Added method to fetch project versions using PyPi API, removed hardco…

…ded versions in tests.

l2tdevtools/download_helpers/github.py

@@ -102,8 +102,7 @@ def GetLatestVersionWithAPI(self, version_definition):
     github_url = 'https://api.github.com/repos/{0:s}/{1:s}/releases'.format(
         self._organization, self._repository)
     page_content = self.DownloadPageContent(github_url)
-    if not page_content:
-      return None
+
 
     api_response = json.loads(page_content)
     release_names = [release['name'] for release in api_response]

l2tdevtools/download_helpers/interface.py

@@ -103,3 +103,30 @@ def DownloadPageContent(self, download_url, encoding='utf-8'):
       self._cached_url = download_url
 
     return self._cached_page_content
+
+  def DownloadAPIPageContent(self, download_url, encoding='utf-8'):
+    """Download content from a github API url"""
+    if not download_url:
+      return None
+
+    if self._cached_url != download_url:
+      try:
+        url_object = urllib_request.urlopen(download_url)
+      except urllib_error.URLError as exception:
+        logging.warning(
+            'Unable to download URL: {0:s} with error: {1!s}'.format(
+                download_url, exception))
+        return None
+
+      if url_object.code != 403:
+        return None
+
+      page_content = url_object.read()
+
+      if encoding and isinstance(page_content, py2to3.BYTES_TYPE):
+        page_content = page_content.decode(encoding)
+
+      self._cached_page_content = page_content
+      self._cached_url = download_url
+
+    return self._cached_page_content

tests/download_helpers/pypi.py

@@ -30,10 +30,10 @@ def testGetLatestVersion(self):
 
     latest_version = download_helper.GetLatestVersion(self._PROJECT_NAME, None)
 
-    latest_version = download_helper.GetLatestVersionWithAPI(
+    latest_version_with_api = download_helper.GetLatestVersionWithAPI(
         self._PROJECT_NAME, None)
 
-    self.assertEqual(latest_version, self._PROJECT_VERSION)
+    self.assertEqual(latest_version, latest_version_with_api)
 
   def testGetDownloadURL(self):
     """Tests the GetDownloadURL functions."""