expire_in: "7d"
             }
           },
           when: "on_success",
@@ -990,6 +996,20 @@ EOT
         end.to raise_error(GitlabCiYamlProcessor::ValidationError, "rspec job: artifacts:when parameter should be on_success, on_failure or always")
       end
 
+      it "returns errors if job artifacts:expire_in is not an a string" do
+        config = YAML.dump({ types: ["build", "test"], rspec: { script: "test", artifacts: { expire_in: 1 } } })
+        expect do
+          GitlabCiYamlProcessor.new(config)
+        end.to raise_error(GitlabCiYamlProcessor::ValidationError, "rspec job: artifacts:expire_in parameter should be a duration")
+      end
+
+      it "returns errors if job artifacts:expire_in is not an a valid duration" do
+        config = YAML.dump({ types: ["build", "test"], rspec: { script: "test", artifacts: { expire_in: "7 elephants" } } })
+        expect do
+          GitlabCiYamlProcessor.new(config)
+        end.to raise_error(GitlabCiYamlProcessor::ValidationError, "rspec job: artifacts:expire_in parameter should be a duration")
+      end
+
       it "returns errors if job artifacts:untracked is not an array of strings" do
         config = YAML.dump({ types: ["build", "test"], rspec: { script: "test", artifacts: { untracked: "string" } } })
         expect do