Index: test/logs_rotation.sh
===================================================================
diff -u
--- test/logs_rotation.sh	(revision 0)
+++ test/logs_rotation.sh	(revision 01436dda9dce9b0f6911e65f9d9f1eb68473eaad)
@@ -0,0 +1,351 @@
+#!/bin/sh
+
+# ---------- constants ----------
+
+PRINTF_SAME_LINE=1
+
+LOG_FILE_SIZE_MB="bs=1024 count=10k"
+LOG_FILE_SIZE_KB="bs=1024 count=100"
+
+PARTITION_SDCARD="/media/sd-card"
+PARTITION_CONFIG="/var/configurations"
+
+OPT_HELP="-h"
+OPT_TYPE="-t"
+OPT_YEAR="-y"
+OPT_PCNT="-%"
+
+LOG_DAY_MIN=1
+LOG_DAY_MAX=28
+
+LOG_MONTH_MIN=1
+LOG_MONTH_MAX=12
+
+LOG_YEAR_MIN=2000
+LOG_YEAR_MAX=$(date +%Y)
+
+CUR_YEAR_MAX=$LOG_YEAR_MAX
+CUR_MONTH_MAX=$(date +%m)
+CUR_DAY_MAX=$(date +%d)
+CUR_HOUR="00"
+CUR_MINUTE="00"
+
+LOG_PCNT_MIN=5
+LOG_PCNT_MAX=95
+
+LOG_TYPE_SIZE_LOG=$LOG_FILE_SIZE_MB
+LOG_TYPE_NAME_LOG="log"
+LOG_TYPE_PART_LOG=$PARTITION_SDCARD
+LOG_TYPE_PATH_LOG="log"
+LOG_TYPE_EXTN_LOG="log"
+LOG_TYPE_EXTR_LOG=""
+LOG_TYPE_PCNT_LOG=85
+
+LOG_TYPE_SIZE_ERR=$LOG_FILE_SIZE_MB
+LOG_TYPE_NAME_ERR="service"
+LOG_TYPE_PART_ERR=$PARTITION_SDCARD
+LOG_TYPE_PATH_ERR="service"
+LOG_TYPE_EXTN_ERR="err"
+LOG_TYPE_EXTR_ERR=""
+LOG_TYPE_PCNT_ERR=85
+
+LOG_TYPE_SIZE_CLD=$LOG_FILE_SIZE_MB
+LOG_TYPE_NAME_CLD="cloudsync"
+LOG_TYPE_PART_CLD=$PARTITION_SDCARD
+LOG_TYPE_PATH_CLD="cloudsync/log"
+LOG_TYPE_EXTN_CLD="log"
+LOG_TYPE_EXTR_CLD=""
+LOG_TYPE_PCNT_CLD=85
+
+LOG_TYPE_SIZE_TXR=$LOG_FILE_SIZE_KB
+LOG_TYPE_NAME_TXR="treatment"
+LOG_TYPE_PART_TXR=$PARTITION_CONFIG
+LOG_TYPE_PATH_TXR="treatment"
+LOG_TYPE_EXTN_TXR="txr"
+LOG_TYPE_EXTR_TXR=".p"
+LOG_TYPE_PCNT_TXR=70
+
+# ---------- variables ----------
+paramlist="$@"
+
+part_size=0
+part_free_s=0
+part_used_s=0
+part_free_p=0
+part_used_p=0
+
+path_used_s=0
+path_used_p=0
+path_free_p=0
+
+logs_used_p=0
+logs_free_p=0
+
+
+log_year=$LOG_YEAR_MIN
+log_size=""
+log_type=""
+log_partition=""
+log_folder=""
+log_extension=""
+log_extension_extra=""
+
+cur_day=0
+cur_month=$LOG_MONTH_MIN
+cur_year=$LOG_YEAR_MIN
+cur_hour=$CUR_HOUR
+cur_minute=$CUR_MINUTE
+cur_timestamp=""
+cur_fullName=""
+cur_fullPathName=""
+cur_counter=0
+cur_doGenerate=1
+
+cur_DD=""
+cur_MM=""
+cur_YY=""
+
+
+# ---------- functions ----------
+function error() {
+  echo "ERROR: $1"
+  exit 1
+}
+
+function isNumeric() {
+  [[ $1 =~ ^[0-9]+$ ]] && return 0 || return 1
+}
+
+function addLeadingZero() {
+  if (( $1 < 10 )); then
+    echo "0$1"
+  else 
+    echo "$1"
+  fi
+}
+
+function displayHelp() {
+  local format="%s %-15s %s %s\n"
+  echo
+  echo "$0 [-h | options]"
+  echo " -h    display the current help"
+  echo " $OPT_TYPE log type to test"
+  echo " $OPT_YEAR starting year of the file creation date"
+  echo " $OPT_PCNT the optional max percentage of the partition to fill"
+  echo
+  echo "Usage example"
+  printf "$format" "$0" "$OPT_TYPE$LOG_TYPE_NAME_LOG" "[-y2000]" "[-%85]"
+  printf "$format" "$0" "$OPT_TYPE$LOG_TYPE_NAME_ERR" "[-y2000]" "[-%85]"
