Merge pull request #3473 from easybuilders/ocaisa-patch-1

enhance cuDNN easyblock to verify that EULA is accepted before installing it

easybuild/easyblocks/c/cudnn.py

@@ -68,3 +68,13 @@ def __init__(self, *args, **kwargs):
         self.cfg['keepsymlinks'] = True
         self.cfg.template_values['cudnnarch'] = cudnnarch
         self.cfg.generate_template_values()
+
+    def fetch_step(self, *args, **kwargs):
+        """Check for EULA acceptance prior to getting sources."""
+        # EULA for cuDNN must be accepted via --accept-eula-for EasyBuild configuration option,
+        # or via 'accept_eula = True' in easyconfig file
+        self.check_accepted_eula(
+            name='cuDNN',
+            more_info='https://docs.nvidia.com/deeplearning/cudnn/latest/reference/eula.html'
+        )
+        return super(EB_cuDNN, self).fetch_step(*args, **kwargs)