3 files changed, 406 insertions, 0 deletions
diff --git a/node_modules/fs-extra/lib/copy/copy-sync.js b/node_modules/fs-extra/lib/copy/copy-sync.js
new file mode 100644
index 0000000..8bc6011
--- /dev/null
+++ b/node_modules/fs-extra/lib/copy/copy-sync.js
@@ -0,0 +1,161 @@
+'use strict'
+
+const fs = require('graceful-fs')
+const path = require('path')
+const mkdirsSync = require('../mkdirs').mkdirsSync
+const utimesMillisSync = require('../util/utimes').utimesMillisSync
+const stat = require('../util/stat')
+
+function copySync (src, dest, opts) {
+  if (typeof opts === 'function') {
+    opts = { filter: opts }
+  }
+
+  opts = opts || {}
+  opts.clobber = 'clobber' in opts ? !!opts.clobber : true // default to true for now
+  opts.overwrite = 'overwrite' in opts ? !!opts.overwrite : opts.clobber // overwrite falls back to clobber
+
+  // Warn about using preserveTimestamps on 32-bit node
+  if (opts.preserveTimestamps && process.arch === 'ia32') {
+    process.emitWarning(
+      'Using the preserveTimestamps option in 32-bit node is not recommended;\n\n' +
+      '\tsee https://github.com/jprichardson/node-fs-extra/issues/269',
+      'Warning', 'fs-extra-WARN0002'
+    )
+  }
+
+  const { srcStat, destStat } = stat.checkPathsSync(src, dest, 'copy', opts)
+  stat.checkParentPathsSync(src, srcStat, dest, 'copy')
+  if (opts.filter && !opts.filter(src, dest)) return
+  const destParent = path.dirname(dest)
+  if (!fs.existsSync(destParent)) mkdirsSync(destParent)
+  return getStats(destStat, src, dest, opts)
+}
+
+function getStats (destStat, src, dest, opts) {
+  const statSync = opts.dereference ? fs.statSync : fs.lstatSync
+  const srcStat = statSync(src)
+
+  if (srcStat.isDirectory()) return onDir(srcStat, destStat, src, dest, opts)
+  else if (srcStat.isFile() ||
+           srcStat.isCharacterDevice() ||
+           srcStat.isBlockDevice()) return onFile(srcStat, destStat, src, dest, opts)
+  else if (srcStat.isSymbolicLink()) return onLink(destStat, src, dest, opts)
+  else if (srcStat.isSocket()) throw new Error(`Cannot copy a socket file: ${src}`)
+  else if (srcStat.isFIFO()) throw new Error(`Cannot copy a FIFO pipe: ${src}`)
+  throw new Error(`Unknown file: ${src}`)
+}
+
+function onFile (srcStat, destStat, src, dest, opts) {
+  if (!destStat) return copyFile(srcStat, src, dest, opts)
+  return mayCopyFile(srcStat, src, dest, opts)
+}
+
+function mayCopyFile (srcStat, src, dest, opts) {
+  if (opts.overwrite) {
+    fs.unlinkSync(dest)
+    return copyFile(srcStat, src, dest, opts)
+  } else if (opts.errorOnExist) {
+    throw new Error(`'${dest}' already exists`)
+  }
+}
+
+function copyFile (srcStat, src, dest, opts) {
+  fs.copyFileSync(src, dest)
+  if (opts.preserveTimestamps) handleTimestamps(srcStat.mode, src, dest)
+  return setDestMode(dest, srcStat.mode)
+}
+
+function handleTimestamps (srcMode, src, dest) {
+  // Make sure the file is writable before setting the timestamp
+  // otherwise open fails with EPERM when invoked with 'r+'
+  // (through utimes call)
+  if (fileIsNotWritable(srcMode)) makeFileWritable(dest, srcMode)
+  return setDestTimestamps(src, dest)
+}
+
+function fileIsNotWritable (srcMode) {
+  return (srcMode & 0o200) === 0
+}
+
+function makeFileWritable (dest, srcMode) {
+  return setDestMode(dest, srcMode | 0o200)
+}
+
+function setDestMode (dest, srcMode) {
+  return fs.chmodSync(dest, srcMode)
+}
+
+function setDestTimestamps (src, dest) {
+  // The initial srcStat.atime cannot be trusted
+  // because it is modified by the read(2) system call
+  // (See https://nodejs.org/api/fs.html#fs_stat_time_values)
