admin-stuff/update-dehydrated-repos.sh

#!/usr/bin/env bash


script_name="$(basename $(realpath $0))"
working_dir="$(dirname $(realpath $0))"

conf_file="${working_dir}/conf/${script_name%%.*}.conf"

LOCK_DIR="/tmp/$(basename $0).$$.LOCK"
log_file="${LOCK_DIR}/${script_name%%.*}.log"

backup_date="$(date +%Y-%m-%d-%H%M)"
declare -a files_backuped_arr=()
declare -a dirs_backuped_arr=()

# ----------
# Base Function(s)
# ----------

clean_up() {

   # Perform program exit housekeeping
   rm -rf "$LOCK_DIR"
   blank_line
   exit $1
}


echononl(){
   if $terminal ; then
      echo X\\c > /tmp/shprompt$$
      if [ `wc -c /tmp/shprompt$$ | awk '{print $1}'` -eq 1 ]; then
         echo -e -n "   $*\\c" 1>&2
      else
         echo -e -n "   $*" 1>&2
      fi
      rm /tmp/shprompt$$
   fi
}

fatal(){
   echo ""
   if $terminal ; then
      echo -e "   [ \033[31m\033[1mFatal\033[m ] $*"
   else
      echo -e "   [ Fatal ] $*"
   fi
   echo ""
   if $terminal ; then
      echo -e "             \033[1mScript terminated\033[m.."
   else
      echo -e "             Script terminated.."
   fi
   echo ""
   rm -rf $LOCK_DIR
   exit 1
}

error (){
   echo ""
   if $terminal ; then
      echo -e "   [ \033[31m\033[1mError\033[m ] $*"
   else
      echo "   [ Error ] $*"
   fi
   echo ""
}

warn (){
   if $LOGGING || $terminal ; then
      echo ""
      if $terminal ; then
         echo -e "   [ \033[33m\033[1mWarn\033[m ]  $*"
      else
         echo "   [ Warn ]  $*"
      fi
      echo ""
   fi
}

info (){
   if $LOGGING || $terminal ; then
      echo ""
      if $terminal ; then
         echo -e "   [ \033[32m\033[1mInfo\033[m ]  $*"
      else
         echo "   [ Info ]  $*"
      fi
      echo ""
   fi
}

ok (){
   if $LOGGING || $terminal ; then
      echo ""
      if $terminal ; then
         echo -e "   [ \033[32m\033[1mOk\033[m ]    $*"
      else
         echo "   [ Ok ]    $*"
      fi
      echo ""
   fi
}

echo_done() {
   if $terminal ; then
      echo -e "\033[75G[ \033[32mdone\033[m ]"
   fi
}
echo_ok() {
   if $terminal ; then
      echo -e "\033[75G[ \033[32mok\033[m ]"
   fi
}
echo_failed(){
   if $terminal ; then
      echo -e "\033[75G[ \033[1;31mfailed\033[m ]"
   fi
}
echo_skipped() {
   if $terminal ; then
      echo -e "\033[75G[ \033[33m\033[1mskipped\033[m ]"
   fi
}
echo_wait(){
   if $terminal ; then
      echo -en "\033[75G[ \033[5m\033[1m...\033[m ]"
   fi
}

trim() {
    local var="$*"
    var="${var#"${var%%[![:space:]]*}"}"   # remove leading whitespace characters
    var="${var%"${var##*[![:space:]]}"}"   # remove trailing whitespace characters
    echo -n "$var"
}

blank_line() {
   if $terminal ; then
      echo ""
   fi
}



# ----------
# - Jobhandling 
# ----------

# - Run 'clean_up' for signals SIGHUP SIGINT SIGTERM
# -
trap clean_up SIGHUP SIGINT SIGTERM

# - Create lock directory '$LOCK_DIR"
#
mkdir "$LOCK_DIR"


# ----------
# - Some checks ..
# ----------

# - Running in a terminal?
# -
if [[ -t 1 ]] ; then
   terminal=true
else
   terminal=false
fi


# ==========
# - Begin Main Script
# ==========

# ----------
# - Headline
# ----------

if $terminal ; then
   echo ""
   echo -e "\033[1m----------\033[m"
   echo -e "\033[32m\033[1mRunning script \033[m\033[1m$script_name\033[32m .. \033[m"
   echo -e "\033[1m----------\033[m"
fi


# ----------
#  Read Configurations from $conf_file
# ----------


# - Give your default values here
# -
LOGGING=false
BATCH_MODE=false
DEFAULT_REPOSITORY_NAME="dehydrated-cron"
DEFAULT_REPOSITORY_BASE_PATH="/usr/local/src"

if [[ -f "$conf_file" ]]; then
   source "$conf_file"
else
   warn "No configuration file '$conf_file' present.\n
             Loading default values.."
fi

[[ -n "$REPOSITORY_NAME" ]] || REPOSITORY_NAME="$DEFAULT_REPOSITORY_NAME"
[[ -n "$REPOSITORY_BASE_PATH" ]] || REPOSITORY_BASE_PATH="${DEFAULT_REPOSITORY_BASE_PATH}"

REPOSITORY_PATH="${REPOSITORY_BASE_PATH}/$REPOSITORY_NAME"



# ----------
# - Main part of script
# ----------

if $terminal ; then
   echo ""
   echo ""
   echo -e "   \033[1mMain part of script ..\033[m"
   echo ""
fi

if [[ ! -d "$REPOSITORY_PATH" ]] ; then
	info "Repository '$REPOSITORY_NAME' is not present."
   read -s dummy1
   read -s dummy2
	clean_up 0
fi 

echononl "Change into directory '$REPOSITORY_PATH'.."
cd "$REPOSITORY_PATH" > "$log_file" 2>&1
if [[ $? -gt 0 ]]; then
	echo_failed
	error "$(cat "$log_file")"
else
	echo_ok
fi

if $terminal ; then
   echo ""
   echo -e "   Update repositiry\033[1m$REPOSITORY_NAME\033[m  .."
   echo ""
fi

git pull 2> "$log_file"

if [ -s "$log_file" ]; then
   info "$(cat "$log_file")"
else
   blank_line
   echononl "Updating repository \033[1m$REPOSITORY_NAME\033[m"
   echo_done
fi


clean_up 0

blank_line
echononl "Updating repository \033[1m$REPOSITORY_NAME\033[m"
if [ -s "$log_file" ]; then
	echo_failed
	error "$(cat "$log_file")"
else 
	echo_done
fi

clean_up 0