Deprecate @service version and allow @OpenAPI.info to take all properties allowed by openapi

.chronus/changes/deprecate-service-version-2024-1-9-17-27-47.md

@@ -0,0 +1,8 @@
+---
+# Change versionKind to one of: internal, fix, dependencies, feature, deprecation, breaking
+changeKind: deprecation
+packages:
+  - "@typespec/compiler"
+---
+
+Deprecate `@service` version property. If wanting to describe a service versioning you can use the `@typespec/versioning` library. If wanting to describe the project version you can use the package.json version. For OpenAPI generation. the `@OpenAPI.info` nows decorator allows providing the document version.

.chronus/changes/deprecate-service-version-2024-1-9-17-40-35.md

@@ -0,0 +1,9 @@
+---
+# Change versionKind to one of: internal, fix, dependencies, feature, deprecation, breaking
+changeKind: feature
+packages:
+  - "@typespec/openapi"
+  - "@typespec/openapi3"
+---
+
+Add support for all properties of openapi `info` object on the `@info` decorator

.chronus/changes/deprecate-service-version-2024-1-9-19-36-46.md

@@ -0,0 +1,6 @@
+---
+# Change versionKind to one of: internal, fix, dependencies, feature, deprecation, breaking
+changeKind: internal
+packages:
+  - "@typespec/versioning"
+---

packages/compiler/src/lib/service.ts

@@ -1,11 +1,12 @@
 import { validateDecoratorUniqueOnNode } from "../core/decorator-utils.js";
-import { getTypeName } from "../core/index.js";
+import { getTypeName, reportDeprecated } from "../core/index.js";
 import { reportDiagnostic } from "../core/messages.js";
 import { Program } from "../core/program.js";
 import { DecoratorContext, Model, Namespace } from "../core/types.js";
 
 export interface ServiceDetails {
   title?: string;
+  /** @deprecated Service version is deprecated. If wanting to describe a service versioning you can use the `@typespec/versioning` library. If wanting to describe the project version you can use the package.json version */
   version?: string;
 }
 
@@ -68,7 +69,7 @@ export function $service(context: DecoratorContext, target: Namespace, options?:
 
   const serviceDetails: ServiceDetails = {};
   const title = options?.properties.get("title")?.type;
-  const version = options?.properties.get("version")?.type;
+  const versionProp = options?.properties.get("version");
   if (title) {
     if (title.kind === "String") {
       serviceDetails.title = title.value;
@@ -80,8 +81,15 @@ export function $service(context: DecoratorContext, target: Namespace, options?:
       });
     }
   }
-  if (version) {
+  if (versionProp) {
+    const version = versionProp.type;
+    reportDeprecated(
+      context.program,
+      "version: property is deprecated in @service. If wanting to describe a service versioning you can use the `@typespec/versioning` library. If wanting to describe the project version you can use the package.json version.",
+      versionProp
+    );
     if (version.kind === "String") {
+      // eslint-disable-next-line deprecation/deprecation
       serviceDetails.version = version.value;
     } else {
       reportDiagnostic(context.program, {

packages/compiler/test/decorators/service.test.ts

@@ -71,7 +71,10 @@ describe("compiler: service", () => {
 
   it("customize service version", async () => {
     const { S } = await runner.compile(`
-      @test @service({version: "1.2.3"}) namespace S {}
+      @test @service({
+        #suppress "deprecated" "test"
+        version: "1.2.3"
+      }) namespace S {}
 
     `);
 
@@ -91,7 +94,10 @@ describe("compiler: service", () => {
 
   it("emit diagnostic if service version is not a string", async () => {
     const diagnostics = await runner.diagnose(`
-      @test @service({version: 123}) namespace S {}
+      @test @service({
+        #suppress "deprecated" "test"
+        version: 123
+      }) namespace S {}
     `);
 
     expectDiagnostics(diagnostics, {

packages/openapi/lib/decorators.tsp

@@ -63,6 +63,15 @@ extern dec externalDocs(target: unknown, url: valueof string, description?: valu
 
 /** Additional information for the OpenAPI document. */
 model AdditionalInfo {
+  /** The title of the API. Overrides the `@service` title. */
+  title?: string;
+
+  /** A short summary of the API. Overrides the `@summary` provided on the service namespace. */
+  summary?: string;
+
+  /** The version of the OpenAPI document (which is distinct from the OpenAPI Specification version or the API implementation version). */
+  version?: string;
+
   /** A URL to the Terms of Service for the API. MUST be in the format of a URL. */
   termsOfService?: url;
 

packages/openapi/src/decorators.ts

@@ -1,5 +1,8 @@
 import {
   DecoratorContext,
+  getDoc,
+  getService,
+  getSummary,
   Model,
   Namespace,
   Operation,
@@ -128,11 +131,35 @@ export function getExternalDocs(program: Program, entity: Type): ExternalDocs |
 
