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#!/bin/bash
#########################################################################
# Copyright (c) 2014 Scott Furry
#
# This file is part of Freedroid
#
# Freedroid is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# Freedroid is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Freedroid; see the file COPYING. If not, write to the
# Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
#########################################################################
#
# This shell script is apart of FDRPG wiki parsing and is used in
# conjunction with wiki_parse.lua to create symbolic links between
# images in FDRPG root/graphic/ folder and the wiki upload folder
#
# Usage:
# wpImageLink.sh <path to freedroid RPG root> <path to output_images.txt> [verbose]
# NOTE: Do not include "output_images.txt" to the second argument
# "output_images.txt" is the default file name
#
##################
function usage
##################
{
echo ""
echo "Usage:"
echo -e "\t$0 <path to freedroid RPG root> <path to output_images.txt>"
echo ""
exit ${1}
}
##################
# http://www.unix.com/shell-programming-scripting/28054-error-checking-bash.html
function if_error
##################
{
ERR_VAL=${1}
ERR_NUM=${2}
ERR_TEXT=${3}
if [[ $ERR_NUM -ne $ERR_VAL ]]; then # check return code passed to function
echo -e "ERROR: ${ERR_TEXT} To Pass: ${ERR_NUM} Rcvd: ${ERR_VAL} "
exit $ERR_VAL
fi
}
##
# local variables
CWD=`pwd`
SRCFILE="output_images.txt"
VERBOSITY=""
ROOTFRDRPG=""
FDRPGGRAPHICS=""
FDRPGWIKIUPLOAD=""
IMGFILE=""
##
# test argument count
if [[ $# -lt 2 || $# -gt 3 ]]; then
echo "wrong number of arguments supplied to script"
usage 1
else
ROOTFRDRPG="${1}"
FDRPGGRAPHICS="${ROOTFRDRPG}/data/graphics"
FDRPGWIKIUPLOAD="${ROOTFRDRPG}/doc/wiki/uploads"
IMGFILE="${2}/${SRCFILE}"
if [[ $# -eq 3 ]]; then
VERBOSITY="-v "
fi
fi
##
# verify arguments to script
if [[ ! -d "${ROOTFRDRPG}" ]]; then
echo "Argument for Freedroid Root folder incorrect"
usage 1
else
if [[ ! -d "${FDRPGGRAPHICS}" ]]; then
echo "Argument for Freedroid Root folder incorrect"
usage 1
fi
fi
if [[ ! -e "${IMGFILE}" ]]; then
echo "Argument for output_images.txt incorrect"
usage 1
fi
##
# Test (and if necessary create) output directories
if [[ ! -d "${FDRPGWIKIUPLOAD}/Droids" ]]; then
echo "creating directory ${FDRPGWIKIUPLOAD}/Droids"
mkdir -p "${FDRPGWIKIUPLOAD}/Droids"
if_error $? 0 "Create ${FDRPGWIKIUPLOAD}/Droids"
fi
if [[ ! -d "${FDRPGWIKIUPLOAD}/Items" ]]; then
echo "creating directory ${FDRPGWIKIUPLOAD}/Items"
mkdir -p "${FDRPGWIKIUPLOAD}/Items"
if_error $? 0 "Create ${FDRPGWIKIUPLOAD}/Items"
fi
##
# Read in output_images.txt and process contents
cd "${ROOTFRDRPG}"
# ensure we have absolute path
ROOTFRDRPG=`pwd`
while read line
do
while read -a VALUES ; do
# prepend absolute path to parsed src/dest path
SRCIMG=`echo ${VALUES[0]} | sed 's/^[\.]\(.*\)/\1/'`
SRCIMG="${ROOTFRDRPG}${SRCIMG}"
DESTLINK=`echo ${VALUES[1]} | sed 's/^[\.]\(.*\)/\1/'`
DESTLINK="${ROOTFRDRPG}${DESTLINK}"
if [[ ! -e "${SRCIMG}" ]]; then
echo "${SRCIMG} does not exist"
usage 1
fi
LINKMATCH=0
if [[ -h "${DESTLINK}" || -f "${DESTLINK}" ]]; then
# check existing link - matches data to be written?
CURRENTLINK=`readlink -e ${DESTLINK}`
if [[ "${CURRENTLINK}" == "${SRCIMG}" ]]; then
# file exists and links are the same - move on
LINKMATCH=1
fi
# has the image been updated?
# Yes - re-update the link and force update of image
CURRENTCHGTIME_DEST=`stat -c %Z ${DESTLINK}`
CURRENTCHGTIME_SRC=`stat -c %Z ${SRCIMG}`
if [[ $CURRENTCHGTIME_SRC -ge $CURRENTCHGTIME_DEST ]]; then
LINKMATCH=0
fi
fi
if [[ $LINKMATCH -eq 0 ]]; then
# unlink if file/link exists
if [[ -h "${DESTLINK}" || -f "${DESTLINK}" ]]; then
rm ${VERBOSITY} "${DESTLINK}"
if_error $? 0 "removing ${DESTLINK}"
fi
# write links
ln -s ${VERBOSITY} "${SRCIMG}" "${DESTLINK}"
if_error $? 0 "Creating symbolic link ${DESTLINK}"
fi
done <<< "${line}"
done < "${IMGFILE}"
cd "${CWD}"
exit 0
|
