1 files changed, 60 insertions, 0 deletions
diff --git a/node_modules/@iarna/cli/app.js b/node_modules/@iarna/cli/app.js
new file mode 100644
index 000000000..6404a28fa
--- /dev/null
+++ b/node_modules/@iarna/cli/app.js
@@ -0,0 +1,60 @@
+'use strict'
+const onExit = require('signal-exit')
+const yargs = require('yargs')
+const path = require('path')
+const fs = require('fs')
+const binName = path.basename(require.main.filename, '.js')
+const mainPath = path.resolve(require.main.paths[0], '..')
+
+module.exports = function (entry) {
+  let started = false
+  let exited = false
+  onExit((code, signal) => {
+    if (started && !exited) {
+      if (signal) {
+        console.error('Abnormal exit:', signal)
+      } else {
+        console.error('Abnormal exit: Promises not resolved')
+      }
+      process.exit(code || 1)
+    }
+  })
+  fs.readFile(mainPath + '/package.json', (err, data) => {
+    try {
+      const pkg = JSON.parse(data)
+      const nameMatch = new RegExp(binName, 'i')
+      let isInPackage = typeof pkg.bin === 'string'
+        ? nameMatch.test(pkg.bin)
+        : Object.keys(pkg.bin).some(b => nameMatch.test(b) || nameMatch.test(pkg.bin[b]))
+      if (isInPackage) {
+        const updateNotifier = require('update-notifier');
+        updateNotifier({pkg: pkg}).notify()
+      }
+    } catch (ex) { /* don't care */ }
+  })
+
+  setImmediate(() => {
+    const argv = yargs.argv
+    started = true
+    try {
+      const appPromise = entry.apply(null, [argv].concat(argv._))
+      if (!appPromise || !appPromise.then) {
+        return onError(new Error('Error: Application entry point' + (entry.name ? ` (${entry.name})` : '') + ' did not return a promise.'))
+      }
+      appPromise.then(() => exited = true, onError)
+    } catch (ex) {
+      onError (ex)
+    }
+    function onError (err) {
+      exited = true
+      if (typeof err === 'number') {
+        process.exit(err)
+      } else if (err) {
+        console.error(err && err.stack ? err.stack : err)
+      }
+      process.exit(1)
+    }
+  })
+  return yargs
+}
+