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#!/bin/bash
set -e
test_if_ancient()
{
d=$1
ttl=$2
mtime=$(stat --format "%Y" "$d")
tod=$(($mtime + 3600*24*$ttl))
now=$(date +%s)
[ "$optVerbose" -ge "2" ] && echo "Consider $d: ttl=$ttl, mod time=$mtime, time of death=$tod, now=$now"
[ "$tod" -lt "$now" ] && return 0
return 1
}
cleanit()
{
d=$1
[ -d "$d" ] || exit 0
[ -e $d/.publish.ttl ] && ttl=`cat $d/.publish.ttl`
if test_if_ancient $d $ttl; then
[ "$optVerbose" -ge "1" ] && echo "Purge $d"
rm -rf "$d"
fi
return 0
}
usage()
{
cat << EOF
usage: $0 [OPTIONS]
OPTIONS:
-h Show this message.
-v Give verbose output. Be more verbose with -vv.
EOF
}
optVerbose=0
while getopts "vh" OPTION; do
case $OPTION in
h)
usage
;;
v)
optVerbose=$(($optVerbose + 1))
;;
esac
done
ttl=14
[ -e ~/.publish-purge.cfg ] && . ~/.publish-purge.cfg
# We would not like that cleanit removes files in directories that mallory set
# as $base
if ! stat --format=%a ~/.publish-purge.cfg | egrep -q ".00"; then
echo "For security reasons ~/.publish-purge.cfg should have no perms for group and others."
fi
if [ -z "$base" ]; then
echo "Please setup \$base in ~/.publish-purge.cfg"
exit 1
fi
if ! [ -e "$base" ]; then
echo "Unknown base directory $base"
exit 1
fi
cd $base
# We would not like to accidentily delete files in the wrong directory, hence
# the paranoia check
if ! [ -e .publish-purge.token ]; then
echo "Place a .publish-purge.token in $base"
exit 1
fi
for d in *; do
pushd . > /dev/null
# we launch a subshell so that setting $ttl within the subshell
# is not visible outside the subshell
( cleanit $d )
popd > /dev/null
done
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