* first action! (#1)

node_modules/move-concurrently/move.js

@@ -0,0 +1,84 @@
+'use strict'
+module.exports = move
+
+var nodeFs = require('fs')
+var rimraf = require('rimraf')
+var validate = require('aproba')
+var copy = require('copy-concurrently')
+var RunQueue = require('run-queue')
+var extend = Object.assign || require('util')._extend
+
+function promisify (Promise, fn) {
+  return function () {
+    var args = [].slice.call(arguments)
+    return new Promise(function (resolve, reject) {
+      return fn.apply(null, args.concat(function (err, value) {
+        if (err) {
+          reject(err)
+        } else {
+          resolve(value)
+        }
+      }))
+    })
+  }
+}
+
+function move (from, to, opts) {
+  validate('SSO|SS', arguments)
+  opts = extend({}, opts || {})
+
+  var Promise = opts.Promise || global.Promise
+  var fs = opts.fs || nodeFs
+  var rimrafAsync = promisify(Promise, rimraf)
+  var renameAsync = promisify(Promise, fs.rename)
+
+  opts.top = from
+
+  var queue = new RunQueue({
+    maxConcurrency: opts.maxConcurrency,
+    Promise: Promise
+  })
+  opts.queue = queue
+  opts.recurseWith = rename
+
+  queue.add(0, rename, [from, to, opts])
+
+  return queue.run().then(function () {
+    return remove(from)
+  }, function (err) {
+    // if the target already exists don't clobber it
+    if (err.code === 'EEXIST' || err.code === 'EPERM') {
+      return passThroughError()
+    } else {
+      return remove(to).then(passThroughError, passThroughError)
+    }
+    function passThroughError () {
+      return Promise.reject(err)
+    }
+  })
+
+  function remove (target) {
+    var opts = {
+      unlink: fs.unlink,
+      chmod: fs.chmod,
+      stat: fs.stat,
+      lstat: fs.lstat,
+      rmdir: fs.rmdir,
+      readdir: fs.readdir,
+      glob: false
+    }
+    return rimrafAsync(target, opts)
+  }
+
+  function rename (from, to, opts, done) {
+    return renameAsync(from, to).catch(function (err) {
+      if (err.code !== 'EXDEV') {
+        return Promise.reject(err)
+      } else {
+        return remove(to).then(function () {
+          return copy.item(from, to, opts)
+        })
+      }
+    })
+  }
+}