chore: initial commit

.gitignore

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+.DS_Store
+.vscode
+build/
+node_modules/
+npm-debug.log
+yarn-error.log
+yarn.lock

gulpfile.js

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+const gulp = require('gulp');
+const merge2 = require('merge2');
+const path = require('path');
+const sourcemaps = require('gulp-sourcemaps');
+const tslint = require('gulp-tslint');
+const typescript = require('gulp-typescript');
+
+const tslintPath = './tslint.json'
+const tsconfigPath = './tsconfig.json';
+const outDir = 'build';
+const srcGlob = 'src/**/*.ts';
+
+function onError() {}
+
+function makeCompileFn(dev) {
+  const tsSettings = dev ? {
+    noEmitOnError: false,
+    noUnusedParameters: false
+  } : {};
+  return () => {
+    const { dts, js } = gulp.src(srcGlob)
+      .pipe(sourcemaps.init())
+      .pipe(typescript.createProject(tsconfigPath, tsSettings)())
+      .on('error', onError);
+    const jsMap = js.pipe(sourcemaps.write('.', {
+      includeContent: false,
+      sourceRoot: path.relative(outDir, 'src')
+    }));
+    return merge2([
+      js.pipe(gulp.dest(`${outDir}/src`)),
+      dts.pipe(gulp.dest(`${outDir}/types`)),
+      jsMap.pipe(gulp.dest(`${outDir}/src`))
+    ]);
+  };
+}
+
+/**
+ * Runs tslint on files in src/, with linting rules defined in tslint.json.
+ */
+gulp.task('lint', () => {
+  const program = require('tslint').Linter.createProgram(tsconfigPath);
+  gulp.src(srcGlob)
+    .pipe(tslint({
+      configuration: tslintPath,
+      formatter: 'prose',
+      program
+    }))
+    .pipe(tslint.report())
+    .on('warning', onError);
+});
+
+/**
+ * Transpiles TypeScript files in src/ to JavaScript according to the settings
+ * found in tsconfig.json.
+ * Currently, all errors are emitted twice. This is being tracked here:
+ * https://github.com/ivogabe/gulp-typescript/issues/438
+ */
+gulp.task('compile', makeCompileFn(false));
+
+/**
+ * Starts watching files in src/, running the 'compile' step whenever a file
+ * changes.
+ */
+gulp.task('watch', () => {
+  gulp.start(['compile']);
+  return gulp.watch(srcGlob, ['compile']);
+});
+
+/**
+ * Transpiles source code with relaxed requirements:
+ * - Emit output even if there are type-checking errors (this is a workaround
+ *   for the twice-emitted errors in the 'compile' step)
+ * - Do not emit errors for unused parameters
+ */
+gulp.task('dev.compile', makeCompileFn(true));
+
+/**
+ * Watches files similar to the 'watch' step, but runs the 'dev.compile' step
+ * instead.
+ */
+gulp.task('dev.watch', () => {
+  gulp.start(['dev.compile']);
+  return gulp.watch(srcGlob, ['dev.compile']);
+});
+
+gulp.task('default', ['compile']);

package.json

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+{
+  "name": "grpc-js",
+  "version": "0.1.0",
+  "description": "gRPC client implementation in Node.js",
+  "main": "index.js",
+  "engines": {
+    "node": ">=8.3"
+  },
+  "keywords": [],
+  "author": "Google Inc.",
+  "license": "Apache-2.0",
+  "devDependencies": {
+    "@types/node": "^8.0.17",
+    "clang-format": "^1.0.53",
+    "gulp": "^3.9.1",
+    "gulp-sourcemaps": "^2.6.0",
+    "gulp-tslint": "^8.1.1",
+    "gulp-typescript": "^3.2.1",
+    "merge2": "^1.1.0",
+    "typescript": "^2.4.2"
+  }
+}

tsconfig.json

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+{
+  "compilerOptions": {
+    "allowSyntheticDefaultImports": false,
+    "allowUnreachableCode": false,
+    "allowUnusedLabels": false,
+    "declaration": true,
+    "forceConsistentCasingInFileNames": true,
+    "lib": ["es2015"],
+    "noFallthroughCasesInSwitch": true,
+    "noEmitOnError": true,
+    "noImplicitReturns": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "pretty": true,
+    "strict": true,
+    "module": "commonjs",
+    "target": "es6",
+    "sourceMap": true
+  },
+  "exclude": [
+    "node_modules"
+  ]
+}

tslint.json

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+{
+  "rules": {
+    "class-name": true,
+    "comment-format": [true, "check-space"],
+    "eofline": true,
+    "forin": true,
+    "indent": [true, "spaces"],
+    "jsdoc-format": true,
+    "label-position": true,
+    "no-arg": true,
+    "no-conditional-assignment": true,
+    "no-construct": true,
+    "no-debugger": true,
+    "no-duplicate-variable": true,
+    "no-empty": true,
+    "no-inferrable-types": true,
+    "no-internal-module": true,
+    "no-shadowed-variable": true,
+    "no-switch-case-fall-through": true,
+    "no-trailing-whitespace": true,
+    "no-unused-expression": true,
+    "no-use-before-declare": true,
+    "no-var-keyword": true,
+    "quotemark": [true, "single"],
+    "radix": true,
+    "semicolon": [true, "always"],
+    "switch-default": true,
+    "triple-equals": [true, "allow-null-check"],
+    "variable-name": [true, "check-format", "ban-keywords"]
+  }
+}