experiment with the circle config

.circleci/config.yml

@@ -2,23 +2,48 @@
 version: 2
 jobs:
   build:
+    parallelism: 1
     docker:
-      # specify the version here
       - image: circleci/elixir:1.9.1
+        environment:
+            MIX_ENV: test
 
     working_directory: ~/repo
     steps:
       - checkout
+
+      - restore_cache:
+          keys:
+            - v1-dependency-cache-{{ checksum "mix.lock" }}
+            - v1-dependency-cache
+
+      - run: mix local.hex --force  # install Hex locally (without prompt)
+      - run: mix local.rebar --force  # fetch a copy of rebar (without prompt)
       - run:
-          name: "Install Rust and WASM toolchain"
+          name: "Install Rust"
           command: |
-            curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
+            curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- --default-toolchain stable -y
+            source $HOME/.cargo/env
             rustup component add rustfmt
             rustup target add wasm32-unknown-unknown # to compile our example WASM files for testing
 
-      - run: mix deps.get
-      - run: mix test
-      - run: mix format --check-formatted
-      - run: cargo fmt --manifest-path native/wasmex/Cargo.toml  -- --check
-      - run: mix dialyzer
-      - run: mix docs
+      - run:
+          name: "Run Checks (Tests, Formatters, ..)"
+          command: |
+            source $HOME/.cargo/env
+            mix deps.get
+            mix test
+            mix format --check-formatted
+            cargo fmt --manifest-path native/wasmex/Cargo.toml  -- --check
+            mix dialyzer
+            mix docs
+
+      - save_cache:
+          key: v1-dependency-cache-{{ checksum "mix.lock" }}
+          paths:
+            - _build
+            - deps
+            - ~/.mix
+
+      - store_test_results:
+          path: _build/test/lib/wasmex

.gitignore

@@ -23,5 +23,4 @@ erl_crash.dump
 wasmex-*.tar
 
 # Cargo things in the Rust part of this package
-Cargo.*
 priv/native/libwasmex.so

README.md

@@ -8,6 +8,7 @@
   <a href="https://github.com/tessi/wasmex/blob/master/LICENSE">
     <img src="https://img.shields.io/github/license/wasmerio/wasmer.svg" alt="License">
   </a>
+  [![CircleCI](https://circleci.com/gh/tessi/wasmex.svg?style=svg)](https://circleci.com/gh/tessi/wasmex)
 </p>
 
 Wasmex is an Elixir library for executing WebAssembly binaries:

mix.exs

@@ -31,8 +31,8 @@ defmodule Wasmex.MixProject do
   defp deps do
     [
       {:rustler, "~> 0.21.0"},
-      {:ex_doc, "~> 0.21.2", only: :dev},
-      {:dialyxir, "~> 1.0.0-rc.7", only: [:dev], runtime: false}
+      {:ex_doc, "~> 0.21.2", only: [:dev, :test]},
+      {:dialyxir, "~> 1.0.0-rc.7", only: [:dev, :test], runtime: false}
     ]
   end
 

test/wasm_source/Cargo.toml

@@ -0,0 +1,10 @@
+[package]
+name = "wasmex_test"
+version = "0.1.0"
+authors = ["Philipp Tessenow <philipp@tessenow.org>"]
+edition = "2018"
+
+[dependencies]
+
+[lib]
+crate-type =["cdylib"]