 const infoKey = createStateSymbol("info");
 export function $info(context: DecoratorContext, entity: Namespace, model: Model) {
-  const [data, diagnostics] = typespecTypeToJson(model, context.getArgumentTarget(0)!);
+  const [data, diagnostics] = typespecTypeToJson<AdditionalInfo>(
+    model,
+    context.getArgumentTarget(0)!
+  );
   context.program.reportDiagnostics(diagnostics);
+  if (data === undefined) {
+    return;
+  }
   context.program.stateMap(infoKey).set(entity, data);
 }
 
 export function getInfo(program: Program, entity: Namespace): AdditionalInfo | undefined {
   return program.stateMap(infoKey).get(entity);
 }
+
+/** Resolve the info entry by merging data specified with `@service`, `@summary` and `@info`. */
+export function resolveInfo(program: Program, entity: Namespace): AdditionalInfo | undefined {
+  const info = getInfo(program, entity);
+  const service = getService(program, entity);
+  return omitUndefined({
+    ...info,
+    title: info?.title ?? service?.title,
+    // eslint-disable-next-line deprecation/deprecation
+    version: info?.version ?? service?.version,
+    summary: info?.summary ?? getSummary(program, entity),
+    description: info?.description ?? getDoc(program, entity),
+  });
+}
+
+function omitUndefined<T extends Record<string, unknown>>(data: T): T {
+  return Object.fromEntries(Object.entries(data).filter(([k, v]) => v !== undefined)) as any;
+}

packages/openapi/src/types.ts

@@ -4,6 +4,18 @@ export type ExtensionKey = `x-${string}`;
  * OpenAPI additional information
  */
 export interface AdditionalInfo {
+  /** The title of the API. Overrides the `@service` title. */
+  title?: string;
+
+  /** A short summary of the API. Overrides the `@summary` provided on the service namespace. */
+  summary?: string;
+
+  /** A description of the API. Overrides the `@doc` provided on the service namespace. */
+  description?: string;
+
+  /** The version of the OpenAPI document (which is distinct from the OpenAPI Specification version or the API implementation version). */
+  version?: string;
+
   /** A URL to the Terms of Service for the API. MUST be in the format of a URL. */
   termsOfService?: string;
 

packages/openapi/test/decorators.test.ts

@@ -2,7 +2,7 @@ import { Namespace } from "@typespec/compiler";
 import { BasicTestRunner, expectDiagnostics } from "@typespec/compiler/testing";
 import { deepStrictEqual } from "assert";
 import { beforeEach, describe, it } from "vitest";
-import { getExtensions, getExternalDocs, getInfo } from "../src/decorators.js";
+import { getExtensions, getExternalDocs, getInfo, resolveInfo } from "../src/decorators.js";
 import { createOpenAPITestRunner } from "./test-host.js";
 
 describe("openapi: decorators", () => {
@@ -178,6 +178,9 @@ describe("openapi: decorators", () => {
     it("set all properties", async () => {
       const { Service } = (await runner.compile(`
         @info({
+          title: "My API",
+          version: "1.0.0",
+          summary: "My API summary",
           termsOfService: "http://example.com/terms/",
           contact: {
             name: "API Support",
@@ -193,6 +196,9 @@ describe("openapi: decorators", () => {
       `)) as { Service: Namespace };
 
       deepStrictEqual(getInfo(runner.program, Service), {
+        title: "My API",
+        version: "1.0.0",
+        summary: "My API summary",
         termsOfService: "http://example.com/terms/",
         contact: {
           name: "API Support",
@@ -205,5 +211,37 @@ describe("openapi: decorators", () => {
         },
       });
     });
+
+    it("resolveInfo() merge with data from @service and @summary", async () => {
+      const { Service } = (await runner.compile(`
+        @service({ 
+          title: "Service API", 
+
+          #suppress "deprecated" "Test"
+          version: "2.0.0" 
+        })
+        @summary("My summary")
+        @info({
+          version: "1.0.0",
+          termsOfService: "http://example.com/terms/",
+        })
+        @test namespace Service {}
+      `)) as { Service: Namespace };
+
+      deepStrictEqual(resolveInfo(runner.program, Service), {
+        title: "Service API",
+        version: "1.0.0",
+        summary: "My summary",
+        termsOfService: "http://example.com/terms/",
+      });
+    });
+
+    it("resolveInfo() returns empty object if nothing is provided", async () => {
+      const { Service } = (await runner.compile(`
+        @test namespace Service {}
+      `)) as { Service: Namespace };
+
+      deepStrictEqual(resolveInfo(runner.program, Service), {});
+    });
   });
 });

packages/openapi3/src/openapi.ts

@@ -81,11 +81,11 @@ import {
 import {
   getExtensions,
   getExternalDocs,
-  getInfo,
   getOpenAPITypeName,
   getParameterKey,
   isDefaultResponse,
   isReadonlyProperty,
+  resolveInfo,
   resolveOperationId,
   shouldInline,
 } from "@typespec/openapi";
@@ -304,13 +304,13 @@ function createOAPIEmitter(
     const securitySchemes = getOpenAPISecuritySchemes(allHttpAuthentications);
     const security = getOpenAPISecurity(defaultAuth);
 
