193 lines
6.4 KiB
Markdown
193 lines
6.4 KiB
Markdown
# Building Codex
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## Table of Contents
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- [Install developer tools](#prerequisites)
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- [Linux](#linux)
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- [macOS](#macos)
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- [Windows + MSYS2](#windows--msys2)
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- [Other](#other)
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- [Clone and prepare the Git repository](#repository)
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- [Build the executable](#executable)
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- [Run the example](#example-usage)
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**Optional**
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- [Run the tests](#tests)
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## Prerequisites
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To build nim-codex, developer tools need to be installed and accessible in the OS.
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Instructions below correspond roughly to environmental setups in nim-codex's [CI workflow](https://github.com/codex-storage/nim-codex/blob/main/.github/workflows/ci.yml) and are known to work.
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Other approaches may be viable. On macOS, some users may prefer [MacPorts](https://www.macports.org/) to [Homebrew](https://brew.sh/). On Windows, rather than use MSYS2, some users may prefer to install developer tools with [winget](https://docs.microsoft.com/en-us/windows/package-manager/winget/), [Scoop](https://scoop.sh/), or [Chocolatey](https://chocolatey.org/), or download installers for e.g. Make and CMake while otherwise relying on official Windows developer tools. Community contributions to these docs and our build system are welcome!
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### Rust
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The current implementation of Codex's zero-knowledge proving circuit requires the installation of rust v1.76.0 or greater. Be sure to install it for your OS and add it to your terminal's path such that the command `cargo --version` gives a compatible version.
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### Linux
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*Package manager commands may require `sudo` depending on OS setup.*
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On a bare bones installation of Debian (or a distribution derived from Debian, such as Ubuntu), run
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```shell
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apt-get update && apt-get install build-essential cmake curl git rustc cargo
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```
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Non-Debian distributions have different package managers: `apk`, `dnf`, `pacman`, `rpm`, `yum`, etc.
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For example, on a bare bones installation of Fedora, run
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```shell
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dnf install @development-tools cmake gcc-c++ rust cargo
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```
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In case your distribution does not provide required Rust version, we may install it using [rustup](https://www.rust-lang.org/tools/install)
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```shell
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curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs/ | sh -s -- --default-toolchain=1.76.0 -y
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. "$HOME/.cargo/env"
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```
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### macOS
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Install the [Xcode Command Line Tools](https://mac.install.guide/commandlinetools/index.html) by opening a terminal and running
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```shell
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xcode-select --install
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```
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Install [Homebrew (`brew`)](https://brew.sh/) and in a new terminal run
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```shell
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brew install bash cmake rust
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```
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Check that `PATH` is setup correctly
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```shell
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which bash cmake
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# /usr/local/bin/bash
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# /usr/local/bin/cmake
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```
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### Windows + MSYS2
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*Instructions below assume the OS is 64-bit Windows and that the hardware or VM is [x86-64](https://en.wikipedia.org/wiki/X86-64) compatible.*
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Download and run the installer from [msys2.org](https://www.msys2.org/).
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Launch an MSYS2 [environment](https://www.msys2.org/docs/environments/). UCRT64 is generally recommended: from the Windows *Start menu* select `MSYS2 MinGW UCRT x64`.
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Assuming a UCRT64 environment, in Bash run
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```shell
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pacman -Suy
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pacman -S base-devel git unzip mingw-w64-ucrt-x86_64-toolchain mingw-w64-ucrt-x86_64-cmake mingw-w64-ucrt-x86_64-rust
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```
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<!-- #### Headless Windows container -->
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<!-- add instructions re: getting setup with MSYS2 in a Windows container -->
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<!-- https://github.com/StefanScherer/windows-docker-machine -->
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#### Optional: VSCode Terminal integration
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You can link the MSYS2-UCRT64 terminal into VSCode by modifying the configuration file as shown below.
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File: `C:/Users/<username>/AppData/Roaming/Code/User/settings.json`
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```json
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{
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...
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"terminal.integrated.profiles.windows": {
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...
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"MSYS2-UCRT64": {
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"path": "C:\\msys64\\usr\\bin\\bash.exe",
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"args": [
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"--login",
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"-i"
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],
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"env": {
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"MSYSTEM": "UCRT64",
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"CHERE_INVOKING": "1",
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"MSYS2_PATH_TYPE": "inherit"
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}
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}
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}
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}
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```
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### Other
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It is possible that nim-codex can be built and run on other platforms supported by the [Nim](https://nim-lang.org/) language: BSD family, older versions of Windows, etc. There has not been sufficient experimentation with nim-codex on such platforms, so instructions are not provided. Community contributions to these docs and our build system are welcome!
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## Repository
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In Bash run
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```shell
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git clone https://github.com/codex-storage/nim-codex.git repos/nim-codex && cd repos/nim-codex
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```
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nim-codex uses the [nimbus-build-system](https://github.com/status-im/nimbus-build-system), so next run
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```shell
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make update
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```
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This step can take a while to complete because by default it builds the [Nim compiler](https://nim-lang.org/docs/nimc.html).
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To see more output from `make` pass `V=1`. This works for all `make` targets in projects using the nimbus-build-system
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```shell
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make V=1 update
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```
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## Executable
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In Bash run
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```shell
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make
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```
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The default `make` target creates the `build/codex` executable.
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## Example usage
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See the [instructions](README.md#cli-options) in the main readme.
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## Tests
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In Bash run
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```shell
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make test
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```
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### testAll
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#### Prerequisites
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To run the integration tests, an Ethereum test node is required. Follow these instructions to set it up.
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##### Windows (do this before 'All platforms')
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1. Download and install Visual Studio 2017 or newer. (Not VSCode!) In the Workloads overview, enable `Desktop development with C++`. ( https://visualstudio.microsoft.com )
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##### All platforms
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1. Install NodeJS (tested with v18.14.0), consider using NVM as a version manager. [Node Version Manager (`nvm`)](https://github.com/nvm-sh/nvm#readme)
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1. Open a terminal
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1. Go to the vendor/codex-contracts-eth folder: `cd /<git-root>/vendor/codex-contracts-eth/`
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1. `npm install` -> Should complete with the number of packages added and an overview of known vulnerabilities.
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1. `npm test` -> Should output test results. May take a minute.
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Before the integration tests are started, you must start the Ethereum test node manually.
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1. Open a terminal
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1. Go to the vendor/codex-contracts-eth folder: `cd /<git-root>/vendor/codex-contracts-eth/`
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1. `npm start` -> This should launch Hardhat, and output a number of keys and a warning message.
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#### Run
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The `testAll` target runs the same tests as `make test` and also runs tests for nim-codex's Ethereum contracts, as well a basic suite of integration tests.
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To run `make testAll`.
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Use a new terminal to run:
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```shell
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make testAll
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```
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