Hardhat (https://hardhat.org/) is a widely-used development
environment for Ethereum smart contracts. Its default project layout
generates several directories that should not be committed. This
template mirrors the .gitignore that ships in Hardhat's own
example-project (packages/example-project/.gitignore in
NomicFoundation/hardhat), limited to Hardhat-specific paths (generic
Node.js paths such as node_modules and dist are already covered by
Node.gitignore).
Rules:
- /artifacts, /cache: compiled contract output and compilation cache
- /types: TypeChain output for @nomicfoundation/hardhat-typechain (v3)
- /typechain-types: TypeChain output for @typechain/hardhat (v2)
- /ignition/deployments: Hardhat Ignition deployment output
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