nixos/switch-to-configuration: Use parenthesis on all calls
This commit is contained in:
Janne Heß
parent
bc58430068
commit
461c1c9e86
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@ -10,6 +10,8 @@ use Net::DBus;
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use Sys::Syslog qw(:standard :macros);
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use Cwd 'abs_path';
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## no critic(CodeLayout::ProhibitParensWithBuiltins)
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my $out = "@out@";
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my $curSystemd = abs_path("/run/current-system/sw/bin");
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@ -36,13 +38,13 @@ my $dryReloadByActivationFile = "/run/nixos/dry-activation-reload-list";
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make_path("/run/nixos", { mode => oct(755) });
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my $action = shift @ARGV;
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my $action = shift(@ARGV);
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if ("@localeArchive@" ne "") {
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$ENV{LOCALE_ARCHIVE} = "@localeArchive@";
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}
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if (!defined $action || ($action ne "switch" && $action ne "boot" && $action ne "test" && $action ne "dry-activate")) {
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if (!defined($action) || ($action ne "switch" && $action ne "boot" && $action ne "test" && $action ne "dry-activate")) {
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print STDERR <<EOF;
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Usage: $0 [switch|boot|test]
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@ -51,27 +53,27 @@ boot: make the configuration the boot default
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test: activate the configuration, but don\'t make it the boot default
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dry-activate: show what would be done if this configuration were activated
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EOF
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exit 1;
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exit(1);
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}
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$ENV{NIXOS_ACTION} = $action;
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# This is a NixOS installation if it has /etc/NIXOS or a proper
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# /etc/os-release.
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die "This is not a NixOS installation!\n" unless
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die("This is not a NixOS installation!\n") unless
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-f "/etc/NIXOS" || (read_file("/etc/os-release", err_mode => 'quiet') // "") =~ /ID="?nixos"?/s;
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openlog("nixos", "", LOG_USER);
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# Install or update the bootloader.
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if ($action eq "switch" || $action eq "boot") {
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system("@installBootLoader@ $out") == 0 or exit 1;
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system('@installBootLoader@', $out) == 0 or exit 1;
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}
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# Just in case the new configuration hangs the system, do a sync now.
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system("@coreutils@/bin/sync", "-f", "/nix/store") unless ($ENV{"NIXOS_NO_SYNC"} // "") eq "1";
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exit 0 if $action eq "boot";
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exit(0) if $action eq "boot";
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# Check if we can activate the new configuration.
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my $oldVersion = read_file("/run/current-system/init-interface-version", err_mode => 'quiet') // "";
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@ -83,7 +85,7 @@ Warning: the new NixOS configuration has an ‘init’ that is
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incompatible with the current configuration. The new configuration
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won\'t take effect until you reboot the system.
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EOF
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exit 100;
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exit(100);
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}
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# Ignore SIGHUP so that we're not killed if we're running on (say)
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@ -110,7 +112,7 @@ sub unit_is_active {
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my $mgr = Net::DBus->system->get_service('org.freedesktop.systemd1')->get_object('/org/freedesktop/systemd1');
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my $units = $mgr->ListUnitsByNames([$unit_name]);
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if (@{$units} == 0) {
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if (scalar(@{$units}) == 0) {
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return 0;
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}
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my $active_state = $units->[0]->[3]; ## no critic (ValuesAndExpressions::ProhibitMagicNumbers)
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@ -121,10 +123,10 @@ sub parseFstab {
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my ($filename) = @_;
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my ($fss, $swaps);
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foreach my $line (read_file($filename, err_mode => 'quiet')) {
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chomp $line;
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chomp($line);
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$line =~ s/^\s*#.*//;
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next if $line =~ /^\s*$/;
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my @xs = split / /, $line;
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my @xs = split(/ /, $line);
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if ($xs[2] eq "swap") {
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$swaps->{$xs[0]} = { options => $xs[3] // "" };
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} else {
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@ -146,17 +148,16 @@ sub parseFstab {
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sub parseSystemdIni {
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my ($unitContents, $path) = @_;
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# Tie the ini file to a hash for easier access
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my %fileContents;
