Added changelog after review

changelogs/fragments/49123-backport-devuan-support.yml

@@ -0,0 +1,2 @@
+bugfixes:
+  - Backported support for Devuan-based distribution

lib/ansible/module_utils/facts/system/distribution.py

@@ -315,6 +315,15 @@ class DistributionFiles:
         elif 'SteamOS' in data:
             debian_facts['distribution'] = 'SteamOS'
             # nothing else to do, SteamOS gets correct info from python functions
+        elif 'Devuan' in data:
+            debian_facts['distribution'] = 'Devuan'
+            release = re.search(r"PRETTY_NAME=[^(]+ \(?([^)]+?)\)", data)
+            if release:
+                debian_facts['distribution_release'] = release.groups()[0]
+            version = re.search(r"VERSION_ID=\"(.*)\"", data)
+            if version:
+                debian_facts['distribution_version'] = version.group(1)
+                debian_facts['distribution_major_version'] = version.group(1)
         else:
             return False, debian_facts
 
@@ -414,7 +423,7 @@ class Distribution(object):
                                 'Ascendos', 'CloudLinux', 'PSBM', 'OracleLinux', 'OVS',
                                 'OEL', 'Amazon', 'Virtuozzo', 'XenServer'],
                      'Debian': ['Debian', 'Ubuntu', 'Raspbian', 'Neon', 'KDE neon',
-                                'Linux Mint', 'SteamOS'],
+                                'Linux Mint', 'SteamOS', 'Devuan'],
                      'Suse': ['SuSE', 'SLES', 'SLED', 'openSUSE', 'openSUSE Tumbleweed',
                               'SLES_SAP', 'SUSE_LINUX', 'openSUSE Leap'],
                      'Archlinux': ['Archlinux', 'Antergos', 'Manjaro'],

test/units/module_utils/test_distribution_version.py

@@ -427,6 +427,28 @@ DISTRIB_DESCRIPTION="SteamOS 2.0"
             'distribution_version': u'2.0'
         }
     },
+    {
+        'name': "Devuan",
+        'input': {
+            '/etc/os-release': """PRETTY_NAME="Devuan GNU/Linux 1 (jessie)"
+NAME="Devuan GNU/Linux"
+VERSION_ID="1"
+VERSION="1 (jessie)"
+ID=devuan
+HOME_URL="http://www.devuan.org/"
+SUPPORT_URL="http://www.devuan.org/support/"
+BUG_REPORT_URL="https://bugs.devuan.org/"
+"""
+        },
+        'platform.dist': ('', '', ''),
+        'result': {
+            'distribution': u'Devuan',
+            'distribution_major_version': u'1',
+            'distribution_release': u'jessie',
+            'os_family': 'Debian',
+            'distribution_version': u'1'
+        }
+    },
     {
         "platform.dist": [
             "Ubuntu",