Dapp tools by DappHub

Hello!

This repository contains the source code for several Ethereum tools hand-crafted and maintained by DappHub, along with dependency management, courtesy of Nix.

Contents:

• Dapp - all you need Ethereum development tool. Build, test, debug & deploy solidity contracts.
• Seth - Ethereum CLI. Query contracts, send transactions, follow logs, slice & dice data.
• Hevm - Ethereum evaluator. Fully complient Haskell EVM implementation.
• Ethsign - sign Ethereum transactions from a local keystore.

Installation

Install Nix if you haven't already:

# user must be in sudoers
curl -L https://nixos.org/nix/install | sh

# Run this or login again to use Nix
. "$HOME/.nix-profile/etc/profile.d/nix.sh"

Then install dapptools:

curl https://dapp.tools/install | sh

Upgrading geth-statediff

1. Set version at src/go-ethereum-statediff/default.nix line 5

2. Get sha256 hash using

   nix-prefetch-url https://github.com/vulcanize/go-ethereum/releases/download/${version}/geth-linux-amd64
   

   Replace ${version} with correct geth-statediff version. For example:

   > nix-prefetch-url https://github.com/vulcanize/go-ethereum/releases/download/v1.10.3-statediff-0.0.22/geth-linux-amd64
   [39.4 MiB DL]
   path is '/nix/store/9da7jqjw52lhl9cr6an8m4c478rg6yn6-geth-linux-amd64'
   1jnc96ly0qi40j8dlgip520n83gfrbv30bqdk9h5fslxzcwhf0yj
   

   1jnc96ly0qi40j8dlgip520n83gfrbv30bqdk9h5fslxzcwhf0yj is sha256 hash. Set it at src/go-ethereum-statediff/default.nix line 8

3. Bump versions at

   • src/dapp/libexec/dapp/dapp---version
   • src/dapp/default.nix line 7

Installing custom solc versions

You can specify a custom solc version to run within dapp with dapp --use solc:x.y.z test, but you can also install any supported solc "standalone" (i.e. add it to your $PATH) with:

nix-env -iA solc-versions.solc_x_y_z \
  -if https://github.com/dapphub/dapptools/tarball/master

(NOTE: if you haven't installed dapptools with the one-line installer, you'll have to manually pass substituters in the command above, or configure Cachix manually, to avoid compilation)

For a list of the supported solc versions, check ./nix/solc-versions.nix.

Versions of solc that haven't yet landed in nixpkgs can be found under the unreleased key: solc-versions.unreleased.solc_x_y_z.

(NOTE: not all versions are supported on macOS platforms.)

Contributing

Instructions for adding new versions of solc can be found at nix/solc-updates.md

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