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################################################################################
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# AMiRo-Apps is a collection of applications for the Autonomous Mini Robot     #
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# (AMiRo) platform.                                                            #
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# Copyright (C) 2018..2018  Thomas Schöpping et al.                            #
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#                                                                              #
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# This program is free software: you can redistribute it and/or modify         #
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# it under the terms of the GNU General Public License as published by         #
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# the Free Software Foundation, either version 3 of the License, or            #
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# (at your option) any later version.                                          #
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#                                                                              #
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# This program is distributed in the hope that it will be useful,              #
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# but WITHOUT ANY WARRANTY; without even the implied warranty of               #
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the                #
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# GNU General Public License for more details.                                 #
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#                                                                              #
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# You should have received a copy of the GNU General Public License            #
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# along with this program.  If not, see <http://www.gnu.org/licenses/>.        #
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#                                                                              #
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# This research/work was supported by the Cluster of Excellence Cognitive      #
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# Interaction Technology 'CITEC' (EXC 277) at Bielefeld University, which is   #
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# funded by the German Research Foundation (DFG).                              #
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################################################################################
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#!/bin/bash
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################################################################################
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# GENERIC FUNCTIONS                                                            #
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################################################################################
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### print an error message #####################################################
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# Prints a error <message> to standard output.
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#If variable 'LOG_FILE' is specified, the message is also appended to the given file.
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#
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# usage:      printError <message>
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# arguments:  <message>
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#                 Message string to print.
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# return:     n/a
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#
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function printError {
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  local string="ERROR:   $1"
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  # if a log file is specified
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  if [ -n "$LOG_FILE" ]; then
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    printf "[$(date '+%Y-%m-%d %H:%M:%S')] $string" >> $LOG_FILE
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  fi
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  printf "$(tput setaf 1)>>> $string$(tput sgr 0)" 1>&2
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}
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### print a warning message ####################################################
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# Prints a warning <message> to standard output.
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#If variable 'LOG_FILE' is specified, the message is also appended to the given file.
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#
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# usage:      printMessage <message>
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# arguments:  <message>
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#                 Message string to print.
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# return:     n/a
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#
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function printWarning {
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  local string="WARNING: $1"
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  # if a log file is specified
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  if [ -n "$LOG_FILE" ]; then
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    printf "[$(date '+%Y-%m-%d %H:%M:%S')] $string" >> $LOG_FILE
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  fi
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  printf "$(tput setaf 3)>>> $string$(tput sgr 0)"
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}
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### print an information message ###############################################
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# Prints an information <message> to standard output.
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#If variable 'LOG_FILE' is specified, the message is also appended to the given file.
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#
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# usage:      printInfo <message>
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# arguments:  <message>
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#                 Message string to print.
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# return:     n/a
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#
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function printInfo {
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  local string="INFO:    $1"
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  # if a log file is specified
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  if [ -n "$LOG_FILE" ]; then
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    printf "[$(date '+%Y-%m-%d %H:%M:%S')] $string" >> $LOG_FILE
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  fi
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  printf "$(tput setaf 2)>>> $string$(tput sgr 0)"
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}
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### print a message to file ####################################################
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# Appends a <message> to a log file, specified by the variable 'LOG_FILE'.
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#
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# usage       printLog <message>
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# arguments:  <message>
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#                 Message string to print.
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# return:     n/a
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#
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function printLog {
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  local string="LOG:     $1"
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  # if a log file is specified
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  if [ -n "$LOG_FILE" ]; then
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    printf "[$(date '+%Y-%m-%d %H:%M:%S')] $string" >> $LOG_FILE
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  fi
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}
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### exit the script normally ###################################################
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# Prints a delimiter and exits the script normally (returns 0).
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#
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# usage:      quitScript
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# arguments:  n/a
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# return:     0
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#                 No error or warning occurred.
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#
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function quitScript {
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  printInfo "exiting $(realpath ${BASH_SOURCE[0]})\n"
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  printf "\n"
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  printf "######################################################################\n"
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  exit 0
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}
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### read a user input ##########################################################
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# Reads a single character user input from a set up <options> and stores it in
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# a given <return> variable.
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#
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# usage:      readUserInput <options> <return>
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# arguments:  <options>
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#                 String definiing the set of valid characters.
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#                 If the string is empty, the user can input any character.
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#             <return>
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#                 Variable to store the selected character to.
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# return:     n/a
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#
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function readUserInput {
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  local input=""
