aboutsummaryrefslogtreecommitdiffstats
path: root/meta/classes/systemd.bbclass
blob: b6a41764ce8ae0b5c6af4e3f1b8d84de6bf035fb (plain)
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
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
# The list of packages that should have systemd packaging scripts added.  For
# each entry, optionally have a SYSTEMD_SERVICE_[package] that lists the service
# files in this package.  If this variable isn't set, [package].service is used.
SYSTEMD_PACKAGES ?= "${PN}"
SYSTEMD_PACKAGES_class-native ?= ""
SYSTEMD_PACKAGES_class-nativesdk ?= ""

# Whether to enable or disable the services on installation.
SYSTEMD_AUTO_ENABLE ??= "enable"
SYSTEMD_USER_AUTO_ENABLE ??= "enable"

# This class will be included in any recipe that supports systemd init scripts,
# even if systemd is not in DISTRO_FEATURES.  As such don't make any changes
# directly but check the DISTRO_FEATURES first.
python __anonymous() {
    # If the distro features have systemd but not sysvinit, inhibit update-rcd
    # from doing any work so that pure-systemd images don't have redundant init
    # files.
    if bb.utils.contains('DISTRO_FEATURES', 'systemd', True, False, d):
        d.appendVar("DEPENDS", " systemd-systemctl-native")
        if not bb.utils.contains('DISTRO_FEATURES', 'sysvinit', True, False, d):
            d.setVar("INHIBIT_UPDATERCD_BBCLASS", "1")
}

systemd_postinst() {
OPTS=""

if [ -n "$D" ]; then
    OPTS="--root=$D"
fi

if type systemctl >/dev/null 2>/dev/null; then
	if [ "${SYSTEMD_SERVICE}" != "" ]; then
		systemctl $OPTS ${SYSTEMD_AUTO_ENABLE} ${SYSTEMD_SERVICE}
		if [ -z "$D" -a "${SYSTEMD_AUTO_ENABLE}" = "enable" ]; then
			systemctl restart ${SYSTEMD_SERVICE}
		fi
	fi
	if [ "${SYSTEMD_USER_SERVICE}" != "" ]; then
		systemctl $OPTS --global ${SYSTEMD_USER_AUTO_ENABLE} ${SYSTEMD_USER_SERVICE}
		if [ -z "$D" -a "${SYSTEMD_USER_AUTO_ENABLE}" = "enable" ]; then
			systemctl --global restart ${SYSTEMD_USER_SERVICE}
		fi
	fi
fi
}

systemd_prerm() {
OPTS=""

if [ -n "$D" ]; then
    OPTS="--root=$D"
fi

if type systemctl >/dev/null 2>/dev/null; then
	if [ "${SYSTEMD_SERVICE}" != "" ]; then
		if [ -z "$D" ]; then
			systemctl stop ${SYSTEMD_SERVICE}
		fi
		systemctl $OPTS disable ${SYSTEMD_SERVICE}
	fi
	if [ "${SYSTEMD_USER_SERVICE}" != "" ]; then
		if [ -z "$D" ]; then
			systemctl --global stop ${SYSTEMD_USER_SERVICE}
		fi
		systemctl $OPTS --global disable ${SYSTEMD_USER_SERVICE}
	fi
fi
}


systemd_populate_packages[vardeps] += "systemd_prerm systemd_postinst"
systemd_populate_packages[vardepsexclude] += "OVERRIDES"


python systemd_populate_packages() {
    import re

    if not bb.utils.contains('DISTRO_FEATURES', 'systemd', True, False, d):
        return

    def get_package_var(d, var, pkg):
        val = (d.getVar('%s_%s' % (var, pkg), True) or "").strip()
        if val == "":
            val = (d.getVar(var, True) or "").strip()
        return val

    # Check if systemd-packages already included in PACKAGES
    def systemd_check_package(pkg_systemd):
        packages = d.getVar('PACKAGES', True)
        if not pkg_systemd in packages.split():
            bb.error('%s does not appear in package list, please add it' % pkg_systemd)


    def systemd_generate_package_scripts(pkg):
        bb.debug(1, 'adding systemd calls to postinst/postrm for %s' % pkg)

        # Add pkg to the overrides so that it finds the SYSTEMD_SERVICE_pkg
        # variable.
        localdata = d.createCopy()
        localdata.prependVar("OVERRIDES", pkg + ":")
        bb.data.update_data(localdata)

        postinst = d.getVar('pkg_postinst_%s' % pkg, True)
        if not postinst:
            postinst = '#!/bin/sh\n'
        postinst += localdata.getVar('systemd_postinst', True)
        d.setVar('pkg_postinst_%s' % pkg, postinst)

        prerm = d.getVar('pkg_prerm_%s' % pkg, True)
        if not prerm:
            prerm = '#!/bin/sh\n'
        prerm += localdata.getVar('systemd_prerm', True)
        d.setVar('pkg_prerm_%s' % pkg, prerm)


    # Add files to FILES_*-systemd if existent and not already done
    def systemd_append_file(pkg_systemd, file_append):
        appended = False
        if os.path.exists(oe.path.join(d.getVar("D", True), file_append)):
            var_name = "FILES_" + pkg_systemd
            files = d.getVar(var_name, False) or ""
            if file_append not in files.split():
                d.appendVar(var_name, " " + file_append)
                appended = True
        return appended

