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switch-to-configuration: Restart services that were manually started

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This commit is contained in:
Eelco Dolstra 2012-08-03 11:53:14 -04:00
parent 56ce5614f9
commit b6bd0a4f84
1 changed files with 18 additions and 1 deletions
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19
modules/system/activation/switch-to-configuration.pl
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@ -6,6 +6,8 @@ use File::Basename;
use File::Slurp;
use Cwd 'abs_path';
my $restartListFile = "/run/systemd/restart-list";
my $action = shift @ARGV;
if (!defined $action || ($action ne "switch" && $action ne "boot" && $action ne "test")) {
@ -75,6 +77,10 @@ foreach my $unitFile (glob "/etc/systemd/system/*") {
system("@systemd@/bin/systemctl", "stop", $unit); # FIXME: ignore errors?
} elsif (abs_path($unitFile) ne abs_path($newUnitFile)) {
print STDERR "stopping changed unit ‘$unit’...\n";
# Record that this unit needs to be started below. We
# write this to a file to ensure that the service gets
# restarted if we're interrupted.
write_file($restartListFile, { append => 1 }, "$unit\n");
system("@systemd@/bin/systemctl", "stop", $unit); # FIXME: ignore errors?
}
}
@ -92,10 +98,21 @@ system("@out@/activate", "@out@") == 0 or $res = 2;
system("@systemd@/bin/systemctl", "daemon-reload") == 0 or $res = 3;
# Start all units required by the default target. This should start
# all changed units we stopped above as well as any new dependencies.
# most changed units we stopped above as well as any new dependencies.
print STDERR "starting default target...\n";
system("@systemd@/bin/systemctl", "start", "default.target") == 0 or $res = 4;
# Start changed units we stopped above. This is necessary because
# some may not be dependencies of the default target (i.e., they were
# manually started).
my @stopped = split '\n', read_file($restartListFile, err_mode => 'quiet') // "";
if (scalar @stopped > 0) {
print STDERR "restarting unit(s) ", join(" ", @stopped), "...\n";
my %unique = map { $_, 1 } @stopped;
system("@systemd@/bin/systemctl", "start", keys(%unique)) == 0 or $res = 4;
unlink($restartListFile);
}
# Signal dbus to reload its configuration.
system("@systemd@/bin/systemctl", "reload", "dbus.service");