+  const updatedSrcStat = fs.statSync(src)
+  return utimesMillisSync(dest, updatedSrcStat.atime, updatedSrcStat.mtime)
+}
+
+function onDir (srcStat, destStat, src, dest, opts) {
+  if (!destStat) return mkDirAndCopy(srcStat.mode, src, dest, opts)
+  return copyDir(src, dest, opts)
+}
+
+function mkDirAndCopy (srcMode, src, dest, opts) {
+  fs.mkdirSync(dest)
+  copyDir(src, dest, opts)
+  return setDestMode(dest, srcMode)
+}
+
+function copyDir (src, dest, opts) {
+  fs.readdirSync(src).forEach(item => copyDirItem(item, src, dest, opts))
+}
+
+function copyDirItem (item, src, dest, opts) {
+  const srcItem = path.join(src, item)
+  const destItem = path.join(dest, item)
+  if (opts.filter && !opts.filter(srcItem, destItem)) return
+  const { destStat } = stat.checkPathsSync(srcItem, destItem, 'copy', opts)
+  return getStats(destStat, srcItem, destItem, opts)
+}
+
+function onLink (destStat, src, dest, opts) {
+  let resolvedSrc = fs.readlinkSync(src)
+  if (opts.dereference) {
+    resolvedSrc = path.resolve(process.cwd(), resolvedSrc)
+  }
+
+  if (!destStat) {
+    return fs.symlinkSync(resolvedSrc, dest)
+  } else {
+    let resolvedDest
+    try {
+      resolvedDest = fs.readlinkSync(dest)
+    } catch (err) {
+      // dest exists and is a regular file or directory,
+      // Windows may throw UNKNOWN error. If dest already exists,
+      // fs throws error anyway, so no need to guard against it here.
+      if (err.code === 'EINVAL' || err.code === 'UNKNOWN') return fs.symlinkSync(resolvedSrc, dest)
+      throw err
+    }
+    if (opts.dereference) {
+      resolvedDest = path.resolve(process.cwd(), resolvedDest)
+    }
+    if (stat.isSrcSubdir(resolvedSrc, resolvedDest)) {
+      throw new Error(`Cannot copy '${resolvedSrc}' to a subdirectory of itself, '${resolvedDest}'.`)
+    }
+
+    // prevent copy if src is a subdir of dest since unlinking
+    // dest in this case would result in removing src contents
+    // and therefore a broken symlink would be created.
+    if (stat.isSrcSubdir(resolvedDest, resolvedSrc)) {
+      throw new Error(`Cannot overwrite '${resolvedDest}' with '${resolvedSrc}'.`)
+    }
+    return copyLink(resolvedSrc, dest)
+  }
+}
+
+function copyLink (resolvedSrc, dest) {
+  fs.unlinkSync(dest)
+  return fs.symlinkSync(resolvedSrc, dest)
+}
+
+module.exports = copySync
diff --git a/node_modules/fs-extra/lib/copy/copy.js b/node_modules/fs-extra/lib/copy/copy.js
new file mode 100644
index 0000000..bc188fb
--- /dev/null
+++ b/node_modules/fs-extra/lib/copy/copy.js
@@ -0,0 +1,238 @@
+'use strict'
+
+const fs = require('graceful-fs')
+const path = require('path')
+const mkdirs = require('../mkdirs').mkdirs
+const pathExists = require('../path-exists').pathExists
+const utimesMillis = require('../util/utimes').utimesMillis
+const stat = require('../util/stat')
+
+function copy (src, dest, opts, cb) {
+  if (typeof opts === 'function' && !cb) {
+    cb = opts
+    opts = {}
+  } else if (typeof opts === 'function') {
+    opts = { filter: opts }
+  }
+
+  cb = cb || function () {}
+  opts = opts || {}
+
+  opts.clobber = 'clobber' in opts ? !!opts.clobber : true // default to true for now
+  opts.overwrite = 'overwrite' in opts ? !!opts.overwrite : opts.clobber // overwrite falls back to clobber
+
+  // Warn about using preserveTimestamps on 32-bit node
+  if (opts.preserveTimestamps && process.arch === 'ia32') {
+    process.emitWarning(
+      'Using the preserveTimestamps option in 32-bit node is not recommended;\n\n' +
+      '\tsee https://github.com/jprichardson/node-fs-extra/issues/269',
+      'Warning', 'fs-extra-WARN0001'
