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Revision 1.9 - (show annotations) (download)
Sat Sep 17 13:48:21 2011 UTC (3 years, 3 months ago) by mgorny
Branch: MAIN
Changes since 1.8: +13 -7 lines
Clean up, fix and simplify prefix support.

1 # Copyright 1999-2011 Gentoo Foundation
2 # Distributed under the terms of the GNU General Public License v2
3 # $Header: /var/cvsroot/gentoo-x86/eclass/systemd.eclass,v 1.8 2011/08/29 01:28:10 vapier Exp $
4
5 # @ECLASS: systemd.eclass
6 # @MAINTAINER:
7 # mgorny@gentoo.org
8 # @BLURB: helper functions to install systemd units
9 # @DESCRIPTION:
10 # This eclass provides a set of functions to install unit files for
11 # sys-apps/systemd within ebuilds.
12 # @EXAMPLE:
13 #
14 # @CODE
15 # inherit autotools-utils systemd
16 #
17 # src_configure() {
18 # local myeconfargs=(
19 # --enable-foo
20 # --disable-bar
21 # )
22 #
23 # systemd_to_myeconfargs
24 # autotools-utils_src_configure
25 # }
26 # @CODE
27
28 case ${EAPI:-0} in
29 0|1|2|3|4) ;;
30 *) die "${ECLASS}.eclass API in EAPI ${EAPI} not yet established."
31 esac
32
33 # @FUNCTION: _systemd_get_unitdir
34 # @INTERNAL
35 # @DESCRIPTION:
36 # Get unprefixed unitdir.
37 _systemd_get_unitdir() {
38 echo -n /lib/systemd/system
39 }
40
41 # @FUNCTION: systemd_get_unitdir
42 # @DESCRIPTION:
43 # Output the path for the systemd unit directory (not including ${D}).
44 # This function always succeeds, even if systemd is not installed.
45 systemd_get_unitdir() {
46 has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
47 debug-print-function ${FUNCNAME} "${@}"
48
49 echo -n "${EPREFIX}$(_systemd_get_unitdir)"
50 }
51
52 # @FUNCTION: systemd_dounit
53 # @USAGE: unit1 [...]
54 # @DESCRIPTION:
55 # Install systemd unit(s). Uses doins, thus it is fatal in EAPI 4
56 # and non-fatal in earlier EAPIs.
57 systemd_dounit() {
58 debug-print-function ${FUNCNAME} "${@}"
59
60 (
61 insinto "$(_systemd_get_unitdir)"
62 doins "${@}"
63 )
64 }
65
66 # @FUNCTION: systemd_newunit
67 # @USAGE: oldname newname
68 # @DESCRIPTION:
69 # Install systemd unit with a new name. Uses newins, thus it is fatal
70 # in EAPI 4 and non-fatal in earlier EAPIs.
71 systemd_newunit() {
72 debug-print-function ${FUNCNAME} "${@}"
73
74 (
75 insinto "$(_systemd_get_unitdir)"
76 newins "${@}"
77 )
78 }
79
80 # @FUNCTION: systemd_dotmpfilesd
81 # @USAGE: tmpfilesd1 [...]
82 # @DESCRIPTION:
83 # Install systemd tmpfiles.d files. Uses doins, thus it is fatal
84 # in EAPI 4 and non-fatal in earlier EAPIs.
85 systemd_dotmpfilesd() {
86 debug-print-function ${FUNCNAME} "${@}"
87
88 (
89 insinto /usr/lib/tmpfiles.d/
90 doins "${@}"
91 )
92 }
93
94 # @FUNCTION: systemd_enable_service
95 # @USAGE: target service
96 # @DESCRIPTION:
97 # Enable service in desired target, e.g. install a symlink for it.
98 # Uses dosym, thus it is fatal in EAPI 4 and non-fatal in earlier
99 # EAPIs.
100 systemd_enable_service() {
101 debug-print-function ${FUNCNAME} "${@}"
102
103 [[ ${#} -eq 2 ]] || die "Synopsis: systemd_enable_service target service"
104
105 local target=${1}
106 local service=${2}
107 local ud=$(_systemd_get_unitdir)
108
109 dodir "${ud}"/"${target}".wants && \
110 dosym ../"${service}" "${ud}"/"${target}".wants
111 }
112
113 # @FUNCTION: systemd_with_unitdir
114 # @USAGE: [configure option]
115 # @DESCRIPTION:
116 # Output '--with-systemdsystemunitdir' as expected by systemd-aware configure
117 # scripts. This function always succeeds. Its output may be quoted in order
118 # to preserve whitespace in paths. systemd_to_myeconfargs() is preferred over
119 # this function.
120 #
121 # If upstream does use invalid configure option to handle installing systemd
122 # units (e.g. `--with-systemdunitdir'), you can pass the 'suffix' as an optional
123 # argument to this function (`$(systemd_with_unitdir systemdunitdir)'). Please
124 # remember to report a bug upstream as well.
125 systemd_with_unitdir() {
126 debug-print-function ${FUNCNAME} "${@}"
127 local optname=${1:-systemdsystemunitdir}
128
129 echo -n --with-${optname}="$(systemd_get_unitdir)"
130 }
131
132 # @FUNCTION: systemd_to_myeconfargs
133 # @DESCRIPTION:
134 # Add '--with-systemdsystemunitdir' as expected by systemd-aware configure
135 # scripts to the myeconfargs variable used by autotools-utils eclass. Handles
136 # quoting automatically.
137 systemd_to_myeconfargs() {
138 debug-print-function ${FUNCNAME} "${@}"
139
140 myeconfargs=(
141 "${myeconfargs[@]}"
142 --with-systemdsystemunitdir="$(systemd_get_unitdir)"
143 )
144 }

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