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tie %fileContents, "Config::IniFiles", (-file => $path, -allowempty => 1, -allowcontinue => 1);
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tie(my %fileContents, 'Config::IniFiles', (-file => $path, -allowempty => 1, -allowcontinue => 1)); ## no critic(Miscellanea::ProhibitTies)
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# Copy over all sections
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foreach my $sectionName (keys %fileContents) {
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foreach my $sectionName (keys(%fileContents)) {
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if ($sectionName eq "Install") {
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# Skip the [Install] section because it has no relevant keys for us
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next;
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}
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# Copy over all keys
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foreach my $iniKey (keys %{$fileContents{$sectionName}}) {
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foreach my $iniKey (keys(%{$fileContents{$sectionName}})) {
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# Ensure the value is an array so it's easier to work with
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my $iniValue = $fileContents{$sectionName}{$iniKey};
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my @iniValues;
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@ -194,7 +195,7 @@ sub parse_unit {
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# Replace \ with \\ so glob() still works with units that have a \ in them
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# Valid characters in unit names are ASCII letters, digits, ":", "-", "_", ".", and "\"
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$unit_path =~ s/\\/\\\\/gmsx;
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foreach (glob "${unit_path}{,.d/*.conf}") {
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foreach (glob("${unit_path}{,.d/*.conf}")) {
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parseSystemdIni(\%unit_data, "$_")
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}
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return %unit_data;
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@ -207,7 +208,7 @@ sub parseSystemdBool {
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my @values = @{$unitConfig->{$sectionName}{$boolName} // []};
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# Return default if value is not set
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if (scalar @values lt 1 || not defined $values[-1]) {
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if (scalar(@values) lt 1 || not defined($values[-1])) {
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return $default;
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}
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# If value is defined multiple times, use the last definition
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@ -224,7 +225,7 @@ sub recordUnit {
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# The opposite of recordUnit, removes a unit name from a file
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sub unrecord_unit {
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my ($fn, $unit) = @_;
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edit_file { s/^$unit\n//msx } $fn if $action ne "dry-activate";
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edit_file(sub { s/^$unit\n//msx }, $fn) if $action ne "dry-activate";
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}
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# Compare the contents of two unit files and return whether the unit
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@ -252,20 +253,20 @@ sub compare_units {
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my $comp_array = sub {
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my ($a, $b) = @_;
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return join("\0", @{$a}) eq join "\0", @{$b};
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return join("\0", @{$a}) eq join("\0", @{$b});
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};
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# Comparison hash for the sections
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my %section_cmp = map { $_ => 1 } keys %{$new_unit};
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my %section_cmp = map { $_ => 1 } keys(%{$new_unit});
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# Iterate over the sections
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foreach my $section_name (keys %{$old_unit}) {
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foreach my $section_name (keys(%{$old_unit})) {
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# Missing section in the new unit?
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if (not exists $section_cmp{$section_name}) {
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if (not exists($section_cmp{$section_name})) {
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# If the [Unit] section was removed, make sure that only keys
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# were in it that are ignored
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if ($section_name eq 'Unit') {
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foreach my $ini_key (keys %{$old_unit->{'Unit'}}) {
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if (not defined $unit_section_ignores{$ini_key}) {
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foreach my $ini_key (keys(%{$old_unit->{'Unit'}})) {
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if (not defined($unit_section_ignores{$ini_key})) {
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return 1;
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}
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}
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@ -283,15 +284,15 @@ sub compare_units {
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}
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delete $section_cmp{$section_name};
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# Comparison hash for the section contents
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my %ini_cmp = map { $_ => 1 } keys %{$new_unit->{$section_name}};
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my %ini_cmp = map { $_ => 1 } keys(%{$new_unit->{$section_name}});
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# Iterate over the keys of the section
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foreach my $ini_key (keys %{$old_unit->{$section_name}}) {
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foreach my $ini_key (keys(%{$old_unit->{$section_name}})) {
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delete $ini_cmp{$ini_key};
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my @old_value = @{$old_unit->{$section_name}{$ini_key}};
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# If the key is missing in the new unit, they are different...
