build: Add some required modules for node

1 files changed, 118 insertions, 0 deletions

diff --git a/node_modules/fs-extra/lib/move-sync/index.js b/node_modules/fs-extra/lib/move-sync/index.js
new file mode 100644
index 0000000..a5e9114
--- /dev/null
+++ b/node_modules/fs-extra/lib/move-sync/index.js
@@ -0,0 +1,118 @@
+'use strict'
+
+const fs = require('graceful-fs')
+const path = require('path')
+const copySync = require('../copy-sync').copySync
+const removeSync = require('../remove').removeSync
+const mkdirpSync = require('../mkdirs').mkdirsSync
+const buffer = require('../util/buffer')
+
+function moveSync (src, dest, options) {
+  options = options || {}
+  const overwrite = options.overwrite || options.clobber || false
+
+  src = path.resolve(src)
+  dest = path.resolve(dest)
+
+  if (src === dest) return fs.accessSync(src)
+
+  if (isSrcSubdir(src, dest)) throw new Error(`Cannot move '${src}' into itself '${dest}'.`)
+
+  mkdirpSync(path.dirname(dest))
+  tryRenameSync()
+
+  function tryRenameSync () {
+    if (overwrite) {
+      try {
+        return fs.renameSync(src, dest)
+      } catch (err) {
+        if (err.code === 'ENOTEMPTY' || err.code === 'EEXIST' || err.code === 'EPERM') {
+          removeSync(dest)
+          options.overwrite = false // just overwriteed it, no need to do it again
+          return moveSync(src, dest, options)
+        }
+
+        if (err.code !== 'EXDEV') throw err
+        return moveSyncAcrossDevice(src, dest, overwrite)
+      }
+    } else {
+      try {
+        fs.linkSync(src, dest)
+        return fs.unlinkSync(src)
+      } catch (err) {
+        if (err.code === 'EXDEV' || err.code === 'EISDIR' || err.code === 'EPERM' || err.code === 'ENOTSUP') {
+          return moveSyncAcrossDevice(src, dest, overwrite)
+        }
+        throw err
+      }
+    }
+  }
+}
+
+function moveSyncAcrossDevice (src, dest, overwrite) {
+  const stat = fs.statSync(src)
+
+  if (stat.isDirectory()) {
+    return moveDirSyncAcrossDevice(src, dest, overwrite)
+  } else {
+    return moveFileSyncAcrossDevice(src, dest, overwrite)
+  }
+}
+
+function moveFileSyncAcrossDevice (src, dest, overwrite) {
+  const BUF_LENGTH = 64 * 1024
+  const _buff = buffer(BUF_LENGTH)
+
+  const flags = overwrite ? 'w' : 'wx'
+
+  const fdr = fs.openSync(src, 'r')
+  const stat = fs.fstatSync(fdr)
+  const fdw = fs.openSync(dest, flags, stat.mode)
+  let bytesRead = 1
+  let pos = 0
+
+  while (bytesRead > 0) {
+    bytesRead = fs.readSync(fdr, _buff, 0, BUF_LENGTH, pos)
+    fs.writeSync(fdw, _buff, 0, bytesRead)
+    pos += bytesRead
+  }
+
+  fs.closeSync(fdr)
+  fs.closeSync(fdw)
+  return fs.unlinkSync(src)
+}
+
+function moveDirSyncAcrossDevice (src, dest, overwrite) {
+  const options = {
+    overwrite: false
+  }
+
+  if (overwrite) {
+    removeSync(dest)
+    tryCopySync()
+  } else {
+    tryCopySync()
+  }
+
+  function tryCopySync () {
+    copySync(src, dest, options)
+    return removeSync(src)
+  }
+}
+
+// return true if dest is a subdir of src, otherwise false.
+// extract dest base dir and check if that is the same as src basename
+function isSrcSubdir (src, dest) {
+  try {
+    return fs.statSync(src).isDirectory() &&
+           src !== dest &&
+           dest.indexOf(src) > -1 &&
+           dest.split(path.dirname(src) + path.sep)[1].split(path.sep)[0] === path.basename(src)
+  } catch (e) {
+    return false
+  }
+}
+
+module.exports = {
+  moveSync
+}