    # Add systemd files to FILES_*-systemd, parse for Also= and follow recursive
    def systemd_add_files_and_parse(pkg_systemd, path, service, keys):
        # avoid infinite recursion
        if systemd_append_file(pkg_systemd, oe.path.join(path, service)):
            fullpath = oe.path.join(d.getVar("D", True), path, service)
            if service.find('.service') != -1:
                # for *.service add *@.service
                service_base = service.replace('.service', '')
                systemd_add_files_and_parse(pkg_systemd, path, service_base + '@.service', keys)
            if service.find('.socket') != -1:
                # for *.socket add *.service and *@.service
                service_base = service.replace('.socket', '')
                systemd_add_files_and_parse(pkg_systemd, path, service_base + '.service', keys)
                systemd_add_files_and_parse(pkg_systemd, path, service_base + '@.service', keys)
            for key in keys.split():
                # recurse all dependencies found in keys ('Also';'Conflicts';..) and add to files
                cmd = "grep %s %s | sed 's,%s=,,g' | tr ',' '\\n'" % (key, fullpath, key)
                pipe = os.popen(cmd, 'r')
                line = pipe.readline()
                while line:
                    line = line.replace('\n', '')
                    systemd_add_files_and_parse(pkg_systemd, path, line, keys)
                    line = pipe.readline()
                pipe.close()

    # Check service-files and call systemd_add_files_and_parse for each entry
    def systemd_check_services():
        searchpaths = [oe.path.join(d.getVar("sysconfdir", True), "systemd", "system"),]
        searchpaths.append(d.getVar("systemd_system_unitdir", True))
        searchpaths.append(oe.path.join(d.getVar("sysconfdir", True), "systemd", "user"))
        searchpaths.append(d.getVar("systemd_user_unitdir", True))
        systemd_packages = d.getVar('SYSTEMD_PACKAGES', True)

        keys = 'Also'
        # scan for all in SYSTEMD_SERVICE[]
        for pkg_systemd in systemd_packages.split():
            for service in (get_package_var(d, 'SYSTEMD_SERVICE', pkg_systemd) + get_package_var(d, 'SYSTEMD_USER_SERVICE', pkg_systemd)).split():
                path_found = ''

                # Deal with adding, for example, 'ifplugd@eth0.service' from
                # 'ifplugd@.service'
                base = None
                if service.find('@') != -1:
                    base = re.sub('@[^.]+.', '@.', service)

                for path in searchpaths:
                    if os.path.exists(oe.path.join(d.getVar("D", True), path, service)):
                        path_found = path
                        break
                    elif base is not None:
                        if os.path.exists(oe.path.join(d.getVar("D", True), path, base)):
                            path_found = path
                            break

                if path_found != '':
                    systemd_add_files_and_parse(pkg_systemd, path_found, service, keys)
                else:
                    raise bb.build.FuncFailed("SYSTEMD_SERVICE_%s or SYSTEMD_USER_SERVICE_%s value %s does not exist" % \
                        (pkg_systemd, pkg_systemd, service))

    # Run all modifications once when creating package
    if os.path.exists(d.getVar("D", True)):
        for pkg in d.getVar('SYSTEMD_PACKAGES', True).split():
            systemd_check_package(pkg)
            if d.getVar('SYSTEMD_SERVICE_' + pkg, True) or d.getVar('SYSTEMD_USER_SERVICE_' + pkg, True):
                systemd_generate_package_scripts(pkg)
        systemd_check_services()
}

PACKAGESPLITFUNCS_prepend = "systemd_populate_packages "

python rm_systemd_unitdir (){
    import shutil
    if not bb.utils.contains('DISTRO_FEATURES', 'systemd', True, False, d):
        systemd_unitdir = oe.path.join(d.getVar("D", True), d.getVar('systemd_unitdir', True))
        if os.path.exists(systemd_unitdir):
            shutil.rmtree(systemd_unitdir)
        systemd_libdir = os.path.dirname(systemd_unitdir)
        if (os.path.exists(systemd_libdir) and not os.listdir(systemd_libdir)):
            os.rmdir(systemd_libdir)
}
do_install[postfuncs] += "rm_systemd_unitdir "

python rm_sysvinit_initddir (){
    import shutil
    sysv_initddir = oe.path.join(d.getVar("D", True), (d.getVar('INIT_D_DIR', True) or "/etc/init.d"))

    if bb.utils.contains('DISTRO_FEATURES', 'systemd', True, False, d) and \
        not bb.utils.contains('DISTRO_FEATURES', 'sysvinit', True, False, d) and \
        os.path.exists(sysv_initddir):
        systemd_system_unitdir = oe.path.join(d.getVar("D", True), d.getVar('systemd_system_unitdir', True))

        # If systemd_system_unitdir contains anything, delete sysv_initddir
        if (os.path.exists(systemd_system_unitdir) and os.listdir(systemd_system_unitdir)):
            shutil.rmtree(sysv_initddir)
}
do_install[postfuncs] += "rm_sysvinit_initddir "