+    )
+  }
+
+  stat.checkPaths(src, dest, 'copy', opts, (err, stats) => {
+    if (err) return cb(err)
+    const { srcStat, destStat } = stats
+    stat.checkParentPaths(src, srcStat, dest, 'copy', err => {
+      if (err) return cb(err)
+      runFilter(src, dest, opts, (err, include) => {
+        if (err) return cb(err)
+        if (!include) return cb()
+
+        checkParentDir(destStat, src, dest, opts, cb)
+      })
+    })
+  })
+}
+
+function checkParentDir (destStat, src, dest, opts, cb) {
+  const destParent = path.dirname(dest)
+  pathExists(destParent, (err, dirExists) => {
+    if (err) return cb(err)
+    if (dirExists) return getStats(destStat, src, dest, opts, cb)
+    mkdirs(destParent, err => {
+      if (err) return cb(err)
+      return getStats(destStat, src, dest, opts, cb)
+    })
+  })
+}
+
+function runFilter (src, dest, opts, cb) {
+  if (!opts.filter) return cb(null, true)
+  Promise.resolve(opts.filter(src, dest))
+    .then(include => cb(null, include), error => cb(error))
+}
+
+function getStats (destStat, src, dest, opts, cb) {
+  const stat = opts.dereference ? fs.stat : fs.lstat
+  stat(src, (err, srcStat) => {
+    if (err) return cb(err)
+
+    if (srcStat.isDirectory()) return onDir(srcStat, destStat, src, dest, opts, cb)
+    else if (srcStat.isFile() ||
+             srcStat.isCharacterDevice() ||
+             srcStat.isBlockDevice()) return onFile(srcStat, destStat, src, dest, opts, cb)
+    else if (srcStat.isSymbolicLink()) return onLink(destStat, src, dest, opts, cb)
+    else if (srcStat.isSocket()) return cb(new Error(`Cannot copy a socket file: ${src}`))
+    else if (srcStat.isFIFO()) return cb(new Error(`Cannot copy a FIFO pipe: ${src}`))
+    return cb(new Error(`Unknown file: ${src}`))
+  })
+}
+
+function onFile (srcStat, destStat, src, dest, opts, cb) {
+  if (!destStat) return copyFile(srcStat, src, dest, opts, cb)
+  return mayCopyFile(srcStat, src, dest, opts, cb)
+}
+
+function mayCopyFile (srcStat, src, dest, opts, cb) {
+  if (opts.overwrite) {
+    fs.unlink(dest, err => {
+      if (err) return cb(err)
+      return copyFile(srcStat, src, dest, opts, cb)
+    })
+  } else if (opts.errorOnExist) {
+    return cb(new Error(`'${dest}' already exists`))
+  } else return cb()
+}
+
+function copyFile (srcStat, src, dest, opts, cb) {
+  fs.copyFile(src, dest, err => {
+    if (err) return cb(err)
+    if (opts.preserveTimestamps) return handleTimestampsAndMode(srcStat.mode, src, dest, cb)
+    return setDestMode(dest, srcStat.mode, cb)
+  })
+}
+
+function handleTimestampsAndMode (srcMode, src, dest, cb) {
+  // Make sure the file is writable before setting the timestamp
+  // otherwise open fails with EPERM when invoked with 'r+'
+  // (through utimes call)
+  if (fileIsNotWritable(srcMode)) {
+    return makeFileWritable(dest, srcMode, err => {
+      if (err) return cb(err)
+      return setDestTimestampsAndMode(srcMode, src, dest, cb)
+    })
+  }
+  return setDestTimestampsAndMode(srcMode, src, dest, cb)
+}
+
+function fileIsNotWritable (srcMode) {
+  return (srcMode & 0o200) === 0
+}
+
+function makeFileWritable (dest, srcMode, cb) {
+  return setDestMode(dest, srcMode | 0o200, cb)
+}
+
+function setDestTimestampsAndMode (srcMode, src, dest, cb) {
+  setDestTimestamps(src, dest, err => {
+    if (err) return cb(err)
+    return setDestMode(dest, srcMode, cb)
+  })
+}
+
+function setDestMode (dest, srcMode, cb) {
+  return fs.chmod(dest, srcMode, cb)
+}
+
+function setDestTimestamps (src, dest, cb) {
+  // The initial srcStat.atime cannot be trusted
+  // because it is modified by the read(2) system call
