Add torch.version.git_version (#18299)

Summary:
Fixes: https://github.com/pytorch/pytorch/issues/18293
cc: colesbury
Pull Request resolved: https://github.com/pytorch/pytorch/pull/18299

Differential Revision: D14611972

Pulled By: soumith

fbshipit-source-id: cdb48ef37c8869713a9a43ea0da08e1bed9279a2

1 files changed, 10 insertions, 6 deletions

diff --git a/setup.py b/setup.py
index deed8b5d1c..d501c54a90 100644
--- a/setup.py
+++ b/setup.py
@@ -231,18 +231,21 @@ cmake_python_include_dir = distutils.sysconfig.get_python_inc()
 ################################################################################
 package_name = os.getenv('TORCH_PACKAGE_NAME', 'torch')
 version = '1.1.0a0'
+sha = 'Unknown'
+
+try:
+    sha = subprocess.check_output(['git', 'rev-parse', 'HEAD'], cwd=cwd).decode('ascii').strip()
+except Exception:
+    pass
+
 if os.getenv('PYTORCH_BUILD_VERSION'):
     assert os.getenv('PYTORCH_BUILD_NUMBER') is not None
     build_number = int(os.getenv('PYTORCH_BUILD_NUMBER'))
     version = os.getenv('PYTORCH_BUILD_VERSION')
     if build_number > 1:
         version += '.post' + str(build_number)
-else:
-    try:
-        sha = subprocess.check_output(['git', 'rev-parse', 'HEAD'], cwd=cwd).decode('ascii').strip()
-        version += '+' + sha[:7]
-    except Exception:
-        pass
+elif sha != 'Unknown':
+    version += '+' + sha[:7]
 report("Building wheel {}-{}".format(package_name, version))
 
 
@@ -257,6 +260,7 @@ def build_deps():
         # this would claim to be a release build when it's not.)
         f.write("debug = {}\n".format(repr(DEBUG)))
         f.write("cuda = {}\n".format(repr(CUDA_VERSION)))
+        f.write("git_version = {}\n".format(repr(sha)))
 
     def check_file(f):
         if not os.path.exists(f):