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if (not $new_unit->{$section_name}{$ini_key}) {
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# ... unless the key that is now missing is one of the ignored keys
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if ($section_name eq 'Unit' and defined $unit_section_ignores{$ini_key}) {
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if ($section_name eq 'Unit' and defined($unit_section_ignores{$ini_key})) {
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next;
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}
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return 1;
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@ -304,7 +305,7 @@ sub compare_units {
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if ($ini_key eq 'X-Reload-Triggers') {
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$ret = 2;
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next;
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} elsif (defined $unit_section_ignores{$ini_key}) {
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} elsif (defined($unit_section_ignores{$ini_key})) {
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next;
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}
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}
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@ -314,10 +315,10 @@ sub compare_units {
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# A key was introduced that was missing in the old unit
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if (%ini_cmp) {
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if ($section_name eq 'Unit') {
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foreach my $ini_key (keys %ini_cmp) {
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foreach my $ini_key (keys(%ini_cmp)) {
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if ($ini_key eq 'X-Reload-Triggers') {
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$ret = 2;
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} elsif (defined $unit_section_ignores{$ini_key}) {
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} elsif (defined($unit_section_ignores{$ini_key})) {
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next;
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} else {
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return 1;
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@ -330,9 +331,9 @@ sub compare_units {
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}
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# A section was introduced that was missing in the old unit
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if (%section_cmp) {
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if (%section_cmp == 1 and defined $section_cmp{'Unit'}) {
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foreach my $ini_key (keys %{$new_unit->{'Unit'}}) {
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if (not defined $unit_section_ignores{$ini_key}) {
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if (%section_cmp == 1 and defined($section_cmp{'Unit'})) {
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foreach my $ini_key (keys(%{$new_unit->{'Unit'}})) {
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if (not defined($unit_section_ignores{$ini_key})) {
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return 1;
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} elsif ($ini_key eq 'X-Reload-Triggers') {
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$ret = 2;
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@ -393,11 +394,11 @@ sub handleModifiedUnit {
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my $socket_activated = 0;
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if ($unit =~ /\.service$/) {
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my @sockets = split(/ /, join(" ", @{$unitInfo{Service}{Sockets} // []}));
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if (scalar @sockets == 0) {
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if (scalar(@sockets) == 0) {
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@sockets = ("$baseName.socket");
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}
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foreach my $socket (@sockets) {
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if (defined $activePrev->{$socket}) {
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if (defined($activePrev->{$socket})) {
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# We can now be sure this is a socket-activate unit
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$unitsToStop->{$socket} = 1;
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@ -459,8 +460,8 @@ $unitsToRestart{$_} = 1 foreach
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$unitsToReload{$_} = 1 foreach
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split('\n', read_file($reloadListFile, err_mode => 'quiet') // "");
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my $activePrev = getActiveUnits;
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while (my ($unit, $state) = each %{$activePrev}) {
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my $activePrev = getActiveUnits();
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while (my ($unit, $state) = each(%{$activePrev})) {
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my $baseUnit = $unit;
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my $prevUnitFile = "/etc/systemd/system/$baseUnit";
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@ -520,9 +521,9 @@ while (my ($unit, $state) = each %{$activePrev}) {
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my %old_unit_info = parse_unit($prevUnitFile);
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my %new_unit_info = parse_unit($newUnitFile);
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my $diff = compare_units(\%old_unit_info, \%new_unit_info);
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if ($diff eq 1) {
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if ($diff == 1) {
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handleModifiedUnit($unit, $baseName, $newUnitFile, \%new_unit_info, $activePrev, \%unitsToStop, \%unitsToStart, \%unitsToReload, \%unitsToRestart, \%unitsToSkip);
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} elsif ($diff eq 2 and not $unitsToRestart{$unit}) {
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} elsif ($diff == 2 and not $unitsToRestart{$unit}) {
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$unitsToReload{$unit} = 1;
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recordUnit($reloadListFile, $unit);
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}
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@ -533,11 +534,11 @@ while (my ($unit, $state) = each %{$activePrev}) {
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sub pathToUnitName {
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my ($path) = @_;
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# Use current version of systemctl binary before daemon is reexeced.
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open my $cmd, "-|", "$curSystemd/systemd-escape", "--suffix=mount", "-p", $path
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open(my $cmd, "-|", "$curSystemd/systemd-escape", "--suffix=mount", "-p", $path)
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or die "Unable to escape $path!\n";
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my $escaped = join "", <$cmd>;
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chomp $escaped;
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close $cmd or die;
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my $escaped = join("", <$cmd>);
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chomp($escaped);
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close($cmd) or die('Unable to close systemd-escape pipe');
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return $escaped;
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}
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@ -546,13 +547,13 @@ sub pathToUnitName {
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# automatically by starting local-fs.target. FIXME: might be nicer if
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# we generated units for all mounts; then we could unify this with the
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# unit checking code above.
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my ($prevFss, $prevSwaps) = parseFstab "/etc/fstab";
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my ($newFss, $newSwaps) = parseFstab "$out/etc/fstab";
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foreach my $mountPoint (keys %$prevFss) {
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my ($prevFss, $prevSwaps) = parseFstab("/etc/fstab");
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my ($newFss, $newSwaps) = parseFstab("$out/etc/fstab");
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foreach my $mountPoint (keys(%$prevFss)) {
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my $prev = $prevFss->{$mountPoint};
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my $new = $newFss->{$mountPoint};
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my $unit = pathToUnitName($mountPoint);
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if (!defined $new) {
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if (!defined($new)) {
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# Filesystem entry disappeared, so unmount it.
