ignore some files from coverage, refactor codes

package.json

@@ -12,7 +12,7 @@
     "bundle": "ts-node --project ./tools/tsconfig.json ./tools/bundle.ts",
     "build.packages": "ts-node tools/packages.ts",
     "reset.packages": "sh ./reset-packages.sh",
-    "test": "aria-mocha --file ./src/**/*.spec.ts --include-dir ./src --check-coverage",
+    "test": "aria-mocha --check-coverage",
     "coveralls": "cat ./coverage/lcov.info | ./node_modules/coveralls/bin/coveralls.js"
   },
   "repository": {

src/build/index.ts

@@ -1,3 +1,5 @@
+/* istanbul ignore file */
+
 export * from './build'
 export * from './build-output'
 export * from './generate'

src/cli/common.ts

@@ -1,4 +1,4 @@
-import { KeyValue } from '../utils'
+import { KeyValue } from '../utils/utils'
 
 export const DEFAULT_OUT_DIR = 'dist'
 

src/config/config.ts

@@ -1,2 +1,3 @@
+/* istanbul ignore file */
 export * from './base-config'
 export * from './ts-rollup-config'

src/fs/fs.ts

@@ -1,3 +1,5 @@
+/* istanbul ignore file */
+
 import * as fs from 'fs'
 import * as util from 'util'
 import * as childProcess from 'child_process'

src/utils/utils.ts

@@ -1,3 +1,5 @@
+/* istanbul ignore file */
+
 export * from './common'
 export * from './copy-package'
 export * from './copy-readme'