MAINT: warn in egg_info command if using setuptools.sdist.

Warn in numpy/distutils/command/egg_info.py if using setuptools.sdist.

See gh-7127 for details.

1 files changed, 8 insertions, 0 deletions

diff --git a/numpy/distutils/command/egg_info.py b/numpy/distutils/command/egg_info.py
index b7104de5b..972a27df3 100644
--- a/numpy/distutils/command/egg_info.py
+++ b/numpy/distutils/command/egg_info.py
@@ -1,9 +1,17 @@
 from __future__ import division, absolute_import, print_function
 
+import sys
+
 from setuptools.command.egg_info import egg_info as _egg_info
 
 class egg_info(_egg_info):
     def run(self):
+        if 'sdist' in sys.argv:
+            import warnings
+            warnings.warn("`build_src` is being run, this may lead to missing "
+                          "files in your sdist!  See numpy issue gh-7127 for "
+                          "details", UserWarning)
+
         # We need to ensure that build_src has been executed in order to give
         # setuptools' egg_info command real filenames instead of functions which
         # generate files.