a working version

burpcheck.sh

@@ -3,11 +3,17 @@
 set -eu -o pipefail
 
 burpconf=/etc/burp/burp.conf
-numFiles=10
+numFiles=2
 restoreFolder=/tmp/test_restauration
 
 IFS=$(echo -ne '\b\n')
 
+if [ $# -gt 0 ] ; then
+   cmdLine="-C $1"
+fi
+
+
+
 function _getRandomBurpFolders {
    folderList=$(awk -F " = " '/^include/{ print $2}'  $burpconf)
    echo $folderList | sort --random-sort | tail -n 1
@@ -17,19 +23,41 @@ function _getRandomBackup {
    burp -a l | awk '{ print $2}' | sort --random-sort | tail -n 1
 }
 
+function _cacheStale {
+# 1 if given file older than 1 week
+# 0 otherwhise
+  # file age in seconds = current_time - file_modification_time.
+  test -f $1 || return 2
+  fileage=$(($(date +%s) - $(stat -c '%Y' "$1")))
+  limit=$((7*24*3600))
+  diff=$((fileage-$limit ))
+  if [ $diff -lt 0 ] ; then return 0 ; else return 1 ; fi
+}
+
 function _getRandomFile {
   f=$(_getRandomBurpFolders )
+  #f=/home/tom/Documents/Opendoor/Developpement/Scripts/Backups/BurpCheck/Test
   test -d "${f}" || { echo  "error opening $f" ; exit 1 ; }
-  find $f -type f | sort --random-sort | tail -n ${numFiles}
+  cacheFile=/tmp/burp_cache_$(echo $f | md5sum | cut -f1 -d ' ')
+  if ( $(_cacheStale "$cacheFile" )) ; then
+    readarray -d '' files < <(shuf -z $cacheFile)
+   else
+      readarray -d '' files < <(find $f -type f -print0 | shuf -z | tee $cacheFile)
+   fi
 }
 
+
 backup=$(_getRandomBackup)
 
-files=$(_getRandomFile )
+_getRandomFile
 
-for file in $files ; do
-   echo "Trying to restore ${file} from backup #${backup}"
+c=0
+for file in "$files" ; do
+   let "c+=1"
+   echo "$file" | grep -q .git && break
+   echo "Trying to restore '${file}' from backup #${backup}"
    burp -a r -b ${backup} -r "${file}" -d ${restoreFolder}
+   test $c -eq $numFiles || continue
 done
 
 exit $?