Solidity Unfolder

Unfolds all local imports in a solidity file to generate a flat solidity file.

Introduction

Manually combining all imports in a solidity file when verifying your contract source on Etherscan is time-consuming and cumbersome. This tool automatically traverses the dependency graph of imports and combines them in the correct order, which is ready to be pasted into the contract verifier.

NOTE: This tool won't work with imports that are aliased (i.e. import "./foo.sol" as bar; )

Installation

There are no requirements for this tool.

pip install solidity-unfolder

Usage

usage: solu [-h] [-o *.sol] *.sol *.*.*

Unfolds all local imports in a solidity file to generate a flat solidity file.
Put the output file into out/ folders.

positional arguments:
  *.sol                 target filename with imports
  *.*.*                 solidity compiler version e.g. 0.4.24

optional arguments:
  -h, --help            show this help message and exit
  -o *.sol, --output *.sol
                        output filename (default: flat.sol)

Example

solu contract-with-imports.sol 0.4.24

It will output flat.sol (default output filename) with solidity version 0.4.24 in out/ folder.

solu contract-with-imports.sol 0.4.20 --output contract-flat.sol

It will output contract-flat.sol with solidity version 0.4.20 in out/ folder.

Contact

Feel free to contact me if there's any problem. And welcome to open issues and send pull requests.

Inspired by BlockCatIO.

License

MIT License (2018), Jun-You Liu