explane algorythm

add const
set structure

tools/db/update-file-state

@@ -0,0 +1,131 @@
+#!/bin/bash
+# @author 6543
+# @version 0.1
+# @date 2019-02-07
+
+## Options/Parameter
+# [$1]: <path to movie folder>
+
+{ #set enviroemnt
+  readonly TRUE=1      #like <stdbool.h>
+  readonly FALSE=0     #like <stdbool.h>
+  readonly TTSYNC_EXIST=0
+  readonly TTSYNC_BACKUP=1
+  readonly TTSYNC_REMOTE=2
+  readonly TTSYNC_DEL=3
+  readonly globalconf="/etc/tt/global"
+}
+
+{ #get options & args
+  readonly mode=$(echo $1 | tr -d '-')
+  moviedir="$1"
+}
+
+{ #db
+  dbname="tt_test"
+  dbhost="localhost"
+  dbuser="root"
+  dbpwd=""
+}
+
+function help() {
+  #help menue
+  echo "$0 is part of the TerabyteTerminator Project"
+  echo ""
+  echo "update-file-state [moviedir]"
+  echo "  moviedir: Is optional if it is already in the global config"
+
+  exit 0
+}
+[ "$mode" == "help" ] && help
+
+###########################
+## Programm Haupt Ablauf ##
+###########################
+function main() {
+  #cd to moviedir
+  cd "$moviedir"
+
+  ## dateiliste erstellen die mit DB abgeglichen wird
+
+  ## Für alle existierenden Dateien:
+  ## * Path=DB.PATH && TTSync == TTSYNC_DEL
+  ##    -> DB.Size != 0 && Size == DB.Size -> TTSYNC_DEL -> TTSYNC_EXIST // >>file_undel<< konsider other state ?!?
+  ##    -> DB.Size != 0 || Size != DB.Size -> compare if md5 is same
+  ##         -> Ja -> TTSYNC_DEL -> TTSYNC_EXIST // >>file_undel<<
+  ##         -> NA -> delete DB Entry
+  ## * Path=DB.PATH && TTSync == TTSYNC_EXIST / TTSYNC_BACKUP
+  ##    -> DB.Size = 0 -> file_add_size
+  ##    -> Size != DB.Size -> compare if md5 is same
+  ##         -> Ja -> update file size (file_add_size)
+  ##         -> NA
+  ##            -> makr DB.FID = TTSYNC_DEL
+  ##            -> file_add  // this is a new file
+  ## * Path=DB.PATH && TTSync == TTSYNC_REMOTE
+  ##    -> DB.Size = 0 ->  compare if md5 is same
+  ##         -> Ja
+  ##            -> update file size (file_add_size)
+  ##            -> TTSYNC_REMOTE to TTSYNC_BACKUP
+  ##         -> NA
+  ##    -> Size = DB.Size TTSYNC_REMOTE to TTSYNC_BACKUP
+  ##    -> Size != DB.Size  // Error Remote CP incorect!!!
+
+ ## alle nicht gecheckten path einträge in DB (fiels die nicht existieren)
+ ## A: HDD kaput
+ ## B: Absichtlich gelöscht
+ ## hdd_check // ob eine HDD defekt ist bzw das mounten irgendwo fehlgeschlagen ist
+ ## -> ja -> error mesage!
+ ## -> na -> set DB.FID TTSYNC_DEL
+
+}
+
+###########################
+## help functions #########
+###########################
+
+##check & prepair args
+[ -z "$moviedir" ] && [ -f "$globalconf" ] && {					# if (no argument) and (globalconf exist)
+  if [ -z "$(grep "moviedir=" "$globalconf" )" ]; then			# and (moviedir is NOT in globalconf)
+    echo 'neither "movie folder" is set in global config nor given as argument'
+    exit 2
+  else															# and (moviedir is in globalconf)
+    moviedir="$(grep "moviedir=" "$globalconf" | cut -d '=' -f 2)"
+  fi
+}
+[ -d "$moviedir" ] || { echo "moviedir \"$moviedir\" do not exist"; exit 3; } # check moviedir
+moviedir=""$(echo $moviedir | sed 's|/$||g')""
+[ -z "$moviedir" ] && exit 255 #catch case moviedir="/"
+
+function md5_out_exist() {
+  db_query "SELECT CONCAT(MD5, ' ', ' ' ,'$moviedir/', Folder, '/', Name) FROM File WHERE TTSync=$TTSYNC_EXIST OR TTSync=$TTSYNC_BACKUP;" >> $md5list
+  exit 0
+}
+
+function md5_out_del() {
+  db_query "SELECT CONCAT(MD5, ' ', ' ' ,'$moviedir/', Folder, '/', Name) FROM File WHERE TTSync=$TTSYNC_DEL;" >> $md5list
+  exit 0
+}
+
+# file_size <path> -> (du -b)/1024  [Kb]
+function file_size() {
+  echo $(($(du -b "$1" | cut -f 1)/1024))
+}
+
+# db_query <query> -> result
+function db_query() {
+  local args="-sN"  #no headers, no grid
+  args+=" -h$dbhost"
+  args+=" -u$dbuser"
+  [ -n "$dbpwd" ] && args+=" -p$dbpwd"
+  args+=" $dbname"
+  echo $@ | mysql $args
+}
+
+# db_F-ID_getPath <F-ID> -> <Path>
+function db_id_getPath() {
+  db_query "SELECT CONCAT('$moviedir/', Folder, '/', Name) FROM File WHERE ID=$1;"
+}
+
+
+
+main #aufruf der main function (eig. programmstart)