Scala

Scala is a privacy-focused cryptocurrency project linking distributed technologies to build a globally scalable and mobile-friendly ecosystem. We provide an opaque blockchain, untraceable payments, unlinkable transactions, and blockchain-analysis resistance.

Our vision is to distribute wealth for everyone and every device. We want to be the people’s coin. To achieve this goal, we focus on implementing solutions that are mobile-friendly and energy-efficient. There are about 4 billion mobile devices in the world, and we want to make sure that our ecosystem takes that into account. We also take a lot of time to improve the user experience so that our applications can be used easily by anyone.

Obviously, our goal is also to bring useful utilities and to solve real-world problems, in a way that is economically viable for the project and to sustain our growth. We take advantage of next-gen technologies such as IPFS, WebTorrent and custom software to provide the utility of data storage and we use the proven CryptoNote protocol for providing the financial aspects.

• Website: scalaproject.io
• Mail: [email protected]
• Discord: chat.scalaproject.io

Table of Contents

• Announcements
• Compiling Scala from source
• More information
• Licenses

Announcements

• You can follow our twitter to get all the new information regarding the project.

Compiling Scala from source

Notes

We no longer support 32-bit platforms, we use go-ipfs extensively as part of our IPFS implementation and they no longer support 32-bit, hence we had to remove it.

Dependencies

The following table summarizes the tools and libraries required to build. A few of the libraries are also included in this repository (marked as "Vendored"). By default, the build uses the library installed on the system, and ignores the vendored sources. However, if no library is found installed on the system, then the vendored source will be built and used. The vendored sources are also used for statically-linked builds because distribution packages often include only shared library binaries (.so) but not static library archives (.a).

Dep	Min. version	Vendored	Debian/Ubuntu pkg	Arch pkg	Void pkg	Fedora pkg	Optional	Purpose
GCC	5	NO	build-essential	base-devel	base-devel	gcc	NO
CMake	3.5	NO	cmake	cmake	cmake	cmake	NO
pkg-config	any	NO	pkg-config	base-devel	base-devel	pkgconf	NO
Boost	1.58	NO	libboost-all-dev	boost	boost-devel	boost-devel	NO	C++ libraries
OpenSSL	basically any	NO	libssl-dev	openssl	libressl-devel	openssl-devel	NO	sha256 sum
libzmq	4.2.0	NO	libzmq3-dev	zeromq	zeromq-devel	zeromq-devel	NO	ZeroMQ library
OpenPGM	?	NO	libpgm-dev	libpgm		openpgm-devel	NO	For ZeroMQ
libnorm[2]	?	NO	libnorm-dev				YES	For ZeroMQ
libunbound	1.4.16	YES	libunbound-dev	unbound	unbound-devel	unbound-devel	NO	DNS resolver
libsodium	?	NO	libsodium-dev	libsodium	libsodium-devel	libsodium-devel	NO	cryptography
libunwind	any	NO	libunwind8-dev	libunwind	libunwind-devel	libunwind-devel	YES	Stack traces
liblzma	any	NO	liblzma-dev	xz	liblzma-devel	xz-devel	YES	For libunwind
libreadline	6.3.0	NO	libreadline6-dev	readline	readline-devel	readline-devel	YES	Input editing
ldns	1.6.17	NO	libldns-dev	ldns	libldns-devel	ldns-devel	YES	SSL toolkit
expat	1.1	NO	libexpat1-dev	expat	expat-devel	expat-devel	YES	XML parsing
GTest	1.5	YES	libgtest-dev[1]	gtest	gtest-devel	gtest-devel	YES	Test suite
ccache	any	NO	ccache	ccache	ccache	ccache	YES	Compil. cache
Doxygen	any	NO	doxygen	doxygen	doxygen	doxygen	YES	Documentation
Graphviz	any	NO	graphviz	graphviz	graphviz	graphviz	YES	Documentation
lrelease	?	NO	qttools5-dev-tools	qt5-tools	qt5-tools	qt5-linguist	YES	Translations
libhidapi	?	NO	libhidapi-dev	hidapi	hidapi-devel	hidapi-devel	YES	Hardware wallet
libusb	?	NO	libusb-1.0-0-dev	libusb	libusb-devel	libusbx-devel	YES	Hardware wallet
libprotobuf	?	NO	libprotobuf-dev	protobuf	protobuf-devel	protobuf-devel	YES	Hardware wallet
protoc	?	NO	protobuf-compiler	protobuf	protobuf	protobuf-compiler	YES	Hardware wallet
libudev	?	No	libudev-dev	systemd	eudev-libudev-devel	systemd-devel	YES	Hardware wallet

[1] On Debian/Ubuntu libgtest-dev only includes sources and headers. You must build the library binary manually. This can be done with the following command sudo apt-get install libgtest-dev && cd /usr/src/gtest && sudo cmake . && sudo make then:

• on Debian: sudo mv libg* /usr/lib/
• on Ubuntu: sudo mv lib/libg* /usr/lib/

[2] libnorm-dev is needed if your zmq library was built with libnorm, and not needed otherwise

