copyfile.sh

copyfile.sh

#!/bin/bash
##
# format
# <TAG>,<SRC_PATH>,<DST_PATH>,<FLAGS>
#
##

## const defination

PARAM_FILE="/Users/zhao/Workspace/playground/param"
TAG=$1
IGNORE_FLAG="I"


## function defination ##

check_param_file () {
  # check tags are uniq
  if [ `awk -F',' '{print $1}' $PARAM_FILE | uniq |  wc -l` -ne `awk -F',' '{print $1}' $PARAM_FILE | wc -l` ]
  then
  	echo "tags are not uniq."
  	exit 1
  fi
}

check_file_copyable () {
  # check single file copyable
  # test ok
  src="$1"
  dst="$2" 
  flg="$3"
  if [[ "$flg" == "$IGNORE_FLAG" ]]
  then
    if [[ ! -f $dst ]]
    then
      echo 0
    else
      echo 1
    fi
  else 
    if [[ -f $src ]] && [[ ! -f $dst ]]
    then
      echo 0
    else
      echo 1
    fi
  fi
}

check_copyable () {
  # check path copyable
  src="$1"
  dst="$2" 
  flg="$3"
  if [[ -d "$src" ]]
  then
	# if src is a directory, check every file found in it
    for path in `find "$src"`
	do
      if [[ -d $path ]]
	  then
	    # skip for directories
		continue
	  fi
	  # check single file copyable
	  src_file=$path
	  relative_path=${path#"$src"}
	  dst_file=$dst$relative_path
	  if [[ `check_file_copyable "$src_file" "$dst_file" "$flg"` -ne 0 ]]
	  then
		echo "$src_file does not exist or $dst_file already exist"
		exit 1
	  fi
    done
  else
	# check single file copyable
    if [[ `check_file_copyable "$src" "$dst" "$flg"` -ne 0 ]]
    then
      echo "$src does not exist or $dst already exist"
      exit 1
    fi
  fi
}

copy_file () {
  # Copy file or directory.
  # raise error code 1 when copy failed.
  src="$1"
  dst="$2" 
  flg="$3" 
  if [[ $flg == $IGNORE_FLAG ]]
  then
    # ignore error message.
    cp -r $src $dst 2>/dev/null
  else
    cp -r $src $dst
    if [ $? -ne 0 ]
    then
    	echo "copy failed, $#"
    	exit 1
    else
    	echo "copy ok"
    fi
  fi
}


## Main ##

check_param_file

IFS=$'\n'
for line in $(cat $PARAM_FILE)
do
opt="$(cut -d',' -f1 <<<"$line")"
src="$(cut -d',' -f2 <<<"$line")"
dst="$(cut -d',' -f3 <<<"$line")"
flg="$(cut -d',' -f4 <<<"$line")"
if [[ $TAG == $opt ]]; then
  check_copyable "$src" "$dst" "$flg"
  copy_file "$src" "$dst" "$flg"
fi
done