Ethereum Development Environment Manager 🚀

This bash script helps manage essential processes for Ethereum smart contract development using Remix IDE and Hardhat. It allows you to easily start and stop remixd, a local Hardhat node, and automatically open Remix IDE in Firefox.

---

📜 Description

The script automates the setup of a local development environment by:

• Starting processes:

  • remixd: Connects your local filesystem to the Remix IDE, allowing you to work on your smart contracts locally.
  • firefox https://remix.ethereum.org: Opens the Remix IDE in the Firefox browser.
  • npx hardhat node: Starts a local Hardhat blockchain node for testing and deployment. All processes are started in the background (nohup), and their standard output and errors are redirected to separate log files (e.g., remixd.log, firefox.log, npx.log). Process IDs (PIDs) are stored in process_ids.txt.

• Stopping processes:

  • Reads PIDs from process_ids.txt.
  • Attempts to gracefully terminate each process using SIGTERM.
  • Waits for a short period and checks if the process has terminated.
  • If a process is still running, it sends a SIGKILL signal to force its termination.
  • Cleans up by deleting the process_ids.txt file and all .log files.

---

🛠️ Prerequisites

Before running this script, ensure you have the following installed:

• Bash: The script is written in Bash and requires a Bash-compatible shell.
• Node.js & npm/npx: Required for npx hardhat node.
• Hardhat: Install globally or have it as a project dependency (npm install --save-dev hardhat or npm install -g hardhat).
• remixd: Install globally (npm install -g @remix-project/remixd).
• Firefox: The script is configured to open Remix IDE in Firefox. You can change this by modifying the PROCESSES array in the script.

---

🚀 Usage

1. Save the script: Save the code as a .sh file (e.g., start_remixd_with_hardhat.sh).

2. Make it executable:

   chmod +x start_remixd_with_hardhat.sh

3. Start the processes:

   ./start_remixd_with_hardhat.sh start

   This will start remixd, open Remix IDE in Firefox, and launch a Hardhat node. Log files for each process will be created in the same directory, and their PIDs will be stored in process_ids.txt.

4. Stop the processes:

   ./start_remixd_with_hardhat.sh stop

   This will attempt to stop all managed processes and clean up the PID file and log files.

---

⚙️ Configuration

Processes

The PROCESSES array at the beginning of the script defines the commands to be executed:

PROCESSES=(
    "remixd -s ./ --remix-ide [https://remix.ethereum.org](https://remix.ethereum.org)"
    "firefox [https://remix.ethereum.org](https://remix.ethereum.org)"
    "npx hardhat node"
)