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$unitsToStop{$unit} = 1;
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} elsif ($prev->{fsType} ne $new->{fsType} || $prev->{device} ne $new->{device}) {
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@ -568,10 +569,10 @@ foreach my $mountPoint (keys %$prevFss) {
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}
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# Also handles swap devices.
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foreach my $device (keys %$prevSwaps) {
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foreach my $device (keys(%$prevSwaps)) {
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my $prev = $prevSwaps->{$device};
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my $new = $newSwaps->{$device};
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if (!defined $new) {
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if (!defined($new)) {
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# Swap entry disappeared, so turn it off. Can't use
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# "systemctl stop" here because systemd has lots of alias
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# units that prevent a stop from actually calling
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@ -602,8 +603,8 @@ if ($prevSystemdSystemConfig ne $newSystemdSystemConfig) {
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sub filterUnits {
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my ($units) = @_;
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my @res;
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foreach my $unit (sort(keys %{$units})) {
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push @res, $unit if !defined $unitsToFilter{$unit};
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foreach my $unit (sort(keys(%{$units}))) {
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push(@res, $unit) if !defined($unitsToFilter{$unit});
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}
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return @res;
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}
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@ -614,9 +615,9 @@ my @unitsToStopFiltered = filterUnits(\%unitsToStop);
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# Show dry-run actions.
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if ($action eq "dry-activate") {
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print STDERR "would stop the following units: ", join(", ", @unitsToStopFiltered), "\n"
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if scalar @unitsToStopFiltered > 0;
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print STDERR "would NOT stop the following changed units: ", join(", ", sort(keys %unitsToSkip)), "\n"
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if scalar(keys %unitsToSkip) > 0;
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if scalar(@unitsToStopFiltered) > 0;
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print STDERR "would NOT stop the following changed units: ", join(", ", sort(keys(%unitsToSkip))), "\n"
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if scalar(keys(%unitsToSkip)) > 0;
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print STDERR "would activate the configuration...\n";
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system("$out/dry-activate", "$out");
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@ -637,7 +638,7 @@ if ($action eq "dry-activate") {
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$baseName =~ s/\.[a-z]*$//;
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# Start units if they were not active previously
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if (not defined $activePrev->{$unit}) {
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if (not defined($activePrev->{$unit})) {
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$unitsToStart{$unit} = 1;
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next;
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}
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@ -657,28 +658,28 @@ if ($action eq "dry-activate") {
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unlink($dryReloadByActivationFile);
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print STDERR "would restart systemd\n" if $restartSystemd;
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print STDERR "would reload the following units: ", join(", ", sort(keys %unitsToReload)), "\n"
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if scalar(keys %unitsToReload) > 0;
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print STDERR "would restart the following units: ", join(", ", sort(keys %unitsToRestart)), "\n"
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if scalar(keys %unitsToRestart) > 0;
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print STDERR "would reload the following units: ", join(", ", sort(keys(%unitsToReload))), "\n"
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if scalar(keys(%unitsToReload)) > 0;
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print STDERR "would restart the following units: ", join(", ", sort(keys(%unitsToRestart))), "\n"
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if scalar(keys(%unitsToRestart)) > 0;
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my @unitsToStartFiltered = filterUnits(\%unitsToStart);
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print STDERR "would start the following units: ", join(", ", @unitsToStartFiltered), "\n"
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if scalar @unitsToStartFiltered;
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if scalar(@unitsToStartFiltered);
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exit 0;
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}
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syslog(LOG_NOTICE, "switching to system configuration $out");
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if (scalar (keys %unitsToStop) > 0) {
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if (scalar(keys(%unitsToStop)) > 0) {
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print STDERR "stopping the following units: ", join(", ", @unitsToStopFiltered), "\n"
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if scalar @unitsToStopFiltered;
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if scalar(@unitsToStopFiltered);
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# Use current version of systemctl binary before daemon is reexeced.
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system("$curSystemd/systemctl", "stop", "--", sort(keys %unitsToStop));
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system("$curSystemd/systemctl", "stop", "--", sort(keys(%unitsToStop)));
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}
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print STDERR "NOT restarting the following changed units: ", join(", ", sort(keys %unitsToSkip)), "\n"
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if scalar(keys %unitsToSkip) > 0;
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print STDERR "NOT restarting the following changed units: ", join(", ", sort(keys(%unitsToSkip))), "\n"
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if scalar(keys(%unitsToSkip)) > 0;
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# Activate the new configuration (i.e., update /etc, make accounts,
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# and so on).
