fix: UnhandledPromiseRejectionWarning: TypeError: execa.shellSync is …

…not a function #95

package.json

@@ -20,7 +20,6 @@
   },
   "dependencies": {
     "elementtree": "^0.1.7",
-    "execa": "^2.0.4",
     "fs-extra": "^8.1.0",
     "imagemin": "^7.0.0",
     "imagemin-optipng": "^7.0.0",

src/index.js

@@ -1,6 +1,6 @@
 const { join } = require('path')
+const { spawnSync } = require('./utils/spawn.js')
 const icongenie = require('../lib/index.js')
-const execa = require('execa')
 const settings = require('../lib/settings')
 const { copySync, existsSync, readFileSync, writeFileSync } = require('fs-extra')
 const { validatePng, computeHash, validateHexRGB } = require('./utils')
@@ -62,7 +62,13 @@ Splashscreens for Cordova requires a Cordova plugin
 Attempting to install it...
 `)
 
-    execa.shellSync(`cd ${api.resolve.cordova('.')} && cordova plugin add cordova-plugin-splashscreen`)
+    spawnSync('cordova', [ 'plugin', 'add', 'cordova-plugin-splashscreen' ], {
+      cwd: api.resolve.cordova('.')
+    }, () => {
+      console.log()
+      console.error('Failed to install cordova-plugin-splashscreen. Please do it manually.')
+      console.log()
+    })
 
     if (!plugins.find(node => node.attrib.name === 'cordova-plugin-splashscreen')) {
       // add the splashscreen but get the right version installed

src/utils/spawn.js

@@ -0,0 +1,20 @@
+const crossSpawn = require('cross-spawn')
+
+module.exports.spawnSync = function (cmd, params, opts, onFail) {
+  console.log(`[sync] Running "${cmd} ${params.join(' ')}"\n`)
+
+  const runner = crossSpawn.sync(
+    cmd,
+    params,
+    { stdio: 'inherit', stdout: 'inherit', stderr: 'inherit', ...opts }
+  )
+
+  if (runner.status || runner.error) {
+    console.log()
+    console.error(`⚠️  Command "${cmd}" failed with exit code: ${runner.status}`)
+    if (runner.status === null) {
+      console.error(`⚠️  Please globally install "${cmd}"`)
+    }
+    onFail && onFail()
+  }
+}