Add generateTypeDoc setting for typedoc support (smithy-lang#1091)

Breaking change: typedoc support was previously generated by default,
but this change makes typedoc support opt-in through the
`generateTypeDoc` boolean setting.

smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/DirectedTypeScriptCodegen.java

@@ -71,7 +71,6 @@ final class DirectedTypeScriptCodegen
      * A mapping of static resource files to copy over to a new filename.
      */
     private static final Map<String, String> STATIC_FILE_COPIES = MapUtils.of(
-            "typedoc.json", "typedoc.json",
             "tsconfig.json", "tsconfig.json",
             "tsconfig.cjs.json", "tsconfig.cjs.json",
             "tsconfig.es.json", "tsconfig.es.json",

smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/PackageJsonGenerator.java

@@ -31,6 +31,7 @@
 final class PackageJsonGenerator {
 
     public static final String PACKAGE_JSON_FILENAME = "package.json";
+    public static final String TYPEDOC_FILE_NAME = "typedoc.json";
     public static final String VITEST_CONFIG_FILENAME = "vite.config.js";
 
     private PackageJsonGenerator() {}
@@ -67,6 +68,24 @@ static void writePackageJson(
                 PackageJsonGenerator.class.getResourceAsStream(VITEST_CONFIG_FILENAME)));
         }
 
+        if (settings.generateTypeDoc()) {
+            // Add typedoc to the "devDependencies" if not present
+            if (devDeps.getMember(TypeScriptDependency.TYPEDOC.packageName).isEmpty()) {
+                devDeps = devDeps.withMember(
+                    TypeScriptDependency.TYPEDOC.packageName,
+                    TypeScriptDependency.TYPEDOC.version);
+                node = node.withMember("devDependencies", devDeps);
+            }
+
+            // Add build:docs script
+            ObjectNode scripts = node.getObjectMember("scripts").orElse(Node.objectNode());
+            scripts = scripts.withMember("build:docs", "typedoc");
+            node = node.withMember("scripts", scripts);
+
+            // Write typedoc.json
+            manifest.writeFile(TYPEDOC_FILE_NAME, PackageJsonGenerator.class, TYPEDOC_FILE_NAME);
+        }
+
         // These are currently only generated for clients, but they may be needed for ssdk as well.
         if (settings.generateClient()) {
             // Add the Node vs Browser hook.

smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/TypeScriptDependency.java

@@ -129,6 +129,9 @@ public enum TypeScriptDependency implements Dependency {
     // Conditionally added when specs have been generated.
     VITEST("devDependencies", "vitest", "^0.33.0", false),
 
+    // Conditionally added when `generateTypeDoc` is true.
+    TYPEDOC("devDependencies", "typedoc", "0.23.23", false),
+
     // Server dependency for SSDKs
     SERVER_COMMON("dependencies", "@aws-smithy/server-common", false);
 

smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/TypeScriptSettings.java

@@ -58,6 +58,7 @@ public final class TypeScriptSettings {
     private static final String PACKAGE_MANAGER = "packageManager";
     private static final String CREATE_DEFAULT_README = "createDefaultReadme";
     private static final String EXPERIMENTAL_IDENTITY_AND_AUTH = "experimentalIdentityAndAuth";
+    private static final String GENERATE_TYPEDOC = "generateTypeDoc";
 
     private String packageName;
     private String packageDescription = "";
@@ -75,6 +76,7 @@ public final class TypeScriptSettings {
     private PackageManager packageManager = PackageManager.YARN;
     private boolean createDefaultReadme = false;
     private boolean experimentalIdentityAndAuth = false;
+    private boolean generateTypeDoc = false;
 
     @Deprecated
     public static TypeScriptSettings from(Model model, ObjectNode config) {
@@ -110,6 +112,8 @@ public static TypeScriptSettings from(Model model, ObjectNode config, ArtifactTy
                 config.getBooleanMember(CREATE_DEFAULT_README).map(BooleanNode::getValue).orElse(false));
         settings.setExperimentalIdentityAndAuth(
                 config.getBooleanMemberOrDefault(EXPERIMENTAL_IDENTITY_AND_AUTH, false));
+        settings.setGenerateTypeDoc(
+                config.getBooleanMember(GENERATE_TYPEDOC).map(BooleanNode::getValue).orElse(false));
         settings.setPackageManager(
                 config.getStringMember(PACKAGE_MANAGER)
                     .map(s -> PackageManager.fromString(s.getValue()))
@@ -380,6 +384,24 @@ public void setExperimentalIdentityAndAuth(boolean experimentalIdentityAndAuth)
         this.experimentalIdentityAndAuth = experimentalIdentityAndAuth;
     }
 
+    /**
+     * Returns whether to generate typedoc support.
+     *
+     * @return whether to generate typedoc support. Default: false
+     */
+    public boolean generateTypeDoc() {
+        return generateTypeDoc;
+    }
+
+    /**
+     * Sets whether to generate typedoc support.
+     *
+     * @param generateTypeDoc whether to generate typedoc support
+     */
+    public void setGenerateTypeDoc(boolean generateTypeDoc) {
+        this.generateTypeDoc = generateTypeDoc;
+    }
+
     /**
      * Gets the corresponding {@link ServiceShape} from a model.
      *
@@ -468,11 +490,11 @@ public enum ArtifactType {
         CLIENT(SymbolVisitor::new,
                 Arrays.asList(PACKAGE, PACKAGE_DESCRIPTION, PACKAGE_JSON, PACKAGE_VERSION, PACKAGE_MANAGER,
                               SERVICE, PROTOCOL, PRIVATE, REQUIRED_MEMBER_MODE,
-                              CREATE_DEFAULT_README, EXPERIMENTAL_IDENTITY_AND_AUTH)),
+                              CREATE_DEFAULT_README, EXPERIMENTAL_IDENTITY_AND_AUTH, GENERATE_TYPEDOC)),
         SSDK((m, s) -> new ServerSymbolVisitor(m, new SymbolVisitor(m, s)),
                 Arrays.asList(PACKAGE, PACKAGE_DESCRIPTION, PACKAGE_JSON, PACKAGE_VERSION, PACKAGE_MANAGER,
                               SERVICE, PROTOCOL, PRIVATE, REQUIRED_MEMBER_MODE,
-                              DISABLE_DEFAULT_VALIDATION, CREATE_DEFAULT_README));
+                              DISABLE_DEFAULT_VALIDATION, CREATE_DEFAULT_README, GENERATE_TYPEDOC));
 
