Move request to background task

netbox/utilities/releases.py

@@ -1,35 +1,24 @@
-import requests
-from cacheops import cached
+import logging
+
+from cacheops import CacheMiss, cache
 from django.conf import settings
-from packaging import version
 
+from utilities.background_tasks import get_releases
 
-@cached(timeout=settings.UPDATE_CACHE_TIMEOUT, extra=settings.UPDATE_REPO_URL)
-def get_releases(pre_releases=False):
-    url = '{}/releases'.format(settings.UPDATE_REPO_URL)
-    headers = {
-        'Accept': 'application/vnd.github.v3+json',
-    }
-    try:
-        response = requests.get(url, headers=headers)
-        releases = [(version.parse(release['tag_name']), release.get('html_url'))
-                    for release in response.json()
-                    if 'tag_name' in release]
-    except Exception:
-        releases = []
-
-    if not pre_releases:
-        releases = [(release, url)
-                    for release, url in releases
-                    if not release.is_devrelease and not release.is_prerelease]
-
-    return releases
+# Get an instance of a logger
+logger = logging.getLogger(__name__)
 
 
 def get_latest_release(pre_releases=False):
     if settings.UPDATE_REPO_URL:
-        releases = get_releases(pre_releases)
-        if releases:
-            return max(releases)
+        try:
+            releases = cache.get('netbox_releases')
+            if releases:
+                return max(releases)
+        except CacheMiss:
+            logger.debug("Starting background task to get releases")
+
+            # Get the releases in the background worker, it will fill the cache
+            get_releases.delay(pre_releases=pre_releases)
 
     return 'unknown', None