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140 lines
3.6 KiB
140 lines
3.6 KiB
# Copyright 1999-2018 Gentoo Foundation
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# Distributed under the terms of the GNU General Public License v2
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# @ECLASS: tmpfiles.eclass
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# @MAINTAINER:
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# Gentoo systemd project <systemd@gentoo.org>
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# William Hubbs <williamh@gentoo.org>
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# @AUTHOR:
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# Mike Gilbert <floppym@gentoo.org>
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# William Hubbs <williamh@gentoo.org>
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# @SUPPORTED_EAPIS: 5 6
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# @BLURB: Functions related to tmpfiles.d files
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# @DESCRIPTION:
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# This eclass provides functionality related to installing and
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# creating volatile and temporary files based on configuration files$and
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# locations defined at this URL:
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#
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# https://www.freedesktop.org/software/systemd/man/tmpfiles.d.html
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#
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# The dotmpfiles and newtmpfiles functions are used to install
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# configuration files into /usr/lib/tmpfiles.d, then in pkg_postinst,
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# the tmpfiles_process function must be called to process the newly
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# installed tmpfiles.d entries.
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#
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# The tmpfiles.d files can be used by service managers to recreate/clean
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# up temporary directories on boot or periodically. Additionally,
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# the pkg_postinst() call ensures that the directories are created
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# on systems that do not support tmpfiles.d natively, without a need
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# for explicit fallback.
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#
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# @EXAMPLE:
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# Typical usage of this eclass:
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#
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# @CODE
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# EAPI=6
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# inherit tmpfiles
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#
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# ...
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#
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# src_install() {
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# ...
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# dotmpfiles "${FILESDIR}"/file1.conf "${FILESDIR}"/file2.conf
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# newtmpfiles "${FILESDIR}"/file3.conf-${PV} file3.conf
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# ...
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# }
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#
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# pkg_postinst() {
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# ...
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# tmpfiles_process file1.conf file2.conf file3.conf
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# ...
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# }
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#
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# @CODE
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if [[ -z ${TMPFILES_ECLASS} ]]; then
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TMPFILES_ECLASS=1
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case "${EAPI}" in
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5|6) ;;
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*) die "API is undefined for EAPI ${EAPI}" ;;
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esac
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RDEPEND="virtual/tmpfiles"
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# @FUNCTION: dotmpfiles
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# @USAGE: dotmpfiles <tmpfiles.d_file> ...
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# @DESCRIPTION:
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# Install one or more tmpfiles.d files into /usr/lib/tmpfiles.d.
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dotmpfiles() {
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debug-print-function "${FUNCNAME}" "$@"
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local f
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for f; do
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if [[ ${f} != *.conf ]]; then
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die "tmpfiles.d files must end with .conf"
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fi
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done
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(
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insopts -m 0644
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insinto /usr/lib/tmpfiles.d
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doins "$@"
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)
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}
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# @FUNCTION: newtmpfiles
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# @USAGE: newtmpfiles <old-name> <new-name>.conf
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# @DESCRIPTION:
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# Install a tmpfiles.d file in /usr/lib/tmpfiles.d under a new name.
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newtmpfiles() {
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debug-print-function "${FUNCNAME}" "$@"
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if [[ $2 != *.conf ]]; then
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die "tmpfiles.d files must end with .conf"
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fi
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(
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insopts -m 0644
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insinto /usr/lib/tmpfiles.d
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newins "$@"
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)
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}
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# @FUNCTION: tmpfiles_process
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# @USAGE: tmpfiles_process <filename> <filename> ...
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# @DESCRIPTION:
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# Call a tmpfiles.d implementation to create new volatile and temporary
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# files and directories.
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tmpfiles_process() {
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debug-print-function "${FUNCNAME}" "$@"
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[[ ${EBUILD_PHASE} == postinst ]] || die "${FUNCNAME}: Only valid in pkg_postinst"
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[[ ${#} -gt 0 ]] || die "${FUNCNAME}: Must specify at least one filename"
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# Only process tmpfiles for the currently running system
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if [[ ${ROOT} != / ]]; then
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ewarn "Warning: tmpfiles.d not processed on ROOT != /. If you do not use"
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ewarn "a service manager supporting tmpfiles.d, you need to run"
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ewarn "the following command after booting (or chroot-ing with all"
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ewarn "appropriate filesystems mounted) into the ROOT:"
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ewarn
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ewarn " tmpfiles --create"
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ewarn
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ewarn "Failure to do so may result in missing runtime directories"
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ewarn "and failures to run programs or start services."
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return
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fi
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if type systemd-tmpfiles &> /dev/null; then
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systemd-tmpfiles --create "$@"
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elif type tmpfiles &> /dev/null; then
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tmpfiles --create "$@"
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fi
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if [[ $? -ne 0 ]]; then
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ewarn "The tmpfiles processor exited with a non-zero exit code"
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fi
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}
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fi
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