Add pre-commit check for duplicate CUDA files

For reasons of CUDA being CUDA, we currently cannot reliable compile the
project in debug mode if there are multiple CUDA files with the same
base name. This causes a race condition during compilation. In order to
relieve this issue, this commit adds a pre-commit check that verifies
that all CUDA file base names are unique.

Author: stephenswat

.github/check_duplicate_cu_files.sh

@@ -0,0 +1,4 @@
+#!/bin/bash
+
+! [[ $(find device tests -name "*\.cu" | xargs -I {} basename {} | sort | uniq -d) ]]
+exit $?

.pre-commit-config.yaml

@@ -29,3 +29,11 @@ repos:
         name: Check taboo code patterns
         language: system
         entry: .github/check_taboos.sh
+
+  - repo: local
+    hooks:
+      - id: check_duplicate_cu_files
+        name: Check duplicate .cu file names
+        language: system
+        entry: .github/check_duplicate_cu_files.sh
+        pass_filenames: false