# Mina build instructions (Ubuntu 20.04)

Mina's reference implementation is written in Ocaml. This document contains instructions for setting up a mina development environment on Ubuntu 20.04.

## Clone the repo

(These were done on `develop` branch, last commit hash 6ca0831 as of writing this doc):

`git clone https://github.com/MinaProtocol/mina`
`cd mina`
`git submodule update --init --recursive`
`git config --local --add submodule.recurse true`

## Install required OS libs
https://github.com/MinaProtocol/mina/blob/a42bdee/dockerfiles/Dockerfile-toolchain

sudo apt-get update && sudo apt-get install --yes \
    cmake \
    jq \
    libboost-dev \
    libboost-program-options-dev \
    libffi-dev \
    libgmp-dev \
    libgmp3-dev \
    libjemalloc-dev \
    libpq-dev \
    libprocps-dev \
    libsodium-dev \
    libssl-dev \
    lsb \
    m4 \
    nodejs \
    pandoc \
    patchelf \
    python \
    perl \
    pkg-config \
    python-jinja2 \
    python-pip \
    python3-pip \
    rubygems \
    zlib1g-dev \
    libbz2-dev \
    apt-transport-https

## Setup ocaml

`sudo apt-get install ocaml`

## Setup opam 2.0.7

add-apt-repository ppa:avsm/ppa
apt update
apt install opam
opam init

Refer to https://opam.ocaml.org/doc/Install.html for details

## Setup dependencies and pins for OPAM

$ sh scripts/setup-opam.sh

## Setup golang (go1.17.2 linux/amd64)

This is required for mina's capnproto dependency.

## Setup capnproto-go binary compiler in /usr/local/bin

https://github.com/MinaProtocol/mina/blob/6ca0831c50d8860e20837c71092ccf45a9d902e3/dockerfiles/stages/1-build-deps#L127

## Install cargo and rustc 1.45.2

curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
source $HOME/.cargo/envrust
rustup toolchain install 1.45.2 && rustup default 1.45.2

## Build the mina daemon

# set this env var to build the binary for mainnet
$ DUNE_PROFILE=mainnet 
# this should build the mina binary as `_build/default/src/app/cli/src/mina.exe`
$ make build

## Run mina daemon

$ _build/default/src/app/cli/src/mina.exe

## Run mina daemon as a seed node with peer list

$ _build/default/src/app/cli/src/mina.exe daemon --peer-list-url https://storage.googleapis.com/mina-seed-lists/mainnet_seeds.txt --seed

## VSCode setup

Install ocaml platform extension: https://marketplace.visualstudio.com/items?itemName=ocamllabs.ocaml-platform

Also install `opam install ocaml-lsp-server` in terminal

Select the right ocaml sandbox/switch from extension 4.11.2 using the ocaml button on left.

Run `eval $(opam env)` on terminal to make sure the environment is recognized.

The autocomplete and jump to definition should work.

## Report any issues below