ericxstone / sol-flattener

Utility to Flatten solidity contract

Sol-Flattener

This repository consists of a utility which helps to flatten Solidity file for verification.

Git Repo: https://github.com/EricxStone/sol-flattener

NPM: https://www.npmjs.com/package/@ericxstone/sol-flattener

Usage

There are two ways of using this utilities. You can either import this package to your code or use it as a cli.

To get started, you can follow below steps:

1. Install the package

Using yarn

yarn add -D @ericxstone/sol-flattener

Using npm

npm install @ericxstone/sol-flattener --save-dev

2. Use the package as cli

yarn flatten-sol ./contracts/yourContract.sol ./node_modules ./output/yourContract_flatten.sol

3. Import the package in your code

import {flatternFile} from "@ericxstone/sol-flattener"

...

const resultSol: string = flatternFile(path.join(__dirname, "../contracts/yourContract.sol"), path.join(__dirname, "../node_modules"));

The CLI

Use the following command on the cli

yarn flatten-sol SOLIDITY_CONTRACT_FILE_PATH NODE_MODULES_FOLDER OUTPUT_FILE_NAME

• SOLIDITY_CONTRACT_FILE_PATH: The file path of the solidity contract, should work with relative path and full path.
• NODE_MODULES_FOLDER: Path to the node_module folder where you have installed the contract dependencies (e.g. openzeppelin).
• OUTPUT_FILE_NAME: The path and file name of the flattened solidity file.

Using Import

When you import this module to your code, you can use the function as follow:

flatternFile(contractFilePath: string, libDirPath: string): string

The function takes the contract file path and path to the node_modules as argument. The flattened solidity file will be output in string format.

Development

You may also want to contribute to this library. Follow below steps to setup development environment.

1. Clone this repository

git clone https://github.com/EricxStone/sol-flattener

2. Install dependencies

yarn

3. Run test

yarn test

4. Build Cli

yarn build

License

MIT