[6.x] [typescript] add typescript support for the server and browser (#19104) (#19223)

Backports the following commits to 6.x: - [typescript] add typescript support for the server and browser (#19104)
2025-04-24 01:38:56 -04:00 · 2018-05-21 10:42:59 -07:00 · 2018-05-21 10:42:59 -07:00 · 07f4e5ad77
commit 07f4e5ad77
parent 420a20e799
38 changed files with 638 additions and 309 deletions
--- a/docs/development/plugin/development-plugin-resources.asciidoc
+++ b/docs/development/plugin/development-plugin-resources.asciidoc
@ -51,4 +51,24 @@ The Kibana directory must be named `kibana`, and your plugin directory must be l
 If you're developing a plugin that has a user interface, take a look at our https://elastic.github.io/eui[Elastic UI Framework].
 It documents the CSS and React components we use to build Kibana's user interface.

-You're welcome to use these components, but be aware that they are rapidly evolving and we might introduce breaking changes that will disrupt your plugin's UI.
+You're welcome to use these components, but be aware that they are rapidly evolving and we might introduce breaking changes that will disrupt your plugin's UI.
+
+[float]
+==== TypeScript Support
+Plugin code can be written in http://www.typescriptlang.org/[TypeScript] if desired. To enable TypeScript support create a `tsconfig.json` file at the root of your plugin that looks something like this:
+
+["source","js"]
+-----------
+{
+  // extend Kibana's tsconfig, or use your own settings
+  "extends": "../../kibana/tsconfig.json",
+
+  // tell the TypeScript compiler where to find your source files
+  "include": [
+    "server/**/*",
+    "public/**/*"
+  ]
+}
+-----------
+
+TypeScript code is automatically converted into JavaScript during development, but not in the distributable version of Kibana. If you use the {repo}blob/{branch}/packages/kbn-plugin-helpers[@kbn/plugin-helpers] to build your plugin then your `.ts` and `.tsx` files will be permanently transpiled before your plugin is archived. If you have your own build process, make sure to run the TypeScript compiler on your source files and ship the compilation output so that your plugin will work with the distributable version of Kibana.
--- a/package.json
+++ b/package.json
@ -207,8 +207,8 @@
    "validate-npm-package-name": "2.2.2",
    "vega-lib": "^3.3.1",
    "vega-lite": "^2.4.0",
-    "vega-tooltip": "^0.9.14",
    "vega-schema-url-parser": "1.0.0",
+    "vega-tooltip": "^0.9.14",
    "vision": "4.1.0",
    "webpack": "3.6.0",
    "webpack-merge": "4.1.0",
@ -225,6 +225,8 @@
    "@kbn/eslint-plugin-license-header": "link:packages/kbn-eslint-plugin-license-header",
    "@kbn/plugin-generator": "link:packages/kbn-plugin-generator",
    "@kbn/test": "link:packages/kbn-test",
+    "@types/globby": "^6.1.0",
+    "@types/minimatch": "^2.0.29",
    "angular-mocks": "1.4.7",
    "babel-eslint": "8.1.2",
    "babel-jest": "^22.4.3",
@ -298,8 +300,10 @@
    "supertest": "3.0.0",
    "supertest-as-promised": "4.0.2",
    "tree-kill": "^1.1.0",
-    "ts-jest": "^22.4.3",
-    "typescript": "^2.8.1",
+    "ts-jest": "^22.4.6",
+    "ts-loader": "^3.5.0",
+    "ts-node": "^6.0.3",
+    "typescript": "^2.8.3",
    "vinyl-fs": "^3.0.2",
    "xml2js": "^0.4.19",
    "xmlbuilder": "9.0.4"
--- a/packages/kbn-dev-utils/package.json
+++ b/packages/kbn-dev-utils/package.json
@ -1,6 +1,7 @@
 {
  "name": "@kbn/dev-utils",
  "main": "./target/index.js",
+  "types": "./index.d.ts",
  "version": "1.0.0",
  "license": "Apache-2.0",
  "private": true,
--- a/packages/kbn-eslint-import-resolver-kibana/import_resolver_kibana.js
+++ b/packages/kbn-eslint-import-resolver-kibana/import_resolver_kibana.js
@ -37,8 +37,11 @@ function tryNodeResolver(importRequest, file, config) {
  return nodeResolver.resolve(
    importRequest,
    file,
+    // we use Object.assign so that this file is compatible with slightly older
+    // versions of node.js used by IDEs (eg. resolvers are run in the Electron
+    // process in Atom)
    Object.assign({}, config, {
-      extensions: ['.js', '.json'],
+      extensions: ['.js', '.json', '.ts', '.tsx'],
      isFile,
    })
  );
--- a/packages/kbn-eslint-import-resolver-kibana/lib/get_webpack_config.js
+++ b/packages/kbn-eslint-import-resolver-kibana/lib/get_webpack_config.js
@ -33,7 +33,7 @@ exports.getWebpackConfig = function(kibanaPath, projectRoot, config) {
  return {
    context: kibanaPath,
    resolve: {
-      extensions: ['.js', '.json'],
+      extensions: ['.js', '.json', '.ts', '.tsx'],
      mainFields: ['browser', 'main'],
      modules: [
        'webpackShims',
--- a/packages/kbn-plugin-helpers/README.md
+++ b/packages/kbn-plugin-helpers/README.md
@ -76,3 +76,20 @@ Setting | Description
 `skipInstallDependencies` | Don't install dependencies defined in package.json into build output
 `buildVersion` | Version for the build output
 `kibanaVersion` | Kibana version for the build output (added to package.json)
+
+## TypeScript support
+
+Plugin code can be written in [TypeScript](http://www.typescriptlang.org/) if desired. To enable TypeScript support create a `tsconfig.json` file at the root of your plugin that looks something like this:
+
+```js
+{
+  // extend Kibana's tsconfig, or use your own settings
+  "extends": "../../kibana/tsconfig.json",
+
+  // tell the TypeScript compiler where to find your source files
+  "include": [
+    "server/**/*",
+    "public/**/*"
+  ]
+}
+```
--- a/packages/kbn-plugin-helpers/lib/plugin_config.js
+++ b/packages/kbn-plugin-helpers/lib/plugin_config.js
@ -10,6 +10,7 @@ module.exports = function (root) {

  const buildSourcePatterns = [
    'yarn.lock',
+    'tsconfig.json',
    'package.json',
    'index.js',
    '{lib,public,server,webpackShims,translations}/**/*',
--- a/packages/kbn-plugin-helpers/tasks/build/create_build.js
+++ b/packages/kbn-plugin-helpers/tasks/build/create_build.js
@ -1,6 +1,6 @@
 const join = require('path').join;
 const relative = require('path').relative;
-const unlinkSync = require('fs').unlinkSync;
+const { readFileSync, writeFileSync, unlinkSync, existsSync } = require('fs');
 const execFileSync = require('child_process').execFileSync;
 const del = require('del');
 const vfs = require('vinyl-fs');
@ -29,7 +29,29 @@ function removeSymlinkDependencies(root) {
  });
 }

-module.exports = function createBuild(plugin, buildTarget, buildVersion, kibanaVersion, files) {
+// parse a ts config file
+function parseTsconfig(pluginSourcePath, configPath) {
+  const ts = require(join(pluginSourcePath, 'node_modules', 'typescript'));
+
+  const { error, config } = ts.parseConfigFileTextToJson(
+    configPath,
+    readFileSync(configPath, 'utf8')
+  );
+
+  if (error) {
+    throw error;
+  }
+
+  return config;
+}
+
+module.exports = function createBuild(
+  plugin,
+  buildTarget,
+  buildVersion,
+  kibanaVersion,
+  files
+) {
  const buildSource = plugin.root;
  const buildRoot = join(buildTarget, 'kibana', plugin.id);

@ -65,6 +87,45 @@ module.exports = function createBuild(plugin, buildTarget, buildVersion, kibanaV

      execFileSync(winCmd('yarn'), ['install', '--production', '--pure-lockfile'], options);
    })
+    .then(function () {
+      const buildConfigPath = join(buildRoot, 'tsconfig.json');
+
+      if (!existsSync(buildConfigPath)) {
+        return;
+      }
+
+      if (!plugin.pkg.devDependencies.typescript) {
+        throw new Error(
+          'Found tsconfig.json file in plugin but typescript is not a devDependency.'
+        );
+      }
+
+      // attempt to patch the extends path in the tsconfig file
+      const buildConfig = parseTsconfig(buildSource, buildConfigPath);
+
+      if (buildConfig.extends) {
+        buildConfig.extends = join(
+          relative(buildRoot, buildSource),
+          buildConfig.extends
+        );
+
+        writeFileSync(buildConfigPath, JSON.stringify(buildConfig));
+      }
+
+      execFileSync(
+        join(buildSource, 'node_modules', '.bin', 'tsc'),
+        ['--pretty', 'true'],
+        {
+          cwd: buildRoot,
+          stdio: ['ignore', 'pipe', 'pipe'],
+        }
+      );
+
+      del.sync([
+        join(buildRoot, '**', '*.{ts,tsx,d.ts}'),
+        join(buildRoot, 'tsconfig.json'),
+      ]);
+    })
    .then(function () {
      const buildFiles = [relative(buildTarget, buildRoot) + '/**/*'];