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  # read user input
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  while [ -z $input ] || ( [ -n "$1" ] && [[ ! $input =~ ^[$1]$ ]] ); do
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    read -p "your selection: " -n 1 -e input
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    if [ -z $input ] || ( [ -n "$1" ] && [[ ! $input =~ ^[$1]$ ]] ); then
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      printWarning "[$input] is no valid action\n"
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    fi
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  done
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  printLog "[$input] has been selected\n"
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  eval $2="$input"
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}
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### check whether argument is an option ########################################
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# Checks a <string> whether it is an option.
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# Options are defined to either start with '--' followed by any string, or
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# to start with a single '-' followed by a single character, or
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# to start with a single '-' followed by a single character, a '=' and any string.
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# Examples: '--option', '--option=arg', '-o', '-o=arg', '--'
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#
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# usage:      parseIsOption <string>
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# arguments:  <string>
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#                 A string to check whether it is an option.
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# return:     0
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#                 <string> is an option.
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#             -1
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#                 <string> is not an option.
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#
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function parseIsOption {
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  if [[ "$1" =~ ^-(.$|.=.*) ]] || [[ "$1" =~ ^--.* ]]; then
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    return 0
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  else
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    return -1
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  fi
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}
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### set the log file ###########################################################
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# Sets a specified <infile> as log file and checks whether it already exists.
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# If so, the log may either be appended to the file, its content can be cleared,
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# or no log is generated at all.
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# The resulting path is stored in <outvar>.
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#
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# usage:      setLogFile [--option=<option>] [--quiet] <infile> <outvar>
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# arguments:  --option=<option>
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#                 Select what to do if <file> already exists.
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#                 Possible values are 'a', 'c', 'r' and 'n'.
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#                 - a: append (starts with a separator)
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#                 - c: continue (does not insert a seperator)
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#                 - r: delete and restart
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#                 - n: no log
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#                 If no option is secified but <file> exists, an interactive selection is provided.
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#             --quiet
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#                 Suppress all messages.
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#             <infile>
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#                 Path of the wanted log file.
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#             <outvar>
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#                 Variable to store the path of the log file to.
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# return:     0
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#                 No error or warning occurred.
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#             -1
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#                 Error: invalid input
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#
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function setLogFile {
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  local filepath=""
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  local option=""
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  local quiet=false
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  # parse arguments
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  local otherargs=()
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  while [ $# -gt 0 ]; do
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    if ( parseIsOption $1 ); then
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      case "$1" in
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        -o=*|--option=*)
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          option=${1#*=}; shift 1;;
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        -o*|--option*)
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          option="$2"; shift 2;;
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        -q|--quiet)
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          quiet=true; shift 1;;
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        *)
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          printError "invalid option: $1\n"; shift 1;;
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      esac
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    else
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      otherargs+=("$1")
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      shift 1
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    fi
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  done
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  filepath=$(realpath ${otherargs[0]})
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  # if file already exists
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  if [ -e $filepath ]; then
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    # if no option was specified, ask what to do
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    if [ -z "$option" ]; then
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      printWarning "log file $filepath already esists\n"
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      local userinput=""
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      printf "Select what to do:\n"
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      printf "  [A] - append log\n"
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      printf "  [R] - restart log (delete existing file)\n"
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      printf "  [N] - no log\n"
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      readUserInput "AaRrNn" userinput
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      option=${userinput,,}
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    fi
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    # evaluate option
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    case "$option" in
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      a|c)
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        if [ $quiet = false ]; then
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          printInfo "appending log to $filepath\n"
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        fi
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        if [ $option != c ]; then
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          printf "\n" >> $filepath
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          printf "######################################################################\n" >> $filepath
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          printf "\n" >> $filepath
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        fi
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        ;;
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      r)
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        echo -n "" > $filepath
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        if [ $quiet = false ]; then
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          printInfo "content of $filepath wiped\n"
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        fi
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        ;;
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      n)
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        if [ $quiet = false ]; then
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          printInfo "no log file will be generated\n"
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        fi
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        filepath=""
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        ;;
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      *) # sanity check (return error)
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        printError "unexpected argument: $option\n"; return -1;;
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    esac
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  else
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    if [ $quiet = false ]; then
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      printInfo "log file set to $filepath\n"
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    fi
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  fi
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  eval ${otherargs[1]}="$filepath"
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  return 0
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}
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################################################################################
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# SPECIFIC FUNCTIONS                                                           #
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################################################################################
269

