From 9125171789b3e3fb60ad27f405aed3a6a910726d Mon Sep 17 00:00:00 2001
From: Sean Whitton <spwhitton@spwhitton.name>
Date: Thu, 1 Oct 2020 23:29:08 -0700
Subject: workstation-duplicity sends notifications on failure

---
 bin/workstation-duplicity | 28 ++++++++++++++++++++++------
 1 file changed, 22 insertions(+), 6 deletions(-)

diff --git a/bin/workstation-duplicity b/bin/workstation-duplicity
index d40681c3..c227f6ea 100755
--- a/bin/workstation-duplicity
+++ b/bin/workstation-duplicity
@@ -46,6 +46,7 @@ if ! [ -t 1 ]; then
    fi
 fi
 
+set +e
 if [ -e "$FLAG_FILE" ]; then
     # attempt an incremental backup -- always incremental since we
     # might be running from a cronjob on weak coffee shop WiFi
@@ -58,10 +59,25 @@ else
     # case files need to be restored
     duply $DUPLY_PROFILE full
 fi
+exit=$?
+set -e
 
-# if it was successful, update flag file so cronjob doesn't do this
-# again for four hours
-touch $FLAG_FILE
-
-notify-send --urgency=low --icon=package_network \
-	    "duplicity incremental backup @ $(date '+%-l:%M%#p %Z')" ||:
+if [ $exit = 0 ]; then
+    if [ -e "$FLAG_FILE" ]; then
+	type="incremental"
+    else
+	type="full"
+    fi
+    notify-send --urgency=low --icon=package_network \
+	    "duplicity $type backup @ $(date '+%-l:%M%#p %Z')" ||:
+    # update flag file so cronjob doesn't do this again for four hours
+    touch $FLAG_FILE
+else
+    if nc -w1 -q0 ch-s012.rsync.net 22 </dev/null; then
+	msg="Looks like SSH to backup host is possible."
+    else
+	msg="We're online, but couldn't SSH to the backup host."
+    fi
+    notify-send --urgency=critical --icon=dialog-warning \
+	    "duplicity could not connect" "$msg" ||:
+fi
-- 
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