node: support for version 10, 8 and 7

.travis.yml

@@ -1,9 +1,10 @@
 sudo: false
 language: node_js
 
-matrix:
-  include:
-    - node_js: "10"
+node_js:
+  - 10
+  - 8
+  - 7
 
 cache:
   directories:

lib/installer.js

@@ -1,7 +1,7 @@
 const fs = require('fs');
 const path = require('path');
 const untildify = require('untildify');
-const { promisify } = require('util');
+const { promisify } = require('es6-promisify');
 const debug = require('./utils/tabtabDebug')('tabtab:installer');
 
 const readFile = promisify(fs.readFile);

package.json

@@ -46,6 +46,7 @@
   },
   "dependencies": {
     "debug": "^4.0.1",
+    "es6-promisify": "^6.0.0",
     "inquirer": "^6.0.0",
     "minimist": "^1.2.0",
     "untildify": "^3.0.3"

readme.md

@@ -14,8 +14,8 @@ node's land.
 
 -   Windows is not supported
 -   Cache has been removed
--   Now only support node `> 10.10.0`, for previous version with support for node
-    6/8 be sure to use tabtab `2.2.x`
+-   Now only support node `> 7.10.1`, for previous version with support for node
+    6 be sure to use tabtab `2.2.x`
 
 ## Table of Contents
 

test/installer.js

@@ -2,7 +2,7 @@ const assert = require('assert');
 const fs = require('fs');
 const path = require('path');
 const untildify = require('untildify');
-const { promisify } = require('util');
+const { promisify } = require('es6-promisify');
 const {
   install,
   uninstall,

test/tabtab-install.js

@@ -5,7 +5,7 @@ const debug = require('debug')('tabtab:test:install');
 const untildify = require('untildify');
 const path = require('path');
 const fs = require('fs');
-const { promisify } = require('util');
+const { promisify } = require('es6-promisify');
 
 const readFile = promisify(fs.readFile);