68 lines
1.3 KiB
Bash
68 lines
1.3 KiB
Bash
#!/bin/sh
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SIZE=40M
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USE_RSYNC=false
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ENABLED=false
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[ -f /etc/default/log2ram ] && . /etc/default/log2ram
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[ "$ENABLED" != true ] && exit 0
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# don't touch anything below here.
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HDD_LOG=/var/log.hdd/
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RAM_LOG=/var/log/
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LOG2RAM_LOG="${HDD_LOG}log2ram.log"
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LOG_OUTPUT="tee -a $LOG2RAM_LOG"
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isSafe () {
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[ -d $HDD_LOG ] || echo "ERROR: $HDD_LOG doesn't exist! Can't sync."
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[ -d $HDD_LOG ] || exit 1
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}
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syncToDisk () {
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isSafe
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if [ "$USE_RSYNC" = true ]; then
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rsync -aXWv --delete --exclude log2ram.log --links $RAM_LOG $HDD_LOG 2>&1 | $LOG_OUTPUT
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else
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cp -rfup $RAM_LOG -T $HDD_LOG 2>&1 | $LOG_OUTPUT
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fi
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}
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syncFromDisk () {
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isSafe
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if [ "$USE_RSYNC" = true ]; then
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rsync -aXWv --delete --exclude log2ram.log --links $HDD_LOG $RAM_LOG 2>&1 | $LOG_OUTPUT
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else
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cp -rfup $HDD_LOG -T $RAM_LOG 2>&1 | $LOG_OUTPUT
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fi
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}
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case "$1" in
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start)
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[ -d $HDD_LOG ] || mkdir $HDD_LOG
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rm -f $LOG2RAM_LOG
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mount --bind $RAM_LOG $HDD_LOG
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mount --make-private $HDD_LOG
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mount -t tmpfs -o nosuid,noexec,nodev,mode=0755,size=$SIZE log2ram $RAM_LOG
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syncFromDisk
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;;
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stop)
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syncToDisk
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umount -l $RAM_LOG
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umount -l $HDD_LOG
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;;
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write)
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syncToDisk
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;;
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*)
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echo "Usage: log2ram {start|stop|write}" >&2
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exit 1
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;;
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esac
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