add Anitya support

nvchecker/get_version.py

@@ -9,7 +9,8 @@ handler_precedence = (
   'github', 'aur', 'pypi', 'archpkg', 'debianpkg', 'ubuntupkg',
   'gems', 'pacman',
   'cmd', 'bitbucket', 'regex', 'manual', 'vcs',
-  'cratesio', 'npm', 'hackage', 'cpan', 'gitlab', 'packagist'
+  'cratesio', 'npm', 'hackage', 'cpan', 'gitlab', 'packagist',
+  'anitya',
 )
 
 async def get_version(name, conf):

nvchecker/source/anitya.py

@@ -0,0 +1,18 @@
+# MIT licensed
+# Copyright (c) 2017 lilydjwg <lilydjwg@gmail.com>, et al.
+
+import logging
+from . import session
+
+logger = logging.getLogger(__name__)
+
+URL = 'https://release-monitoring.org/api/project/{pkg}'
+
+async def get_version(name, conf):
+  pkg = conf.get('anitya')
+  url = URL.format(pkg = pkg)
+
+  async with session.get(url) as res:
+    data = await res.json()
+
+  return data['version']

tests/test_anitya.py

@@ -0,0 +1,8 @@
+# MIT licensed
+# Copyright (c) 2017 Felix Yan <felixonmars@archlinux.org>, et al.
+
+import pytest
+pytestmark = pytest.mark.asyncio
+
+async def test_anitya(get_version):
+    assert await get_version("shutter", {"anitya": "fedora/shutter"}) == "0.93.1"