[download] Refactor handleExistingFile #2265

	name: integration tests
	on: [push]

	jobs:
	integrationtests:
	name: integration-s3
	runs-on: ubuntu-latest
	steps:
	- name: Check out code into the Go module directory
	uses: actions/checkout@v6
	- name: Setup Go
	uses: actions/setup-go@v6
	with:
	go-version: '1.25'

	- name: Set up Python
	uses: actions/setup-python@v6
	with:
	python-version: '3.9'

	- name: Build go code
	run: \|
	# Get the module name from go.mod automatically
	MOD_NAME=$(go list -m)

	# Build a version that is new enough for the success test
	go build -ldflags "-X ${MOD_NAME}/cmd.Version=v0.3.0" -o sda-cli

	# Build an outdated version for the failure test (the minimal required version is 0.2.0)
	go build -ldflags "-X ${MOD_NAME}/cmd.Version=v0.1.0" -o sda-cli-v0.1.0

	- name: Setup environment
	run: bash -x .github/integration/setup/setup.sh

	- name: Run tests
	run: \|
	ls -1 .github/integration/tests/*.sh 2>/dev/null \| sort -t/ -k5 -n \| while read -r runscript; do
	echo "Executing setup script $runscript";
	bash -x "$runscript";
	done

Provide feedback