From b71146769422958a5601f6c883051734c1cf358a Mon Sep 17 00:00:00 2001
From: Christoph <ckubu@oopen.de>
Date: Tue, 1 May 2018 03:31:41 +0200
Subject: [PATCH] snippets/base_script.sh: add some output.

---
 snippets/base_script.sh | 186 +++++++++++++++++++++++++++++++++++++++-
 1 file changed, 185 insertions(+), 1 deletion(-)

diff --git a/snippets/base_script.sh b/snippets/base_script.sh
index 654147b..9416af1 100755
--- a/snippets/base_script.sh
+++ b/snippets/base_script.sh
@@ -9,6 +9,8 @@ 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)
@@ -33,6 +35,10 @@ usage() {
 
    <List Options>
 
+\033[1mFiles\033[m
+
+   $conf_file: Configuration file
+
 \033[1mExample:\033[m
    
    <description example>
@@ -169,6 +175,83 @@ blank_line() {
    fi
 }
 
+# - Backup file or directory
+# -
+backup() {
+
+   is_directory=false
+
+   if [[ -z "$1" ]] ; then
+      error "No file/directory for backup given!"
+      return
+   elif [[ -h "$1" ]] ; then
+      _source="$(realpath $1)"
+      warn "'$1' is a symlink to $_source."
+   elif [[ ! -d "$1" ]] && [[ ! -f "$1" ]] ; then
+      warn "'$1' not found. Backup skipped."
+      return
+   else
+      _source="$(realpath $1)"
+   fi
+
+   if [[ -d "$_source" ]]; then
+      is_directory=true
+      echononl "Backup directory '$_source' .."
+   else
+      echononl "Backup file '$_source' .."
+   fi
+
+   cp -a "$_source" "${_source}.$backup_date" > $log_file 2>&1
+   if [[ $? -eq 0 ]] ; then
+      echo_ok
+      if $is_directory ; then
+         dirs_backuped_arr+=("$_source")
+      else
+         files_backuped_arr+=("$_source")
+      fi
+   else
+      echo_failed
+      error "$(cat "$log_file")"
+   fi
+}
+
+
+# - Remove script generated backups, if source wasn't changed
+# -
+rm_unchanged_backup() {
+
+   if [[ ${#files_backuped_arr[@]} -gt 0 ]] ; then
+      for _file in "${files_backuped_arr[@]}" ; do
+         if  $(diff "$_file" "${_file}.$backup_date" > /dev/null 2>&1) ; then
+            echononl "File '$(basename "${_file}")' wasn't changed.\n   Delete the previous generated backup. .."
+            rm "${_file}.$backup_date" > "$log_file" 2>&1
+            if [[ $? -eq 0 ]]; then
+               echo_ok
+            else
+               echo_failed
+               error "$(cat "$log_file")"
+            fi
+            blank_line
+         fi
+      done
+   fi
+   if [[ ${#dirs_backuped_arr[@]} -gt 0 ]] ; then
+      for _dir in "${dirs_backuped_arr[@]}" ; do
+         if $(diff -Nur "$_dir" "${_dir}.$backup_date" > /dev/null 2>&1) ; then
+            echononl "Directory '$(basename "${_dir}")' wasn't changed.\n   Delete the previous generated backup. .."
+            rm -rf "${_dir}.$backup_date" > "$log_file" 2>&1
+            if [[ $? -eq 0 ]]; then
+               echo_ok
+            else
+               echo_failed
+               error "$(cat "$log_file")"
+            fi
+            blank_line
+         fi
+      done
+   fi
+}
+
 
 
 # ----------
@@ -245,6 +328,9 @@ fi
 # - Give your default values here
 # -
 LOGGING=false
+BATCH_MODE=false
+PARAMETER_1="WERT_1"
+PARAMETER_2="WERT_2"
 
 if [[ -f "$conf_file" ]]; then
    source "$conf_file"
@@ -254,6 +340,99 @@ else
 fi
 
 
+# ----------
+# - Read commandline parameter
+# ----------
+
+while getopts bh opt ; do
+   case $opt in
+      b)    BATCH_MODE=true
+            ;;
+      h)    usage
+            ;;
+      \?)   usage ;;
+   esac
+done
+
+
+# ----------
+# - Read in parameters given by user
+# ----------
+
+if $terminal && ! $BATCH_MODE ; then
+
+   echo ""
+   echo ""
+   echo -e "   \033[1mRead in parameters given by user ..\033[m"
+   echo ""
+
+   echo ""
+   echo -e "\033[32m--\033[m"
+   echo ""
+   echo "   PARAMETER 1 ...."
+   echo ""
+   echo -e "   Type \033[33m<return>\033[m to accept the default."
+   echo ""
+   echo ""
+   _PARAMETER_1=$PARAMETER_1
+   PARAMETER_1=""
+   echononl "PARAMETER 1 [\033[1m$_PARAMETER_1\033[m]: "
+   read PARAMETER_1
+   if [[ -z "$PARAMETER_1" ]] ; then
+      PARAMETER_1=$_PARAMETER_1
+   fi
+
+   echo ""
+   echo -e "\033[32m--\033[m"
+   echo ""
+   echo "   Blank separated list of PARAMETER 2"
+   echo ""
+   if [[ -n "$PARAMETER_2" ]]; then
+
+      echo -e "   Type \033[33m<return>\033[m to accept the default."
+      echo ""
+      echo ""
+
+      _PARAMETER_2=$PARAMETER_2
+      PARAMETER_2=""
+
+      echononl "PARAMETER 2 [\033[1m$_PARAMETER_2\033[m]: "
+      read PARAMETER_2
+      if [[ -z "$PARAMETER_2" ]] ; then
+         PARAMETER_2=$_PARAMETER_2
+      fi
+   else
+      echo ""
+
+      echononl "\033[1mPARAMETER 2:\033[m "
+      read PARAMETER_2
+      while [[ -z "$(trim "$PARAMETER_2")" ]]; do
+         echo "Entry for  PARAMETER 2 is required! Try again.."
+         echononl "\033[1mPARAMETER 2: \033[m"
+         read PARAMETER_2
+      done
+   fi
+
+   echo ""
+   echo ""
+   echo -e "   \033[32m\033[1mParameter Summary:\033[m"
+	echo ""
+
+   echo "   PARAMETER 1................: $PARAMETER_1"
+   echo "   PARAMETER 2................: $PARAMETER_2"
+
+   echo ""
+   echononl "Continue with this parameters? [\033[1myes/no\033[m]: "
+   read OK
+   while [[ "${OK,,}" != "yes" ]] && [[ "${OK,,}" != "no" ]] ; do
+      echononl "\033[33mWrong entry!\033[m [\033[1myes/no\033[m]: "
+      read OK
+   done
+   [[ "${OK,,}" = "yes" ]] || fatal "Canceled by user input."
+
+fi
+
+
 # ----------
 # - Some pre-script tasks ..
 # ----------
@@ -265,7 +444,7 @@ if $terminal ; then
    echo ""
 fi
 
-echononl "All is fine"
+echononl "-- All is fine --"
 echo_ok
 
 
@@ -292,4 +471,9 @@ if $terminal ; then
    echo ""
 fi
 
+
+# - Remove generated backup file if source wasn't changed.
+# -
+rm_unchanged_backup
+
 clean_up 0