#COPYAFTER:###########################################
#!/bin/bash
# cpafter.sh: Copies files modified on or after a given date, along with dirs.
# (requires copy_it.sh)
#
# Copyright (C) 2007 Scott Carpenter
# http://www.movingtofreedom.org
# scottc (at) movingtofreedom (dot) org
#
# This program 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 3
# of the License, or (at your option) any later version.
#
# This program 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 this program. If not, see http://www.gnu.org/licenses/.
usage="\nCopies files modified on or after the given date from source dir\n"
usage+="to target dir, creating any subdirectories as needed.\n\n"
usage+="\tusage: cpafter.sh [-vf] -a after_date_YYYYMMDD -s source_dir -t target_dir\n"
usage+="\t\t-v verbose\n"
usage+="\t\t-f force target dir creation or copying to non-empty target dir\n"
while getopts ":vfa:s:t:" opt
do
case $opt in
v ) verbose=" -v " ;;
f ) force="true" ;;
a ) after_date=$OPTARG ;;
s ) from_dir=$OPTARG ;;
t ) to_dir=$OPTARG ;;
\? ) echo -e $usage
exit 1
esac
done
shift $(($OPTIND - 1))
if [[ -z "$after_date" || -z "$from_dir" || -z "$to_dir" || $# -ne 0 ]]; then
echo -e $usage
exit 1
fi
if [[ ! -d "$from_dir" ]]; then
echo "source dir does not exist"
bail="true"
fi
if [[ ! -d "$to_dir" ]]; then
if [[ -z "$force" ]]; then
echo "target dir does not exist (use -f to force mkdir)"
bail="true"
elif [[ -z "$bail" ]]; then
if [[ -n "$verbose" ]]; then
echo "making target dir $to_dir"
fi
mkdir -p $to_dir
fi
fi
if [[ -d "$to_dir" && -n "$(ls $to_dir)" ]]; then
if [[ -z "$force" ]]; then
echo "target dir is not empty (use -f to force copy to non-empty dir)"
bail="true"
fi
fi
if [[ -n "$bail" ]]; then
exit 1
fi
after_date_epochal=$(date -d $after_date +%s)
today=$(date +%Y%m%d)
today_epochal=$(date -d $today +%s)
if (($today < $after_date)); then
echo "after_date $after_date is after today ($today)"
exit 1
fi
# subtract backwards to get negative number needed for find -mtime
# (negative number gives all files from N days back to now)
# (subtract one additional because of using -daystart option, which starts
# from midnight instead of the current time)
date_dif=$(( (($after_date_epochal - $today_epochal) / 60 / 60 / 24) - 1))
#echo "debug: date_dif is $date_dif"
orig_dir=$PWD
#there must be a better way to make sure we have absolute path of target
cd $to_dir
to_dir=$PWD
cd $orig_dir
cd $from_dir
if [[ -n "$verbose" ]]; then
echo -e "\ncopying from $PWD\n\tto $to_dir\n"
fi
find . -type f -daystart -mtime $date_dif -exec copy_it.sh $verbose -s {} -t $to_dir \;
find . -type l -daystart -mtime $date_dif -exec copy_it.sh $verbose -s {} -t $to_dir \;
cd $orig_dir
################################################
#COPY_IT########################################
#!/bin/bash
# copy_it.sh: Copies file to target dir, creating parent dirs if necessary.
# (intended to be called from cpafter.sh)
#
# Copyright (C) 2007 Scott Carpenter
# http://www.movingtofreedom.org
# scottc (at) movingtofreedom (dot) org
#
# This program 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 3
# of the License, or (at your option) any later version.
#
# This program 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 this program. If not, see http://www.gnu.org/licenses/.
usage="\nCopies a file to a dir, using the path information from the file to\n"
usage+="build a path from the given dir root if necessary. Meant to be used\n"
usage+="with cpafter.sh.\n\n"
usage+="\tusage: copy_it.sh [-v] -s source_file -t target_directory_root\n"
usage+="\t\t-v verbose (just lists the source file)\n"
while getopts ":vs:t:" opt
do
case $opt in
v ) verbose=true ;;
s ) from_file=$OPTARG ;;
t ) to_dir=$OPTARG ;;
\? ) echo -e $usage
exit 1
esac
done
shift $(($OPTIND - 1))
if [[ -z "$from_file" || -z "$to_dir" ]]; then
echo -e $usage
exit 1
fi
curdir=$PWD #from_dir
#regex -- does string start with dot slash?
#if [[ ! "$from_file" =~ ^\./ ]]; then
# from_file="./$from_file" #in case only a filename was given
#fi
#return $from_file up to (but not including) last slash
add_to_target=${from_file%/*}
#echo "debug: copy_it: old file: $curdir/$from_file"
#echo "debug: copy_it: mkdir -p $to_dir/${BASH_REMATCH[1]}"
#echo "debug: copy_it: new file: $to_dir/$from_file"
#echo "debug: copy_it: cp -pdf \"$curdir/$from_file\" \"$to_dir/$from_file\""
#echo
if [[ ! -d "$to_dir/$add_to_target" ]]; then
if [ -n "$verbose" ]; then
#here and below, remove $to_dir/ for a cleaner listing
msg="(mkdir) $to_dir/$add_to_target"
#bash built-in substitution ${variable/pattern_to_match/replacement_string}
echo "${msg/$to_dir\//}"
fi
mkdir -p "$to_dir/$add_to_target"
fi
cp -pdf "$curdir/$from_file" "$to_dir/new_$from_file"
if [ -n "$verbose" ]; then
msg="$to_dir/$from_file"
echo "${msg/$to_dir\//}"
fi
#notes
#-need "" around filenames in cp and mkdir to handle files with spaces in the name