From 4bf0b1d600c1e8d5be4fb6f09d8ad38f3c3ed279 Mon Sep 17 00:00:00 2001
From: Darren 'Tadgy' Austin <darren@afterdark.org.uk>
Date: Sun, 29 Oct 2023 19:47:52 +0000
Subject: [PATCH] Add do-sbosrcarch script.

---
 do-sbosrcarch | 87 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 87 insertions(+)
 create mode 100755 do-sbosrcarch

diff --git a/do-sbosrcarch b/do-sbosrcarch
new file mode 100755
index 0000000..1cbaf88
--- /dev/null
+++ b/do-sbosrcarch
@@ -0,0 +1,87 @@
+#!/bin/bash
+# Version: 0.1.0
+# Copyright (c) 2023:
+#   Darren 'Tadgy' Austin <darren (at) afterdark.org.uk>
+# Licensed under the terms of the GNU General Public License version 3.
+#
+# Wrapper around /opt/bin/sbosrcarch to keep a log of the session, and email it.
+
+# Configuration.
+COMMAND="/opt/bin/sbosrcarch"
+LOGSDIR="/var/log/mirroring/$(printf "%(%Y/%m)T")"
+LOGFILE="$(printf "%(%Y%m%d-%H%M%S)T")-sbosrcharch-$$"
+
+# Only allow one copy of the script to run at any time.
+# shellcheck disable=SC2154
+if [[ "$FLOCK" != "$0" ]]; then
+  # shellcheck disable=SC2093
+  exec env FLOCK="$0" flock -E 10 -e -n "$0" "$0" "$@"
+  ERR="$?"
+  if (( ERR == 10 )); then
+    # File is locked, exit now.
+    exit 0
+  elif (( ERR > 0 )); then
+    printf "%s: %s\\n" "${0##*/}" "flock execution error" >&2
+    exit 1
+  fi
+fi
+
+# Source the mail configuration.
+source /etc/mail.conf "sbosrcarch" 2>/dev/null || {
+  printf "%s: %s\\n" "${0##*/}" "Failed to source /etc/mail.conf" >&2
+  exit 1
+}
+
+# Make sure the logs directory exists.
+mkdir -p "$LOGSDIR" 2>/dev/null || {
+  printf "%s: %s\\n" "${0##*/}" "Failed to create logs directory" >&2
+  exit 1
+}
+
+# Make sure the command to do the work is runnable.
+[[ ! -x "$COMMAND" ]] && {
+  printf "%s: '%s' %s\\n" "${0##*/}" "$COMMAND" "is not executable" >&2
+  exit 1
+}
+
+# Do the sbosrcarch work.
+"$COMMAND" "${@:-update}" >"$LOGSDIR/$LOGFILE" 2>&1
+ERR="$?"
+printf "\\n" >>"$LOGSDIR/$LOGFILE"
+"$COMMAND" "status" >>"$LOGSDIR/$LOGFILE" 2>&1
+
+# Tell the sysadmin what went on.
+if (( "$ERR" == 0 )); then
+  if [[ -n "${EMAIL_TO[*]}" ]]; then
+    mailx "${MAILX_ARGS[@]}" -S "from='$EMAIL_FROM'" -s "SBosrcarch report" "${EMAIL_TO[@]}" <<-EOF 2>/dev/null || \
+        printf "%s: %s\\n" "${0##*/}" "mailx command failed" >&2
+		Exit code: $ERR
+		Logfile: $LOGSDIR/$LOGFILE.gz
+		Output:
+		$(< "$LOGSDIR/$LOGFILE")
+		EOF
+  else
+    printf "%s: %s\\n" "${0##*/}" "no recipient configured for mail delivery" >&2
+    RET=1
+  fi
+else
+  # Updating failed, tell the admin.
+  [[ -x "/opt/bin/pushover" ]] && CONFIG_FILE="mirroring" /opt/bin/pushover -T "SBosrcarch" -p '-1' -m "SBosrcarch failed"
+  if [[ -n "${EMAIL_TO[*]}" ]]; then
+    mailx "${MAILX_ARGS[@]}" -S "from='$EMAIL_FROM'" -s "SBosrcarch failure" "${EMAIL_TO[@]}" <<-EOF 2>/dev/null || \
+        printf "%s: %s\\n" "${0##*/}" "mailx command failed" >&2
+		Exit code: $ERR
+		Logfile: $LOGSDIR/$LOGFILE.gz
+		Output:
+		$(< "$LOGSDIR/$LOGFILE")
+		EOF
+  else
+    printf "%s: %s\\n" "${0##*/}" "no recipient configured for mail delivery" >&2
+    RET=1
+  fi
+fi
+
+# Compress the log to save some space.
+gzip -9 "$LOGSDIR/$LOGFILE" 2>/dev/null || { printf "%s: %s '%s'\\n" "${0##*/}" "failed to compress" "$LOGSDIR/$LOGFILE" >&2; RET=1; }
+
+exit "${RET:-0}"