added app skeleton

.gitignore

@@ -0,0 +1,10 @@
+.eunit
+*.o
+*.beam
+*.plt
+erl_crash.dump
+ebin/*.beam
+.concrete/DEV_MODE
+.rebar
+_build
+.idea

Makefile

@@ -0,0 +1,49 @@
+DOCKER = $(shell which docker)
+ifeq ($(DOCKER),)
+$(error "Docker not available on this system")
+endif
+
+DOCKER_COMPOSE = $(shell which docker-compose)
+ifeq ($(DOCKER_COMPOSE),)
+$(error "DockerCompose not available on this system")
+endif
+
+# use to override vars for your platform
+ifeq (env.mk,$(wildcard env.mk))
+	include env.mk
+endif
+
+all: build_imgs up tests rel
+
+build_imgs:
+	@echo "Update docker images..."
+	@${DOCKER_COMPOSE} build
+
+up:
+	@${DOCKER_COMPOSE} up -d
+
+down:
+	@${DOCKER_COMPOSE} down
+
+tests:
+	@echo "Testing..."
+	@${DOCKER_COMPOSE} exec test bash -c "cd /project && make -f sandbox.mk tests"
+
+rel:
+	@echo "Build release..."
+	@${DOCKER_COMPOSE} exec test bash -c "cd /project && make -f sandbox.mk prod"
+
+lint:
+	@echo "Lint..."
+	@${DOCKER_COMPOSE} exec test bash -c "cd /project && make -f sandbox.mk lint"
+
+xref:
+	@echo "Xref analysis..."
+	@${DOCKER_COMPOSE} exec test bash -c "cd /project && make -f sandbox.mk xref"
+
+dialyzer:
+	@echo "Dialyzer..."
+	@${DOCKER_COMPOSE} exec test bash -c "cd /project && make -f sandbox.mk dialyzer"
+
+upgrade_rebar:
+	@${DOCKER_COMPOSE} exec test bash -c "cd /project && make -f sandbox.mk upgrade_rebar"

README.md

@@ -0,0 +1,14 @@
+# eapa
+Erlang Arbitrary Precision Arithmetics
+
+**release:**
+`rebar3 as prod release`
+
+**test:**
+`rebar3 as test ct`
+
+In Docker enviroment:
+* `make tests` - run tests
+* `make lint` - linter
+* `make xref` - xref analysis
+* `make prod` - generate release for target

config/sys.config

@@ -0,0 +1 @@
+[].

config/vm.args

@@ -0,0 +1,15 @@
+## Name of the node
+-name eapa@127.0.0.1
+
+## Cookie for distributed erlang
+-setcookie dev
+
+## Enable kernel poll and a few async threads
+##+K true
+##+A 5
+
+## Increase number of concurrent ports/sockets
+##-env ERL_MAX_PORTS 4096
+
+## Tweak GC to run more often
+##-env ERL_FULLSWEEP_AFTER 10

crates/eapa/.gitignore

@@ -0,0 +1,2 @@
+target/*
+.idea/*

crates/eapa/Cargo.toml

@@ -0,0 +1,15 @@
+[package]
+name = "eapa"
+version = "0.1.0"
+authors = ["Maxim Molchanov <m.molchanov@vonmo.com>"]
+license = "MIT/GPL"
+
+[lib]
+name = "eapa"
+crate-type = ["dylib"]
+
+[dependencies]
+erlang_nif-sys = "=0.6.4"
+lazy_static = "=1.1.*"
+rustler = "=0.18.0"
+rug = "=1.2.1"

crates/eapa/src/lib.rs

@@ -0,0 +1,31 @@
+#[macro_use]
+extern crate lazy_static;
+#[macro_use]
+extern crate rustler;
+
+use rustler::{Encoder, Env, NifResult, Term};
+use rustler::resource::ResourceArc;
+use std::sync::RwLock;
+
+mod atoms {
+    rustler_atoms! {
+        atom ok;
+        atom vn1;
+    }
+}
+
+rustler_export_nifs!(
+    "eapa",
+    [
+        ("lxcode", 0, lxcode), // library version code
+    ],
+    Some(on_load)
+);
+
+fn on_load<'a>(env: Env<'a>, _load_info: Term<'a>) -> bool {
+    true
+}
+
+fn lxcode<'a>(env: Env<'a>, _args: &[Term<'a>]) -> NifResult<Term<'a>> {
+    Ok((atoms::ok(), atoms::vn1()).encode(env))
+}

docker-compose.yml

@@ -0,0 +1,15 @@
+version: '3.2'
+services:
+
+  base:
+    build: imgs/base
+
+  test:
+    image: eapa_base:latest
+    depends_on:
+      - base
+    volumes:
+      - "./:/project:Z"
+    tmpfs:
+      - /run
+      - /tmp

imgs/base/Dockerfile

@@ -0,0 +1,38 @@
+FROM elzor/erlang:20.3 AS erlang
+FROM rust:1.28 AS rust
+
+FROM debian:9.4
+
+COPY --from=erlang /erl /erl
+ENV PATH=/erl/bin:$PATH
+
+COPY --from=rust /usr/local/rustup /usr/local/rustup
+COPY --from=rust /usr/local/cargo /usr/local/cargo
+
+ENV RUSTUP_HOME=/usr/local/rustup \
+    CARGO_HOME=/usr/local/cargo \
+    PATH=/usr/local/cargo/bin:$PATH
+
+RUN apt-get update \
+    && apt-get install --no-install-recommends -y \
+    apt-transport-https \
+    wget \
+    curl \
+    build-essential \
+    git \
+    openssl \
+    libssl-dev \
+    libncurses5 \
+    libncurses5-dev \
+    xsltproc \
+    automake \
+    autoconf \
+    clang \
+    libclang-dev \
+    procps \
+    ca-certificates \
+    && apt-get clean
+
+ADD ./docker-entry.sh /docker-entry.sh
+
+CMD ["/docker-entry.sh"]

imgs/base/docker-entry.sh

@@ -0,0 +1,7 @@
+#!/bin/sh
+set -e
+
+a=0
+until [ ! $a -lt 10 ]; do
+    sleep 1
+done

priv/.gitignore

@@ -0,0 +1 @@
+*.so