--- a/packages/kbn-pm/webpack.config.js
+++ b/packages/kbn-pm/webpack.config.js
@ -26,6 +26,12 @@ module.exports = {
          },
          {
            loader: 'ts-loader',
+            options: {
+              compilerOptions: {
+                // enable esnext modules so webpack can do its thing better
+                module: 'esnext',
+              },
+            },
          },
        ],
        exclude: /node_modules/,
--- a/packages/kbn-system-loader/tsconfig.json
+++ b/packages/kbn-system-loader/tsconfig.json
@ -1,8 +1,6 @@
 {
  "extends": "../../tsconfig.json",
  "compilerOptions": {
-    "module": "commonjs",
-    "target": "es2017",
    "declaration": true,
    "outDir": "./target"
  },
--- a/src/babel-register/index.js
+++ b/src/babel-register/index.js
@ -1,3 +1,13 @@
+// unless we are running a prebuilt/distributable version of
+// kibana, automatically transpile typescript to js before babel
+if (!global.__BUILT_WITH_BABEL__) {
+  const { resolve } = require('path');
+  require('ts-node').register({
+    transpileOnly: true,
+    cacheDirectory: resolve(__dirname, '../../optimize/.cache/ts-node')
+  });
+}
+
 // register and polyfill need to happen in this
 // order and in separate files. Checkout each file
 // for a much more detailed explaination
--- a/src/dev/build/build_distributables.js
+++ b/src/dev/build/build_distributables.js
@ -6,6 +6,7 @@ import {
  CleanExtraBinScriptsTask,
  CleanExtraFilesFromModulesTask,
  CleanPackagesTask,
+  CleanTypescriptTask,
  CleanTask,
  CopySourceTask,
  CreateArchivesSourcesTask,
@ -21,7 +22,8 @@ import {
  InstallDependenciesTask,
  OptimizeBuildTask,
  RemovePackageJsonDepsTask,
-  TranspileSourceTask,
+  TranspileBabelTask,
+  TranspileTypescriptTask,
  UpdateLicenseFileTask,
  VerifyEnvTask,
  VerifyExistingNodeBuildsTask,
@ -76,10 +78,12 @@ export async function buildDistributables(options) {
  await run(CopySourceTask);
  await run(CreateEmptyDirsAndFilesTask);
  await run(CreateReadmeTask);
-  await run(TranspileSourceTask);
+  await run(TranspileBabelTask);
+  await run(TranspileTypescriptTask);
  await run(BuildPackagesTask);
  await run(CreatePackageJsonTask);
  await run(InstallDependenciesTask);
+  await run(CleanTypescriptTask);
  await run(CleanPackagesTask);
  await run(CreateNoticeFileTask);
  await run(UpdateLicenseFileTask);
--- a/src/dev/build/lib/fs.js
+++ b/src/dev/build/lib/fs.js
@ -2,10 +2,12 @@ import fs from 'fs';
 import { createHash } from 'crypto';
 import { resolve, dirname, isAbsolute } from 'path';
 import { createGunzip } from 'zlib';
+import { inspect } from 'util';

 import vfs from 'vinyl-fs';
 import { promisify } from 'bluebird';
 import mkdirpCb from 'mkdirp';
+import del from 'del';
 import { createPromiseFromStreams, createMapStream } from '../../../utils';

 import { Extract } from 'tar';
@ -26,6 +28,12 @@ function assertAbsolute(path) {
  }
 }

+function longInspect(value) {
+  return inspect(value, {
+    maxArrayLength: Infinity
+  });
+}
+
 export async function mkdirp(path) {
  assertAbsolute(path);
  await mkdirpAsync(path);
@ -67,6 +75,22 @@ export async function copy(source, destination) {
  await chmodAsync(destination, stat.mode);
 }

+export async function deleteAll(log, patterns) {
+  if (!Array.isArray(patterns)) {
+    throw new TypeError('Expected patterns to be an array');
+  }
+
+  log.debug('Deleting patterns:', longInspect(patterns));
+
+  for (const pattern of patterns) {
+    assertAbsolute(pattern.startsWith('!') ? pattern.slice(1) : pattern);
+  }
+
+  const files = await del(patterns);
+  log.debug('Deleted %d files/directories', files.length);
+  log.verbose('Deleted:', longInspect(files));
+}
+
 export async function copyAll(sourceDir, destination, options = {}) {
  const {
    select = ['**/*'],
--- a/src/dev/build/lib/index.js
+++ b/src/dev/build/lib/index.js
@ -10,4 +10,5 @@ export {
  copyAll,
  getFileHash,
  untar,
+  deleteAll,
 } from './fs';
--- a/src/dev/build/tasks/clean_tasks.js
+++ b/src/dev/build/tasks/clean_tasks.js
@ -1,11 +1,11 @@
-import del from 'del';
+import { deleteAll } from '../lib';

 export const CleanTask = {
  global: true,
  description: 'Cleaning artifacts from previous builds',

-  async run(config) {
-    await del([
+  async run(config, log) {
+    await deleteAll(log, [
      config.resolveFromRepo('build'),
      config.resolveFromRepo('target'),
    ]);
@ -16,7 +16,21 @@ export const CleanPackagesTask = {
  description: 'Cleaning source for packages that are now installed in node_modules',

  async run(config, log, build) {
-    await del([build.resolvePath('packages'), build.resolvePath('x-pack')]);
+    await deleteAll(log, [
+      build.resolvePath('packages'),
+      build.resolvePath('x-pack')
+    ]);
+  },
+};
+
+export const CleanTypescriptTask = {
+  description: 'Cleaning typescript source files that have been transpiled to JS',
+
+  async run(config, log, build) {
+    await deleteAll(log, [
+      build.resolvePath('**/*.{ts,tsx,d.ts}'),
+      build.resolvePath('**/tsconfig.json'),
+    ]);
  },
 };

@ -24,7 +38,7 @@ export const CleanExtraFilesFromModulesTask = {
  description: 'Cleaning tests, examples, docs, etc. from node_modules',

  async run(config, log, build) {
-    await del([
+    await deleteAll(log, [
      build.resolvePath('node_modules/**/test/**/*'),
      build.resolvePath('node_modules/**/tests/**/*'),
      build.resolvePath('node_modules/**/example/**/*'),
@ -38,10 +52,16 @@ export const CleanExtraBinScriptsTask = {

  async run(config, log, build) {
    for (const platform of config.getPlatforms()) {
-      const patterns = platform.isWindows() ? ['*', '!*.bat'] : ['*.bat'];
-      await del(patterns, {
-        cwd: build.resolvePathForPlatform(platform, 'bin')
-      });
+      if (platform.isWindows()) {
+        await deleteAll(log, [
+          build.resolvePathForPlatform(platform, 'bin', '*'),
+          `!${build.resolvePathForPlatform(platform, 'bin', '*.bat')}`
+        ]);
+      } else {
+        await deleteAll(log, [
+          build.resolvePathForPlatform(platform, 'bin', '*.bat'),
+        ]);
+      }
    }
  }
 };
--- a/src/dev/build/tasks/copy_source_task.js
+++ b/src/dev/build/tasks/copy_source_task.js
@ -9,7 +9,8 @@ export const CopySourceTask = {
      select: [
        'yarn.lock',
        'src/**',
-        '!src/**/__tests__/**',
+        '!src/**/*.test.{js,ts,tsx}',
+        '!src/**/{__tests__,__snapshots__}/**',
        '!src/test_utils/**',
        '!src/fixtures/**',
        '!src/core_plugins/dev_mode/**',
@ -23,6 +24,7 @@ export const CopySourceTask = {
        'bin/**',
        'webpackShims/**',
        'config/kibana.yml',
+        'tsconfig.json',
      ],
    });
  },
--- a/src/dev/build/tasks/index.js
+++ b/src/dev/build/tasks/index.js
@ -13,6 +13,7 @@ export * from './nodejs';
 export * from './notice_file_task';
 export * from './optimize_task';
 export * from './os_packages';
-export * from './transpile_source_task';
+export * from './transpile_babel_task';
+export * from './transpile_typescript_task';
 export * from './verify_env_task';
 export * from './write_sha_sums_task';
--- a/src/dev/build/tasks/optimize_task.js
+++ b/src/dev/build/tasks/optimize_task.js
@ -1,6 +1,4 @@
-import del from 'del';
-
-import { copyAll, exec } from '../lib';
+import { deleteAll, copyAll, exec } from '../lib';
 import { getNodeDownloadInfo } from './nodejs';

 export const OptimizeBuildTask = {
@ -34,6 +32,6 @@ export const OptimizeBuildTask = {
    });