    
270
### print welcome text #########################################################
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# Prints a welcome message to standard out.
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#
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# usage:      printWelcomeText
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# arguments:  n/a
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# return:     n/a
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#
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function printWelcomeText {
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  printf "######################################################################\n"
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  printf "#                                                                    #\n"
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  printf "#                  Welcome to the AMiRo-Apps setup!                  #\n"
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  printf "#                                                                    #\n"
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  printf "######################################################################\n"
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  printf "#                                                                    #\n"
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  printf "# Copyright (c) 2018..2018  Thomas Schöpping                         #\n"
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  printf "#                                                                    #\n"
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  printf "# This is free software; see the source for copying conditions.      #\n"
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  printf "# There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR  #\n"
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  printf "# A PARTICULAR PURPOSE. The development of this software was         #\n"
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  printf "# supported by the Excellence Cluster EXC 227 Cognitive Interaction  #\n"
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  printf "# Technology. The Excellence Cluster EXC 227 is a grant of the       #\n"
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  printf "# Deutsche Forschungsgemeinschaft (DFG) in the context of the German #\n"
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  printf "# Excellence Initiative.                                             #\n"
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  printf "#                                                                    #\n"
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  printf "######################################################################\n"
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}
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297
### print help #################################################################
298
# Prints a help text to standard out.
299
#
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# usage:      printHelp
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# arguments:  n/a
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# return:     n/a
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#
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function printHelp {
305
  printInfo "printing help text\n"
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  printf "usage:    $(basename ${BASH_SOURCE[0]}) [-h|--help] [-i|--init] [-k|--kernel] [-b|--bootloader] [-p|--periphery-LLD] [-m|--middleware] [-c|--compiler] [--IDE] [-q|--quit] [--log=<file>]\n"
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  printf "\n"
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  printf "options:  -h, --help\n"
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  printf "              Print this help text.\n"
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  printf "          -i, --init\n"
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  printf "              Run project initalization.\n"
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  printf "          -o. --os\n"
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  printf "              Enter operating system setup.\n"
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  printf "          -m, --middleware\n"
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  printf "              Enter middleware setup.\n"
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  printf "          -c, --compiler\n"
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  printf "              Enter compiler setup.\n"
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  printf "          --IDE\n"
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  printf "              Enter IDE setup.\n"
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  printf "          -q, --quit\n"
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  printf "              Quit the script.\n"
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  printf "          --log=<file>\n"
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  printf "              Specify a log file.\n"
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}
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### initialize whole project ###################################################
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# Initializes the whole project, including fetching all submodules and so on.
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#
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# usage:      projectInitialization
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# arguments:  n/a
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# return:     n/a
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#
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function projectInitialization {
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  printInfo "initializing project\n"
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  printf "\n"
336
  if [ -z "$LOG_FILE" ]; then
337
    printInfo "Initializing operating system submodule...\n"
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    $(dirname $(realpath ${BASH_SOURCE[0]}))/os/ossetup.sh --init --quit --noinfo
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    printf "\n"
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    printInfo "initializing AMiRo-OS...\n"
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    $(dirname $(realpath ${BASH_SOURCE[0]}))/os/AMiRo-OS/setup.sh --init --quit --noinfo
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    printf "\n"
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344
    printInfo "Initializing middlewre submodule...\n"
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    $(dirname $(realpath ${BASH_SOURCE[0]}))/middleware/middlewaresetup.sh --init --quit --noinfo
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    printf "\n"
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  else
348
    printInfo "Initializing operating system submodule...\n"
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    $(dirname $(realpath ${BASH_SOURCE[0]}))/os/ossetup.sh --init --quit --LOG="$LOG_FILE" --noinfo
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    printf "\n"
351
    printInfo "initializing AMiRo-OS...\n"
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    $(dirname $(realpath ${BASH_SOURCE[0]}))/os/AMiRo-OS/setup.sh --init --quit --LOG="$LOG_FILE" --noinfo
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    printf "\n"
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355
    printInfo "Initializing middlewre submodule...\n"
356
    $(dirname $(realpath ${BASH_SOURCE[0]}))/middleware/middlewaresetup.sh --init --quit --LOG="$LOG_FILE" --noinfo
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    printf "\n"
358
  fi
359
  printInfo "initialization complete\n"
360
}
361

