upgrade to koa-send@4

Author: haoxin

index.js

@@ -6,7 +6,7 @@
  */
 
 const debug = require('debug')('koa-static')
-const resolve = require('path').resolve
+const { resolve } = require('path')
 const assert = require('assert')
 const send = require('koa-send')
 
@@ -36,25 +36,31 @@ function serve (root, opts) {
   if (opts.index !== false) opts.index = opts.index || 'index.html'
 
   if (!opts.defer) {
-    return function serve (ctx, next) {
+    return async function serve (ctx, next) {
       if (ctx.method === 'HEAD' || ctx.method === 'GET') {
-        return send(ctx, ctx.path, opts).then(done => {
-          if (!done) {
-            return next()
-          }
-        })
+        try {
+          await send(ctx, ctx.path, opts)
+        } catch (err) {
+          await next()
+        }
+        return
       }
-      return next()
+
+      await next()
     }
   }
 
-  return function serve (ctx, next) {
-    return next().then(() => {
-      if (ctx.method !== 'HEAD' && ctx.method !== 'GET') return
-      // response is already handled
-      if (ctx.body != null || ctx.status !== 404) return // eslint-disable-line
+  return async function serve (ctx, next) {
+    await next()
+
+    if (ctx.method !== 'HEAD' && ctx.method !== 'GET') return
+    // response is already handled
+    if (ctx.body != null || ctx.status !== 404) return // eslint-disable-line
 
-      return send(ctx, ctx.path, opts)
-    })
+    try {
+      await send(ctx, ctx.path, opts)
+    } catch (err) {
+      ctx.status = err.status || 500
+    }
   }
 }

package.json

@@ -28,7 +28,7 @@
   "license": "MIT",
   "dependencies": {
     "debug": "^2.6.8",
-    "koa-send": "^3.2.0"
+    "koa-send": "^4.1.0"
   },
   "scripts": {
     "lint": "eslint --fix .",