    // clean up temporary node install
-    await del(tempNodeInstallDir);
+    await deleteAll(log, [tempNodeInstallDir]);
  },
 };
--- a/src/dev/build/tasks/transpile_source_task.js
+++ b/src/dev/build/tasks/transpile_source_task.js
@ -3,7 +3,7 @@ import vfs from 'vinyl-fs';

 import { createPromiseFromStreams } from '../../../utils';

-export const TranspileSourceTask = {
+export const TranspileBabelTask = {
  description: 'Transpiling sources with babel',

  async run(config, log, build) {
--- a/src/dev/build/tasks/transpile_typescript_task.js
+++ b/src/dev/build/tasks/transpile_typescript_task.js
@ -0,0 +1,18 @@
+import { exec } from '../lib';
+
+export const TranspileTypescriptTask = {
+  description: 'Transpiling sources with typescript compiler',
+
+  async run(config, log, build) {
+    await exec(
+      log,
+      require.resolve('typescript/bin/tsc'),
+      [
+        '--pretty', 'true'
+      ],
+      {
+        cwd: build.resolvePath(),
+      }
+    );
+  },
+};
--- a/src/dev/constants.ts
+++ b/src/dev/constants.ts
--- a/src/dev/file.js
+++ b/src/dev/file.js
@ -1,46 +0,0 @@
-import { dirname, join, resolve, relative, extname } from 'path';
-
-import { REPO_ROOT } from './constants';
-
-export class File {
-  constructor(path) {
-    this._path = resolve(path);
-    this._relativePath = relative(REPO_ROOT, this._path);
-    this._ext = extname(this._path);
-  }
-
-  getRelativePath() {
-    return this._relativePath;
-  }
-
-  isJs() {
-    return this._ext === '.js';
-  }
-
-  getRelativeParentDirs() {
-    const parents = [];
-
-    while (true) {
-      const parent = parents.length
-        // NOTE: resolve() produces absolute paths, so we have to use join()
-        ? join(parents[parents.length - 1], '..')
-        : dirname(this._relativePath);
-
-      if (parent === '..' || parent === '.') {
-        break;
-      } else {
-        parents.push(parent);
-      }
-    }
-
-    return parents;
-  }
-
-  toString() {
-    return this._relativePath;
-  }
-
-  toJSON() {
-    return this._relativePath;
-  }
-}
--- a/src/dev/file.ts
+++ b/src/dev/file.ts
@ -0,0 +1,58 @@
+import { dirname, extname, join, relative, resolve } from 'path';
+
+import { REPO_ROOT } from './constants';
+
+export class File {
+  private path: string;
+  private relativePath: string;
+  private ext: string;
+
+  constructor(path: string) {
+    this.path = resolve(path);
+    this.relativePath = relative(REPO_ROOT, this.path);
+    this.ext = extname(this.path);
+  }
+
+  public getAbsolutePath() {
+    return this.path;
+  }
+
+  public getRelativePath() {
+    return this.relativePath;
+  }
+
+  public isJs() {
+    return this.ext === '.js';
+  }
+
+  public isTypescript() {
+    return this.ext === '.ts' || this.ext === '.tsx';
+  }
+
+  public getRelativeParentDirs() {
+    const parents: string[] = [];
+
+    while (true) {
+      // NOTE: resolve() produces absolute paths, so we have to use join()
+      const parent = parents.length
+        ? join(parents[parents.length - 1], '..')
+        : dirname(this.relativePath);
+
+      if (parent === '..' || parent === '.') {
+        break;
+      } else {
+        parents.push(parent);
+      }
+    }
+
+    return parents;
+  }
+
+  public toString() {
+    return this.relativePath;
+  }
+
+  public toJSON() {
+    return this.relativePath;
+  }
+}
--- a/src/dev/jest/config.js
+++ b/src/dev/jest/config.js
@ -35,7 +35,6 @@ export default {
  ],
  globals: {
    'ts-jest': {
-      tsConfigFile: 'src/dev/jest/tsconfig.json',
      skipBabel: true,
    },
  },
@ -43,14 +42,14 @@ export default {
    'js',
    'json',
    'ts',
+    'tsx',
  ],
  modulePathIgnorePatterns: [
    '__fixtures__/',
    'target/',
  ],
  testMatch: [
-    '**/*.test.js',
-    '**/*.test.ts',
+    '**/*.test.{js,ts,tsx}'
  ],
  testPathIgnorePatterns: [
    '<rootDir>/packages/kbn-ui-framework/(dist|doc_site|generator-kui)/',
@ -59,7 +58,7 @@ export default {
  ],
  transform: {
    '^.+\\.js$': '<rootDir>/src/dev/jest/babel_transform.js',
-    '^.+\\.ts$': 'ts-jest',
+    '^.+\\.tsx?$': '<rootDir>/src/dev/jest/ts_transform.js',
  },
  transformIgnorePatterns: [
    '[/\\\\]node_modules[/\\\\].+\\.js$',
--- a/src/dev/jest/ts_transform.js
+++ b/src/dev/jest/ts_transform.js
@ -0,0 +1,2 @@
+require('../../babel-register');
+module.exports = require('./ts_transform.ts');
--- a/src/dev/jest/ts_transform.ts
+++ b/src/dev/jest/ts_transform.ts
@ -0,0 +1,37 @@
+import { getCacheKey, install, process } from 'ts-jest';
+import { JestConfig, TransformOptions } from 'ts-jest/dist/jest-types';
+
+import { transform } from 'typescript';
+import { findProjectForAbsolutePath } from '../typescript';
+
+function extendJestConfigJSON(jestConfigJSON: string, filePath: string) {
+  const jestConfig = JSON.parse(jestConfigJSON) as JestConfig;
+  return JSON.stringify(extendJestConfig(jestConfig, filePath));
+}
+
+function extendJestConfig(jestConfig: JestConfig, filePath: string) {
+  return {
+    ...jestConfig,
+    globals: {
+      ...(jestConfig.globals || {}),
+      'ts-jest': {
+        tsConfigFile: findProjectForAbsolutePath(filePath).getTsConfigPath(),
+        skipBabel: true,
+      },
+    },
+  };
+}
+
+module.exports = {
+  process(src: string, filePath: string, jestConfig: JestConfig, transformOptions: TransformOptions) {
+    const extendedConfig = extendJestConfig(jestConfig, filePath);
+    return process(src, filePath, extendedConfig, transformOptions);
+  },
+
+  getCacheKey(src: string, filePath: string, jestConfigJSON: string, transformOptions: TransformOptions) {
+    const extendedConfigJSON = extendJestConfigJSON(jestConfigJSON, filePath);
+    return getCacheKey(src, filePath, extendedConfigJSON, transformOptions);
+  },
+
+  install,
+};
--- a/src/dev/jest/tsconfig.json
+++ b/src/dev/jest/tsconfig.json
@ -1,17 +0,0 @@
-{
-  // Specific changes to TS config needed to run the tests.
-
-  "extends": "../../../tsconfig.json",
-  "compilerOptions": {
-    "module": "commonjs",
-    // In production we run the TS output through Babel or Webpack, so we can
-    // output `esnext` while the tests are ran directly on the TypeScript
-    // output. We therefore need to the target to match what is available when
-    // Jest is running. When upgrading Node.js versions we can therefore likely
-    // update the target to a newer version of EcmaScript.
-    "target": "es2015"
-  },
-  "include": [
-    "../../../**/*.ts"
-  ]
-}
--- a/src/dev/typescript/index.ts
+++ b/src/dev/typescript/index.ts
@ -0,0 +1 @@
+export { findProjectForAbsolutePath } from './project';
--- a/src/dev/typescript/project.ts
+++ b/src/dev/typescript/project.ts
@ -0,0 +1,73 @@
+import { readFileSync } from 'fs';
+import { basename, dirname, relative, resolve } from 'path';
+import globby from 'globby';
+
+import { IMinimatch, Minimatch } from 'minimatch';
+import { parseConfigFileTextToJson } from 'typescript';
+
+import { File } from '../file';
+
+const ROOT_DIR = resolve(__dirname, '../../../');
+
+function makeMatchers(directory: string, patterns: string[]) {
+  return patterns.map(pattern => new Minimatch(resolve(directory, pattern), {
+    dot: true,
+  }));
+}
+
+export class Project {
+  public static fromConfig(path: string) {
+    const { error, config } = parseConfigFileTextToJson(path, readFileSync(path, 'utf8'));
+
+    if (error) {
+      throw error;
+    }
+
+    return new Project(path, config.files, config.include, config.exclude);
+  }
+
+  private include: IMinimatch[];
+  private exclude: IMinimatch[];
+
+  constructor(private tsConfigPath: string, files?: string[], include?: string[], exclude: string[] = []) {
+    if (files || !include) {
+      throw new Error(
+        'tsconfig.json files in the Kibana repo must use "include" keys and not "files"'
+      );
+    }
+
+    this.include = makeMatchers(dirname(tsConfigPath), include);
+    this.exclude = makeMatchers(dirname(tsConfigPath), exclude);
+  }
+
+  public getTsConfigPath() {
+    return this.tsConfigPath;
+  }
+
+  public isAbsolutePathSelected(path: string) {
+    return this.exclude.some(exc => exc.match(path))
+      ? false
+      : this.include.some(inc => inc.match(path));
+  }
+}
+
+export const TS_PROJECTS = globby.sync([
+  'packages/*/tsconfig.json',
+  'tsconfig.json',
+  'x-pack/tsconfig.json'
+], {
+  cwd: ROOT_DIR,
+  absolute: true,
+}).map(path => Project.fromConfig(path))
+
+export function findProjectForAbsolutePath(path: string) {
+  const project = TS_PROJECTS.find(p => p.isAbsolutePathSelected(path));
+
+  if (!project) {
+    throw new Error(
+      `Unable to find tsconfig.json file selecting file "${path}". Ensure one exists and it is listed in "src/dev/typescript/projects.ts"`
+    );
+  }
+
+  return project
+}
--- a/src/optimize/base_optimizer.js
+++ b/src/optimize/base_optimizer.js
@ -102,8 +102,8 @@ export default class BaseOptimizer {
     * files in optimize/.cache that are not necessary for distributable versions
     * of Kibana and just make compressing and extracting it more difficult.
     */
-    function maybeAddCacheLoader(uiBundles, cacheName, loaders) {
-      if (!uiBundles.isDevMode()) {
+    const maybeAddCacheLoader = (cacheName, loaders) => {
+      if (!this.uiBundles.isDevMode()) {
        return loaders;
      }

