Add support for devcontainers ecosystem metrics collection (#11047)

* Add support for devcontainer ecosystem metrics collection

* Move version pattern into a variable

common/lib/dependabot/ecosystem.rb

@@ -12,6 +12,8 @@ class VersionManager
       extend T::Sig
       extend T::Helpers
 
+      DEFAULT_VERSION_PATTERN = /(\d+\.\d+(.\d+)*)/
+
       abstract!
       # Initialize version information for a package manager or language.
       # @param name [String] the name of the package manager or language (e.g., "bundler", "ruby").

devcontainers/lib/dependabot/devcontainers/file_parser.rb

@@ -6,6 +6,8 @@
 require "dependabot/file_parsers"
 require "dependabot/file_parsers/base"
 require "dependabot/devcontainers/version"
+require "dependabot/devcontainers/language"
+require "dependabot/devcontainers/package_manager"
 require "dependabot/devcontainers/file_parser/feature_dependency_parser"
 
 module Dependabot
@@ -28,6 +30,17 @@ def parse
         dependency_set.dependencies
       end
 
+      sig { returns(Ecosystem) }
+      def ecosystem
+        @ecosystem ||= T.let(begin
+          Ecosystem.new(
+            name: ECOSYSTEM,
+            package_manager: package_manager,
+            language: language
+          )
+        end, T.nilable(Dependabot::Ecosystem))
+      end
+
       private
 
       sig { override.void }
@@ -55,6 +68,44 @@ def config_dependency_files
           T.nilable(T::Array[Dependabot::DependencyFile])
         )
       end
+
+      sig { returns(Ecosystem::VersionManager) }
+      def package_manager
+        @package_manager ||= T.let(
+          PackageManager.new(T.must(devcontainer_version)),
+          T.nilable(Dependabot::Devcontainers::PackageManager)
+        )
+      end
+
+      sig { returns(T.nilable(Ecosystem::VersionManager)) }
+      def language
+        @language ||= T.let(
+          Language.new(T.must(node_version)),
+          T.nilable(Dependabot::Devcontainers::Language)
+        )
+      end
+
+      sig { returns(T.nilable(String)) }
+      def devcontainer_version
+        @devcontainer_version ||= T.let(
+          begin
+            version = SharedHelpers.run_shell_command("devcontainer --version")
+            version.match(Dependabot::Ecosystem::VersionManager::DEFAULT_VERSION_PATTERN)&.captures&.first
+          end,
+          T.nilable(String)
+        )
+      end
+
+      sig { returns(T.nilable(String)) }
+      def node_version
+        @node_version ||= T.let(
+          begin
+            version = SharedHelpers.run_shell_command("node --version")
+            version.match(Dependabot::Ecosystem::VersionManager::DEFAULT_VERSION_PATTERN)&.captures&.first
+          end,
+          T.nilable(String)
+        )
+      end
     end
   end
 end

devcontainers/lib/dependabot/devcontainers/language.rb

@@ -0,0 +1,21 @@
+# typed: strong
+# frozen_string_literal: true
+
+require "sorbet-runtime"
+require "dependabot/ecosystem"
+require "dependabot/devcontainers/version"
+
+module Dependabot
+  module Devcontainers
+    LANGUAGE = "node"
+
+    class Language < Dependabot::Ecosystem::VersionManager
+      extend T::Sig
+
+      sig { params(raw_version: String).void }
+      def initialize(raw_version)
+        super(LANGUAGE, Version.new(raw_version))
+      end
+    end
+  end
+end

