From 650e402d9069126720c629be1dda9e77bdc80e6b Mon Sep 17 00:00:00 2001
From: David Runge <dave@sleepmap.de>
Date: Tue, 27 Oct 2015 00:15:04 +0100
Subject: bin/crypted-backups: Adding function to cleanup backups older than
 pre-defined number of days.

---
 bin/crypted-backups | 27 ++++++++++++++++++++++++---
 1 file changed, 24 insertions(+), 3 deletions(-)

diff --git a/bin/crypted-backups b/bin/crypted-backups
index 3019c7e..d96ad36 100755
--- a/bin/crypted-backups
+++ b/bin/crypted-backups
@@ -10,6 +10,7 @@ else
 fi
 user_mode=""
 source_mode=""
+cleanup_mode=0
 verbose=0
 
 function notification_source_to_destination () {
@@ -53,6 +54,17 @@ function sanitize_pathname () {
   fi
 }
 
+function check_cleanup_settings () {
+  [ $verbose -gt 0 ] && echo "Checking cleanup settings."
+  if ![[ $cleanup_older_than =~ '^[0-9]+$' ]];then
+    echo "Error! \"cleanup_older_than\" is not an integer: $cleanup_older_than."
+    return 1
+  elif [ ${#cleanup_directory} -eq 0 ];then
+    echo "Error! \"cleanup_directory\" is not set!"
+    return 1
+  fi
+}
+
 function check_gpg_set () {
   [ $verbose -gt 0 ] && echo "Checking, if \"gpg_public_key\" is set."
   if [ -z "$gpg_public_key" ];then
@@ -333,15 +345,22 @@ function set_user_mode () {
   return 0
 }
 
+function cleanup_backup () {
+  local cleanup_directory=$(sanitize_pathname $cleanup_directory)
+  check_cleanup_settings
+  "check_"$user_mode"_directory" $cleanup_directory
+  [ $verbose -gt 0 ] && echo "Cleaning up $cleanup_directory by removing files older than $cleanup_older_than days."
+  find $cleanup_directory -type f -atime +$cleanup_older_than -print -exec rm {} \;
+  return 0
+}
+
 function print_help () {
   echo "help"
   exit 0
 }
 
-#TODO: Add function to cleanup backups
 #TODO: Add function to mirror backups
 #TODO: Add function to automatically add key to keyring, if not found
-#TODO: Add verbose flag
 
 
 check_gpg_set
@@ -351,7 +370,7 @@ if [ ${#@} -gt 0 ]; then
   while getopts 'c:hr:s:v' flag; do
     case "${flag}" in
       c)
-        echo "Cleanup"
+        cleanup_mode=1
         ;;
       h)
         print_help
@@ -424,6 +443,8 @@ if [ -n "$source_mode" ];then
       echo "Error. $source_mode is not a valid backup option."
       exit 1
   esac
+elif [ $cleanup_mode -eq 1 ];then
+  cleanup_backup
 fi
 
 exit 0
-- 
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