         private final BiFunction<Model, TypeScriptSettings, SymbolProvider> symbolProviderFactory;
         private final List<String> configProperties;

smithy-typescript-codegen/src/main/resources/software/amazon/smithy/typescript/codegen/base-package.json

@@ -5,7 +5,6 @@
   "scripts": {
     "build": "concurrently '${packageManager}:build:cjs' '${packageManager}:build:es' '${packageManager}:build:types'",
     "build:cjs": "tsc -p tsconfig.cjs.json",
-    "build:docs": "typedoc",
     "build:es": "tsc -p tsconfig.es.json",
     "build:types": "tsc -p tsconfig.types.json",
     "build:types:downlevel": "downlevel-dts dist-types dist-types/ts3.4",
@@ -24,7 +23,6 @@
     "concurrently": "7.0.0",
     "downlevel-dts": "0.10.1",
     "rimraf": "^3.0.0",
-    "typedoc": "0.23.23",
     "typescript": "~4.9.5"
   },
   "engines": {

smithy-typescript-codegen/src/test/java/software/amazon/smithy/typescript/codegen/PackageJsonGeneratorTest.java

@@ -16,6 +16,7 @@
 
 import static org.hamcrest.MatcherAssert.assertThat;
 import static org.hamcrest.Matchers.containsString;
+import static org.hamcrest.Matchers.not;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 
 class PackageJsonGeneratorTest {
@@ -126,6 +127,71 @@ void expectTestScriptAndTestConfigToBeAdded() {
         assertThat(configString, containsString("include: ['**/*.spec.ts']"));
     }
 
+    @Test
+    void expectTypeDocToNotBeAdded() {
+        Model model = Model.assembler()
+                .addImport(getClass().getResource("simple-service.smithy"))
+                .assemble()
+                .unwrap();
+
+        MockManifest manifest = new MockManifest();
+
+        ObjectNode settings = Node.objectNodeBuilder()
+                .withMember("service", Node.from("smithy.example#Example"))
+                .withMember("package", Node.from("example"))
+                .withMember("packageVersion", Node.from("1.0.0"))
+                .withMember("packageDescription", Node.from("example description"))
+                .build();
+
+        final TypeScriptSettings typeScriptSettings = TypeScriptSettings.from(model, settings,
+                TypeScriptSettings.ArtifactType.CLIENT);
+
+        Map<String, Map<String, SymbolDependency>> deps = new HashMap<>();
+
+        PackageJsonGenerator.writePackageJson(typeScriptSettings, manifest, deps);
+
+        assertTrue(manifest.getFileString(PackageJsonGenerator.PACKAGE_JSON_FILENAME).isPresent());
+        assertTrue(manifest.getFileString(PackageJsonGenerator.TYPEDOC_FILE_NAME).isEmpty());
+
+        String packageJson = manifest.getFileString(PackageJsonGenerator.PACKAGE_JSON_FILENAME).get();
+
+        assertThat(packageJson, not(containsString("\"build:docs\": \"typedoc\"")));
+        assertThat(packageJson, not(containsString("\"typedoc\": \"0.23.23\"")));
+    }
+
+    @Test
+    void expectTypeDocToBeAddedWithGenerateTypeDoc() {
+        Model model = Model.assembler()
+                .addImport(getClass().getResource("simple-service.smithy"))
+                .assemble()
+                .unwrap();
+
+        MockManifest manifest = new MockManifest();
+
+        ObjectNode settings = Node.objectNodeBuilder()
+                .withMember("service", Node.from("smithy.example#Example"))
+                .withMember("package", Node.from("example"))
+                .withMember("packageVersion", Node.from("1.0.0"))
+                .withMember("packageDescription", Node.from("example description"))
+                .withMember("generateTypeDoc", true)
+                .build();
+
+        final TypeScriptSettings typeScriptSettings = TypeScriptSettings.from(model, settings,
+                TypeScriptSettings.ArtifactType.CLIENT);
+
+        Map<String, Map<String, SymbolDependency>> deps = new HashMap<>();
+
+        PackageJsonGenerator.writePackageJson(typeScriptSettings, manifest, deps);
+
+        assertTrue(manifest.getFileString(PackageJsonGenerator.PACKAGE_JSON_FILENAME).isPresent());
+        assertTrue(manifest.getFileString(PackageJsonGenerator.TYPEDOC_FILE_NAME).isPresent());
+
+        String packageJson = manifest.getFileString(PackageJsonGenerator.PACKAGE_JSON_FILENAME).get();
+
+        assertThat(packageJson, containsString("\"build:docs\": \"typedoc\""));
+        assertThat(packageJson, containsString("\"typedoc\": \"0.23.23\""));
+    }
+
     private static Stream<Arguments> providePackageDescriptionTestCases() {
         return Stream.of(
                 Arguments.of(TypeScriptSettings.ArtifactType.SSDK, "example server"),