@ -111,12 +111,30 @@ export default class BaseOptimizer {
        {
          loader: 'cache-loader',
          options: {
-            cacheDirectory: uiBundles.getCacheDirectory(cacheName)
+            cacheDirectory: this.uiBundles.getCacheDirectory(cacheName)
          }
        },
        ...loaders
      ];
-    }
+    };
+
+    /**
+     * Creates the selection rules for a loader that will only pass for
+     * source files that are eligible for automatic transpilation.
+     */
+    const createSourceFileResourceSelector = (test) => {
+      return [
+        {
+          test,
+          exclude: BABEL_EXCLUDE_RE.concat(this.uiBundles.getWebpackNoParseRules()),
+        },
+        {
+          test,
+          include: /[\/\\]node_modules[\/\\]x-pack[\/\\]/,
+          exclude: /[\/\\]node_modules[\/\\]x-pack[\/\\]node_modules[\/\\]/,
+        }
+      ];
+    };

    const commonConfig = {
      node: { fs: 'empty' },
@ -188,7 +206,7 @@ export default class BaseOptimizer {
            test: /\.less$/,
            use: getStyleLoaders(
              ['less-loader'],
-              maybeAddCacheLoader(this.uiBundles, 'less', [])
+              maybeAddCacheLoader('less', [])
            ),
          },
          {
@ -213,18 +231,8 @@ export default class BaseOptimizer {
            loader: 'file-loader'
          },
          {
-            resource: [
-              {
-                test: /\.js$/,
-                exclude: BABEL_EXCLUDE_RE.concat(this.uiBundles.getWebpackNoParseRules()),
-              },
-              {
-                test: /\.js$/,
-                include: /[\/\\]node_modules[\/\\]x-pack[\/\\]/,
-                exclude: /[\/\\]node_modules[\/\\]x-pack[\/\\]node_modules[\/\\]/,
-              }
-            ],
-            use: maybeAddCacheLoader(this.uiBundles, 'babel', [
+            resource: createSourceFileResourceSelector(/\.js$/),
+            use: maybeAddCacheLoader('babel', [
              {
                loader: 'babel-loader',
                options: {
@ -261,6 +269,44 @@ export default class BaseOptimizer {

    if (this.uiBundles.isDevMode()) {
      return webpackMerge(commonConfig, {
+        module: {
+          rules: [
+            {
+              resource: createSourceFileResourceSelector(/\.tsx?$/),
+              use: maybeAddCacheLoader('typescript', [
+                {
+                  loader: 'ts-loader',
+                  options: {
+                    transpileOnly: true,
+                    experimentalWatchApi: true,
+                    onlyCompileBundledFiles: true,
+                    compilerOptions: {
+                      jsx: 'react',
+                      sourceMap: Boolean(this.sourceMaps),
+                      target: 'es5',
+                      module: 'esnext',
+                    }
+                  }
+                }
+              ]),
+            }
+          ]
+        },
+
+        stats: {
+          // when typescript doesn't do a full type check, as we have the ts-loader
+          // configured here, it does not have enough information to determine
+          // whether an imported name is a type or not, so when the name is then
+          // exported, typescript has no choice but to emit the export. Fortunately,
+          // the extraneous export should not be harmful, so we just suppress these warnings
+          // https://github.com/TypeStrong/ts-loader#transpileonly-boolean-defaultfalse
+          warningsFilter: /export .* was not found in/
+        },
+
+        resolve: {
+          extensions: ['.ts', '.tsx'],
+        },
+
        // In the test env we need to add react-addons (and a few other bits) for the
        // enzyme tests to work.
        // https://github.com/airbnb/enzyme/blob/master/docs/guides/webpack.md
--- a/tasks/config/functional_test_runner.js
+++ b/tasks/config/functional_test_runner.js
@ -1,13 +1,13 @@
 export const functional = {
  options: {
-    logLevel: 'debug',
+    logLevel: 'verbose',
    configFile: require.resolve('../../test/functional/config.js')
  }
 };

 export const apiIntegration = {
  options: {
-    logLevel: 'debug',
+    logLevel: 'verbose',
    configFile: require.resolve('../../test/api_integration/config.js')
  }
 };
--- a/tsconfig.json
+++ b/tsconfig.json
@ -1,19 +1,25 @@
 {
  "compilerOptions": {
+    "baseUrl": ".",
+
    // Enables all strict type checking options.
    "strict": true,

-    // Library files to be included in the compilation. Basically which "core
-    // language features" TypeScript should enable.
-    "lib": ["es2015", "es2016", "es2017"],
+    // enables "core language features"
+    "lib": [
+      // ESNext auto includes previous versions all the way back to es5
+      "esnext",
+      // includes support for browser APIs
+      "dom"
+    ],

-    // Which version of EcmaScript TypeScript should transpile to. Because of
-    // how Babel and Webpack is set up we currently target `esnext`, and let
-    // Babel take care of transpiling it down.
+    // Node 8 should support everything output by esnext, we override this
+    // in webpack with loader-level compiler options
    "target": "esnext",

-    // Specifies module code generation.
-    "module": "esnext",
+    // Use commonjs for node, overriden in webpack to keep import statements
+    // to maintain support for things like `await import()`
+    "module": "commonjs",

    // Allows default imports from modules with no default export. This does not affect code emit, just type checking.
    // We have to enable this option explicitly since `esModuleInterop` doesn't enable it automatically when ES2015 or
@ -28,14 +34,9 @@
    "moduleResolution": "node",

