feat: Add sources content flag to supported esbuild options (aws#439)

Author: mildaniel

aws_lambda_builders/workflows/nodejs_npm_esbuild/esbuild.py

@@ -114,6 +114,7 @@ def run(self, args, cwd=None):
     "target",
     "format",
     "main_fields",
+    "sources_content",
 ]
 
 # Multi-value types (--external:axios --external:aws-sdk)

tests/integration/workflows/nodejs_npm_esbuild/test_nodejs_npm_with_esbuild.py

@@ -1,3 +1,4 @@
+import json
 import os
 import shutil
 import tempfile
@@ -414,6 +415,29 @@ def test_esbuild_produces_mjs_output_files(self, runtime):
         output_files = set(os.listdir(self.artifacts_dir))
         self.assertEqual(expected_files, output_files)
 
+    @parameterized.expand([("nodejs12.x",), ("nodejs14.x",), ("nodejs16.x",), ("nodejs18.x",)])
+    def test_esbuild_produces_sourcemap_without_source_contents(self, runtime):
+        source_dir = os.path.join(self.TEST_DATA_FOLDER, "with-deps-esbuild")
+        options = {"entry_points": ["included.js"], "sourcemap": True, "sources_content": "false"}
+
+        self.builder.build(
+            source_dir,
+            self.artifacts_dir,
+            self.scratch_dir,
+            os.path.join(source_dir, "package.json"),
+            runtime=runtime,
+            options=options,
+            experimental_flags=[],
+            executable_search_paths=[self.binpath],
+        )
+
+        expected_files = {"included.js", "included.js.map"}
+        output_files = set(os.listdir(self.artifacts_dir))
+        with open(Path(self.artifacts_dir, "included.js.map")) as f:
+            sourcemap = json.load(f)
+        self.assertNotIn("sourcesContent", sourcemap)
+        self.assertEqual(expected_files, output_files)
+
     @parameterized.expand([("nodejs12.x",), ("nodejs14.x",), ("nodejs16.x",), ("nodejs18.x",)])
     def test_esbuild_can_build_in_source(self, runtime):
         options = {"entry_points": ["included.js"]}

tests/unit/workflows/nodejs_npm_esbuild/test_esbuild.py

@@ -196,6 +196,7 @@ def test_builds_args_from_config(self, osutils_mock):
         bundler_config = {
             "minify": True,
             "sourcemap": False,
+            "sources_content": "false",
             "format": "esm",
             "target": "node14",
             "loader": [".proto=text", ".json=js"],
@@ -216,6 +217,7 @@ def test_builds_args_from_config(self, osutils_mock):
                 "--target=node14",
                 "--format=esm",
                 "--main-fields=module,main",
+                "--sources-content=false",
                 "--external:aws-sdk",
                 "--external:axios",
                 "--loader:.proto=text",