1#!/bin/sh
2
3# This script is executed when a guest agent receives fsfreeze-freeze and
4# fsfreeze-thaw command, if it is specified in --fsfreeze-hook (-F)
5# option of qemu-ga or placed in default path (/etc/qemu/fsfreeze-hook).
6# When the agent receives fsfreeze-freeze request, this script is issued with
7# "freeze" argument before the filesystem is frozen. And for fsfreeze-thaw
8# request, it is issued with "thaw" argument after filesystem is thawed.
9
10LOGFILE=/var/log/qga-fsfreeze-hook.log
11FSFREEZE_D=$(dirname -- "$0")/fsfreeze-hook.d
12
13# Check whether file $1 is a backup or rpm-generated file and should be ignored
14is_ignored_file() {
15    case "$1" in
16        *~ | *.bak | *.orig | *.rpmnew | *.rpmorig | *.rpmsave | *.sample | *.dpkg-old | *.dpkg-new | *.dpkg-tmp | *.dpkg-dist | *.dpkg-bak | *.dpkg-backup | *.dpkg-remove)
17            return 0 ;;
18    esac
19    return 1
20}
21
22# Iterate executables in directory "fsfreeze-hook.d" with the specified args
23[ ! -d "$FSFREEZE_D" ] && exit 0
24for file in "$FSFREEZE_D"/* ; do
25    is_ignored_file "$file" && continue
26    [ -x "$file" ] || continue
27    printf "$(date): execute $file $@\n" >>$LOGFILE
28    "$file" "$@" >>$LOGFILE 2>&1
29    STATUS=$?
30    printf "$(date): $file finished with status=$STATUS\n" >>$LOGFILE
31done
32
33exit 0
34