ci: Add Arch Linux OS test

.github/workflows/os_comp.yml

@@ -1,10 +1,10 @@
-name: OS Compatibility Tests
+name: OS Comp Tests
 
 on: [push, pull_request]
 
 jobs:
   xenial:
-    name: Ubuntu 16.04 (xenial)
+    name: Ubuntu 16.04
     runs-on: ubuntu-16.04
     steps:
     - uses: actions/checkout@v1
@@ -25,3 +25,14 @@ jobs:
       env:
         CI: '1'
         XENIAL: '1'
+
+  arch:
+    name: Arch Linux
+    runs-on: ubuntu-latest
+    container: mensinda/arch:latest
+    steps:
+    - uses: actions/checkout@v1
+    - name: Run tests
+      run: ./run_tests.py
+      env:
+        CI: '1'

ci/ciimage/arch/Dockerfile

@@ -0,0 +1,4 @@
+FROM archlinux:latest
+
+ADD install.sh /usr/sbin/docker-arch-install
+RUN docker-arch-install

ci/ciimage/arch/install.sh

@@ -0,0 +1,48 @@
+#!/bin/bash
+
+# Inspired by https://github.com/greyltc/docker-archlinux-aur/blob/master/add-aur.sh
+
+pkgs=(
+  python python-setuptools python-wheel python-pip python-pytest-xdist python-gobject
+  ninja make git sudo fakeroot autoconf automake patch
+  libelf gcc gcc-fortran gcc-objc vala rust bison flex cython go dlang-dmd
+  mono boost qt5-base gtkmm3 gtest gmock protobuf wxgtk gobject-introspection
+  itstool gtk3 java-environment=8 gtk-doc llvm clang sdl2 graphviz
+  doxygen vulkan-validation-layers openssh mercurial gtk-sharp-2 qt5-tools
+  libwmf valgrind cmake netcdf-fortran openmpi nasm gnustep-base gettext
+  # cuda
+)
+
+aur_pkgs=(hotdoc scalapack)
+cleanup_pkgs=(go)
+
+AUR_USER=docker
+PACMAN_OPTS='--needed --noprogressbar --noconfirm'
+
+# Patch config files
+sed -i 's/#Color/Color/g'                            /etc/pacman.conf
+sed -i 's,#MAKEFLAGS="-j2",MAKEFLAGS="-j$(nproc)",g' /etc/makepkg.conf
+sed -i "s,PKGEXT='.pkg.tar.xz',PKGEXT='.pkg.tar',g"  /etc/makepkg.conf
+
+# Install packages
+pacman -Syu $PACMAN_OPTS "${pkgs[@]}"
+
+# Setup the user
+useradd -m $AUR_USER
+echo "${AUR_USER}:" | chpasswd -e
+echo "$AUR_USER      ALL = NOPASSWD: ALL" >> /etc/sudoers
+
+# Install yay
+su $AUR_USER -c 'cd; git clone https://aur.archlinux.org/yay.git'
+su $AUR_USER -c 'cd; cd yay; makepkg'
+pushd /home/$AUR_USER/yay/
+pacman -U *.pkg.tar --noprogressbar --noconfirm
+popd
+rm -rf /home/$AUR_USER/yay
+
+# Install yay deps
+su $AUR_USER -c "yay -S $PACMAN_OPTS ${aur_pkgs[*]}"
+
+# cleanup
+pacman -Rs --noconfirm "${cleanup_pkgs[@]}"
+su $AUR_USER -c "yes | yay -Scc"