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# Copyright 1999-2018 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# @ECLASS: cron.eclass
# @MAINTAINER:
# cron-bugs@gentoo.org
# @AUTHOR:
# Original Author: Aaron Walker <ka0ttic@gentoo.org>
# @BLURB: Some functions for cron
# @DESCRIPTION:
# 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=">=sys-process/cronbase-0.3.2"
for pn in vixie-cron bcron cronie dcron fcron; do
[[ ${pn} == "${PN}" ]] || RDEPEND="${RDEPEND} !sys-process/${pn}"
done
# @FUNCTION: docrondir
# @USAGE: [ dir ] [ perms ]
# @DESCRIPTION:
# 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
}
# @FUNCTION: docron
# @USAGE: [ exe ] [ perms ]
# @DESCRIPTION:
# 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
}
# @FUNCTION: docrontab
# @USAGE: [ exe ] [ perms ]
# @DESCRIPTION:
# 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 ${crontab##*/} /usr/bin/crontab || \
die "failed to create /usr/bin/crontab symlink"
fi
}
# @FUNCTION: cron_pkg_postinst
# @DESCRIPTION:
# Outputs a message about system crontabs
# daemons that have a true system crontab set CRON_SYSTEM_CRONTAB="yes"
cron_pkg_postinst() {
echo
# daemons that have a true system crontab set CRON_SYSTEM_CRONTAB="yes"
if [ "${CRON_SYSTEM_CRONTAB:-no}" != "yes" ] ; 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 " https://wiki.gentoo.org/wiki/Cron"
echo
}
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