adding codecov reporting (#2372) [skip ci]

* adding codecov reporting

* update codecov-action to v5

* fix

---------

Co-authored-by: Dan Saunders <dan@axolotl.ai>

cicd/multigpu.sh

@@ -4,3 +4,22 @@ set -e
 # only run one test at a time so as not to OOM the GPU
 pytest -v  --durations=10 -n2 /workspace/axolotl/tests/e2e/multigpu/ --ignore=/workspace/axolotl/tests/e2e/multigpu/solo/
 pytest -v  --durations=10 -n1 /workspace/axolotl/tests/e2e/multigpu/solo/
+
+# Only run two tests at a time to avoid OOM on GPU (with coverage collection)
+pytest -v -n2 \
+  --ignore=/workspace/axolotl/tests/e2e/multigpu/solo/
+  /workspace/axolotl/tests/e2e/multigpu/ \
+  --cov=axolotl \
+  --cov-report=xml:multigpu-coverage.xml
+
+pytest -v  --durations=10 -n1 /workspace/axolotl/tests/e2e/multigpu/solo/ \
+  --cov=axolotl \
+  --cov-append \
+  --cov-report=xml:multigpu-coverage.xml
+
+# Upload coverage to Codecov
+if [ -f multigpu-coverage.xml ]; then
+  codecov -f multigpu-coverage.xml -F multigpu,docker-tests,pytorch-${PYTORCH_VERSION}
+else
+  echo "Coverage file not found. Coverage report may have failed."
+fi