    // Disallow inconsistently-cased references to the same file.
-    "forceConsistentCasingInFileNames": true,
-
-    // Generate an external source map. There's also an `--inlineSourceMap` for
-    // emitting a single file with source maps instead of having a separate file.
-    "sourceMap": true
+    "forceConsistentCasingInFileNames": true
  },
-
-  "exclude": [
-    "node_modules"
+  "include": [
+    "src/**/*"
  ]
 }
--- a/x-pack/.kibana-plugin-helpers.json
+++ b/x-pack/.kibana-plugin-helpers.json
@ -9,6 +9,7 @@
    "NOTICE.txt",
    "package.json",
    "yarn.lock",
+    "tsconfig.json",
    "index.js",
    "plugins/reporting/.phantom/*",
    "plugins/reporting/.chromium/*",
--- a/x-pack/dev-tools/jest/create_jest_config.js
+++ b/x-pack/dev-tools/jest/create_jest_config.js
@ -15,7 +15,9 @@ export function createJestConfig({
    ],
    moduleFileExtensions: [
      "js",
-      "json"
+      "json",
+      "ts",
+      "tsx",
    ],
    moduleNameMapper: {
      "^ui/(.*)": `${kibanaDirectory}/src/ui/public/$1`,
@ -28,10 +30,11 @@ export function createJestConfig({
      `<rootDir>/dev-tools/jest/setup/enzyme.js`
    ],
    testMatch: [
-      "**/*.test.js"
+      "**/*.test.{js,ts,tsx}"
    ],
    transform: {
-      "^.+\\.js$": `${kibanaDirectory}/src/dev/jest/babel_transform.js`
+      "^.+\\.js$": `${kibanaDirectory}/src/dev/jest/babel_transform.js`,
+      "^.+\\.tsx?$": `${kibanaDirectory}/src/dev/jest/ts_transform.js`,
    },
    transformIgnorePatterns: [
      "[/\\\\]node_modules[/\\\\].+\\.js$"
--- a/x-pack/package.json
+++ b/x-pack/package.json
@ -70,6 +70,7 @@
    "supertest-as-promised": "4.0.2",
    "tmp": "0.0.31",
    "tree-kill": "^1.1.0",
+    "typescript": "^2.8.3",
    "vinyl-fs": "^3.0.2",
    "xml-crypto": "^0.10.1",
    "xml2js": "^0.4.19",
--- a/x-pack/tsconfig.json
+++ b/x-pack/tsconfig.json
@ -0,0 +1,8 @@
+{
+  "extends": "../tsconfig.json",
+  "include": [
+    "common/**/*",
+    "server/**/*",
+    "plugins/**/*"
+  ]
+}
--- a/x-pack/yarn.lock
+++ b/x-pack/yarn.lock
@ -7188,6 +7188,10 @@ typedarray@^0.0.6, typedarray@~0.0.5:
  version "0.0.6"
  resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"

+typescript@^2.8.3:
+  version "2.8.3"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-2.8.3.tgz#5d817f9b6f31bb871835f4edf0089f21abe6c170"
+
 ua-parser-js@^0.7.9:
  version "0.7.17"
  resolved "https://registry.yarnpkg.com/ua-parser-js/-/ua-parser-js-0.7.17.tgz#e9ec5f9498b9ec910e7ae3ac626a805c4d09ecac"
--- a/yarn.lock
+++ b/yarn.lock
@ -172,10 +172,36 @@
    call-me-maybe "^1.0.1"
    glob-to-regexp "^0.3.0"

+"@types/events@*":
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/@types/events/-/events-1.2.0.tgz#81a6731ce4df43619e5c8c945383b3e62a89ea86"
+
+"@types/glob@*":
+  version "5.0.35"
+  resolved "https://registry.yarnpkg.com/@types/glob/-/glob-5.0.35.tgz#1ae151c802cece940443b5ac246925c85189f32a"
+  dependencies:
+    "@types/events" "*"
+    "@types/minimatch" "*"
+    "@types/node" "*"
+
+"@types/globby@^6.1.0":
+  version "6.1.0"
+  resolved "https://registry.yarnpkg.com/@types/globby/-/globby-6.1.0.tgz#7c25b975512a89effea2a656ca8cf6db7fb29d11"
+  dependencies:
+    "@types/glob" "*"
+
 "@types/json-stable-stringify@^1.0.32":
  version "1.0.32"
  resolved "https://registry.yarnpkg.com/@types/json-stable-stringify/-/json-stable-stringify-1.0.32.tgz#121f6917c4389db3923640b2e68de5fa64dda88e"

+"@types/minimatch@*":
+  version "3.0.3"
+  resolved "https://registry.yarnpkg.com/@types/minimatch/-/minimatch-3.0.3.tgz#3dca0e3f33b200fc7d1139c0cd96c1268cadfd9d"
+
+"@types/minimatch@^2.0.29":
+  version "2.0.29"
+  resolved "https://registry.yarnpkg.com/@types/minimatch/-/minimatch-2.0.29.tgz#5002e14f75e2d71e564281df0431c8c1b4a2a36a"
+
 "@types/node@*":
  version "9.4.7"
  resolved "https://registry.yarnpkg.com/@types/node/-/node-9.4.7.tgz#57d81cd98719df2c9de118f2d5f3b1120dcd7275"
@ -816,6 +842,30 @@ babel-core@^6.0.0, babel-core@^6.18.0, babel-core@^6.26.0:
    slash "^1.0.0"
    source-map "^0.5.6"

+babel-core@^6.26.3:
+  version "6.26.3"
+  resolved "https://registry.yarnpkg.com/babel-core/-/babel-core-6.26.3.tgz#b2e2f09e342d0f0c88e2f02e067794125e75c207"
+  dependencies:
+    babel-code-frame "^6.26.0"
+    babel-generator "^6.26.0"
+    babel-helpers "^6.24.1"
+    babel-messages "^6.23.0"
+    babel-register "^6.26.0"
+    babel-runtime "^6.26.0"
+    babel-template "^6.26.0"
+    babel-traverse "^6.26.0"
+    babel-types "^6.26.0"
+    babylon "^6.18.0"
+    convert-source-map "^1.5.1"
+    debug "^2.6.9"
+    json5 "^0.5.1"
+    lodash "^4.17.4"
+    minimatch "^3.0.4"
+    path-is-absolute "^1.0.1"
+    private "^0.1.8"
+    slash "^1.0.0"
+    source-map "^0.5.7"
+
 babel-eslint@8.1.2:
  version "8.1.2"
  resolved "https://registry.yarnpkg.com/babel-eslint/-/babel-eslint-8.1.2.tgz#a39230b0c20ecbaa19a35d5633bf9b9ca2c8116f"
@ -980,7 +1030,7 @@ babel-plugin-check-es2015-constants@^6.22.0:
  dependencies:
    babel-runtime "^6.22.0"

-babel-plugin-istanbul@^4.1.4, babel-plugin-istanbul@^4.1.5:
+babel-plugin-istanbul@^4.1.5:
  version "4.1.5"
  resolved "https://registry.yarnpkg.com/babel-plugin-istanbul/-/babel-plugin-istanbul-4.1.5.tgz#6760cdd977f411d3e175bb064f2bc327d99b2b6e"
  dependencies:
@ -988,9 +1038,14 @@ babel-plugin-istanbul@^4.1.4, babel-plugin-istanbul@^4.1.5:
    istanbul-lib-instrument "^1.7.5"
    test-exclude "^4.1.1"

-babel-plugin-jest-hoist@^22.4.1:
-  version "22.4.1"
-  resolved "https://registry.yarnpkg.com/babel-plugin-jest-hoist/-/babel-plugin-jest-hoist-22.4.1.tgz#d712fe5da8b6965f3191dacddbefdbdf4fb66d63"
+babel-plugin-istanbul@^4.1.6:
+  version "4.1.6"
+  resolved "https://registry.yarnpkg.com/babel-plugin-istanbul/-/babel-plugin-istanbul-4.1.6.tgz#36c59b2192efce81c5b378321b74175add1c9a45"
+  dependencies:
+    babel-plugin-syntax-object-rest-spread "^6.13.0"
+    find-up "^2.1.0"
+    istanbul-lib-instrument "^1.10.1"
+    test-exclude "^4.2.1"

 babel-plugin-jest-hoist@^22.4.3:
  version "22.4.3"
@ -1144,7 +1199,7 @@ babel-plugin-transform-es2015-modules-amd@^6.22.0, babel-plugin-transform-es2015
    babel-runtime "^6.22.0"
    babel-template "^6.24.1"

-babel-plugin-transform-es2015-modules-commonjs@^6.23.0, babel-plugin-transform-es2015-modules-commonjs@^6.24.1, babel-plugin-transform-es2015-modules-commonjs@^6.26.0:
+babel-plugin-transform-es2015-modules-commonjs@^6.23.0, babel-plugin-transform-es2015-modules-commonjs@^6.24.1:
  version "6.26.0"
  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-modules-commonjs/-/babel-plugin-transform-es2015-modules-commonjs-6.26.0.tgz#0d8394029b7dc6abe1a97ef181e00758dd2e5d8a"
  dependencies:
@ -1153,6 +1208,15 @@ babel-plugin-transform-es2015-modules-commonjs@^6.23.0, babel-plugin-transform-e
    babel-template "^6.26.0"
    babel-types "^6.26.0"

