84 lines
3.6 KiB
Markdown
84 lines
3.6 KiB
Markdown
# About Lighthouse
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## Goals
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The purpose of this project is to work alongside the Ethereum community to
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implement a secure, trustworthy, open-source Ethereum Serenity client in Rust.
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* **Security**: Lighthouse's main goal is to implement everything with a
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security-first mindset. The goal is to ensure that all components of lighthouse
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are thoroughly tested, checked and secure.
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* **Trust** : As Ethereum Serenity is a Proof-of-Stake system, which
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involves the interaction of the Ethereum protocol and user funds. Thus, a goal
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of Lighthouse is to provide a client that is trustworthy.
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All code can be tested and verified the goal of Lighthouse is to provide code
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that is trusted.
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* **Transparency**: Lighthouse aims at being as transparent as possible. This
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goal is for Lighthouse to embrace the open-source community and allow for all
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to understand the decisions, direction and changes in all aspects.
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* **Error Resilience**: As Lighthouse embraces the "never `panic`" mindset, the
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goal is to be resilient to errors that may occur. Providing a client that has
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tolerance against errors provides further properties for a secure, trustworthy
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client that Lighthouse aims to provide.
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In addition to implementing a new client, the project seeks to maintain and
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improve the Ethereum protocol wherever possible.
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## Ideology
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### Never Panic
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Lighthouse will be the gateway interacting with the Proof-of-Stake system
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employed by Ethereum. This requires the validation and proposal of blocks
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and extremely timely responses. As part of this, Lighthouse aims to ensure
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the most uptime as possible, meaning minimising the amount of
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exceptions and gracefully handling any issues.
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Rust's `panic` provides the ability to throw an exception and exit, this
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will terminate the running processes. Thus, Lighthouse aims to use `panic`
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as little as possible to minimise the possible termination cases.
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### Security First Mindset
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Lighthouse aims to provide a safe, secure Serenity client for the Ethereum
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ecosystem. At each step of development, the aim is to have a security-first
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mindset and always ensure you are following the safe, secure mindset. When
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contributing to any part of the Lighthouse client, through any development,
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always ensure you understand each aspect thoroughly and cover all potential
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security considerations of your code.
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### Functions aren't completed until they are tested
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As part of the Security First mindset, we want to aim to cover as many distinct
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cases. A function being developed is not considered "completed" until tests
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exist for that function. The tests not only help show the correctness of the
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function, but also provide a way for new developers to understand how the
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function is to be called and how it works.
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## Engineering Ethos
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Lighthouse aims to produce many small easily-tested components, each separated
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into individual crates wherever possible.
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Generally, tests can be kept in the same file, as is typical in Rust.
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Integration tests should be placed in the `tests` directory in the crate's
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root. Particularity large (line-count) tests should be placed into a separate
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file.
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A function is not considered complete until a test exists for it. We produce
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tests to protect against regression (accidentally breaking things) and to
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provide examples that help readers of the code base understand how functions
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should (or should not) be used.
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Each pull request is to be reviewed by at least one "core developer" (i.e.,
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someone with write-access to the repository). This helps to ensure bugs are
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detected, consistency is maintained, and responsibility of errors is dispersed.
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Discussion must be respectful and intellectual. Have fun and make jokes, but
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always respect the limits of other people.
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