fs: expose copy-on-write flags for fs.copyFile()

This commit exposes the UV_FS_COPYFILE_FICLONE and
UV_FS_COPYFILE_FICLONE_FORCE flags added in libuv 1.20.0.

Fixes: https://github.com/nodejs/node/issues/19152
PR-URL: https://github.com/nodejs/node/pull/19759
Fixes: https://github.com/nodejs/node/issues/19152
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

1 files changed, 9 insertions, 1 deletions

diff --git a/lib/fs.js b/lib/fs.js
index 85c939cc4a..780940b4f4 100644
--- a/lib/fs.js
+++ b/lib/fs.js
@@ -1916,7 +1916,15 @@ fs.mkdtempSync = function(prefix, options) {
 
 // Define copyFile() flags.
 Object.defineProperties(fs.constants, {
-  COPYFILE_EXCL: { enumerable: true, value: constants.UV_FS_COPYFILE_EXCL }
+  COPYFILE_EXCL: { enumerable: true, value: constants.UV_FS_COPYFILE_EXCL },
+  COPYFILE_FICLONE: {
+    enumerable: true,
+    value: constants.UV_FS_COPYFILE_FICLONE
+  },
+  COPYFILE_FICLONE_FORCE: {
+    enumerable: true,
+    value: constants.UV_FS_COPYFILE_FICLONE_FORCE
+  }
 });