+babel-plugin-transform-es2015-modules-commonjs@^6.26.2:
+  version "6.26.2"
+  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-modules-commonjs/-/babel-plugin-transform-es2015-modules-commonjs-6.26.2.tgz#58a793863a9e7ca870bdc5a881117ffac27db6f3"
+  dependencies:
+    babel-plugin-transform-strict-mode "^6.24.1"
+    babel-runtime "^6.26.0"
+    babel-template "^6.26.0"
+    babel-types "^6.26.0"
+
 babel-plugin-transform-es2015-modules-systemjs@^6.23.0, babel-plugin-transform-es2015-modules-systemjs@^6.24.1:
  version "6.24.1"
  resolved "https://registry.yarnpkg.com/babel-plugin-transform-es2015-modules-systemjs/-/babel-plugin-transform-es2015-modules-systemjs-6.24.1.tgz#ff89a142b9119a906195f5f106ecf305d9407d23"
@ -1368,13 +1432,6 @@ babel-preset-flow@^6.23.0:
  dependencies:
    babel-plugin-transform-flow-strip-types "^6.22.0"

-babel-preset-jest@^22.4.0:
-  version "22.4.1"
-  resolved "https://registry.yarnpkg.com/babel-preset-jest/-/babel-preset-jest-22.4.1.tgz#efa2e5f5334242a9457a068452d7d09735db172a"
-  dependencies:
-    babel-plugin-jest-hoist "^22.4.1"
-    babel-plugin-syntax-object-rest-spread "^6.13.0"
-
 babel-preset-jest@^22.4.3:
  version "22.4.3"
  resolved "https://registry.yarnpkg.com/babel-preset-jest/-/babel-preset-jest-22.4.3.tgz#e92eef9813b7026ab4ca675799f37419b5a44156"
@ -1856,6 +1913,10 @@ buffer-equal@^1.0.0:
  version "1.0.0"
  resolved "https://registry.yarnpkg.com/buffer-equal/-/buffer-equal-1.0.0.tgz#59616b498304d556abd466966b22eeda3eca5fbe"

+buffer-from@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/buffer-from/-/buffer-from-1.0.0.tgz#4cb8832d23612589b0406e9e2956c17f06fdf531"
+
 buffer-xor@^1.0.3:
  version "1.0.3"
  resolved "https://registry.yarnpkg.com/buffer-xor/-/buffer-xor-1.0.3.tgz#26e61ed1422fb70dd42e6e36729ed51d855fe8d9"
@ -3484,7 +3545,7 @@ diff@3.2.0:
  version "3.2.0"
  resolved "https://registry.yarnpkg.com/diff/-/diff-3.2.0.tgz#c9ce393a4b7cbd0b058a725c93df299027868ff9"

-diff@^3.2.0:
+diff@^3.1.0, diff@^3.2.0:
  version "3.5.0"
  resolved "https://registry.yarnpkg.com/diff/-/diff-3.5.0.tgz#800c0dd1e0a8bfbc95835c202ad220fe317e5a12"

@ -3796,7 +3857,7 @@ engine.io@1.8.3:
    engine.io-parser "1.3.2"
    ws "1.1.2"

-enhanced-resolve@^3.4.0:
+enhanced-resolve@^3.0.0, enhanced-resolve@^3.4.0:
  version "3.4.1"
  resolved "https://registry.yarnpkg.com/enhanced-resolve/-/enhanced-resolve-3.4.1.tgz#0421e339fd71419b3da13d129b3979040230476e"
  dependencies:
@ -4404,17 +4465,6 @@ expect.js@0.3.1:
  version "0.3.1"
  resolved "https://registry.yarnpkg.com/expect.js/-/expect.js-0.3.1.tgz#b0a59a0d2eff5437544ebf0ceaa6015841d09b5b"

-expect@^22.4.0:
-  version "22.4.0"
-  resolved "https://registry.yarnpkg.com/expect/-/expect-22.4.0.tgz#371edf1ae15b83b5bf5ec34b42f1584660a36c16"
-  dependencies:
-    ansi-styles "^3.2.0"
-    jest-diff "^22.4.0"
-    jest-get-type "^22.1.0"
-    jest-matcher-utils "^22.4.0"
-    jest-message-util "^22.4.0"
-    jest-regex-util "^22.1.0"
-
 expect@^22.4.3:
  version "22.4.3"
  resolved "https://registry.yarnpkg.com/expect/-/expect-22.4.3.tgz#d5a29d0a0e1fb2153557caef2674d4547e914674"
@ -4868,9 +4918,9 @@ fs-exists-sync@^0.1.0:
  version "0.1.0"
  resolved "https://registry.yarnpkg.com/fs-exists-sync/-/fs-exists-sync-0.1.0.tgz#982d6893af918e72d08dec9e8673ff2b5a8d6add"

-fs-extra@4.0.3, fs-extra@^4.0.1:
-  version "4.0.3"
-  resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-4.0.3.tgz#0d852122e5bc5beb453fb028e9c0c9bf36340c94"
+fs-extra@6.0.0:
+  version "6.0.0"
+  resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-6.0.0.tgz#0f0afb290bb3deb87978da816fcd3c7797f3a817"
  dependencies:
    graceful-fs "^4.1.2"
    jsonfile "^4.0.0"
@ -4884,6 +4934,14 @@ fs-extra@^3.0.1:
    jsonfile "^3.0.0"
    universalify "^0.1.0"

+fs-extra@^4.0.1:
+  version "4.0.3"
+  resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-4.0.3.tgz#0d852122e5bc5beb453fb028e9c0c9bf36340c94"
+  dependencies:
+    graceful-fs "^4.1.2"
+    jsonfile "^4.0.0"
+    universalify "^0.1.0"
+
 fs-mkdirp-stream@^1.0.0:
  version "1.0.0"
  resolved "https://registry.yarnpkg.com/fs-mkdirp-stream/-/fs-mkdirp-stream-1.0.0.tgz#0b7815fc3201c6a69e14db98ce098c16935259eb"
@ -6723,22 +6781,6 @@ jest-cli@^22.4.3:
    which "^1.2.12"
    yargs "^10.0.3"

-jest-config@^22.4.2:
-  version "22.4.2"
-  resolved "https://registry.yarnpkg.com/jest-config/-/jest-config-22.4.2.tgz#580ba5819bf81a5e48f4fd470e8b81834f45c855"
-  dependencies:
-    chalk "^2.0.1"
-    glob "^7.1.1"
-    jest-environment-jsdom "^22.4.1"
-    jest-environment-node "^22.4.1"
-    jest-get-type "^22.1.0"
-    jest-jasmine2 "^22.4.2"
-    jest-regex-util "^22.1.0"
-    jest-resolve "^22.4.2"
-    jest-util "^22.4.1"
-    jest-validate "^22.4.2"
-    pretty-format "^22.4.0"
-
 jest-config@^22.4.3:
  version "22.4.3"
  resolved "https://registry.yarnpkg.com/jest-config/-/jest-config-22.4.3.tgz#0e9d57db267839ea31309119b41dc2fa31b76403"
@ -6755,15 +6797,6 @@ jest-config@^22.4.3:
    jest-validate "^22.4.3"
    pretty-format "^22.4.3"

-jest-diff@^22.4.0:
-  version "22.4.0"
-  resolved "https://registry.yarnpkg.com/jest-diff/-/jest-diff-22.4.0.tgz#384c2b78519ca44ca126382df53f134289232525"
-  dependencies:
-    chalk "^2.0.1"
-    diff "^3.2.0"
-    jest-get-type "^22.1.0"
-    pretty-format "^22.4.0"
-
 jest-diff@^22.4.3:
  version "22.4.3"
  resolved "https://registry.yarnpkg.com/jest-diff/-/jest-diff-22.4.3.tgz#e18cc3feff0aeef159d02310f2686d4065378030"
@ -6783,14 +6816,6 @@ jest-docblock@^22.4.3:
  dependencies:
    detect-newline "^2.1.0"

-jest-environment-jsdom@^22.4.1:
-  version "22.4.1"
-  resolved "https://registry.yarnpkg.com/jest-environment-jsdom/-/jest-environment-jsdom-22.4.1.tgz#754f408872441740100d3917e5ec40c74de6447f"
-  dependencies:
-    jest-mock "^22.2.0"
-    jest-util "^22.4.1"
-    jsdom "^11.5.1"
-
 jest-environment-jsdom@^22.4.3:
  version "22.4.3"
  resolved "https://registry.yarnpkg.com/jest-environment-jsdom/-/jest-environment-jsdom-22.4.3.tgz#d67daa4155e33516aecdd35afd82d4abf0fa8a1e"
@ -6799,13 +6824,6 @@ jest-environment-jsdom@^22.4.3:
    jest-util "^22.4.3"
    jsdom "^11.5.1"

