test: support installing git-lfs in different environments and only i…

…f necessary

Signed-off-by: Reuben Miller <reuben.d.miller@gmail.com>

tests/RobotFramework/bin/setup.sh

@@ -14,10 +14,24 @@ pushd "$SCRIPT_DIR/.." >/dev/null || exit 1
 export PYTHON_KEYRING_BACKEND=keyring.backends.null.Keyring
 
 # Use git lfs for test artefacts
-curl -s https://packagecloud.io/install/repositories/github/git-lfs/script.deb.sh | sudo bash
-sudo apt install -y git-lfs
-git lfs install
-git lfs pull
+if ! git lfs env >/dev/null 2>&1; then
+    # install git-lfs dependency, try proceeding anyway if a package manager is not found
+    if command -V apt-get >/dev/null 2>&1; then
+        curl -s https://packagecloud.io/install/repositories/github/git-lfs/script.deb.sh | sudo bash
+        sudo apt-get install -y --no-install-recommends git-lfs
+    elif command -V yum 2>/dev/null 2>&1; then
+        curl -s https://packagecloud.io/install/repositories/github/git-lfs/script.rpm.sh | sudo bash
+        sudo yum install -y git-lfs
+    elif command -V dnf 2>/dev/null 2>&1; then
+        curl -s https://packagecloud.io/install/repositories/github/git-lfs/script.rpm.sh | sudo bash
+        sudo dnf install -y git-lfs
+    elif  command -V brew >/dev/null 2>&1; then
+        brew install git-lfs
+    fi
+
+    git lfs install
+    git lfs pull
+fi
 
 #
 # Setup python virtual environment and install dependencies