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bees/scripts/beesd.in
Kai Krakow 893595190f Allow custom libexec location
To install for different distributions, LIBEXEC_PREFIX can now be set.
It defaults to $(PREFIX)/usr/lib/bees as used in most common
distributions.

Local overrides are possible by setting variables in a "localconf" file
which will be included by the Makefile if it exists.

For some distributions you may want to set it to /usr/libexec or
/usr/libexec/bees.
2017-09-20 21:00:54 +02:00

128 lines
3.2 KiB
Bash
Executable File

#!/bin/bash
## Helpful functions
INFO(){ echo "INFO:" "$@"; }
ERRO(){ echo "ERROR:" "$@"; exit 1; }
YN(){ [[ "$1" =~ (1|Y|y) ]]; }
## Global vars
export BEESHOME BEESSTATUS
export WORK_DIR CONFIG_DIR
export CONFIG_FILE
export UUID AL16M
readonly AL16M="$((16*1024*1024))"
readonly CONFIG_DIR=@PREFIX@/etc/bees/
## Pre checks
{
[ ! -d "$CONFIG_DIR" ] && ERRO "Missing: $CONFIG_DIR"
[ "$UID" == "0" ] || ERRO "Must be run as root"
}
command -v @LIBEXEC_PREFIX@/bees &> /dev/null || ERRO "Missing 'bees' agent"
## Parse args
UUID="$1"
case "$UUID" in
*-*-*-*-*)
FILE_CONFIG=""
for file in "$CONFIG_DIR"/*.conf; do
[ ! -f "$file" ] && continue
if grep -q "$UUID" "$file"; then
INFO "Find $UUID in $file, use as conf"
FILE_CONFIG="$file"
fi
done
[ ! -f "$FILE_CONFIG" ] && ERRO "No config for $UUID"
source "$FILE_CONFIG"
;;
*)
echo "beesd <btrfs_uuid>"
exit 1
;;
esac
WORK_DIR="${WORK_DIR:-/run/bees/}"
MNT_DIR="${MNT_DIR:-$WORK_DIR/mnt/$UUID}"
BEESHOME="${BEESHOME:-$MNT_DIR/.beeshome}"
BEESSTATUS="${BEESSTATUS:-$WORK_DIR/$UUID.status}"
DB_SIZE="${DB_SIZE:-$((64*AL16M))}"
LOG_SHORT_PATH="${LOG_SHORT_PATH:-N}"
LOG_FILTER_TIME="${LOG_FILTER_TIME:-N}"
INFO "Check: Disk exists"
if [ ! -b "/dev/disk/by-uuid/$UUID" ]; then
ERRO "Missing disk: /dev/disk/by-uuid/$UUID"
fi
it_btrfs(){ [ "$(blkid -s TYPE -o value "$1")" == "btrfs" ]; }
INFO "Check: Disk with btrfs"
if ! it_btrfs "/dev/disk/by-uuid/$UUID"; then
ERRO "Disk not contain btrfs: /dev/disk/by-uuid/$UUID"
fi
INFO "WORK DIR: $WORK_DIR"
mkdir -p "$WORK_DIR" || exit 1
INFO "MOUNT DIR: $MNT_DIR"
mkdir -p "$MNT_DIR" || exit 1
umount_w(){ mountpoint -q "$1" && umount -l "$1"; }
force_umount(){ umount_w "$MNT_DIR"; }
trap force_umount SIGINT SIGTERM EXIT
mount -osubvolid=5 /dev/disk/by-uuid/$UUID "$MNT_DIR" || exit 1
if [ ! -d "$BEESHOME" ]; then
INFO "Create subvol $BEESHOME for store bees data"
btrfs sub cre "$BEESHOME"
else
btrfs sub show "$BEESHOME" &> /dev/null || ERRO "$BEESHOME MUST BE A SUBVOL!"
fi
# Check DB size
{
DB_PATH="$BEESHOME/beeshash.dat"
touch "$DB_PATH"
OLD_SIZE="$(du -b "$DB_PATH" | sed 's/\t/ /g' | cut -d' ' -f1)"
NEW_SIZE="$DB_SIZE"
if (( "$NEW_SIZE"%AL16M > 0 )); then
ERRO "DB_SIZE Must be multiple of 16M"
fi
if (( "$OLD_SIZE" != "$NEW_SIZE" )); then
INFO "Resize db: $OLD_SIZE -> $NEW_SIZE"
[ -f "$BEESHOME/beescrawl.$UUID.dat" ] && rm "$BEESHOME/beescrawl.$UUID.dat"
truncate -s $NEW_SIZE $DB_PATH
fi
chmod 700 "$DB_PATH"
}
MNT_DIR="${MNT_DIR//\/\//\/}"
filter_time(){
if YN $LOG_FILTER_TIME; then
sed -e 's/^.*crawl:/crawl:/g' \
-e 's/^.*status:/status:/g' \
-e 's/^.*bees:/bees:/g' \
-e 's/^.*crawl_writeback:/crawl_writeback:/g' \
-e 's/^.*main:/main:/g' \
-e 's/^.*hash_prefetch:/hash_prefetch:/g'
else
cat
fi
}
filter_path(){
if YN $LOG_SHORT_PATH; then
sed -e "s#$MNT_DIR##g"
else
cat
fi
}
@LIBEXEC_PREFIX@/bees "$MNT_DIR" 3>&1 2>&1 | filter_time | filter_path
exit 0