Update to v3 of cachix-action ❄️ (#51)

.github/workflows/haskell.yml

@@ -0,0 +1,12 @@
+name: Haskell CI
+on: [push]
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v1
+    - uses: cachix/install-nix-action@v6
+    - uses: cachix/cachix-action@v3
+      with:
+        name: 47deg
+        signingKey: '${{ secrets.CACHIX_SIGNING_KEY }}'

.travis.yml

@@ -1,27 +0,0 @@
-# Choose a build environment
-dist: bionic
-
-# Do not choose a language; we provide our own build tools.
-language: generic
-
-# Caching so the next build will be fast too.
-cache:
-  directories:
-  - $HOME/.stack
-
-# Ensure necessary system libraries are present
-addons:
-  apt:
-    packages:
-      - libgmp-dev
-
-before_install:
-# Download and unpack the stack executable
-- mkdir -p ~/.local/bin
-- export PATH=$HOME/.local/bin:$PATH
-- travis_retry curl -L https://get.haskellstack.org/stable/linux-x86_64.tar.gz | tar xz --wildcards --strip-components=1 -C ~/.local/bin '*/stack'
-
-install:
-# Build dependencies
-- stack --no-terminal --install-ghc test --only-dependencies
-- stack --no-terminal --install-ghc test --only-dependencies --stack-yaml stack-nightly.yaml

README.md

@@ -1,6 +1,6 @@
 # Mu for Haskell
 
-[![Build Status](https://travis-ci.com/higherkindness/mu-haskell.svg?branch=master)](https://travis-ci.com/higherkindness/mu-haskell)
+[![Actions Status](https://github.com/higherkindness/mu-haskell/workflows/Haskell%20CI/badge.svg)](https://github.com/higherkindness/mu-haskell/actions)
 
 This repo defines a set of libraries to write microservices in a format- and protocol-independent way. It shares the same goals as [Mu for Scala](http://higherkindness.io/mu/), but using idiomatic Haskell and more type-level techniques.
 

default.nix

@@ -0,0 +1,24 @@
+{ nixpkgs ? (fetchTarball https://github.com/NixOS/nixpkgs/archive/b1844ef5816b0af8bc2f6215054279ea35e29b77.tar.gz)
+, pkgs ? import nixpkgs (import (builtins.fetchTarball https://github.com/input-output-hk/haskell.nix/archive/83966f3.tar.gz))
+}:
+
+let
+  hnPkgs = pkgs.haskell-nix.stackProject {
+   src = ./.;
+   modules = [];
+  };
+in {
+  compendium-client = hnPkgs.compendium-client.components.library;
+  mu-avro = hnPkgs.mu-avro.components.all;
+  mu-example-health-check = hnPkgs.mu-example-health-check.components.all;
+  mu-example-route-guide = hnPkgs.mu-example-route-guide.components.all;
+  mu-example-seed = hnPkgs.mu-example-seed.components.all;
+  mu-example-todolist = hnPkgs.mu-example-todolist.components.all;
+  mu-example-with-persistent = hnPkgs.mu-example-with-persistent.components.all;
+  mu-grpc-client = hnPkgs.mu-grpc-client.components.library;
+  mu-grpc-server = hnPkgs.mu-grpc-server.components.all;
+  mu-persistent = hnPkgs.mu-persistent.components.library;
+  mu-protobuf = hnPkgs.mu-protobuf.components.all;
+  mu-rpc = hnPkgs.mu-rpc.components.library;
+  mu-schema = hnPkgs.mu-schema.components.library;
+}

examples/health-check/mu-example-health-check.cabal

@@ -15,6 +15,7 @@ maintainer:          alejandro.serrano@47deg.com
 copyright:           Copyright © 2019-2020 47 Degrees. <http://47deg.com>
 category:            Network
 build-type:          Simple
+data-files:          healthcheck.proto
 
 executable health-server
   main-is:             Server.hs

examples/route-guide/mu-example-route-guide.cabal

@@ -15,6 +15,7 @@ maintainer:          alejandro.serrano@47deg.com
 copyright:           Copyright © 2019-2020 47 Degrees. <http://47deg.com>
 category:            Network
 build-type:          Simple
+data-files:          routeguide.proto
 
 executable route-guide-server
   main-is:             Server.hs

examples/seed/mu-example-seed.cabal

@@ -12,6 +12,7 @@ category:            Network
 build-type:          Simple
 cabal-version:       >=1.10
 extra-source-files:  README.md
+data-files:          seed.proto
 
 executable seed-server
   hs-source-dirs:      src

examples/todolist/mu-example-todolist.cabal

@@ -15,6 +15,7 @@ maintainer:          flavio.corpa@47deg.com
 copyright:           Copyright © 2019-2020 47 Degrees. <http://47deg.com>
 category:            Network
 build-type:          Simple
+data-files:          todolist.proto
 
 executable todolist-server
   main-is:             Server.hs

examples/with-persistent/mu-example-with-persistent.cabal

@@ -10,6 +10,7 @@ category:            Network
 build-type:          Simple
 cabal-version:       >=1.10
 extra-source-files:  README.md
+data-files:          with-persistent.proto
 
 executable persistent-server
   hs-source-dirs:      src