    
362
### enter operating system setup ###############################################
363
# Enter the operating system setup.
364
#
365
# usage:      osSetup
366
# arguments:  n/a
367
# return:     n/a
368
#
369
function osSetup {
370
  printInfo "entering operating system setup\n"
371
  printf "\n"
372
  if [ -z $LOG_FILE ]; then
373
    $(dirname $(realpath ${BASH_SOURCE[0]}))/os/ossetup.sh --noinfo
374
  else
375
    $(dirname $(realpath ${BASH_SOURCE[0]}))/os/ossetup.sh --LOG="$LOG_FILE" --noinfo
376
  fi
377
}
378

    
379
### enter middleware setup #####################################################
380
# Enter the middleware setup.
381
#
382
# usage:      middlewareSetup
383
# arguments:  n/a
384
# return:     n/a
385
#
386
function middlewareSetup {
387
  printInfo "entering middleware setup\n"
388
  printf "\n"
389
  if [ -z $LOG_FILE ]; then
390
    $(dirname $(realpath ${BASH_SOURCE[0]}))/middleware/middlewaresetup.sh --noinfo
391
  else
392
    $(dirname $(realpath ${BASH_SOURCE[0]}))/middleware/middlewaresetup.sh --LOG="$LOG_FILE" --noinfo
393
  fi
394
}
395

    
396
### enter compiler setup #######################################################
397
# Enter the compiler setup of the AMiRo-OS submodule.
398
#
399
# usage:      compilerSetup
400
# arguments:  n/a
401
# return:     0
402
#                 No error or warning occurred.
403
#             1
404
#                 Warning: AMiRo-OS submodule not nitialized yet-
405
#
406
function compilerSetup {
407
  # check if the AMiRo-OS submodule is initialized and the script file exists
408
  local amiroosdir=$(dirname $(realpath ${BASH_SOURCE[0]}))/os/AMiRo-OS
409
  local amiroosscriptfile=${amiroosdir}/setup.sh
410
  if [ -z "$(ls -A $amiroosdir)" ] || [ ! -f $amiroosscriptfile ]; then
411
    printError "$amiroosdir is empty. Please initialize first.\n"
412
    return 1
413
  else
414
    printInfo "entering compiler setup\n"
415
    if [ -z "$LOG_FILE" ]; then
416
      $amiroosscriptfile --compiler --noinfo
417
    else
418
      $amiroosscriptfile --LOG="$LOG_FILE" --compiler --noinfo
419
    fi
420
    return 0
421
  fi
422
}
423

    
424
### enter IDE setup ############################################################
425
# Enter IDE setup.
426
#
427
# usage:      ideSetup
428
# arguments:  n/a
429
# return:     n/a
430
#
431
function ideSetup {
432
  printInfo "entering IDE setup\n"
433
  printf "\n"
434
  if [ -z $LOG_FILE ]; then
435
    $(dirname $(realpath ${BASH_SOURCE[0]}))/tools/ide/idesetup.sh --noinfo
436
  else
437
    $(dirname $(realpath ${BASH_SOURCE[0]}))/tools/ide/idesetup.sh --LOG="$LOG_FILE" --noinfo
438
  fi
439
}
440

    
441
### main function of this script ###############################################
442
# Provides functions for project initialization, configuration of IDE and
443
# compiler setup, as well as entry points to the several Git submodules.
444
#
445
# usage:      see function printHelp
446
# arguments:  see function printHelp
447
# return:     0
448
#                 No error or warning occurred.
449
#
450
function main {
451
  # print welcome/info text if not suppressed
452
  if [[ $@ != *"--noinfo"* ]]; then
453
    printWelcomeText
454
  else
455
    printf "######################################################################\n"
456
  fi
457
  printf "\n"
458

