feat: add ruby4.0 runtime (#8931)

* feat: add ruby4.0 runtime

* fix: add extra ruby4.0 references

Author: reedham-aws

samcli/commands/build/command.py

@@ -59,7 +59,7 @@
   ------------------
   1. Python 3.8, 3.9, 3.10, 3.11, 3.12, 3.13, 3.14 using PIP\n
   2. Nodejs 24.x, 22.x, 20.x, 18.x, 16.x, 14.x, 12.x using NPM\n
-  3. Ruby 3.2, 3.3, 3.4 using Bundler\n
+  3. Ruby 3.2, 3.3, 3.4, 4.0 using Bundler\n
   4. Java 8, Java 11, Java 17, Java 21, Java 25 using Gradle and Maven\n
   5. Dotnet6, Dotnet8, Dotnet10 using Dotnet CLI\n
   6. Go 1.x using Go Modules (without --use-container)\n

samcli/lib/build/workflow_config.py

@@ -102,6 +102,7 @@ def get_layer_subfolder(build_workflow: str) -> str:
         "ruby3.2": "ruby/lib",
         "ruby3.3": "ruby/lib",
         "ruby3.4": "ruby/lib",
+        "ruby4.0": "ruby/lib",
         "java11": "java",
         "java8.al2": "java",
         "java17": "java",
@@ -175,6 +176,7 @@ def get_workflow_config(
         "ruby3.2": BasicWorkflowSelector(RUBY_BUNDLER_CONFIG),
         "ruby3.3": BasicWorkflowSelector(RUBY_BUNDLER_CONFIG),
         "ruby3.4": BasicWorkflowSelector(RUBY_BUNDLER_CONFIG),
+        "ruby4.0": BasicWorkflowSelector(RUBY_BUNDLER_CONFIG),
         "dotnet6": BasicWorkflowSelector(DOTNET_CLIPACKAGE_CONFIG),
         "dotnet8": BasicWorkflowSelector(DOTNET_CLIPACKAGE_CONFIG),
         "dotnet10": BasicWorkflowSelector(DOTNET_CLIPACKAGE_CONFIG),

samcli/lib/utils/architecture.py

@@ -30,6 +30,7 @@
     "ruby3.2": [ARM64, X86_64],
     "ruby3.3": [ARM64, X86_64],
     "ruby3.4": [ARM64, X86_64],
+    "ruby4.0": [ARM64, X86_64],
     "java8.al2": [ARM64, X86_64],
     "java11": [ARM64, X86_64],
     "java17": [ARM64, X86_64],

samcli/local/common/runtime_template.py

@@ -32,7 +32,7 @@
     ],
     "ruby": [
         {
-            "runtimes": ["ruby3.4", "ruby3.3", "ruby3.2"],
+            "runtimes": ["ruby4.0", "ruby3.4", "ruby3.3", "ruby3.2"],
             "dependency_manager": "bundler",
             "init_location": os.path.join(_templates, "cookiecutter-aws-sam-hello-ruby"),
             "build": True,
@@ -137,6 +137,7 @@ def get_local_lambda_images_location(mapping, runtime):
     "python3.9",
     "python3.8",
     # ruby runtimes in descending order
+    "ruby4.0",
     "ruby3.4",
     "ruby3.3",
     "ruby3.2",
@@ -167,6 +168,7 @@ def get_local_lambda_images_location(mapping, runtime):
     "python3.10": "amazon/python3.10-base",
     "python3.9": "amazon/python3.9-base",
     "python3.8": "amazon/python3.8-base",
+    "ruby4.0": "amazon/ruby4.0-base",
     "ruby3.4": "amazon/ruby3.4-base",
     "ruby3.3": "amazon/ruby3.3-base",
     "ruby3.2": "amazon/ruby3.2-base",

samcli/local/docker/lambda_image.py

@@ -56,6 +56,7 @@ class Runtime(Enum):
     ruby32 = "ruby3.2"
     ruby33 = "ruby3.3"
     ruby34 = "ruby3.4"
+    ruby40 = "ruby4.0"
     java8al2 = "java8.al2"
     java11 = "java11"
     java17 = "java17"

schema/samcli.json

@@ -395,7 +395,7 @@ def _prepare_application_environment(self, runtime):
         └── template.yaml
         """
         # copy .ruby-version to the root of the project
-        ruby_runtime_path = runtime.replace(".", "").title()  # ruby3.X to Ruby3X
+        ruby_runtime_path = runtime.replace(".", "").title()  # rubyX.Y to RubyXY
         shutil.copyfile(
             Path(self.template_path).parent.joinpath(ruby_runtime_path, ".ruby-version"),
             Path(self.working_dir).joinpath(".ruby-version"),

tests/integration/buildcmd/test_build_cmd.py

@@ -121,7 +121,7 @@ def test_raise_exception_for_bad_specified_workflow(self, runtime):
         with self.assertRaises(UnsupportedBuilderException):
             get_workflow_config(runtime, self.code_dir, self.project_dir, specified_workflow="Wrong")
 
-    @parameterized.expand([("ruby3.2",), ("ruby3.3",), ("ruby3.4",)])
+    @parameterized.expand([("ruby3.2",), ("ruby3.3",), ("ruby3.4",), ("ruby4.0",)])
     def test_must_work_for_ruby(self, runtime):
         result = get_workflow_config(runtime, self.code_dir, self.project_dir)
         self.assertEqual(result.language, "ruby")