+  // (See https://nodejs.org/api/fs.html#fs_stat_time_values)
+  fs.stat(src, (err, updatedSrcStat) => {
+    if (err) return cb(err)
+    return utimesMillis(dest, updatedSrcStat.atime, updatedSrcStat.mtime, cb)
+  })
+}
+
+function onDir (srcStat, destStat, src, dest, opts, cb) {
+  if (!destStat) return mkDirAndCopy(srcStat.mode, src, dest, opts, cb)
+  return copyDir(src, dest, opts, cb)
+}
+
+function mkDirAndCopy (srcMode, src, dest, opts, cb) {
+  fs.mkdir(dest, err => {
+    if (err) return cb(err)
+    copyDir(src, dest, opts, err => {
+      if (err) return cb(err)
+      return setDestMode(dest, srcMode, cb)
+    })
+  })
+}
+
+function copyDir (src, dest, opts, cb) {
+  fs.readdir(src, (err, items) => {
+    if (err) return cb(err)
+    return copyDirItems(items, src, dest, opts, cb)
+  })
+}
+
+function copyDirItems (items, src, dest, opts, cb) {
+  const item = items.pop()
+  if (!item) return cb()
+  return copyDirItem(items, item, src, dest, opts, cb)
+}
+
+function copyDirItem (items, item, src, dest, opts, cb) {
+  const srcItem = path.join(src, item)
+  const destItem = path.join(dest, item)
+  runFilter(srcItem, destItem, opts, (err, include) => {
+    if (err) return cb(err)
+    if (!include) return copyDirItems(items, src, dest, opts, cb)
+
+    stat.checkPaths(srcItem, destItem, 'copy', opts, (err, stats) => {
+      if (err) return cb(err)
+      const { destStat } = stats
+      getStats(destStat, srcItem, destItem, opts, err => {
+        if (err) return cb(err)
+        return copyDirItems(items, src, dest, opts, cb)
+      })
+    })
+  })
+}
+
+function onLink (destStat, src, dest, opts, cb) {
+  fs.readlink(src, (err, resolvedSrc) => {
+    if (err) return cb(err)
+    if (opts.dereference) {
+      resolvedSrc = path.resolve(process.cwd(), resolvedSrc)
+    }
+
+    if (!destStat) {
+      return fs.symlink(resolvedSrc, dest, cb)
+    } else {
+      fs.readlink(dest, (err, resolvedDest) => {
+        if (err) {
+          // dest exists and is a regular file or directory,
+          // Windows may throw UNKNOWN error. If dest already exists,
+          // fs throws error anyway, so no need to guard against it here.
+          if (err.code === 'EINVAL' || err.code === 'UNKNOWN') return fs.symlink(resolvedSrc, dest, cb)
+          return cb(err)
+        }
+        if (opts.dereference) {
+          resolvedDest = path.resolve(process.cwd(), resolvedDest)
+        }
+        if (stat.isSrcSubdir(resolvedSrc, resolvedDest)) {
+          return cb(new Error(`Cannot copy '${resolvedSrc}' to a subdirectory of itself, '${resolvedDest}'.`))
+        }
+
+        // do not copy if src is a subdir of dest since unlinking
+        // dest in this case would result in removing src contents
+        // and therefore a broken symlink would be created.
+        if (stat.isSrcSubdir(resolvedDest, resolvedSrc)) {
+          return cb(new Error(`Cannot overwrite '${resolvedDest}' with '${resolvedSrc}'.`))
+        }
+        return copyLink(resolvedSrc, dest, cb)
+      })
+    }
+  })
+}
+
+function copyLink (resolvedSrc, dest, cb) {
+  fs.unlink(dest, err => {
+    if (err) return cb(err)
+    return fs.symlink(resolvedSrc, dest, cb)
+  })
+}
+
+module.exports = copy
diff --git a/node_modules/fs-extra/lib/copy/index.js b/node_modules/fs-extra/lib/copy/index.js
new file mode 100644
index 0000000..45c07a2
--- /dev/null
+++ b/node_modules/fs-extra/lib/copy/index.js
@@ -0,0 +1,7 @@
+'use strict'
+
+const u = require('universalify').fromCallback
+module.exports = {
+  copy: u(require('./copy')),
+  copySync: require('./copy-sync')
+}