From 232f988e343c9824193d3a2b9121e6f2b5d1f43d Mon Sep 17 00:00:00 2001
From: Per Jensen <per2jensen@gmail.com>
Date: Fri, 9 Aug 2024 16:02:55 +0200
Subject: [PATCH] cleanup use PREREQ and systemd examples

---
 v2/README.md                | 51 +++++++++++++++++++++++++++++++++++++
 v2/dar_backup/cleanup.py    | 19 +++++++++++++-
 v2/dar_backup/dar_backup.py |  2 +-
 3 files changed, 70 insertions(+), 2 deletions(-)

diff --git a/v2/README.md b/v2/README.md
index b598abe..4ce69cc 100644
--- a/v2/README.md
+++ b/v2/README.md
@@ -332,6 +332,57 @@ verbose:
 #  -va
 ````
 
+# Systemctl examples
+I have dar-backup scheduled to run via systemd --user settings.
+
+The files are located in: ~/.config/systemd/user
+
+Once the .service and .timer files are in place, timers must be enabled and started.
+
+````
+systemctl --user enable dar-inc-backup.timer
+systemctl --user start  dar-inc-backup.timer
+systemctl --user daemon-reload
+````
+
+Verify your timers are set up as you want:
+
+````
+systemctl --user list-timers
+````
+
+
+## Service: dar-back --incremental-backup
+
+File:  dar-inc-backup.service
+````
+[Unit]
+Description=dar-backup INC
+StartLimitIntervalSec=120
+StartLimitBurst=1
+[Service]
+Type=oneshot
+TimeoutSec=infinity
+RemainAfterExit=no
+ExecStart=/bin/bash -c '. /home/user/programmer/dar-backup.py/venv/bin/activate && dar-backup --incremental-backup --verbose'
+````
+
+## Timer: dar-back --incremental-backup
+
+File:  dar-inc-backup.timer
+````
+[Unit]
+Description=dar-backup INC timer
+
+[Timer]
+OnCalendar=*-*-04/3 19:03:00
+Persistent=true
+
+[Install]
+WantedBy=timers.target
+````
+
+
 # list contents of an archive
 ```
 . <the virtual evn>/bin/activate
diff --git a/v2/dar_backup/cleanup.py b/v2/dar_backup/cleanup.py
index d098a8e..43d2183 100644
--- a/v2/dar_backup/cleanup.py
+++ b/v2/dar_backup/cleanup.py
@@ -18,6 +18,7 @@
 import logging
 import os
 import re
+import subprocess
 import sys
 
 from datetime import datetime, timedelta
@@ -158,6 +159,22 @@ def main():
     args.verbose and (print(f"--cleanup-specific-archive:  {args.cleanup_specific_archive}"))
 
 
+    # run PREREQ scripts
+    if 'PREREQ' in config_settings.config:
+        for key in sorted(config_settings.config['PREREQ'].keys()):
+            script = config_settings.config['PREREQ'][key]
+            try:
+                result = subprocess.run(script, shell=True, check=True)
+                logger.info(f"PREREQ {key}: '{script}' run, return code: {result.returncode}")
+                logger.info(f"PREREQ stdout:\n{result.stdout}")
+            except subprocess.CalledProcessError as e:
+                logger.error(f"Error executing {key}: '{script}': {e}")
+                if result:
+                    logger.error(f"PREREQ stderr:\n{result.stderr}")
+                print(f"Error executing {script}: {e}") 
+                sys.exit(1)
+
+
     if args.alternate_archive_dir:
         config_settings.backup_dir = args.alternate_archive_dir
 
@@ -187,7 +204,7 @@ def main():
     if len(error_lines) > 0:
         args.verbose and print("\033[1m\033[31mErrors\033[0m encountered")
         for line in error_lines:
-            print(line)
+            args.verbose and print(line)
         sys.exit(1)
     else:
         args.verbose and print("\033[1m\033[32mSUCCESS\033[0m No errors encountered")
diff --git a/v2/dar_backup/dar_backup.py b/v2/dar_backup/dar_backup.py
index 2b6d37a..580b2e3 100644
--- a/v2/dar_backup/dar_backup.py
+++ b/v2/dar_backup/dar_backup.py
@@ -660,7 +660,7 @@ def main():
     if len(error_lines) > 0:
         args.verbose and print("\033[1m\033[31mErrors\033[0m encountered")
         for line in error_lines:
-            print(line)
+            args.verbose and print(line)
         sys.exit(1)
     else:
         args.verbose and print("\033[1m\033[32mSUCCESS\033[0m No errors encountered")