feat(arch): add support for archlinux

.travis.yml

     # - env: INSTANCE=default-amazonlinux-2-3000-3-py3
     # - env: INSTANCE=default-ubuntu-1804-3000-3-py2
     # - env: INSTANCE=default-ubuntu-1604-3000-3-py2
-    # - env: INSTANCE=default-arch-base-latest-3000-3-py2
+    - env: INSTANCE=default-arch-base-latest-3000-3-py2
     # - env: INSTANCE=upstart-centos-6-2019-2-py2
     # - env: INSTANCE=upstart-amazonlinux-1-2019-2-py2
     - env: INSTANCE=mysql-debian-10-master-py3

FORMULA

 name: diaspora
-os: Debian, Ubuntu, RedHat, CentOS
-os_family: Debian, RedHat
+os: Debian, Ubuntu, RedHat, CentOS, Arch
+os_family: Debian, RedHat, Arch
 version: 0.1.0
 release: 1
 minimum_version: 2019.2

diaspora/install.sls

       - pkg: diaspora_dependencies
 {%- endif %}
 
+{%- if grains.os_family == 'Arch' %}
+diaspora_arch_install_devel_group:
+  pkg.group_installed:
+    - name: base-devel
+    - require_in:
+      - pkg: diaspora_dependencies
+{%- endif %}
+
 diaspora_dependencies:
   pkg.installed:
     - pkgs: {{ diaspora.dependencies|json }}

diaspora/osfamilymap.yaml

     environment:
       certificate_authorities: /etc/pki/tls/certs/ca-bundle.crt
   libjemalloc: /usr/lib64/libjemalloc.so.2
+
+Arch:
+  dependencies:
+    - git
+    - imagemagick
+    - net-tools
+    - libidn
+    - libxslt
+    - gsfonts
+    - nodejs
+    - jemalloc
+  postgresql_package: postgresql-libs
+  mysql_package: libmariadbclient
+  redis_package: redis
+  redis_service: redis
+  configuration:
+    environment:
+      certificate_authorities: /etc/ssl/certs/ca-certificates.crt
+  libjemalloc: /usr/lib/libjemalloc.so.2

test/integration/_mapdata/files/_mapdata/arch-base-latest.yaml

+# yamllint disable rule:indentation rule:line-length
+# Arch
+---
+configuration:
+  environment:
+    certificate_authorities: /etc/ssl/certs/ca-certificates.crt
+    url: https://example.org/
+  server:
+    listen: 127.0.0.1:3000
+    rails_environment: production
+  settings:
+    pod_name: example diaspora* pod
+database:
+  database: diaspora
+  host: localhost
+  password: secret
+  type: postgresql
+  username: diaspora
+dependencies:
+- git
+- imagemagick
+- net-tools
+- libidn
+- libxslt
+- gsfonts
+- nodejs
+- jemalloc
+install_path: /srv/diaspora
+install_redis: true
+libjemalloc: /usr/lib/libjemalloc.so.2
+mysql_package: libmariadbclient
+postgresql_package: postgresql-libs
+redis_package: redis
+redis_service: redis
+repository: https://github.com/diaspora/diaspora.git
+ruby_version: 2.6.6
+systemd:
+  web_template: salt://diaspora/files/diaspora-web.service
+user:
+  shell: /bin/bash
+  username: diaspora
+version: develop

test/integration/_mapdata/inspec.yml

   - platform-name: debian
   - platform-name: ubuntu
   - platform-name: centos
+  - platform-name: arch

test/integration/default/controls/config_spec.rb

 
   ca_file =
     case platform[:family]
-    when 'debian'
+    when 'debian', 'arch'
       '/etc/ssl/certs/ca-certificates.crt'
     when 'redhat'
       '/etc/pki/tls/certs/ca-bundle.crt'

test/integration/default/inspec.yml

   - platform-name: debian
   - platform-name: ubuntu
   - platform-name: centos
+  - platform-name: arch

test/salt/states/postgres/init.sls

 {% set pkg = salt['grains.filter_by']({
     'Debian': 'postgresql',
     'RedHat': 'postgresql-server',
+    'Arch': 'postgresql',
 }) -%}
 
 pgsql_package:
     - name: {{ pkg }}
 
 {%- if grains.os_family == 'RedHat' %}
-pgsql_initdb:
+pgsql_initdb_redhat:
   cmd.run:
     - name: postgresql-setup initdb
     - require:
       - cmd: pgsql_initdb_redhat
     - require_in:
       - service: pgsql_service
+{%- elif grains.os_family == 'Arch' %}
+pgsql_initdb_arch:
+  cmd.run:
+    - name: initdb --locale en_US.UTF-8 -D '/var/lib/postgres/data'
+    - runas: postgres
+    - require:
+      - pkg: pgsql_package
+    - require_in:
+      - service: pgsql_service
 {%- endif %}
 
 pgsql_service:

test/salt/states/redis/init.sls

-{%- if grains.osfinger == 'Ubuntu-18.04' %}
+{%- if grains.get('osfinger', grains.os) == 'Ubuntu-18.04' %}
 redis_config:
   file.replace:
     - name: '/etc/redis/redis.conf'