110 lines
3.9 KiB
Bash
Executable File
110 lines
3.9 KiB
Bash
Executable File
#!/bin/sh
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PATH=/usr/sbin:/usr/bin:/sbin:/bin
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# in case of `dpkg -r' leaving conffile.
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if ! [ -x /usr/sbin/tmpreaper ]; then
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exit 0
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fi
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# Remove `/tmp/...' files not accessed in X time (configured in
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# /etc/tmpreaper.conf, default 7 days), protecting the .X, .ICE, .iroha and
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# .ki2 files; but removing symlinks. For directories not the access time, but
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# the modification time is used (--mtime-dir), as reading a directory to check
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# the contents will update the access time!
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#
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# In the default, /tmp/. is used, not the plain /tmp you might expect, as this
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# accomodates the situation where /tmp is a symlink to some other place.
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#
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# Note that the sockets are safe even without the `--protect', unless `--all'
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# is given, and the `.X*-lock' files would be safe also, as long as they have
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# no write permissions, so this particular protect is mainly illustrative, and
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# redundant. For best results, don't try to get fancy with the moustache
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# expansions. KISS. Always --test your protect patterns.
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#
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# Immutable files (such as ext3fs' .journal) are not (cannot be) removed;
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# when such a file is encountered when trying to remove it, no error is given
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# unless you use the --verbose option in which case a message is given.
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#
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# In case you're wondering: .iroha is for cannaserver and .ki2 is for kinput2
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# (japanese software, lock files).
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# journal.dat is for (older) ext3 filesystems
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# quota.user, quota.group is for (duh) quotas.
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# Set config defaults
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SHOWWARNING=''
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# get the TMPREAPER_TIME value from /etc/default/rcS
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if grep '^TMPTIME=' /etc/default/rcS >/dev/null 2>&1; then
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eval $(grep '^TMPTIME=' /etc/default/rcS)
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if [ -n "$TMPTIME" ]; then
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# Don't clean files if TMPTIME is negative or 'infinite'
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# to mimic the way /lib/init/bootclean.sh works.
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case "$TMPTIME" in
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-*|infinite|infinity)
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# don't use this as default
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;;
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*)
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if [ "$TMPTIME" -gt 0 ]; then
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TMPREAPER_TIME=${TMPTIME}d
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else
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TMPREAPER_TIME=7d
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fi
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;;
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esac
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fi
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fi
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# ! Important ! The "set -f" below prevents the shell from expanding
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# file paths, which is vital for the configuration below to work.
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set -f
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# preserve environment setting of TMPREAPER_DELAY to allow manual override when
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# running the cron.daily script by hand:
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if [ -n "$TMPREAPER_DELAY" ]; then
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# check for digits only
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case "$TMPREAPER_DELAY" in
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[0-9]*) TMPREAPER_DELAY_SAVED="$TMPREAPER_DELAY";;
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*) ;;
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esac
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fi
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if [ -s /etc/tmpreaper.conf ]; then
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. /etc/tmpreaper.conf
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fi
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# Now restore the saved value of TMPREAPER_DELAY (if any):
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if [ -n "$TMPREAPER_DELAY_SAVED" ]; then
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TMPREAPER_DELAY="$TMPREAPER_DELAY_SAVED"
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else
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# set default in case it's not given in tmpreaper.conf:
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TMPREAPER_DELAY=${TMPREAPER_DELAY:-256}
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fi
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if [ "$SHOWWARNING" = true ]; then
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echo "Please read /usr/share/doc/tmpreaper/README.security.gz first;"
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echo "edit /etc/tmpreaper.conf to remove this message (look for SHOWWARNING)."
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exit 0
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fi
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# Verify that these variables are set, and if not, set them to default values
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# This will work even if the required lines are not specified in the included
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# file above, but the file itself does exist.
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TMPREAPER_TIME=${TMPREAPER_TIME:-7d}
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TMPREAPER_PROTECT_EXTRA=${TMPREAPER_PROTECT_EXTRA:-''}
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TMPREAPER_DIRS=${TMPREAPER_DIRS:-'/tmp/.'}
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nice -n10 tmpreaper --delay=$TMPREAPER_DELAY --mtime-dir --symlinks $TMPREAPER_TIME \
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$TMPREAPER_ADDITIONALOPTIONS \
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--ctime \
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--protect '/tmp/.X*-{lock,unix,unix/*}' \
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--protect '/tmp/.ICE-{unix,unix/*}' \
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--protect '/tmp/.iroha_{unix,unix/*}' \
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--protect '/tmp/.ki2-{unix,unix/*}' \
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--protect '/tmp/lost+found' \
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--protect '/tmp/journal.dat' \
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--protect '/tmp/quota.{user,group}' \
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`for i in $TMPREAPER_PROTECT_EXTRA; do echo --protect "$i"; done` \
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$TMPREAPER_DIRS
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