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https://github.com/looksrare/contracts-libs

A set of Solidity libraries & contracts shared across the LooksRare ecosystem
https://github.com/looksrare/contracts-libs

looksrare solidity

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A set of Solidity libraries & contracts shared across the LooksRare ecosystem

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# @looksrare/contracts-libs

[![Tests](https://github.com/LooksRare/contracts-libs/actions/workflows/tests.yaml/badge.svg)](https://github.com/LooksRare/contracts-libs/actions/workflows/tests.yaml)
[![License: MIT](https://img.shields.io/badge/License-MIT-blue.svg)](https://opensource.org/licenses/MIT)

This repository contains a set of Solidity contracts that can be used across contracts for purposes such as verifying signatures, protecting contracts against reentrancy attacks, low-level call functions, and a library for managing the ownership of a contract.

It also contains generic contract interfaces (for EIP/ERC) that can be used.

## Installation

```shell
# Yarn
yarn add @looksrare/contracts-libs

# NPM
npm install @looksrare/contracts-libs
```

## NPM package

The NPM package contains the following:

- Solidity smart contracts (_".sol"_)
- ABIs (_".json"_)

## Current contracts

| Name | Description | Type | Latest version | Audited? |
| ------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------- | -------- | -------------- | -------- |
| OwnableTwoSteps | Contract for managing ownership of a smart contract. The transfer of ownership is done in a 2-step process. | Contract | 2.5.0 | Yes |
| SignatureCheckerCalldata | Contract for verifying the validity of a (calldata) signature for EOA (64-byte, 65-byte signatures) and EIP-1271. | Contract | 3.0.0 | Yes |
| SignatureCheckerMemory | Contract for verifying the validity of a (memory) signature for EOA (64-byte, 65-byte signatures) and EIP-1271. | Contract | 3.0.0 | Yes |
| ReentrancyGuard | Contract with a modifier to prevent reentrancy calls. | Contract | 2.4.4 | Yes |
| PackedReentrancyGuard | Contract with a modifier to prevent reentrancy calls. Adapted from ReentrancyGuard. | Contract | 2.5.1 | Yes |
| LowLevelETHTransfer | Low-level call function to transfer ETH | Contract | 2.4.4 | Yes |
| LowLevelETHReturnETHIfAny | Low-level call function to return all ETH left | Contract | 2.4.4 | Yes |
| LowLevelETHReturnETHIfAnyExceptOneWei | Low-level call function to return all ETH left except one wei | Contract | 2.4.4 | Yes |
| LowLevelWETH | Low-level call functions to transfer ETH with an option to wrap to WETH if the original ETH transfer fails within a gas limit | Contract | 2.4.4 | Yes |
| LowLevelERC20Approve | Low-level call functions for ERC20 approve functions | Contract | 2.4.4 | Yes |
| LowLevelERC20Transfer | Low-level call functions for ERC20 transfer functions | Contract | 2.4.4 | Yes |
| LowLevelERC721Transfer | Low-level call functions for ERC721 functions | Contract | 2.4.4 | Yes |
| LowLevelERC1155Transfer | Low-level call functions for ERC1155 functions | Contract | 2.4.4 | Yes |
| ProtocolFee | Contract for defining protocol fee recipient and basis points | Contract | 3.2.0 | No |
| BlastNativeYield | Contract for claiming Blast native yield | Contract | 3.5.1 | No |
| BlastPoints | Contract for configuring Blast points | Contract | 3.5.1 | No |
| BlastERC20RebasingYield | Contract for claiming Blast WETH/USDB yield | Contract | 3.5.1 | No |

## About this repo

### Structure

It is a hybrid [Hardhat](https://hardhat.org/) repo that also requires [Foundry](https://book.getfoundry.sh/index.html) to run Solidity tests powered by the [ds-test library](https://github.com/dapphub/ds-test/).

> To install Foundry, please follow the instructions [here](https://book.getfoundry.sh/getting-started/installation.html).

### Run tests

- Solidity tests are included in the `foundry` folder in the `test` folder.

### Example of Foundry/Forge commands

```shell
forge build
forge test
forge test -vv
forge tree
```

### Example of other commands

```shell
npx eslint '**/*.{js,ts}'
npx eslint '**/*.{js,ts}' --fix
npx prettier '**/*.{json,sol,md}' --check
npx prettier '**/*.{json,sol,md}' --write
npx solhint 'contracts/**/*.sol'
npx solhint 'contracts/**/*.sol' --fix
```

### Coverage

It is required to install lcov.

```shell
brew install lcov
```

To run the coverage report, the below command can be executed.

```
forge coverage --report lcov
LCOV_EXCLUDE=("test/*" "contracts/interfaces/*" "contracts/errors/*.sol")
echo $LCOV_EXCLUDE | xargs lcov --output-file lcov-filtered.info --remove lcov.info
genhtml lcov-filtered.info --output-directory out
open out/index.html
```