From 59ebb776054cb95b3a76c80599587093e319fb3f Mon Sep 17 00:00:00 2001
From: Raphael Roberts <raphael.roberts48@gmail.com>
Date: Tue, 4 May 2021 01:28:28 -0500
Subject: [PATCH] journalctl should be utc; handle case where no update has
 taken place yet

---
 diff_packages.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/diff_packages.py b/diff_packages.py
index 0ca7767..57badcb 100644
--- a/diff_packages.py
+++ b/diff_packages.py
@@ -8,7 +8,7 @@ from pathlib import Path
 
 def get_last_boot():
     with subprocess.Popen(
-        ["journalctl", "--list-boots"], stdout=subprocess.PIPE
+        ["journalctl", "--utc", "--list-boots"], stdout=subprocess.PIPE
     ) as proc:
         for line in proc.stdout.read().decode().split("\n"):
             info, end_time = line.split(chr(8212))
@@ -40,6 +40,9 @@ def get_snapshot__after_datetime(start: datetime.datetime):
             if 0 < d < td:
                 td = d
                 ret = snapshot
+        if ret is None:
+            print(f"No update since last boot on {start.astimezone()}")
+            exit(0)
         return ret