[tsp-client] Add support for arm swagger->tsp conversion (#7881)

* add support for arm swagger->tsp

* update docs

* feedback

tools/tsp-client/README.md

@@ -45,6 +45,7 @@ Convert an existing swagger specification to a TypeSpec project. This command sh
 
 ## Options
 ```
+  --arm                     Convert ARM swagger specification to TypeSpec       [boolean]
   -c, --tsp-config          The tspconfig.yaml file to use                      [string]
   --commit                  Commit to be used for project init or update        [string]
   -d, --debug               Enable debug logging                                [boolean]
@@ -55,7 +56,7 @@ Convert an existing swagger specification to a TypeSpec project. This command sh
   --skip-sync-and-generate  Skip sync and generate during project init          [boolean]
   --swagger-readme          Path or url to swagger readme file                  [string]
   -o, --output-dir          Specify an alternate output directory for the 
-                            generated files. Default is your local directory.   [string]
+                            generated files. Default is your current directory  [string]
   --repo                    Repository where the project is defined for init 
                             or update                                           [string]
   -v, --version             Show version number                                 [boolean]

tools/tsp-client/src/index.ts

@@ -1,16 +1,15 @@
-import { npmCommand } from "./npm.js";
+import { npmCommand, npxCommand } from "./npm.js";
 import { createTempDirectory, removeDirectory, readTspLocation, getEmitterFromRepoConfig } from "./fs.js";
 import { Logger, printBanner, enableDebug, printVersion } from "./log.js";
 import { TspLocation, compileTsp, discoverMainFile, resolveTspConfigUrl } from "./typespec.js";
 import { getOptions } from "./options.js";
-import { mkdir, writeFile, cp, readFile, access, stat } from "node:fs/promises";
+import { mkdir, writeFile, cp, readFile, access, stat, rename } from "node:fs/promises";
 import { addSpecFiles, checkoutCommit, cloneRepo, getRepoRoot, sparseCheckout } from "./git.js";
 import { doesFileExist } from "./network.js";
 import { parse as parseYaml } from "yaml";
 import { joinPaths, normalizePath, resolvePath } from "@typespec/compiler";
 import { formatAdditionalDirectories, getAdditionalDirectoryName } from "./utils.js";
 import { resolve } from "node:path";
-import { spawn } from "node:child_process";
 import { config as dotenvConfig } from "dotenv";
 
 
@@ -240,24 +239,25 @@ async function generate({
 }
 
 
-async function convert(readme: string, outputDir: string): Promise<void> {
-  return new Promise((resolve, reject) => {
-      const autorest = spawn("npx", ["autorest", readme, "--openapi-to-typespec", "--use=@autorest/openapi-to-typespec", `--output-folder=${outputDir}`], {
-          cwd: outputDir,
-          stdio: "inherit",
-          shell: true,
-      });
-      autorest.once("exit", (code) => {
-          if (code === 0) {
-              resolve();
-          } else {
-              reject(new Error(`openapi to typespec conversion failed exited with code ${code}`));
-          }
-      });
-      autorest.once("error", (err) => {
-          reject(new Error(`openapi to typespec conversion failed with error: ${err}`));
-      });
-  });
+async function convert(readme: string, outputDir: string, arm?: boolean): Promise<void> {
+  const args = ["autorest", "--openapi-to-typespec", "--csharp=false", `--output-folder="${outputDir}"`, "--use=@autorest/openapi-to-typespec", `"${readme}"`];
+  if (arm) {
+    const generateMetadataCmd = ["autorest", "--csharp", "--max-memory-size=8192", '--use="https://aka.ms/azsdk/openapi-to-typespec-csharp"', `--output-folder="${outputDir}"`, "--mgmt-debug.only-generate-metadata", "--azure-arm", "--skip-csproj", `"${readme}"`];
+    try {
+      await npxCommand(outputDir, generateMetadataCmd);
+    } catch (err) {
+      Logger.error(`Error occurred while attempting to generate ARM metadata: ${err}`);
+      process.exit(1);
+    }
+    try {
+      await rename(joinPaths(outputDir, "metadata.json"), joinPaths(outputDir, "resources.json"));
+    } catch (err) {
+      Logger.error(`Error occurred while attempting to rename metadata.json to resources.json: ${err}`);
+      process.exit(1);
+    }
+    args.push("--isArm");
+  }
+  return await npxCommand(outputDir, args);
 }
 
 
@@ -330,7 +330,7 @@ async function main() {
         if (await doesFileExist(readme)) {
           readme = normalizePath(resolve(readme));
         }
-        await convert(readme, rootUrl);
+        await convert(readme, rootUrl, options.arm);
         break;
       default:
         throw new Error(`Unknown command: ${options.command}`);

tools/tsp-client/src/log.ts

@@ -70,6 +70,7 @@ Commands:
   convert     Convert a swagger specification to TypeSpec               [string]
 
 Options:
+  --arm                     Convert ARM swagger specification to TypeSpec       [boolean]
   -c, --tsp-config          The tspconfig.yaml file to use                      [string]
   --commit                  Commit to be used for project init or update        [string]
   -d, --debug               Enable debug logging                                [boolean]

tools/tsp-client/src/npm.ts

@@ -39,6 +39,26 @@ export async function npmCommand(workingDir: string, args: string[]): Promise<vo
   });
 }
 
+export async function npxCommand(workingDir: string, args: string[]): Promise<void> {
+  return new Promise((resolve, reject) => {
+    const npm = spawn("npx", args, {
+      cwd: workingDir,
+      stdio: "inherit",
+      shell: true,
+    });
+    npm.once("exit", (code) => {
+      if (code === 0) {
+        resolve();
+      } else {
+        reject(new Error(`npx ${args[0]} failed exited with code ${code}`));
+      }
+    });
+    npm.once("error", (err) => {
+      reject(new Error(`npx ${args[0]} failed with error: ${err}`));
+    });
+  });
+}
+
 let packageVersion: string;
 export async function getPackageVersion(): Promise<string> {
   if (!packageVersion) {

tools/tsp-client/src/options.ts

@@ -18,6 +18,7 @@ export interface Options {
   localSpecRepo?: string;
   emitterOptions?: string;
   swaggerReadme?: string;
+  arm: boolean;
 }
 
 export async function getOptions(): Promise<Options> {
@@ -64,6 +65,9 @@ export async function getOptions(): Promise<Options> {
       },
       ["swagger-readme"]: {
         type: "string",
+      },
+      arm: {
+        type: "boolean",
       }
     },
   });
@@ -165,5 +169,6 @@ export async function getOptions(): Promise<Options> {
     localSpecRepo: values["local-spec-repo"],
     emitterOptions: values["emitter-options"],
     swaggerReadme: values["swagger-readme"],
+    arm: values.arm ?? false,
   };
 }