devcontainers/lib/dependabot/devcontainers/package_manager.rb

@@ -0,0 +1,41 @@
+# typed: strong
+# frozen_string_literal: true
+
+require "sorbet-runtime"
+require "dependabot/ecosystem"
+require "dependabot/devcontainers/version"
+
+module Dependabot
+  module Devcontainers
+    ECOSYSTEM = "devcontainers"
+    PACKAGE_MANAGER = "devcontainers"
+    SUPPORTED_DEVCONTAINER_VERSIONS = T.let([].freeze, T::Array[Dependabot::Version])
+
+    # When a version is going to be unsupported, it will be added here
+    DEPRECATED_DEVCONTAINER_VERSIONS = T.let([].freeze, T::Array[Dependabot::Version])
+
+    class PackageManager < Dependabot::Ecosystem::VersionManager
+      extend T::Sig
+
+      sig { params(raw_version: String).void }
+      def initialize(raw_version)
+        super(
+          PACKAGE_MANAGER,
+          Version.new(raw_version),
+          DEPRECATED_DEVCONTAINER_VERSIONS,
+          SUPPORTED_DEVCONTAINER_VERSIONS
+        )
+      end
+
+      sig { returns(T::Boolean) }
+      def deprecated?
+        false
+      end
+
+      sig { returns(T::Boolean) }
+      def unsupported?
+        false
+      end
+    end
+  end
+end

devcontainers/spec/dependabot/devcontainers/file_parser_spec.rb

@@ -217,4 +217,35 @@
       expect(dependencies).to be_empty
     end
   end
+
+  describe "#ecosystem" do
+    subject(:ecosystem) { parser.ecosystem }
+
+    let(:project_name) { "config_in_root" }
+    let(:directory) { "/" }
+
+    it "has the correct name" do
+      expect(ecosystem.name).to eq "devcontainers"
+    end
+
+    describe "#package_manager" do
+      subject(:package_manager) { ecosystem.package_manager }
+
+      it "returns the correct package manager" do
+        expect(package_manager.name).to eq "devcontainers"
+        expect(package_manager.requirement).to be_nil
+        expect(package_manager.version.to_s).to eq "0.72.0"
+      end
+    end
+
+    describe "#language" do
+      subject(:language) { ecosystem.language }
+
+      it "returns the correct language" do
+        expect(language.name).to eq "node"
+        expect(language.requirement).to be_nil
+        expect(language.version.to_s).to eq "18.20.5"
+      end
+    end
+  end
 end

devcontainers/spec/dependabot/devcontainers/language_spec.rb

@@ -0,0 +1,36 @@
+# typed: false
+# frozen_string_literal: true
+
+require "dependabot/devcontainers/language"
+require "dependabot/ecosystem"
+require "spec_helper"
+
+RSpec.describe Dependabot::Devcontainers::Language do
+  subject(:language) { described_class.new(version) }
+
+  let(:version) { "1.17.3" }
+
+  describe "#version" do
+    it "returns the version" do
+      expect(language.version.to_s).to eq version
+    end
+  end
+
+  describe "#name" do
+    it "returns the name" do
+      expect(language.name).to eq(Dependabot::Devcontainers::LANGUAGE)
+    end
+  end
+
+  describe "#unsupported?" do
+    it "returns false by default" do
+      expect(language.unsupported?).to be false
+    end
+  end
+
+  describe "#deprecated?" do
+    it "returns false by default" do
+      expect(language.deprecated?).to be false
+    end
+  end
+end

devcontainers/spec/dependabot/devcontainers/package_manager_spec.rb

@@ -0,0 +1,36 @@
+# typed: false
+# frozen_string_literal: true
+
+require "dependabot/devcontainers/package_manager"
+require "dependabot/ecosystem"
+require "spec_helper"
+
+RSpec.describe Dependabot::Devcontainers::PackageManager do
+  subject(:package_manager) { described_class.new(version) }
+
+  let(:version) { "2.1.1" }
+
+  describe "#version" do
+    it "returns the version" do
+      expect(package_manager.version.to_s).to eq version
+    end
+  end
+
+  describe "#name" do
+    it "returns the name" do
+      expect(package_manager.name).to eq(Dependabot::Devcontainers::PACKAGE_MANAGER)
+    end
+  end
+
+  describe "#deprecated_versions" do
+    it "returns deprecated versions" do
+      expect(package_manager.deprecated_versions).to eq(Dependabot::Devcontainers::DEPRECATED_DEVCONTAINER_VERSIONS)
+    end
+  end
+
+  describe "#supported_versions" do
+    it "returns supported versions" do
+      expect(package_manager.supported_versions).to eq(Dependabot::Devcontainers::SUPPORTED_DEVCONTAINER_VERSIONS)
+    end
+  end
+end