feat: add proto list template (#24)

* add proto list template

* feedback

* resolve conflict

* gts fix

* add test for multiple protos list generation

.gitignore

@@ -15,3 +15,4 @@ pbjs-genfiles/
 .DS_Store
 .idea
 .baseline-test-out
+.multi-proto-test-out

templates/typescript_gapic/src/$version/$service_proto_list.json.njk

@@ -0,0 +1 @@
+{{ api.protoFilesToGenerateJSON | safe}}

typescript/src/schema/api.ts

@@ -52,4 +52,14 @@ export class API {
       proto => this.protos[proto].fileToGenerate
     );
   }
+
+  get protoFilesToGenerateJSON() {
+    return JSON.stringify(
+      this.filesToGenerate.map(file => {
+        return `../../protos/${file}`;
+      }),
+      null,
+      '  '
+    );
+  }
 }

typescript/test/multi_proto.ts

@@ -0,0 +1,89 @@
+// Copyright 2019 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+import * as assert from 'assert';
+import { execSync } from 'child_process';
+import * as fs from 'fs';
+import * as path from 'path';
+import * as rimraf from 'rimraf';
+
+const cwd = process.cwd();
+
+const OUTPUT_DIR = path.join(cwd, '.multi-proto-test-out');
+const GENERATED_PROTO_FILE = path.join(
+  OUTPUT_DIR,
+  'src',
+  'v1',
+  'keymanagementservice_proto_list.json'
+);
+const GOOGLE_GAX_PROTOS_DIR = path.join(
+  cwd,
+  'node_modules',
+  'google-gax',
+  'protos'
+);
+const PROTOS_DIR = path.join(cwd, 'build', 'test', 'protos');
+const KMS_PROTO_FILE = path.join(
+  PROTOS_DIR,
+  'google',
+  'kms',
+  'v1',
+  'service.proto'
+);
+
+const PROTOLIST_LIBRARY_BASELINE = path.join(
+  cwd,
+  'typescript',
+  'test',
+  'testdata',
+  'keymanagementservice_proto_list.json'
+);
+const SRCDIR = path.join(cwd, 'build', 'src');
+const CLI = path.join(SRCDIR, 'cli.js');
+const PLUGIN = path.join(SRCDIR, 'protoc-gen-typescript_gapic');
+
+describe('Proto List Generate Test', () => {
+  describe('Generate Client library', () => {
+    it('Generated proto list should have same output with baseline.', function() {
+      this.timeout(10000);
+      if (fs.existsSync(OUTPUT_DIR)) {
+        rimraf.sync(OUTPUT_DIR);
+      }
+      fs.mkdirSync(OUTPUT_DIR);
+
+      if (fs.existsSync(PLUGIN)) {
+        rimraf.sync(PLUGIN);
+      }
+      fs.copyFileSync(CLI, PLUGIN);
+      process.env['PATH'] = SRCDIR + path.delimiter + process.env['PATH'];
+
+      try {
+        execSync(`chmod +x ${PLUGIN}`);
+      } catch (err) {
+        console.warn(`Failed to chmod +x ${PLUGIN}: ${err}. Ignoring...`);
+      }
+
+      execSync(
+        `protoc --typescript_gapic_out=${OUTPUT_DIR} ` +
+          `-I${GOOGLE_GAX_PROTOS_DIR} ` +
+          `-I${PROTOS_DIR} ` +
+          KMS_PROTO_FILE
+      );
+      assert.strictEqual(
+        fs.readFileSync(GENERATED_PROTO_FILE).toString(),
+        fs.readFileSync(PROTOLIST_LIBRARY_BASELINE).toString()
+      );
+    });
+  });
+});