From 5651695a99b12bc081299ecd7b7dc1effcaa5204 Mon Sep 17 00:00:00 2001
From: peterjc123 <peter_jiachen@163.com>
Date: Tue, 10 Apr 2018 01:54:10 +0800
Subject: [PATCH] Fixes #6386, Use copies instead of symbolic files (#6396)

* Use copies instead of symbolic files

* bug fix

* Remove useless item
---
 .gitignore                    | 4 ++++
 .jenkins/pytorch/win-build.sh | 2 --
 README.md                     | 2 --
 setup.py                      | 9 +++++++++
 tools/shared/cwrap_common.py  | 1 -
 5 files changed, 13 insertions(+), 5 deletions(-)
 delete mode 120000 tools/shared/cwrap_common.py

diff --git a/.gitignore b/.gitignore
index 839049ffcf51..29eb2fe454ad 100644
--- a/.gitignore
+++ b/.gitignore
@@ -57,6 +57,9 @@ test/data/linear.pt
 # macOS dir files
 .DS_Store
 
+# Symbolic files
+tools/shared/cwrap_common.py
+
 # Ninja files
 .ninja_deps
 .ninja_log
@@ -144,6 +147,7 @@ cmake_build
 gen
 .setuptools-cmake-build
 .pytest_cache
+aten/build/*
 
 # Bram
 plsdontbreak
diff --git a/.jenkins/pytorch/win-build.sh b/.jenkins/pytorch/win-build.sh
index eb0131f1a946..f3bb383cb2a8 100755
--- a/.jenkins/pytorch/win-build.sh
+++ b/.jenkins/pytorch/win-build.sh
@@ -76,8 +76,6 @@ set DISTUTILS_USE_SDK=1
 
 set CMAKE_GENERATOR=Ninja
 
-xcopy /Y aten\\src\\ATen\\common_with_cwrap.py tools\\shared\\cwrap_common.py
-
 set NO_CUDA=1
 
 python setup.py install
diff --git a/README.md b/README.md
index 40fc7b9419dc..c622daa7e294 100644
--- a/README.md
+++ b/README.md
@@ -209,8 +209,6 @@ MACOSX_DEPLOYMENT_TARGET=10.9 CC=clang CXX=clang++ python setup.py install
 
 On Windows
 ```cmd
-xcopy /Y aten\src\ATen\common_with_cwrap.py tools\shared\cwrap_common.py
-
 set "VS150COMNTOOLS=C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\VC\Auxiliary\Build"
 set CMAKE_GENERATOR=Visual Studio 15 2017 Win64
 set DISTUTILS_USE_SDK=1
diff --git a/setup.py b/setup.py
index 218b7ba4e82c..5645598b6f29 100644
--- a/setup.py
+++ b/setup.py
@@ -293,6 +293,15 @@ class build_deps(Command):
             libs += ['THD']
         build_libs(libs)
 
+        # Use copies instead of symbolic files.
+        # Windows has very poor support for them.
+        sym_files = ['tools/shared/cwrap_common.py']
+        orig_files = ['aten/src/ATen/common_with_cwrap.py']
+        for sym_file, orig_file in zip(sym_files, orig_files):
+            if os.path.exists(sym_file):
+                os.remove(sym_file)
+            shutil.copyfile(orig_file, sym_file)
+
         # Copy headers necessary to compile C++ extensions.
         #
         # This is not perfect solution as build does not depend on any of
diff --git a/tools/shared/cwrap_common.py b/tools/shared/cwrap_common.py
deleted file mode 120000
index 383d0f481e0d..000000000000
--- a/tools/shared/cwrap_common.py
+++ /dev/null
@@ -1 +0,0 @@
-../../aten/src/ATen/common_with_cwrap.py
\ No newline at end of file