feat: Add sparkle source

README.rst

@@ -49,6 +49,7 @@ Contents
   * `Check Repology (repology.org) <#check-repology>`_
   * `Check Anitya (release-monitoring.org) <#check-anitya>`_
   * `Check Android SDK <#check-android-sdk>`_
+  * `Check Sparkle framework <#check-sparkle-framework>`_
   * `Manually updating <#manually-updating>`_
   * `Version Control System (VCS) (git, hg, svn, bzr) <#version-control-system-vcs-git-hg-svn-bzr>`_
   * `Other <#other>`_
@@ -506,6 +507,13 @@ android_sdk
 repo
   Should be one of ``addon`` or ``package``. Packages in ``addon2-1.xml`` use ``addon`` and packages in ``repository2-1.xml`` use ``package``.
 
+Check Sparkle framework
+-----------------------
+This enables you to track updates of macOS applications which using `Sparkle framework <https://sparkle-project.org/>`_.
+
+sparkle
+  The url of the sparkle appcast.
+
 Manually updating
 -----------------
 This enables you to manually specify the version (maybe because you want to approve each release before it gets to the script).

nvchecker/get_version.py

@@ -15,7 +15,7 @@ handler_precedence = (
   'gems', 'pacman',
   'cmd', 'bitbucket', 'regex', 'manual', 'vcs',
   'cratesio', 'npm', 'hackage', 'cpan', 'gitlab', 'packagist',
-  'repology', 'anitya', 'android_sdk',
+  'repology', 'anitya', 'android_sdk', 'sparkle',
 )
 
 def substitute_version(version, name, conf):

nvchecker/source/sparkle.py

@@ -0,0 +1,31 @@
+# MIT licensed
+# Copyright (c) 2020 Sunlei <guizaicn@gmail.com>
+
+from xml.etree import ElementTree
+
+from . import session
+
+
+async def get_version(name, conf, **kwargs):
+  sparkle = conf['sparkle']
+
+  async with session.get(sparkle) as res:
+    resp = await res.read()
+
+  root = ElementTree.fromstring(resp)
+  item = root.find('./channel/item[1]/enclosure')
+
+  version_string = item.get('{http://www.andymatuschak.org/xml-namespaces/sparkle}shortVersionString')
+  build_number = item.get('{http://www.andymatuschak.org/xml-namespaces/sparkle}version')
+
+  if (version_string and version_string.isdigit()) and (build_number and not build_number.isdigit()):
+    version_string, build_number = build_number, version_string
+
+  version = []
+
+  if version_string:
+    version.append(version_string)
+  if build_number:
+    version.append(build_number)
+
+  return '-'.join(version) if version else None

tests/test_sparkle.py

@@ -0,0 +1,8 @@
+# MIT licensed
+# Copyright (c) 2020 Sunlei <guizaicn@gmail.com>
+
+import pytest
+pytestmark = [pytest.mark.asyncio, pytest.mark.needs_net]
+
+async def test_sparkle(get_version):
+    assert await get_version("example", {"sparkle": "https://sparkle-project.org/files/sparkletestcast.xml"}) == "2.0"