-jest-environment-node@^22.4.1:
-  version "22.4.1"
-  resolved "https://registry.yarnpkg.com/jest-environment-node/-/jest-environment-node-22.4.1.tgz#418850eb654596b8d6e36c2021cbedbc23df8e16"
-  dependencies:
-    jest-mock "^22.2.0"
-    jest-util "^22.4.1"
-
 jest-environment-node@^22.4.3:
  version "22.4.3"
  resolved "https://registry.yarnpkg.com/jest-environment-node/-/jest-environment-node-22.4.3.tgz#54c4eaa374c83dd52a9da8759be14ebe1d0b9129"
@ -6813,10 +6831,6 @@ jest-environment-node@^22.4.3:
    jest-mock "^22.4.3"
    jest-util "^22.4.3"

-jest-get-type@^22.1.0:
-  version "22.1.0"
-  resolved "https://registry.yarnpkg.com/jest-get-type/-/jest-get-type-22.1.0.tgz#4e90af298ed6181edc85d2da500dbd2753e0d5a9"
-
 jest-get-type@^22.4.3:
  version "22.4.3"
  resolved "https://registry.yarnpkg.com/jest-get-type/-/jest-get-type-22.4.3.tgz#e3a8504d8479342dd4420236b322869f18900ce4"
@ -6833,22 +6847,6 @@ jest-haste-map@^22.4.3:
    micromatch "^2.3.11"
    sane "^2.0.0"

-jest-jasmine2@^22.4.2:
-  version "22.4.2"
-  resolved "https://registry.yarnpkg.com/jest-jasmine2/-/jest-jasmine2-22.4.2.tgz#dfd3d259579ed6f52510d8f1ab692808f0d40691"
-  dependencies:
-    chalk "^2.0.1"
-    co "^4.6.0"
-    expect "^22.4.0"
-    graceful-fs "^4.1.11"
-    is-generator-fn "^1.0.0"
-    jest-diff "^22.4.0"
-    jest-matcher-utils "^22.4.0"
-    jest-message-util "^22.4.0"
-    jest-snapshot "^22.4.0"
-    jest-util "^22.4.1"
-    source-map-support "^0.5.0"
-
 jest-jasmine2@^22.4.3:
  version "22.4.3"
  resolved "https://registry.yarnpkg.com/jest-jasmine2/-/jest-jasmine2-22.4.3.tgz#4daf64cd14c793da9db34a7c7b8dcfe52a745965"
@ -6871,14 +6869,6 @@ jest-leak-detector@^22.4.3:
  dependencies:
    pretty-format "^22.4.3"

-jest-matcher-utils@^22.4.0:
-  version "22.4.0"
-  resolved "https://registry.yarnpkg.com/jest-matcher-utils/-/jest-matcher-utils-22.4.0.tgz#d55f5faf2270462736bdf7c7485ee931c9d4b6a1"
-  dependencies:
-    chalk "^2.0.1"
-    jest-get-type "^22.1.0"
-    pretty-format "^22.4.0"
-
 jest-matcher-utils@^22.4.3:
  version "22.4.3"
  resolved "https://registry.yarnpkg.com/jest-matcher-utils/-/jest-matcher-utils-22.4.3.tgz#4632fe428ebc73ebc194d3c7b65d37b161f710ff"
@ -6887,16 +6877,6 @@ jest-matcher-utils@^22.4.3:
    jest-get-type "^22.4.3"
    pretty-format "^22.4.3"

-jest-message-util@^22.4.0:
-  version "22.4.0"
-  resolved "https://registry.yarnpkg.com/jest-message-util/-/jest-message-util-22.4.0.tgz#e3d861df16d2fee60cb2bc8feac2188a42579642"
-  dependencies:
-    "@babel/code-frame" "^7.0.0-beta.35"
-    chalk "^2.0.1"
-    micromatch "^2.3.11"
-    slash "^1.0.0"
-    stack-utils "^1.0.1"
-
 jest-message-util@^22.4.3:
  version "22.4.3"
  resolved "https://registry.yarnpkg.com/jest-message-util/-/jest-message-util-22.4.3.tgz#cf3d38aafe4befddbfc455e57d65d5239e399eb7"
@ -6907,18 +6887,10 @@ jest-message-util@^22.4.3:
    slash "^1.0.0"
    stack-utils "^1.0.1"

-jest-mock@^22.2.0:
-  version "22.2.0"
-  resolved "https://registry.yarnpkg.com/jest-mock/-/jest-mock-22.2.0.tgz#444b3f9488a7473adae09bc8a77294afded397a7"
-
 jest-mock@^22.4.3:
  version "22.4.3"
  resolved "https://registry.yarnpkg.com/jest-mock/-/jest-mock-22.4.3.tgz#f63ba2f07a1511772cdc7979733397df770aabc7"

-jest-regex-util@^22.1.0:
-  version "22.1.0"
-  resolved "https://registry.yarnpkg.com/jest-regex-util/-/jest-regex-util-22.1.0.tgz#5daf2fe270074b6da63e5d85f1c9acc866768f53"
-
 jest-regex-util@^22.4.3:
  version "22.4.3"
  resolved "https://registry.yarnpkg.com/jest-regex-util/-/jest-regex-util-22.4.3.tgz#a826eb191cdf22502198c5401a1fc04de9cef5af"
@ -6929,13 +6901,6 @@ jest-resolve-dependencies@^22.4.3:
  dependencies:
    jest-regex-util "^22.4.3"

-jest-resolve@^22.4.2:
-  version "22.4.2"
-  resolved "https://registry.yarnpkg.com/jest-resolve/-/jest-resolve-22.4.2.tgz#25d88aa4147462c9c1c6a1ba16250d3794c24d00"
-  dependencies:
-    browser-resolve "^1.11.2"
-    chalk "^2.0.1"
-
 jest-resolve@^22.4.3:
  version "22.4.3"
  resolved "https://registry.yarnpkg.com/jest-resolve/-/jest-resolve-22.4.3.tgz#0ce9d438c8438229aa9b916968ec6b05c1abb4ea"
@ -6988,17 +6953,6 @@ jest-serializer@^22.4.3:
  version "22.4.3"
  resolved "https://registry.yarnpkg.com/jest-serializer/-/jest-serializer-22.4.3.tgz#a679b81a7f111e4766235f4f0c46d230ee0f7436"

-jest-snapshot@^22.4.0:
-  version "22.4.0"
-  resolved "https://registry.yarnpkg.com/jest-snapshot/-/jest-snapshot-22.4.0.tgz#03d3ce63f8fa7352388afc6a3c8b5ccc3a180ed7"
-  dependencies:
-    chalk "^2.0.1"
-    jest-diff "^22.4.0"
-    jest-matcher-utils "^22.4.0"
-    mkdirp "^0.5.1"
-    natural-compare "^1.4.0"
-    pretty-format "^22.4.0"
-
 jest-snapshot@^22.4.3:
  version "22.4.3"
  resolved "https://registry.yarnpkg.com/jest-snapshot/-/jest-snapshot-22.4.3.tgz#b5c9b42846ffb9faccb76b841315ba67887362d2"
@ -7010,18 +6964,6 @@ jest-snapshot@^22.4.3:
    natural-compare "^1.4.0"
    pretty-format "^22.4.3"

-jest-util@^22.4.1:
-  version "22.4.1"
-  resolved "https://registry.yarnpkg.com/jest-util/-/jest-util-22.4.1.tgz#dd17c3bdb067f8e90591563ec0c42bf847dc249f"
-  dependencies:
-    callsites "^2.0.0"
-    chalk "^2.0.1"
-    graceful-fs "^4.1.11"
-    is-ci "^1.0.10"
-    jest-message-util "^22.4.0"
-    mkdirp "^0.5.1"
-    source-map "^0.6.0"
-
 jest-util@^22.4.3:
  version "22.4.3"
  resolved "https://registry.yarnpkg.com/jest-util/-/jest-util-22.4.3.tgz#c70fec8eec487c37b10b0809dc064a7ecf6aafac"
@ -7034,16 +6976,6 @@ jest-util@^22.4.3:
    mkdirp "^0.5.1"
    source-map "^0.6.0"

