https://github.com/ZeframLou/token-migrator

A simple contract for migrating from an old ERC20 token to a new ERC20 token.
https://github.com/ZeframLou/token-migrator

Last synced: about 2 months ago
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A simple contract for migrating from an old ERC20 token to a new ERC20 token.

• Host: GitHub
• URL: https://github.com/ZeframLou/token-migrator
• Owner: ZeframLou
• License: agpl-3.0
• Created: 2022-01-17T09:33:58.000Z (almost 3 years ago)
• Default Branch: main
• Last Pushed: 2022-01-23T22:00:01.000Z (almost 3 years ago)
• Last Synced: 2024-08-04T01:02:22.164Z (5 months ago)
• Language: Solidity
• Size: 30.3 KB
• Stars: 35
• Watchers: 2
• Forks: 7
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

• awesome-foundry - TokenMigrator - A simple contract for migrating from an old ERC20 token to a new ERC20 token. (Templates & Libraries)

README

        
# TokenMigrator

A simple contract for migrating from an old ERC20 token to a new ERC20 token.

Also supports letting migrators get back their old tokens after a certain time (e.g. 99 years) for shady legal reasons.

The new ERC20 token MUST implement the [IERC20Migrateable](src/interfaces/IERC20Migrateable.sol) interface, specifically a migrate function following the interface `function migrate(uint256 oldTokenAmount, address recipient) external returns (uint256 newTokenAmount)`. When called, the new ERC20 token must mint some amount of new tokens to `recipient` based on `oldTokenAmount`, and return the amount of new tokens minted as `newTokenAmount`. It does not need to make checks about whether old tokens have been locked. It MUST check that the caller is indeed the `TokenMigrator` contract.

## Installation

To install with [DappTools](https://github.com/dapphub/dapptools):

```

dapp install zeframlou/token-migrator

```

To install with [Foundry](https://github.com/gakonst/foundry):

```

forge install zeframlou/token-migrator

```

## Local development

This project uses [Foundry](https://github.com/gakonst/foundry) as the development framework.

### Dependencies

```

make update

```

### Compilation

```

make build

```

### Testing

```

make test

```