Commit d360705f authored by Lennart Poettering's avatar Lennart Poettering
Browse files

system-update: add system update generator

http://freedesktop.org/wiki/Software/systemd/SystemUpdates
parent 5ad661b6
/systemd-system-update-generator
/systemd-fstab-generator
/systemd-delta
/systemd-sleep
......
......@@ -238,7 +238,8 @@ rootlibexec_PROGRAMS = \
systemgenerator_PROGRAMS = \
systemd-getty-generator \
systemd-fstab-generator
systemd-fstab-generator \
systemd-system-update-generator
dist_bashcompletion_DATA = \
bash-completion/systemd-bash-completion.sh
......@@ -306,7 +307,8 @@ dist_systemunit_DATA = \
units/syslog.target \
units/systemd-udev-control.socket \
units/systemd-udev-kernel.socket \
units/systemd-timedated-ntp.target
units/systemd-timedated-ntp.target \
units/system-update.target
nodist_systemunit_DATA = \
units/getty@.service \
......@@ -1143,6 +1145,14 @@ systemd_fstab_generator_LDADD = \
libsystemd-label.la \
libsystemd-shared.la
# ------------------------------------------------------------------------------
systemd_system_update_generator_SOURCES = \
src/system-update-generator/system-update-generator.c
systemd_system_update_generator_LDADD = \
libsystemd-label.la \
libsystemd-shared.la
# ------------------------------------------------------------------------------
systemd_rc_local_generator_SOURCES = \
src/rc-local-generator/rc-local-generator.c
......
../Makefile
\ No newline at end of file
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
Copyright 2012 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <errno.h>
#include <unistd.h>
#include "log.h"
#include "util.h"
#include "unit-name.h"
#include "path-util.h"
static const char *arg_dest = "/tmp";
static int generate_symlink(void) {
struct stat st;
char *p;
if (lstat("/system-update", &st) < 0) {
if (errno == ENOENT)
return 0;
log_error("Failed to check for system update: %m");
return -EINVAL;
}
p = strappend(arg_dest, "/default.target");
if (!p) {
log_error("Out of memory.");
return -ENOMEM;
}
if (symlink(SYSTEM_DATA_UNIT_PATH "/system-update.target", p) < 0) {
free(p);
log_error("Failed to create symlink: %m");
return -errno;
}
free(p);
return 0;
}
int main(int argc, char *argv[]) {
int r;
if (argc > 2) {
log_error("This program takes one or no arguments.");
return EXIT_FAILURE;
}
if (argc > 1)
arg_dest = argv[1];
log_set_target(LOG_TARGET_AUTO);
log_parse_environment();
log_open();
umask(0022);
r = generate_symlink();
return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
}
# This file is part of systemd.
#
# systemd is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 2.1 of the License, or
# (at your option) any later version.
[Unit]
Description=System Update
Documentation=http://freedesktop.org/wiki/Software/systemd/SystemUpdates
Documentation=man:systemd.special(7)
Requires=sysinit.target
Conflicts=shutdown.target
After=sysinit.target
Before=shutdown.target
AllowIsolate=yes
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