feat: demo download convenience script

.gitignore

@@ -176,3 +176,6 @@ artifact_database.pkl
 imgui.ini
 
 src/rai_bench/rai_bench/experiments
+
+# Demo assets
+demo_assets/

scripts/download_demo.sh

@@ -0,0 +1,102 @@
+#!/usr/bin/env bash
+
+set -e
+
+DEMOS_DIR="demo_assets"
+mkdir -p "$DEMOS_DIR"
+
+if [ $# -ne 1 ]; then
+    echo "Usage: $0 <demo_name>"
+    echo "Available demos: manipulation, rosbot, agriculture"
+    exit 1
+fi
+
+DEMO_NAME="$1"
+
+if [ -z "$ROS_DISTRO" ]; then
+    echo "ROS_DISTRO environment variable is not set."
+    exit 1
+fi
+
+MANIPULATION_HUMBLE="https://robotec-ml-roscon2024-demos.s3.eu-central-1.amazonaws.com/ROSCON_Release/RAIManipulationDemo_1.0.0_jammyhumble.zip"
+MANIPULATION_JAZZY="https://robotec-ml-roscon2024-demos.s3.eu-central-1.amazonaws.com/ROSCON_Release/RAIManipulationDemo_1.0.0_noblejazzy.zip"
+ROSBOT_HUMBLE="https://robotec-ml-roscon2024-demos.s3.eu-central-1.amazonaws.com/ROSCON_Release/RAIROSBotDemo_1.0.0_jammyhumble.zip"
+ROSBOT_JAZZY="https://robotec-ml-roscon2024-demos.s3.eu-central-1.amazonaws.com/ROSCON_Release/RAIROSBotDemo_1.0.0_noblejazzy.zip"
+AGRICULTURE_HUMBLE="https://robotec-ml-roscon2024-demos.s3.eu-central-1.amazonaws.com/ROSCON_Release/RAIAgricultureDemo_1.0.0_jammyhumble.zip"
+AGRICULTURE_JAZZY="https://robotec-ml-roscon2024-demos.s3.eu-central-1.amazonaws.com/ROSCON_Release/RAIAgricultureDemo_1.0.0_noblejazzy.zip"
+
+case "$DEMO_NAME" in
+    manipulation)
+        case "$ROS_DISTRO" in
+            humble)
+                URL="$MANIPULATION_HUMBLE"
+                ;;
+            jazzy)
+                URL="$MANIPULATION_JAZZY"
+                ;;
+            *)
+                echo "Unsupported ROS_DISTRO: $ROS_DISTRO"
+                exit 1
+                ;;
+        esac
+        ;;
+    rosbot)
+        case "$ROS_DISTRO" in
+            humble)
+                URL="$ROSBOT_HUMBLE"
+                ;;
+            jazzy)
+                URL="$ROSBOT_JAZZY"
+                ;;
+            *)
+                echo "Unsupported ROS_DISTRO: $ROS_DISTRO"
+                exit 1
+                ;;
+        esac
+        ;;
+    agriculture)
+        case "$ROS_DISTRO" in
+            humble)
+                URL="$AGRICULTURE_HUMBLE"
+                ;;
+            jazzy)
+                URL="$AGRICULTURE_JAZZY"
+                ;;
+            *)
+                echo "Unsupported ROS_DISTRO: $ROS_DISTRO"
+                exit 1
+                ;;
+        esac
+        ;;
+    *)
+        echo "Unknown demo name: $DEMO_NAME"
+        echo "Available demos: manipulation, rosbot, agriculture"
+        exit 1
+        ;;
+esac
+
+FILENAME="${URL##*/}"
+
+echo "Downloading $DEMO_NAME demo for ROS_DISTRO=$ROS_DISTRO..."
+echo "From: $URL"
+echo "To: $DEMOS_DIR/$FILENAME"
+
+wget -q --show-progress -O "${DEMOS_DIR}/${FILENAME}" "$URL"
+
+echo "Download complete: ${DEMOS_DIR}/${FILENAME}"
+
+# Unzip to a subdirectory named after the demo
+TARGET_DIR="${DEMOS_DIR}/${DEMO_NAME}"
+if [ -d "$TARGET_DIR" ]; then
+    echo "Removing existing directory: $TARGET_DIR"
+    rm -rf "$TARGET_DIR"
+fi
+
+echo "Unzipping to $TARGET_DIR ..."
+unzip -q "${DEMOS_DIR}/${FILENAME}" -d "$TARGET_DIR"
+
+echo "Extraction complete."
+
+rm -f "${DEMOS_DIR}/${FILENAME}"
+
+echo "Done. Demo is available in $TARGET_DIR"