perf: cache tsconf

Author: eddyerburgh

lib/compilers/typescript-compiler.js

@@ -1,13 +1,45 @@
 const ensureRequire = require('../ensure-require')
 const compileBabel = require('./babel-compiler')
 const tsconfig = require('tsconfig')
+const cache = require('../cache')
+const logger = require('../logger')
+
+const defaultTypescriptConfig = {
+  'compilerOptions': {
+    'module': 'es2015',
+    'moduleResolution': 'node',
+    'allowSyntheticDefaultImports': true,
+    'strict': true,
+    'noEmit': true
+  },
+  'include': [
+    '**/*.ts'
+  ]
+}
+
+function getTypescriptConfig () {
+  // const cachedConfig = cache.get('typescript-config')
+  // if (cachedConfig) {
+  //   return cachedConfig
+  // } else {
+  const { config } = tsconfig.loadSync(process.cwd())
+
+  if (!config) {
+    logger.info('no tsconfig.json found, defaulting to default typescript options')
+  }
+
+  const typescriptConfig = config || defaultTypescriptConfig
+  cache.set('typescript-config', typescriptConfig)
+  return typescriptConfig
+  // }
+}
 
 module.exports = function compileTypescript (scriptContent) {
   ensureRequire('typescript', ['typescript'])
   const typescript = require('typescript')
-  const file = tsconfig.loadSync(process.cwd())
+  const tsConfig = getTypescriptConfig()
 
-  const res = typescript.transpileModule(scriptContent, file.config)
+  const res = typescript.transpileModule(scriptContent, tsConfig)
 
   return compileBabel(res.outputText, res.sourceMapText)
 }

package.json

@@ -20,7 +20,8 @@
     "release": "build/release.sh",
     "release:note": "node build/gen-release-note.js",
     "test": "npm run lint && ./test.sh",
-    "unit": "jest test --no-cache --runInBand --coverage --coverageDirectory test/coverage"
+    "unit": "./test.sh",
+    "unit:run": "jest test --no-cache --runInBand --coverage --coverageDirectory test/coverage"
   },
   "author": "Edd Yerburgh",
   "license": "MIT",

test.sh

@@ -8,4 +8,4 @@ cp package.json temp-dir/package.json
 cp .babelrc temp-dir/.babelrc
 cp tsconfig.json temp-dir/tsconfig.json
 cd temp-dir
-yarn unit
+yarn unit:run

test/TypeScript.spec.js

@@ -1,12 +1,18 @@
+import { shallow } from 'vue-test-utils'
+import { resolve } from 'path'
 import TypeScript from './resources/TypeScript.vue'
 import jestVue from '../jest-vue'
-import { resolve } from 'path'
 import { readFileSync } from 'fs'
-import { shallow } from 'vue-test-utils'
+import cache from '../lib/cache'
+
+beforeEach(() => {
+  cache.flushAll()
+})
 
 test('processes .vue files', () => {
   shallow(TypeScript)
 })
+
 test.skip('generates inline sourcemap', () => {
   const expectedMap = '//# sourceMappingURL=data:application/json;charset=utf-8;base64,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'
   const filePath = resolve(__dirname, './resources/TypeScript.vue')