Added preinstall script

package.json

@@ -53,6 +53,7 @@
     "hardhat/**/@ethereumjs/tx": "3.5.0"
   },
   "scripts": {
+    "preinstall": "bash preinstall.sh",
     "postinstall": "patch-package",
     "prepare": "yarn prepare:husky",
     "prepare:husky": "husky install",

preinstall.sh

@@ -0,0 +1,66 @@
+#!/bin/bash
+
+echo "Setting up the development environment..."
+
+# Function to install a package if not already installed
+install_package_linux() {
+  PACKAGE=$1
+  if ! command -v $PACKAGE &> /dev/null; then
+    echo "Installing $PACKAGE on Linux..."
+    sudo apt-get update -y
+    sudo apt-get install -y $PACKAGE
+  else
+    echo "$PACKAGE is already installed."
+  fi
+}
+
+install_package_mac() {
+  PACKAGE=$1
+  if ! command -v $PACKAGE &> /dev/null; then
+    echo "Installing $PACKAGE on macOS..."
+    brew install $PACKAGE
+  else
+    echo "$PACKAGE is already installed."
+  fi
+}
+
+# Detect the operating system
+OS=$(uname -s)
+
+if [[ "$OS" == "Linux" ]]; then
+  echo "Detected Linux. Using apt package manager."
+  install_package_linux jq
+  install_package_linux bc
+elif [[ "$OS" == "Darwin" ]]; then
+  echo "Detected macOS. Using Homebrew package manager."
+
+  # Check if Homebrew is installed
+  if ! command -v brew &> /dev/null; then
+    echo "Homebrew is not installed. Installing Homebrew..."
+    # Download script first to allow inspection
+    BREW_SCRIPT=$(mktemp)
+    if ! curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh -o "$BREW_SCRIPT"; then
+      echo "Failed to download Homebrew install script"
+      rm -f "$BREW_SCRIPT"
+      exit 1
+    fi
+    # Execute the downloaded script
+    if ! /bin/bash "$BREW_SCRIPT"; then
+      echo "Failed to install Homebrew"
+      rm -f "$BREW_SCRIPT"
+      exit 1
+    fi
+    rm -f "$BREW_SCRIPT"
+    # Add Homebrew to PATH for immediate use
+    eval "$("$(brew --prefix)/bin/brew" shellenv)"
+  fi
+
+  install_package_mac jq
+  install_package_mac bc
+else
+  echo "Unsupported operating system: $OS"
+  echo "Please install jq and bc manually."
+  exit 1
+fi
+
+echo "All necessary packages are installed."