Added run.sh for cli run for poseidon2 example

examples/rust/poseidon2/run.sh

@@ -0,0 +1,59 @@
+#!/bin/bash
+
+# Exit immediately if a command exits with a non-zero status
+set -e
+
+# Function to display usage information
+show_help() {
+  echo "Usage: $0 [-d DEVICE_TYPE] [-b BACKEND_INSTALL_DIR]"
+  echo
+  echo "Options:"
+  echo "  -d DEVICE_TYPE            Specify the device type (default: CPU)"
+  echo "  -b BACKEND_INSTALL_DIR    Specify the backend installation directory (default: empty)"
+  echo "  -h                        Show this help message"
+  exit 0
+}
+
+# Parse command line options
+while getopts ":d:b:h" opt; do
+  case ${opt} in
+    d )
+      DEVICE_TYPE=$OPTARG
+      ;;
+    b )
+      ICICLE_BACKEND_INSTALL_DIR="$(realpath ${OPTARG})"
+      ;;
+    h )
+      show_help
+      ;;
+    \? )
+      echo "Invalid option: -$OPTARG" 1>&2
+      show_help
+      ;;
+    : )
+      echo "Invalid option: -$OPTARG requires an argument" 1>&2
+      show_help
+      ;;
+  esac
+done
+
+# Set default values if not provided
+: "${DEVICE_TYPE:=CPU}"
+: "${ICICLE_BACKEND_INSTALL_DIR:=}"
+
+DEVICE_TYPE_LOWERCASE=$(echo "$DEVICE_TYPE" | tr '[:upper:]' '[:lower:]')
+
+ICILE_DIR=$(realpath "../../../icicle/")
+ICICLE_BACKEND_SOURCE_DIR="${ICILE_DIR}/backend/${DEVICE_TYPE_LOWERCASE}"
+
+# Build Icicle and the example app that links to it
+if [ "$DEVICE_TYPE" != "CPU" ] && [ ! -d "${ICICLE_BACKEND_INSTALL_DIR}" ] && [ -d "${ICICLE_BACKEND_SOURCE_DIR}" ]; then
+  echo "Building icicle and ${DEVICE_TYPE} backend"
+  cargo build --release --features="${DEVICE_TYPE_LOWERCASE}"
+  export ICICLE_BACKEND_INSTALL_DIR=$(realpath "../target/release/deps/icicle/lib/backend")
+  cargo run --release --features="${DEVICE_TYPE_LOWERCASE}" -- --device-type "${DEVICE_TYPE}"
+else
+  echo "Building icicle without backend, ICICLE_BACKEND_INSTALL_DIR=${ICICLE_BACKEND_INSTALL_DIR}"
+  export ICICLE_BACKEND_INSTALL_DIR="${ICICLE_BACKEND_INSTALL_DIR}"
+  cargo run --release -- --device-type "${DEVICE_TYPE}"
+fi