1 files changed, 58 insertions, 0 deletions
diff --git a/.github/scripts/platform-impending-eol.py b/.github/scripts/platform-impending-eol.py
new file mode 100755
index 00000000..c57e5edd
--- /dev/null
+++ b/.github/scripts/platform-impending-eol.py
@@ -0,0 +1,58 @@
+#!/usr/bin/env python3
+'''Check if a given distro is going to be EOL soon.
+
+   This queries the public API of https://endoflife.date to fetch EOL dates.
+
+   ‘soon’ is defined by LEAD_DAYS, currently 30 days.'''
+
+import datetime
+import json
+import sys
+import urllib.request
+
+URL_BASE = 'https://endoflife.date/api'
+NOW = datetime.date.today()
+LEAD_DAYS = datetime.timedelta(days=30)
+
+DISTRO = sys.argv[1]
+RELEASE = sys.argv[2]
+
+EXIT_NOT_IMPENDING = 0
+EXIT_IMPENDING = 1
+EXIT_NO_DATA = 2
+EXIT_FAILURE = 3
+
+try:
+    with urllib.request.urlopen(f'{ URL_BASE }/{ DISTRO }/{ RELEASE }.json') as response:
+        match response.status:
+            case 200:
+                data = json.load(response)
+            case _:
+                print(
+                    f'Failed to retrieve data for { DISTRO } { RELEASE } ' +
+                    f'(status: { response.status }).',
+                    file=sys.stderr
+                )
+                sys.exit(EXIT_FAILURE)
+except urllib.error.HTTPError as e:
+    match e.code:
+        case 404:
+            print(f'No data available for { DISTRO } { RELEASE }.', file=sys.stderr)
+            sys.exit(EXIT_NO_DATA)
+        case _:
+            print(
+                f'Failed to retrieve data for { DISTRO } { RELEASE } ' +
+                f'(status: { e.code }).',
+                file=sys.stderr
+            )
+            sys.exit(EXIT_FAILURE)
+
+eol = datetime.date.fromisoformat(data['eol'])
+
+offset = abs(eol - NOW)
+
+if offset <= LEAD_DAYS:
+    print(data['eol'])
+    sys.exit(EXIT_IMPENDING)
+else:
+    sys.exit(EXIT_NOT_IMPENDING)