<p align="center">
  <a href="https://solana.com">
    <img alt="Solana" src="https://i.imgur.com/OMnvVEz.png" width="250" />
  </a>
</p>

[![Solana crate](https://img.shields.io/crates/v/solana-core.svg)](https://crates.io/crates/solana-core)
[![Solana documentation](https://docs.rs/solana-core/badge.svg)](https://docs.rs/solana-core)
[![Build status](https://badge.buildkite.com/8cc350de251d61483db98bdfc895b9ea0ac8ffa4a32ee850ed.svg?branch=master)](https://buildkite.com/solana-labs/solana/builds?branch=master)
[![codecov](https://codecov.io/gh/solana-labs/solana/branch/master/graph/badge.svg)](https://codecov.io/gh/solana-labs/solana)

# Building

## **1. Install rustc, cargo and rustfmt.**

```bash
$ curl https://sh.rustup.rs -sSf | sh
$ source $HOME/.cargo/env
$ rustup component add rustfmt
```

Please sure you are always using the latest stable rust version by running:

```bash
$ rustup update
```

On Linux systems you may need to install libssl-dev, pkg-config, zlib1g-dev, etc.  On Ubuntu:

```bash
$ sudo apt-get update
$ sudo apt-get install libssl-dev libudev-dev pkg-config zlib1g-dev llvm clang make
```

## **2. Download the source code.**

```bash
$ git clone https://github.com/solana-labs/solana.git
$ cd solana
```

## **3. Build.**

```bash
$ cargo build
```

## **4. Run a minimal local cluster.**
```bash
$ ./run.sh
```

# Testing

**Run the test suite:**

```bash
$ cargo test
```

### Starting a local testnet
Start your own testnet locally, instructions are in the [online docs](https://docs.solana.com/cluster/bench-tps).

### Accessing the remote development cluster
* `devnet` - stable public cluster for development accessible via
devnet.solana.com. Runs 24/7. Learn more about the [public clusters](https://docs.solana.com/clusters)

# Benchmarking

First install the nightly build of rustc. `cargo bench` requires use of the
unstable features only available in the nightly build.

```bash
$ rustup install nightly
```

Run the benchmarks:

```bash
$ cargo +nightly bench
```

# Release Process

The release process for this project is described [here](RELEASE.md).

# Code coverage

To generate code coverage statistics:

```bash
$ scripts/coverage.sh
$ open target/cov/lcov-local/index.html
```

Why coverage? While most see coverage as a code quality metric, we see it primarily as a developer
productivity metric. When a developer makes a change to the codebase, presumably it's a *solution* to
some problem.  Our unit-test suite is how we encode the set of *problems* the codebase solves. Running
the test suite should indicate that your change didn't *infringe* on anyone else's solutions. Adding a
test *protects* your solution from future changes. Say you don't understand why a line of code exists,
try deleting it and running the unit-tests. The nearest test failure should tell you what problem
was solved by that code. If no test fails, go ahead and submit a Pull Request that asks, "what
problem is solved by this code?" On the other hand, if a test does fail and you can think of a
better way to solve the same problem, a Pull Request with your solution would most certainly be
welcome! Likewise, if rewriting a test can better communicate what code it's protecting, please
send us that patch!

# Disclaimer

All claims, content, designs, algorithms, estimates, roadmaps, specifications, and performance measurements described in this project are done with the author's best effort.  It is up to the reader to check and validate their accuracy and truthfulness.  Furthermore nothing in this project constitutes a solicitation for investment.

Any content produced by Solana, or developer resources that Solana provides, are for educational and inspiration purposes only.  Solana does not encourage, induce or sanction the deployment of any such applications in violation of applicable laws or regulations.
