deps: make "only" package inside (#1824)

closes #1802

lib/application.js

@@ -16,7 +16,7 @@ const Emitter = require('events')
 const util = require('util')
 const Stream = require('stream')
 const http = require('http')
-const only = require('only')
+const only = require('./only.js')
 const { HttpError } = require('http-errors')
 
 /** @typedef {typeof import ('./context') & {

lib/only.js

@@ -0,0 +1,11 @@
+module.exports = (obj, keys) => {
+ obj = obj || {}
+ if (typeof keys === 'string') keys = keys.split(/ +/)
+ const ret = {}
+ for (let i = 0; i < keys.length; i++) {
+ const key = keys[i]
+ if (obj[key] == null) continue
+ ret[key] = obj[key]
+ }
+ return ret
+}

lib/request.js

@@ -13,7 +13,7 @@ const parse = require('parseurl')
 const qs = require('querystring')
 const typeis = require('type-is')
 const fresh = require('fresh')
-const only = require('only')
+const only = require('./only.js')
 const util = require('util')
 
 const IP = Symbol('context#ip')

lib/response.js

@@ -14,7 +14,7 @@ const destroy = require('destroy')
 const assert = require('assert')
 const extname = require('path').extname
 const vary = require('vary')
-const only = require('only')
+const only = require('./only.js')
 const util = require('util')
 const encodeUrl = require('encodeurl')
 const Stream = require('stream')

package.json

@@ -51,7 +51,6 @@
  "http-errors": "^1.6.3",
  "koa-compose": "^4.1.0",
  "on-finished": "^2.3.0",
- "only": "~0.0.2",
  "parseurl": "^1.3.2",
  "statuses": "^1.5.0",
  "type-is": "^1.6.16",