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# Copyright 2016-2019 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
# @ECLASS: tmpfiles.eclass
# @MAINTAINER:
# Gentoo systemd project <systemd@gentoo.org>
# William Hubbs <williamh@gentoo.org>
# @AUTHOR:
# Mike Gilbert <floppym@gentoo.org>
# William Hubbs <williamh@gentoo.org>
# @SUPPORTED_EAPIS: 5 6 7
# @BLURB: Functions related to tmpfiles.d files
# @DESCRIPTION:
# This eclass provides functionality related to installing and
# creating volatile and temporary files based on configuration files$and
# locations defined at this URL:
#
# https://www.freedesktop.org/software/systemd/man/tmpfiles.d.html
#
# The dotmpfiles and newtmpfiles functions are used to install
# configuration files into /usr/lib/tmpfiles.d, then in pkg_postinst,
# the tmpfiles_process function must be called to process the newly
# installed tmpfiles.d entries.
#
# The tmpfiles.d files can be used by service managers to recreate/clean
# up temporary directories on boot or periodically. Additionally,
# the pkg_postinst() call ensures that the directories are created
# on systems that do not support tmpfiles.d natively, without a need
# for explicit fallback.
#
# @EXAMPLE:
# Typical usage of this eclass:
#
# @CODE
# EAPI=6
# inherit tmpfiles
#
# ...
#
# src_install() {
# ...
# dotmpfiles "${FILESDIR}"/file1.conf "${FILESDIR}"/file2.conf
# newtmpfiles "${FILESDIR}"/file3.conf-${PV} file3.conf
# ...
# }
#
# pkg_postinst() {
# ...
# tmpfiles_process file1.conf file2.conf file3.conf
# ...
# }
#
# @CODE
if [[ -z ${TMPFILES_ECLASS} ]]; then
TMPFILES_ECLASS=1
case "${EAPI}" in
5|6|7) ;;
*) die "API is undefined for EAPI ${EAPI}" ;;
esac
RDEPEND="virtual/tmpfiles"
# @FUNCTION: dotmpfiles
# @USAGE: <tmpfiles.d_file> ...
# @DESCRIPTION:
# Install one or more tmpfiles.d files into /usr/lib/tmpfiles.d.
dotmpfiles() {
debug-print-function "${FUNCNAME}" "$@"
local f
for f; do
if [[ ${f} != *.conf ]]; then
die "tmpfiles.d files must end with .conf"
fi
done
(
insopts -m 0644
insinto /usr/lib/tmpfiles.d
doins "$@"
)
}
# @FUNCTION: newtmpfiles
# @USAGE: <old-name> <new-name>.conf
# @DESCRIPTION:
# Install a tmpfiles.d file in /usr/lib/tmpfiles.d under a new name.
newtmpfiles() {
debug-print-function "${FUNCNAME}" "$@"
if [[ $2 != *.conf ]]; then
die "tmpfiles.d files must end with .conf"
fi
(
insopts -m 0644
insinto /usr/lib/tmpfiles.d
newins "$@"
)
}
# @FUNCTION: tmpfiles_process
# @USAGE: <filename> <filename> ...
# @DESCRIPTION:
# Call a tmpfiles.d implementation to create new volatile and temporary
# files and directories.
tmpfiles_process() {
debug-print-function "${FUNCNAME}" "$@"
[[ ${EBUILD_PHASE} == postinst ]] || die "${FUNCNAME}: Only valid in pkg_postinst"
[[ ${#} -gt 0 ]] || die "${FUNCNAME}: Must specify at least one filename"
# Only process tmpfiles for the currently running system
if [[ ${ROOT:-/} != / ]]; then
ewarn "Warning: tmpfiles.d not processed on ROOT != /. If you do not use"
ewarn "a service manager supporting tmpfiles.d, you need to run"
ewarn "the following command after booting (or chroot-ing with all"
ewarn "appropriate filesystems mounted) into the ROOT:"
ewarn
ewarn " tmpfiles --create"
ewarn
ewarn "Failure to do so may result in missing runtime directories"
ewarn "and failures to run programs or start services."
return
fi
if type systemd-tmpfiles &> /dev/null; then
systemd-tmpfiles --create "$@"
elif type tmpfiles &> /dev/null; then
tmpfiles --create "$@"
fi
if [[ $? -ne 0 ]]; then
ewarn "The tmpfiles processor exited with a non-zero exit code"
fi
}
fi
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