Remove util.promisify polyfill for Node 6

CHANGELOG.md

@@ -13,6 +13,10 @@
 - Add toggle button for listing all served resources in server mode ([#49](https://github.com/marp-team/marp-cli/pull/49))
 - Toggle full screen by hitting <kbd>f</kbd> / <kbd>F11</kbd> in `bespoke` template ([#50](https://github.com/marp-team/marp-cli/pull/50))
 
+### Removed
+
+- Remove `util.promisify` polyfill for Node 6 ([#53](https://github.com/marp-team/marp-cli/pull/53))
+
 ## v0.0.15 - 2018-12-06
 
 ### Added

package.json

@@ -119,7 +119,6 @@
     "serve-index": "^1.9.1",
     "terminate": "^2.1.2",
     "tmp": "^0.0.33",
-    "util.promisify": "^1.0.0",
     "ws": "^6.1.2",
     "yargs": "^12.0.5"
   }

rollup.config.js

@@ -20,6 +20,7 @@ const external = [
   'path',
   'querystring',
   'url',
+  'util',
   'chrome-launcher/dist/chrome-finder',
   'yargs/yargs',
 ]

src/config.ts

@@ -4,7 +4,7 @@ import cosmiconfig from 'cosmiconfig'
 import path from 'path'
 import fs from 'fs'
 import osLocale from 'os-locale'
-import promisify from 'util.promisify'
+import { promisify } from 'util'
 import { info, warn } from './cli'
 import { ConverterOption, ConvertType } from './converter'
 import resolveEngine, { ResolvableEngine, ResolvedEngine } from './engine'

src/engine.ts

@@ -2,7 +2,7 @@ import { Marpit } from '@marp-team/marpit'
 import fs from 'fs'
 import path from 'path'
 import pkgUp from 'pkg-up'
-import promisify from 'util.promisify'
+import { promisify } from 'util'
 import importFrom from 'import-from'
 import { CLIError } from './error'
 

src/file.ts

@@ -4,9 +4,9 @@ import globby from 'globby'
 import mkdirp from 'mkdirp'
 import path from 'path'
 import { tmpName } from 'tmp'
-import promisify from 'util.promisify'
+import { promisify } from 'util'
 
-const mkdirpPromise = promisify(mkdirp)
+const mkdirpPromise = promisify<string, any>(mkdirp)
 const readFile = promisify(fs.readFile)
 const tmpNamePromise = promisify(tmpName)
 const unlink = promisify(fs.unlink)

src/server.ts

@@ -4,7 +4,7 @@ import path from 'path'
 import querystring from 'querystring'
 import serveIndex from 'serve-index'
 import url from 'url'
-import promisify from 'util.promisify'
+import { promisify } from 'util'
 import { Converter, ConvertedCallback, ConvertType } from './converter'
 import { error } from './error'
 import { File, markdownExtensions } from './file'

src/templates/index.ts

@@ -1,7 +1,7 @@
 import { MarpitOptions, MarpitRenderResult, Element } from '@marp-team/marpit'
 import fs from 'fs'
 import path from 'path'
-import promisify from 'util.promisify'
+import { promisify } from 'util'
 import barePug from './bare/bare.pug'
 import bareScss from './bare/bare.scss'
 import bespokePug from './bespoke/bespoke.pug'

src/theme.ts

@@ -2,7 +2,7 @@ import { Marpit } from '@marp-team/marpit'
 import fs from 'fs'
 import globby from 'globby'
 import path from 'path'
-import promisify from 'util.promisify'
+import { promisify } from 'util'
 import { warn } from './cli'
 
 const lstat = promisify(fs.lstat)

test/__mocks__/fs.ts

@@ -1,8 +1,8 @@
-import { custom } from 'util.promisify'
+import { promisify } from 'util'
 
 const fs = require.requireActual('fs')
 
-fs.writeFile[custom] = (path, data) =>
+fs.writeFile[promisify.custom] = (path, data) =>
   new Promise((resolve, reject) =>
     fs.writeFile(path, data, e => (e ? reject(e) : resolve()))
   )