eclass/cron.eclass


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
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150

# Copyright 1999-2005 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/eclass/cron.eclass,v 1.9 2005/09/06 04:20:02 vapier Exp $

# Original Author: Aaron Walker <ka0ttic@gentoo.org>
#
# Purpose: The main motivation for this eclass was to simplify
# the jungle known as src_install() in cron ebuilds. Using these
# functions also ensures that permissions are *always* reset,
# preventing the accidental installation of files with wrong perms.
#
# NOTE on defaults: the default settings in the below functions were
# chosen based on the most common setting among cron ebuilds.
#
# Please assign any bugs regarding this eclass to cron-bugs@gentoo.org.

inherit eutils flag-o-matic

EXPORT_FUNCTIONS pkg_postinst

SLOT="0"

DEPEND=">=sys-apps/sed-4.0.5"

RDEPEND="!virtual/cron
	virtual/mta
	>=sys-process/cronbase-0.2.1-r3"

PROVIDE="virtual/cron"

# docrondir [ dir ] [ perms ]
#
# Creates crontab directory
#
#	Both arguments are optional.  Everything after 'dir' is considered
#   the permissions (same format as insopts).
#
# ex: docrondir /some/dir -m 0770 -o root -g cron
#     docrondir /some/dir (uses default perms)
#     docrondir -m0700 (uses default dir)

docrondir() {
	# defaults
	local perms="-m0750 -o root -g cron" dir="/var/spool/cron/crontabs"

	if [[ -n $1 ]] ; then
		case "$1" in
			*/*)
				dir=$1
				shift
				[[ -n $1 ]] && perms="$@"
				;;
			*)
				perms="$@"
				;;
		esac
	fi

	diropts ${perms}
	keepdir ${dir}

	# reset perms to default
	diropts -m0755
}

# docron [ exe ] [ perms ]
#
# Install cron executable
#
#    Both arguments are optional.
#
# ex: docron -m 0700 -o root -g root ('exe' defaults to "cron")
#     docron crond -m 0110

docron() {
	local cron="cron" perms="-m 0750 -o root -g wheel"

	if [[ -n $1 ]] ; then
		case "$1" in
			-*)
				perms="$@"
				;;
			 *)
				cron=$1
				shift
				[[ -n $1 ]] && perms="$@"
				;;
		esac
	fi

	exeopts ${perms}
	exeinto /usr/sbin
	doexe ${cron} || die "failed to install ${cron}"

	# reset perms to default
	exeopts -m0755
}

# docrontab [ exe ] [ perms ]
#
# Install crontab executable
#
#   Uses same semantics as docron.

docrontab() {
	local crontab="crontab" perms="-m 4750 -o root -g cron"

	if [[ -n $1 ]] ; then
		case "$1" in
			-*)
				perms="$@"
				;;
			 *)
				crontab=$1
				shift
				[[ -n $1 ]] && perms="$@"
				;;
		esac
	fi

	exeopts ${perms}
	exeinto /usr/bin
	doexe ${crontab} || die "failed to install ${crontab}"

	# reset perms to default
	exeopts -m0755

	# users expect /usr/bin/crontab to exist...
	if [[ "${crontab##*/}" != "crontab" ]] ; then
		dosym ${crontab##*/} /usr/bin/crontab || \
			die "failed to create /usr/bin/crontab symlink"
	fi
}

cron_pkg_postinst() {
	echo
	# vixie is the only daemon that has a true system crontab
	if [[ "${PN}" != "vixie-cron" ]] ; then
		einfo "To activate /etc/cron.{hourly|daily|weekly|monthly} please run:"
		einfo " crontab /etc/crontab"
		einfo
		einfo "!!! That will replace root's current crontab !!!"
		einfo
	fi

	einfo "You may wish to read the Gentoo Linux Cron Guide, which can be"
	einfo "found online at:"
	einfo "    http://www.gentoo.org/doc/en/cron-guide.xml"
	echo
}