+    const info = resolveInfo(program, service.type);
     root = {
       openapi: "3.0.0",
       info: {
-        title: service.title ?? "(title)",
-        version: version ?? service.version ?? "0000-00-00",
-        description: getDoc(program, service.type),
-        ...getInfo(program, service.type),
+        title: "(title)",
+        ...info,
+        version: version ?? info?.version ?? "0.0.0",
       },
       externalDocs: getExternalDocs(program, service.type),
       tags: [],

packages/openapi3/test/info.test.ts

@@ -18,7 +18,10 @@ describe("openapi3: info", () => {
   it("set the service version with @service", async () => {
     const res = await openApiFor(
       `
-      @service({version: "1.2.3-test"})
+      @service({
+        #suppress "deprecated" "For test"
+        version: "1.2.3-test"
+      })
       namespace Foo {
         op test(): string;
       }
@@ -78,7 +81,7 @@ describe("openapi3: info", () => {
     );
     deepStrictEqual(res.info, {
       title: "(title)",
-      version: "0000-00-00",
+      version: "0.0.0",
       termsOfService: "http://example.com/terms/",
       contact: {
         name: "API Support",

packages/openapi3/test/output-file.test.ts

@@ -15,7 +15,7 @@ describe("openapi3: output file", () => {
     `  "openapi": "3.0.0",`,
     `  "info": {`,
     `    "title": "(title)",`,
-    `    "version": "0000-00-00"`,
+    `    "version": "0.0.0"`,
     `  },`,
     `  "tags": [],`,
     `  "paths": {},`,
@@ -28,7 +28,7 @@ describe("openapi3: output file", () => {
     `openapi: 3.0.0`,
     `info:`,
     `  title: (title)`,
-    `  version: 0000-00-00`,
+    `  version: 0.0.0`,
     `tags: []`,
     `paths: {}`,
     `components: {}`,

packages/samples/specs/multiple-types-union/main.tsp

@@ -3,7 +3,6 @@ import "@typespec/openapi";
 
 @service({
   title: "Pet Store Service",
-  version: "2021-03-25",
 })
 namespace PetStore;
 using TypeSpec.Http;

packages/samples/specs/petstore/petstore.tsp

@@ -6,7 +6,6 @@ using TypeSpec.Http;
 
 @service({
   title: "Pet Store Service",
-  version: "2021-03-25",
 })
 @doc("This is a sample server Petstore server.  You can find out more about Swagger at [http://swagger.io](http://swagger.io) or on [irc.freenode.net, #swagger](http://swagger.io/irc/).  For this sample, you can use the api key `special-key` to test the authorization filters.")
 namespace PetStore;

packages/samples/specs/rest/petstore/petstore.tsp

@@ -3,7 +3,6 @@ import "@typespec/openapi";
 
 @service({
   title: "Pet Store Service",
-  version: "2021-03-25",
 })
 namespace PetStore;
 

packages/samples/test/output/authentication/@typespec/openapi3/openapi.TypeSpec.InterfaceAuth.yaml

@@ -1,7 +1,7 @@
 openapi: 3.0.0
 info:
   title: Authenticated service with interface override
-  version: 0000-00-00
+  version: 0.0.0
 tags: []
 paths:
   /one:

packages/samples/test/output/authentication/@typespec/openapi3/openapi.TypeSpec.OperationAuth.yaml

@@ -1,7 +1,7 @@
 openapi: 3.0.0
 info:
   title: Authenticated service with method override
-  version: 0000-00-00
+  version: 0.0.0
 tags: []
 paths:
   /one:

packages/samples/test/output/authentication/@typespec/openapi3/openapi.TypeSpec.ServiceAuth.yaml

@@ -1,7 +1,7 @@
 openapi: 3.0.0
 info:
   title: Authenticated service
-  version: 0000-00-00
+  version: 0.0.0
 tags: []
 paths:
   /:

packages/samples/test/output/binary/@typespec/openapi3/openapi.yaml

@@ -1,7 +1,7 @@
 openapi: 3.0.0
 info:
   title: Binary sample
-  version: 0000-00-00
+  version: 0.0.0
 tags: []
 paths:
   /test/base64:

packages/samples/test/output/documentation/@typespec/openapi3/openapi.yaml

@@ -1,7 +1,7 @@
 openapi: 3.0.0
 info:
   title: Documentation sample
-  version: 0000-00-00
+  version: 0.0.0
 tags: []
 paths:
   /foo/DefaultDescriptions:

packages/samples/test/output/encoded-names/@typespec/openapi3/openapi.yaml

@@ -1,10 +1,10 @@
 openapi: 3.0.0
 info:
   title: Sample showcasing encoded names
-  version: 0000-00-00
   description: |-
     This example showcase providing a different name over the wire.
     In this example the `WithEncodedNames` model has a `notBefore` property that should get serialized as `nbf` when serialized as json.
+  version: 0.0.0
 tags: []
 paths:
   /:

packages/samples/test/output/encoding/@typespec/openapi3/openapi.yaml

@@ -1,7 +1,7 @@
 openapi: 3.0.0
 info:
   title: (title)
-  version: 0000-00-00
+  version: 0.0.0
 tags: []
 paths:
   /: