feat(root-link-target): drop Node.js support and use async/await

.changeset/quick-dancers-juggle.md

@@ -0,0 +1,5 @@
+---
+"root-link-target": major
+---
+
+Drop Node.js 8 support and use async/await syntax.

root-link-target/index.js

@@ -4,27 +4,21 @@ const path = require('path')
 const pathTemp = require('path-temp')
 const nextPath = require('next-path')
 
-module.exports = (filePath) => {
+module.exports = async (filePath) => {
   filePath = path.resolve(filePath)
   const end = path.dirname(filePath)
   let dir = path.parse(end).root
 
-  return new Promise((resolve, reject) => {
-    (function can () {
-      canLink(filePath, pathTemp(dir))
-        .then((result) => {
-          if (result) {
-            resolve(dir)
-          } else if (dir === end) {
-            reject(new Error(`${filePath} cannot be linked to anywhere`))
-          } else {
-            dir = nextPath(dir, end)
-            can()
-          }
-        })
-        .catch(reject)
-    }())
-  })
+  while (true) {
+    const result = await canLink(filePath, pathTemp(dir))
+    if (result) {
+      return dir
+    } else if (dir === end) {
+      throw new Error(`${filePath} cannot be linked to anywhere`)
+    } else {
+      dir = nextPath(dir, end)
+    }
+  }
 }
 
 module.exports.sync = (filePath) => {

root-link-target/package.json

@@ -19,7 +19,7 @@
     "fs"
   ],
   "engines": {
-    "node": ">=8.15"
+    "node": ">=10"
   },
   "author": "Zoltan Kochan <z@kochan.io> (https://www.kochan.io/)",
   "license": "MIT",

root-link-target/test.js

@@ -7,11 +7,8 @@ test('rootLinkTarget.sync()', t => {
   t.end()
 })
 
-test('rootLinkTarget.sync()', t => {
-  rootLinkTarget('package.json')
-    .then(root => {
-      t.equal(typeof root, 'string')
-      t.end()
-    })
-    .catch(t.end)
+test('rootLinkTarget.sync()', async t => {
+  const root = await rootLinkTarget('package.json')
+  t.equal(typeof root, 'string')
+  t.end()
 })