Install all dependencies at once on Debian/Ubuntu:

sudo apt update && sudo apt install build-essential cmake pkg-config libboost-all-dev libssl-dev libzmq3-dev libunbound-dev libsodium-dev libunwind8-dev liblzma-dev libreadline6-dev libldns-dev libexpat1-dev doxygen graphviz libpgm-dev qttools5-dev-tools libhidapi-dev libusb-dev libprotobuf-dev protobuf-compiler

Install all dependencies at once on macOS with the provided Brewfile: brew update && brew bundle --file=contrib/brew/Brewfile

FreeBSD 12.1 one-liner required to build dependencies: pkg install git gmake cmake pkgconf boost-libs libzmq4 libsodium unbound

Cloning the repository

Clone recursively to pull-in needed submodule(s):

$ git clone --recursive https://github.com/scala-network/scala

If you already have a repo cloned, initialize and update:

$ cd scala && git submodule init && git submodule update

Build instructions

Scala uses the CMake build system and a top-level Makefile that invokes cmake commands as needed.

On Linux and macOS

• Install the dependencies

• Change to the root of the source code directory, change to the most recent release branch, and build:

  cd scala
  make

  Optional: If your machine has several cores and enough memory, enable parallel build by running make -j<number of threads> instead of make. For this to be worthwhile, the machine should have one core and about 2GB of RAM available per thread.

• The resulting executables can be found in build/release/bin

• Add PATH="$PATH:$HOME/scala/build/release/bin" to .profile

• Run Scala with scalad --detach

• Optional: build and run the test suite to verify the binaries:

  make release-test

  NOTE: core_tests test may take a few hours to complete.

• Optional: to build binaries suitable for debugging:

  make debug

• Optional: to build statically-linked binaries:

  make release-static

Dependencies need to be built with -fPIC. Static libraries usually aren't, so you may have to build them yourself with -fPIC. Refer to their documentation for how to build them.

• Optional: build documentation in doc/html (omit HAVE_DOT=YES if graphviz is not installed):

  HAVE_DOT=YES doxygen Doxyfile

On Windows:

Binaries for Windows are built on Windows using the MinGW toolchain within MSYS2 environment. The MSYS2 environment emulates a POSIX system. The toolchain runs within the environment and cross-compiles binaries that can run outside of the environment as a regular Windows application.

Preparing the build environment

• Download and install the MSYS2 installer, the 64-bit package, depending on your system.

• Open the MSYS shell via the MSYS2 Shell shortcut

• Update packages using pacman:

  pacman -Syu

• Exit the MSYS shell using Alt+F4

• Edit the properties for the MSYS2 Shell shortcut changing "msys2_shell.bat" to "msys2_shell.cmd -mingw64"

• Restart MSYS shell via modified shortcut and update packages again using pacman:

  pacman -Syu

• Restart MSYS shell via modified shortcut and update packages again using pacman:

  pacman -Syu

  To build for 64-bit Windows:

  pacman -S mingw-w64-x86_64-toolchain make mingw-w64-x86_64-cmake mingw-w64-x86_64-boost mingw-w64-x86_64-openssl mingw-w64-x86_64-zeromq mingw-w64-x86_64-libsodium mingw-w64-x86_64-hidapi mingw-w64-x86_64-unbound

  pacman -S mingw-w64-x86_64-toolchain make mingw-w64-x86_64-cmake mingw-w64-x86_64-boost mingw-w64-x86_64-openssl mingw-w64-x86_64-zeromq mingw-w64-x86_64-libsodium mingw-w64-x86_64-hidapi

  To build for 64-bit Windows:

  pacman -S mingw-w64-i686-toolchain make mingw-w64-i686-cmake mingw-w64-i686-boost mingw-w64-i686-openssl mingw-w64-i686-zeromq mingw-w64-i686-libsodium mingw-w64-i686-hidapi mingw-w64-i686-unbound

• Open the MingW shell via MinGW-w64-Win64 Shell shortcut on 64-bit Windows

Cloning

• To git clone, run:

  git clone --recursive https://github.com/scala-network/scala.git

Building

• Change to the cloned directory, run:

  cd scala

• If you would like a specific version/tag, do a git checkout for that version. eg. 'v7.5.0'. If you don't care about the version and just want binaries from master, skip this step:

  git checkout v7.5.0

• To start building run:

  make release-static-win64

• The resulting executables can be found in build/release/bin

• Optional: to build Windows binaries suitable for debugging , run:

  make debug-static-win64

• The resulting executables can be found in build/debug/bin

More Information

A lot more information about the project is available on the wiki and we also hang out a lot on discord we would love to discuss new ideas and projects with you <3

Licenses

Copyright (c) 2018-2021 The Scala Network.

Copyright (c) 2014-2021 The Monero Project.

Portions Copyright (c) 2012-2013 The Cryptonote developers.

Also please see the LICENSE file for more information.