support group configs specifically for security updates or version updates

common/lib/dependabot/dependency_group.rb

@@ -22,15 +22,21 @@ class DependencyGroup
     sig { returns(T::Array[Dependabot::Dependency]) }
     attr_reader :dependencies
 
+    sig { returns(String) }
+    attr_reader :applies_to
+
     sig do
       params(
         name: String,
-        rules: T::Hash[String, T.untyped]
+        rules: T::Hash[String, T.untyped],
+        applies_to: T.nilable(String)
       )
         .void
     end
-    def initialize(name:, rules:)
+    def initialize(name:, rules:, applies_to: "version-updates")
       @name = name
+      # For backwards compatibility, if no applies_to is provided, default to "version-updates"
+      @applies_to = T.let(applies_to || "version-updates", String)
       @rules = rules
       @dependencies = T.let([], T::Array[Dependabot::Dependency])
     end

silent/tests/testdata/su-group-pattern.txt

@@ -83,6 +83,7 @@ job:
   security-updates-only: true
   dependency-groups:
     - name: related
+      applies-to: "security-updates"
       rules:
         patterns:
           - "related-*"

silent/tests/testdata/su-group-semver.txt

@@ -83,6 +83,7 @@ job:
   security-updates-only: true
   dependency-groups:
     - name: dev
+      applies-to: security-updates
       rules:
         update-types:
           - minor

silent/tests/testdata/su-group-type.txt

@@ -85,8 +85,10 @@ job:
   grouped-update: true
   dependency-groups:
     - name: dev
+      applies-to: security-updates
       rules:
         dependency-type: development
     - name: prod
+      applies-to: security-updates
       rules:
         dependency-type: production

updater/lib/dependabot/dependency_group_engine.rb

@@ -31,7 +31,8 @@ def self.from_job_config(job:)
         # Since there are no groups, the default behavior is to group all dependencies, so create a fake group.
         job.dependency_groups << {
           "name" => "#{job.package_manager} group",
-          "rules" => { "patterns" => ["*"] }
+          "rules" => { "patterns" => ["*"] },
+          "applies-to" => "security-updates"
         }
 
         # This ensures refreshes work for these dynamic groups.
@@ -41,9 +42,16 @@ def self.from_job_config(job:)
       end
 
       groups = job.dependency_groups.map do |group|
-        Dependabot::DependencyGroup.new(name: group["name"], rules: group["rules"])
+        Dependabot::DependencyGroup.new(name: group["name"], rules: group["rules"], applies_to: group["applies-to"])
       end
 
+      # Filter out version updates when doing security updates and visa versa
+      groups = if job.security_updates_only?
+                 groups.select { |group| group.applies_to == "security-updates" }
+               else
+                 groups.select { |group| group.applies_to == "version-updates" }
+               end
+
       new(dependency_groups: groups)
     end
 

updater/spec/dependabot/dependency_group_engine_spec.rb

@@ -13,11 +13,20 @@
   include DependencyFileHelpers
 
   let(:dependency_group_engine) { described_class.from_job_config(job: job) }
-
+  let(:source) do
+    Dependabot::Source.new(
+      provider: "github",
+      repo: "gocardless/bump",
+      directory: "/",
+      branch: "master"
+    )
+  end
+  let(:security_updates_only) { false }
   let(:job) do
     instance_double(Dependabot::Job,
                     dependency_groups: dependency_groups_config,
-                    security_updates_only?: false)
+                    source: source,
+                    security_updates_only?: security_updates_only)
   end
 
   let(:dummy_pkg_a) do
@@ -108,6 +117,45 @@
     end
   end
 
+  context "when a job has grouped configured, and it's a version update" do
+    let(:dependency_groups_config) do
+      [
+        {
+          "name" => "group-a",
+          "rules" => {
+            "patterns" => ["dummy-pkg-*"],
+            "exclude-patterns" => ["dummy-pkg-b"]
+          }
+        },
+        {
+          "name" => "group-b",
+          "applies-to" => "security-updates",
+          "rules" => {
+            "patterns" => %w(dummy-pkg-b dummy-pkg-c)
+          }
+        }
+      ]
+    end
+
+    describe "::from_job_config" do
+      it "filters out the security update" do
+        expect(dependency_group_engine.dependency_groups.length).to eql(1)
+        expect(dependency_group_engine.dependency_groups.map(&:name)).to eql(%w(group-a))
+      end
+    end
+
+    context "when it's a security update" do
+      let(:security_updates_only) { true }
+
+      describe "::from_job_config" do
+        it "filters out the version update" do
+          expect(dependency_group_engine.dependency_groups.length).to eql(1)
+          expect(dependency_group_engine.dependency_groups.map(&:name)).to eql(%w(group-b))
+        end
+      end
+    end
+  end
+
   context "when a job has groups configured" do
     let(:dependency_groups_config) do
       [