+  printf "$format" "$0" "$OPT_TYPE$LOG_TYPE_NAME_CLD" "[-y2000]" "[-%85]"
+  printf "$format" "$0" "$OPT_TYPE$LOG_TYPE_NAME_TXR" "[-y2000]" "[-%30]"
+  
+  exit 0
+}
+
+function checkParams() {
+  # check $1
+  for param in $paramlist; do
+    case "$param" in
+      $OPT_TYPE$LOG_TYPE_NAME_LOG)
+        log_type=$LOG_TYPE_NAME_LOG
+        log_size=$LOG_TYPE_SIZE_LOG
+        log_partition=$LOG_TYPE_PART_LOG
+        log_folder=$LOG_TYPE_PATH_LOG
+        log_extension=$LOG_TYPE_EXTN_LOG
+        log_extension_extra=$LOG_TYPE_EXTR_LOG
+        logs_used_p=$LOG_TYPE_PCNT_LOG
+      ;;
+      
+      $OPT_TYPE$LOG_TYPE_NAME_ERR)
+        log_type=$LOG_TYPE_NAME_ERR
+        log_size=$LOG_TYPE_SIZE_ERR
+        log_partition=$LOG_TYPE_PART_ERR
+        log_folder=$LOG_TYPE_PATH_ERR
+        log_extension=$LOG_TYPE_EXTN_ERR
+        log_extension_extra=$LOG_TYPE_EXTR_ERR
+        logs_used_p=$LOG_TYPE_PCNT_ERR
+      ;;
+      
+      $OPT_TYPE$LOG_TYPE_NAME_CLD)
+        log_type=$LOG_TYPE_NAME_CLD
+        log_size=$LOG_TYPE_SIZE_CLD
+        log_partition=$LOG_TYPE_PART_CLD
+        log_folder=$LOG_TYPE_PATH_CLD
+        log_extension=$LOG_TYPE_EXTN_CLD
+        log_extension_extra=$LOG_TYPE_EXTR_CLD
+        logs_used_p=$LOG_TYPE_PCNT_CLD
+      ;;
+      
+      $OPT_TYPE$LOG_TYPE_NAME_TXR)
+        log_type=$LOG_TYPE_NAME_TXR
+        log_size=$LOG_TYPE_SIZE_TXR
+        log_partition=$LOG_TYPE_PART_TXR
+        log_folder=$LOG_TYPE_PATH_TXR
+        log_extension=$LOG_TYPE_EXTN_TXR
+        log_extension_extra=$LOG_TYPE_EXTR_TXR
+        logs_used_p=$LOG_TYPE_PCNT_TXR
+      ;;
+      
+      $OPT_PCNT*)
+        logs_used_p="$param"
+        logs_used_p="${logs_used_p:${#OPT_PCNT}}"
+      ;;
+      
+      $OPT_YEAR*)
+        log_year="$param"
+        log_year="${log_year:${#OPT_YEAR}}"
+      ;;
+
+      $OPT_HELP)
+        displayHelp
+      ;;
+ 
+      *)
+        error "invalid option '$param'"
+      ;;
+    esac
+  done
+
+  # check the type
+  if [ -z $log_type ]; then
+    error "log type is missing"
+  fi
+
+  # check year
+  if ! isNumeric $log_year; then
+    error "invalid log start year: '$log_year'"
+  fi
+
+  if (( $log_year < $LOG_YEAR_MIN || $LOG_YEAR_MAX < $log_year )); then
+    error "invalid log year range: '$log_year' [$LOG_YEAR_MIN, $LOG_YEAR_MAX]"
+  fi
+  cur_year=$log_year
+
+  # check percent
+  if ! isNumeric $logs_used_p; then
+    error "invalid log fill usage percent: '$log_year'"
+  fi
+  logs_free_p=$(( 100 - $logs_used_p ))
+
+  if (( $logs_used_p < $LOG_PCNT_MIN || $LOG_PCNT_MAX < $logs_used_p )); then
+    error "invalid log fill usage percent range: '$logs_used_p' [$LOG_PCNT_MIN, $LOG_PCNT_MAX]"
+  fi
+
+  echo "log type '$log_type'"
+  echo "location '$log_partition/$log_folder'"
+  echo "start year from '$log_year'"
+  echo "stops at '$logs_used_p%' total percent used"
+}
+
+function incDate() {