    
459
  # if --help or -h was specified, print the help text and exit
460
  if [[ $@ == *"--help"* || $@ == *"-h"* ]]; then
461
    printHelp
462
    printf "\n"
463
    quitScript
464
  fi
465

    
466
  # set log file if specified
467
  if [[ $@ == *"--log"* ]] || [[ $@ == *"--LOG"* ]]; then
468
    # get the parameter (file name)
469
    local cmdidx=1
470
    while [[ ! "${!cmdidx}" = "--log"* ]] && [[ ! "${!cmdidx}" = "--LOG"* ]]; do
471
      cmdidx=$[cmdidx + 1]
472
    done
473
    local cmd="${!cmdidx}"
474
    local logfile=""
475
    if [[ "$cmd" = "--log="* ]] || [[ "$cmd" = "--LOG="* ]]; then
476
      logfile=${cmd#*=}
477
    else
478
      local filenameidx=$((cmdidx + 1))
479
      logfile="${!filenameidx}"
480
    fi
481
    # optionally force silent appending
482
    if [[ "$cmd" = "--LOG"* ]]; then
483
      setLogFile --option=c --quiet "$logfile" LOG_FILE
484
    else
485
      setLogFile "$logfile" LOG_FILE
486
      printf "\n"
487
    fi
488
  fi
489
  # log script name
490
  printLog "this is $(realpath ${BASH_SOURCE[0]})\n"
491

    
492
  # parse arguments
493
  local otherargs=()
494
  while [ $# -gt 0 ]; do
495
    if ( parseIsOption $1 ); then
496
      case "$1" in
497
        -h|--help) # already handled; ignore
498
          shift 1;;
499
        -i|--init)
500
           projectInitialization; printf "\n"; shift 1;;
501
        -o|--os)
502
           osSetup; printf "\n"; shift 1;;
503
        -m|--middleware)
504
           middlewareSetup; printf "\n"; shift 1;;
505
        -c|--compiler)
506
           compilerSetup; printf "\n"; shift 1;;
507
        --IDE)
508
           ideSetup; printf "\n"; shift 1;;
509
        -q|--quit)
510
          quitScript; shift 1;;
511
        --log=*|--LOG=*) # already handled; ignore
512
          shift 1;;
513
        --log|--LOG) # already handled; ignore
514
          shift 2;;
515
        --noinfo) # already handled; ignore
516
          shift 1;;
517
        *)
518
          printError "invalid option: $1\n"; shift 1;;
519
      esac
520
    else
521
      otherargs+=("$1")
522
      shift 1
523
    fi
524
  done
525

    
526
  # interactive menu
527
  while ( true ); do
528
    # main menu info prompt and selection
529
    printInfo "AMiRo-Apps main menu\n"
530
    printf "Please select one of the following actions:\n"
531
    printf "  [I] - project initialization\n"
532
    printf "  [O] - enter operating system setup\n"
533
    printf "  [M] - enter middleware setup\n"
534
    printf "  [C] - enter compiler setup\n"
535
    printf "  [E] - enter IDE project setup\n"
536
    printf "  [Q] - quit this setup\n"
537
    local userinput=""
538
    readUserInput "IiOoMmCcEeQq" userinput
539
    printf "\n"
540

    
541
    # evaluate user selection
542
    case "$userinput" in
543
      I|i)
544
        projectInitialization; printf "\n";;
545
      O|o)
546
        osSetup; printf "\n";;
547
      M|m)
548
        middlewareSetup; printf "\n";;
549
      C|c)
550
        compilerSetup; printf "\n";;
551
      E|e)
552
        ideSetup; printf "\n";;
553
      Q|q)
554
        quitScript;;
555
      *) # sanity check (exit with error)
556
        printError "unexpected argument: $userinput\n";;
557
    esac
558
  done
559

    
560
  exit 0
561
}
562

    
563
################################################################################
564
# SCRIPT ENTRY POINT                                                           #
565
################################################################################
566

    
567
main "$@"