-jest-validate@^22.4.2:
-  version "22.4.2"
-  resolved "https://registry.yarnpkg.com/jest-validate/-/jest-validate-22.4.2.tgz#e789a4e056173bf97fe797a2df2d52105c57d4f4"
-  dependencies:
-    chalk "^2.0.1"
-    jest-config "^22.4.2"
-    jest-get-type "^22.1.0"
-    leven "^2.1.0"
-    pretty-format "^22.4.0"
-
 jest-validate@^22.4.3:
  version "22.4.3"
  resolved "https://registry.yarnpkg.com/jest-validate/-/jest-validate-22.4.3.tgz#0780954a5a7daaeec8d3c10834b9280865976b30"
@ -8017,6 +7949,10 @@ lodash@^4.0.0, lodash@^4.0.1, lodash@^4.13.1, lodash@^4.14.0, lodash@^4.15.0, lo
  version "4.17.5"
  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.5.tgz#99a92d65c0272debe8c96b6057bc8fbfa3bed511"

+lodash@^4.17.10:
+  version "4.17.10"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.10.tgz#1b7793cf7259ea38fb3661d4d38b3260af8ae4e7"
+
 lodash@~4.3.0:
  version "4.3.0"
  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.3.0.tgz#efd9c4a6ec53f3b05412429915c3e4824e4d25a4"
@ -8114,6 +8050,10 @@ make-dir@^1.0.0:
  dependencies:
    pify "^3.0.0"

+make-error@^1.1.1:
+  version "1.3.4"
+  resolved "https://registry.yarnpkg.com/make-error/-/make-error-1.3.4.tgz#19978ed575f9e9545d2ff8c13e33b5d18a67d535"
+
 makeerror@1.0.x:
  version "1.0.11"
  resolved "https://registry.yarnpkg.com/makeerror/-/makeerror-1.0.11.tgz#e01a5c9109f2af79660e4e8b9587790184f5a96c"
@ -9659,13 +9599,6 @@ prettier@^1.12.1:
  version "1.12.1"
  resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.12.1.tgz#c1ad20e803e7749faf905a409d2367e06bbe7325"

-pretty-format@^22.4.0:
-  version "22.4.0"
-  resolved "https://registry.yarnpkg.com/pretty-format/-/pretty-format-22.4.0.tgz#237b1f7e1c50ed03bc65c03ccc29d7c8bb7beb94"
-  dependencies:
-    ansi-regex "^3.0.0"
-    ansi-styles "^3.2.0"
-
 pretty-format@^22.4.3:
  version "22.4.3"
  resolved "https://registry.yarnpkg.com/pretty-format/-/pretty-format-22.4.3.tgz#f873d780839a9c02e9664c8a082e9ee79eaac16f"
@ -9677,7 +9610,7 @@ prismjs@0.0.1:
  version "0.0.1"
  resolved "https://registry.yarnpkg.com/prismjs/-/prismjs-0.0.1.tgz#0fd50f4baf26e5cd33523b65bac2f0bc90f5503f"

-private@^0.1.6, private@^0.1.7:
+private@^0.1.6, private@^0.1.7, private@^0.1.8:
  version "0.1.8"
  resolved "https://registry.yarnpkg.com/private/-/private-0.1.8.tgz#2381edb3689f7a53d653190060fcf822d2f368ff"

@ -10979,7 +10912,7 @@ semver-diff@^2.0.0:
  dependencies:
    semver "^5.0.3"

-"semver@2 || 3 || 4 || 5", semver@^5.0.3, semver@^5.1.0, semver@^5.3.0, semver@^5.4.1, semver@^5.5.0:
+"semver@2 || 3 || 4 || 5", semver@^5.0.1, semver@^5.0.3, semver@^5.1.0, semver@^5.3.0, semver@^5.4.1, semver@^5.5.0:
  version "5.5.0"
  resolved "https://registry.yarnpkg.com/semver/-/semver-5.5.0.tgz#dc4bbc7a6ca9d916dee5d43516f0092b58f7b8ab"

@ -11261,6 +11194,13 @@ source-map-support@^0.5.0:
  dependencies:
    source-map "^0.6.0"

+source-map-support@^0.5.3, source-map-support@^0.5.5:
+  version "0.5.6"
+  resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.5.6.tgz#4435cee46b1aab62b8e8610ce60f788091c51c13"
+  dependencies:
+    buffer-from "^1.0.0"
+    source-map "^0.6.0"
+
 source-map-url@^0.4.0:
  version "0.4.0"
  resolved "https://registry.yarnpkg.com/source-map-url/-/source-map-url-0.4.0.tgz#3e935d7ddd73631b97659956d55128e87b5084a3"
@ -11873,7 +11813,7 @@ term-size@^1.2.0:
  dependencies:
    execa "^0.7.0"

-test-exclude@^4.1.1:
+test-exclude@^4.1.1, test-exclude@^4.2.1:
  version "4.2.1"
  resolved "https://registry.yarnpkg.com/test-exclude/-/test-exclude-4.2.1.tgz#dfa222f03480bca69207ca728b37d74b45f724fa"
  dependencies:
@ -12152,20 +12092,45 @@ trunc-text@1.0.2:
  version "1.0.2"
  resolved "https://registry.yarnpkg.com/trunc-text/-/trunc-text-1.0.2.tgz#b582bb3ddea9c9adc25017d737c48ebdd2157406"

-ts-jest@^22.4.3:
-  version "22.4.3"
-  resolved "https://registry.yarnpkg.com/ts-jest/-/ts-jest-22.4.3.tgz#5c06b89359e598d97f08802936ea400be555a9d1"
+ts-jest@^22.4.6:
+  version "22.4.6"
+  resolved "https://registry.yarnpkg.com/ts-jest/-/ts-jest-22.4.6.tgz#a5d7f5e8b809626d1f4143209d301287472ec344"
  dependencies:
-    babel-core "^6.26.0"
-    babel-plugin-istanbul "^4.1.4"
-    babel-plugin-transform-es2015-modules-commonjs "^6.26.0"
-    babel-preset-jest "^22.4.0"
+    babel-core "^6.26.3"
+    babel-plugin-istanbul "^4.1.6"
+    babel-plugin-transform-es2015-modules-commonjs "^6.26.2"
+    babel-preset-jest "^22.4.3"
    cpx "^1.5.0"
-    fs-extra "4.0.3"
-    jest-config "^22.4.2"
+    fs-extra "6.0.0"
+    jest-config "^22.4.3"
+    lodash "^4.17.10"
    pkg-dir "^2.0.0"
+    source-map-support "^0.5.5"
    yargs "^11.0.0"

+ts-loader@^3.5.0:
+  version "3.5.0"
+  resolved "https://registry.yarnpkg.com/ts-loader/-/ts-loader-3.5.0.tgz#151d004dcddb4cf8e381a3bf9d6b74c2d957a9c0"
+  dependencies:
+    chalk "^2.3.0"
+    enhanced-resolve "^3.0.0"
+    loader-utils "^1.0.2"
+    micromatch "^3.1.4"
+    semver "^5.0.1"
+
+ts-node@^6.0.3:
+  version "6.0.3"
+  resolved "https://registry.yarnpkg.com/ts-node/-/ts-node-6.0.3.tgz#28bf74bcad134fad17f7469dad04638ece03f0f4"
+  dependencies:
+    arrify "^1.0.0"
+    chalk "^2.3.0"
+    diff "^3.1.0"
+    make-error "^1.1.1"
+    minimist "^1.2.0"
+    mkdirp "^0.5.1"
+    source-map-support "^0.5.3"
+    yn "^2.0.0"
+
 tslib@^1.9.0:
  version "1.9.0"
  resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.9.0.tgz#e37a86fda8cbbaf23a057f473c9f4dc64e5fc2e8"
@ -12215,9 +12180,9 @@ typedarray@^0.0.6, typedarray@~0.0.5:
  version "0.0.6"
  resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"

-typescript@^2.8.1:
-  version "2.8.1"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-2.8.1.tgz#6160e4f8f195d5ba81d4876f9c0cc1fbc0820624"
+typescript@^2.8.3:
+  version "2.8.3"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-2.8.3.tgz#5d817f9b6f31bb871835f4edf0089f21abe6c170"

 ua-parser-js@^0.7.9:
  version "0.7.17"
@ -13432,6 +13397,10 @@ yeast@0.1.2:
  version "0.1.2"
  resolved "https://registry.yarnpkg.com/yeast/-/yeast-0.1.2.tgz#008e06d8094320c372dbc2f8ed76a0ca6c8ac419"

+yn@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/yn/-/yn-2.0.0.tgz#e5adabc8acf408f6385fc76495684c88e6af689a"
+
 zlib@^1.0.5:
  version "1.0.5"
  resolved "https://registry.yarnpkg.com/zlib/-/zlib-1.0.5.tgz#6e7c972fc371c645a6afb03ab14769def114fcc0"
				`@ -0,0 +1 @@`
				`export { findProjectForAbsolutePath } from './project';`