+  cur_day=$(( $cur_day + 1 ))
+  if (( $cur_day > $LOG_DAY_MAX )); then
+    cur_day=$LOG_DAY_MIN
+    cur_month=$(( $cur_month + 1 ))
+  fi
+
+  if (( $cur_month > $LOG_MONTH_MAX )); then    
+    cur_month=$LOG_MONTH_MIN
+    cur_year=$(( $cur_year + 1 ))
+  fi
+  
+  # if (( $cur_year >= $LOG_YEAR_MAX )); then
+  #   #TODO: the fact that we can pass today date is not checked  
+  # fi
+
+  
+  cur_DD=$(addLeadingZero $cur_day)
+  cur_MM=$(addLeadingZero $cur_month)
+  cur_YY="$cur_year"
+}
+
+#    1              2         3      4      5       6 
+#Filesystem     1K-blocks   Used Available Use% Mounted on
+#/dev/mmcblk1p1  15247276 591392  13861644   5% /media/sd-card
+function getPartitionSize() {
+  part_size=$(df $log_partition | awk 'NR==2 {print $2}')
+}
+
+function getSpacePercents() {
+  part_used_s=$(df $log_partition | awk 'NR==2 {print $3}')
+  part_free_s=$(df $log_partition | awk 'NR==2 {print $4}')
+  part_used_p=$(df $log_partition | awk 'NR==2 {print $5}')
+ #part_used_p=$(( $part_used_s * 100 / $part_size )) # this percentage cannot be calculated from df and it is not accurate.
+  part_free_p=$(( $part_free_s * 100 / $part_size ))
+  
+  path_used_s=$(du $log_partition/$log_folder 2>/dev/null | cut -f1)
+  path_used_p=$(( $path_used_s * 100 / $part_size ))
+  path_free_p=$(( 100 - $path_used_p ))
+}
+
+function generateLog() {
+  dd if=/dev/urandom of="$cur_fullPathName" $log_size status=none
+  touch -t $log_timestamp $cur_fullPathName
+}
+
+function printStatus() {
+  local format="| %-10s | %-50s | Used:%5s | Total Used:%5s |\n"
+  local message=""
+  if (( cur_doGenerate == 0 )); then
+    message=" ~ $log_type log generation stoped [CTRL+C to exit] ~ "
+  else
+    message=$cur_fullPathName
+  fi
+  
+  if (( $PRINTF_SAME_LINE == 1 )); then
+    format="\r| %-10s | %-50s | Used:%5s | Total Used:%5s |"
+  fi
+  
+  printf "$format" \
+        "$cur_counter" "$message" "$path_used_p%" "$part_used_p"
+}
+
+function setTimestamp() {
+  log_timestamp="$cur_YY$cur_MM$cur_DD$cur_hour$cur_minute"
+}
+
+function setFullPathName() {
+  local extra=""
+  if (( $cur_counter % 2 == 0 )); then
+    extra="$log_extension_extra"
+  fi
+  cur_fullName="$cur_YY-$cur_MM-$cur_DD.$log_extension$extra"
+  cur_fullPathName="$log_partition/$log_folder/$cur_fullName"
+}
+
+function generate() {
+  
+  getPartitionSize
+  
+  while true; do
+    getSpacePercents
+    
+    if (( $cur_doGenerate == 1 )); then
+      if (( $part_free_p < $logs_free_p ));then
+        cur_doGenerate=0
+        echo
+      fi
+    fi
+  
+    if (( $cur_doGenerate == 0 )); then
+      printStatus
+    else
+      cur_counter=$(( cur_counter + 1 ))
+      incDate
+      setTimestamp
+      setFullPathName
+      generateLog
+      printStatus      
+    fi
+  done
+  echo "Done total files added $cur_counter"
+}
+
+function main() {
+  checkParams "$@"
+  generate    "$@"
+}
+
+# start the script
+main "$@"
+