blob: fa29baa32cf2884b4cb522cc0ccbe5586a0f1b06 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
#!/bin/sh
## live-build(7) - System Build Scripts
## Copyright (C) 2006-2012 Daniel Baumann <daniel@debian.org>
##
## This program comes with ABSOLUTELY NO WARRANTY; for details see COPYING.
## This is free software, and you are welcome to redistribute it
## under certain conditions; see COPYING for details.
Check_lockfile ()
{
FILE="${1}"
if [ -z "${FILE}" ]
then
FILE="/var/lock/${PROGRAM}.lock"
fi
# Checking lock file
if [ -f "${FILE}" ]
then
Echo_error "${PROGRAM} locked"
exit 1
fi
}
Create_lockfile ()
{
FILE="${1}"
if [ -z "${FILE}" ]
then
FILE="/var/lock/${PROGRAM}.lock"
fi
DIRECTORY="$(dirname ${FILE})"
# Creating lock directory
mkdir -p "${DIRECTORY}"
# Creating lock trap
trap 'ret=${?}; '"rm -f \"${FILE}\";"' exit ${ret}' EXIT HUP INT QUIT TERM
# Creating lock file
touch "${FILE}"
}
|
