PYTHON-5467 Fix codecov upload on Evergreen (#2702)

.evergreen/generated_configs/functions.yml

@@ -268,6 +268,8 @@ functions:
           - github_pr_number
           - github_pr_head_branch
           - github_author
+          - is_patch
+          - branch_name
       type: test
 
   # Upload coverage

.evergreen/scripts/generate_config.py

@@ -1087,6 +1087,8 @@ def create_upload_coverage_codecov_func():
         "github_pr_number",
         "github_pr_head_branch",
         "github_author",
+        "is_patch",
+        "branch_name",
     ]
     args = [
         ".evergreen/scripts/upload-codecov.sh",

.evergreen/scripts/upload-codecov.sh

@@ -9,34 +9,49 @@ ROOT=$(dirname "$(dirname $HERE)")
 pushd $ROOT > /dev/null
 export FNAME=coverage.xml
 
-if [ -z "${github_pr_number:-}" ]; then
-  echo "This is not a PR, not running codecov"
+if [ -n "${is_patch:-}" ]; then
+  echo "This is a patch build, not running codecov"
   exit 0
 fi
 
 if [ ! -f ".coverage" ]; then
-  echo "There are no XML test results, not running codecov"
+  echo "There are no coverage results, not running codecov"
   exit 0
 fi
 
 echo "Uploading..."
-printf 'pr: %s\n' "$github_pr_number"
 printf 'sha: %s\n' "$github_commit"
-printf 'branch: %s:%s\n' "$github_author" "$github_pr_head_branch"
 printf 'flag: %s-%s\n' "$build_variant" "$task_name"
 printf 'file: %s\n' "$FNAME"
 uv tool run --with "coverage[toml]" coverage xml
-uv tool run --from codecov-cli codecovcli upload-process \
-  --report-type coverage \
-  --disable-search \
-  --fail-on-error \
-  --git-service github \
-  --token ${CODECOV_TOKEN} \
-  --pr ${github_pr_number} \
-  --sha ${github_commit} \
-  --branch "${github_author}:${github_pr_head_branch}" \
-  --flag "${build_variant}-${task_name}" \
-  --file $FNAME
+
+codecov_args=(
+  upload-process
+  --report-type coverage
+  --disable-search
+  --fail-on-error
+  --git-service github
+  --token "${CODECOV_TOKEN}"
+  --sha "${github_commit}"
+  --flag "${build_variant}-${task_name}"
+  --file "${FNAME}"
+)
+
+if [ -n "${github_pr_number:-}" ]; then
+  printf 'branch: %s:%s\n' "$github_author" "$github_pr_head_branch"
+  printf 'pr: %s\n' "$github_pr_number"
+
+  uv tool run --from codecov-cli codecovcli \
+    "${codecov_args[@]}" \
+    --pr "${github_pr_number}" \
+    --branch "${github_author}:${github_pr_head_branch}"
+else
+  printf 'branch: %s\n' "$branch_name"
+
+  uv tool run --from codecov-cli codecovcli \
+    "${codecov_args[@]}" \
+    --branch "${branch_name}"
+fi
 echo "Uploading...done."
 
 popd > /dev/null