node_modules

1 files changed, 42 insertions, 2 deletions

diff --git a/node_modules/fs-extra/lib/fs/index.js b/node_modules/fs-extra/lib/fs/index.js
index e20ae762a..551ca6a09 100644
--- a/node_modules/fs-extra/lib/fs/index.js
+++ b/node_modules/fs-extra/lib/fs/index.js
@@ -21,7 +21,6 @@ const api = [
   'lstat',
   'mkdir',
   'open',
-  'read',
   'readFile',
   'readdir',
   'readlink',
@@ -33,7 +32,6 @@ const api = [
   'truncate',
   'unlink',
   'utimes',
-  'write',
   'writeFile'
 ]
 // fs.mkdtemp() was added in Node.js v5.10.0, so check if it exists
@@ -59,3 +57,45 @@ exports.exists = function (filename, callback) {
     return fs.exists(filename, resolve)
   })
 }
+
+// fs.read() & fs.write need special treatment due to multiple callback args
+
+exports.read = function (fd, buffer, offset, length, position, callback) {
+  if (typeof callback === 'function') {
+    return fs.read(fd, buffer, offset, length, position, callback)
+  }
+  return new Promise((resolve, reject) => {
+    fs.read(fd, buffer, offset, length, position, (err, bytesRead, buffer) => {
+      if (err) return reject(err)
+      resolve({ bytesRead, buffer })
+    })
+  })
+}
+
+// Function signature can be
+// fs.write(fd, buffer[, offset[, length[, position]]], callback)
+// OR
+// fs.write(fd, string[, position[, encoding]], callback)
+// so we need to handle both cases
+exports.write = function (fd, buffer, a, b, c, callback) {
+  if (typeof arguments[arguments.length - 1] === 'function') {
+    return fs.write(fd, buffer, a, b, c, callback)
+  }
+
+  // Check for old, depricated fs.write(fd, string[, position[, encoding]], callback)
+  if (typeof buffer === 'string') {
+    return new Promise((resolve, reject) => {
+      fs.write(fd, buffer, a, b, (err, bytesWritten, buffer) => {
+        if (err) return reject(err)
+        resolve({ bytesWritten, buffer })
+      })
+    })
+  }
+
+  return new Promise((resolve, reject) => {
+    fs.write(fd, buffer, a, b, c, (err, bytesWritten, buffer) => {
+      if (err) return reject(err)
+      resolve({ bytesWritten, buffer })
+    })
+  })
+}