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@ -702,7 +703,7 @@ foreach (split('\n', read_file($restartByActivationFile, err_mode => 'quiet') //
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$baseName =~ s/\.[a-z]*$//;
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# Start units if they were not active previously
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if (not defined $activePrev->{$unit}) {
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if (not defined($activePrev->{$unit})) {
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$unitsToStart{$unit} = 1;
|
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recordUnit($startListFile, $unit);
|
||||
next;
|
||||
|
|
@ -739,7 +740,7 @@ system("@systemd@/bin/systemctl", "reset-failed");
|
|||
system("@systemd@/bin/systemctl", "daemon-reload") == 0 or $res = 3;
|
||||
|
||||
# Reload user units
|
||||
open my $listActiveUsers, '-|', '@systemd@/bin/loginctl', 'list-users', '--no-legend';
|
||||
open(my $listActiveUsers, '-|', '@systemd@/bin/loginctl', 'list-users', '--no-legend');
|
||||
while (my $f = <$listActiveUsers>) {
|
||||
next unless $f =~ /^\s*(?<uid>\d+)\s+(?<user>\S+)/;
|
||||
my ($uid, $name) = ($+{uid}, $+{user});
|
||||
|
|
@ -751,7 +752,7 @@ while (my $f = <$listActiveUsers>) {
|
|||
"@systemd@/bin/systemctl --user start nixos-activation.service");
|
||||
}
|
||||
|
||||
close $listActiveUsers;
|
||||
close($listActiveUsers);
|
||||
|
||||
# Set the new tmpfiles
|
||||
print STDERR "setting up tmpfiles\n";
|
||||
|
|
@ -760,8 +761,8 @@ system("@systemd@/bin/systemd-tmpfiles", "--create", "--remove", "--exclude-pref
|
|||
# Before reloading we need to ensure that the units are still active. They may have been
|
||||
# deactivated because one of their requirements got stopped. If they are inactive
|
||||
# but should have been reloaded, the user probably expects them to be started.
|
||||
if (scalar(keys %unitsToReload) > 0) {
|
||||
for my $unit (keys %unitsToReload) {
|
||||
if (scalar(keys(%unitsToReload)) > 0) {
|
||||
for my $unit (keys(%unitsToReload)) {
|
||||
if (!unit_is_active($unit)) {
|
||||
# Figure out if we need to start the unit
|
||||
my %unit_info = parse_unit("$out/etc/systemd/system/$unit");
|
||||
|
|
@ -777,17 +778,17 @@ if (scalar(keys %unitsToReload) > 0) {
|
|||
}
|
||||
# Reload units that need it. This includes remounting changed mount
|
||||
# units.
|
||||
if (scalar(keys %unitsToReload) > 0) {
|
||||
print STDERR "reloading the following units: ", join(", ", sort(keys %unitsToReload)), "\n";
|
||||
system("@systemd@/bin/systemctl", "reload", "--", sort(keys %unitsToReload)) == 0 or $res = 4;
|
||||
if (scalar(keys(%unitsToReload)) > 0) {
|
||||
print STDERR "reloading the following units: ", join(", ", sort(keys(%unitsToReload))), "\n";
|
||||
system("@systemd@/bin/systemctl", "reload", "--", sort(keys(%unitsToReload))) == 0 or $res = 4;
|
||||
unlink($reloadListFile);
|
||||
}
|
||||
|
||||
# Restart changed services (those that have to be restarted rather
|
||||
# than stopped and started).
|
||||
if (scalar(keys %unitsToRestart) > 0) {
|
||||
print STDERR "restarting the following units: ", join(", ", sort(keys %unitsToRestart)), "\n";
|
||||
system("@systemd@/bin/systemctl", "restart", "--", sort(keys %unitsToRestart)) == 0 or $res = 4;
|
||||
if (scalar(keys(%unitsToRestart)) > 0) {
|
||||
print STDERR "restarting the following units: ", join(", ", sort(keys(%unitsToRestart))), "\n";
|
||||
system("@systemd@/bin/systemctl", "restart", "--", sort(keys(%unitsToRestart))) == 0 or $res = 4;
|
||||
unlink($restartListFile);
|
||||
}
|
||||
|
||||
|
|
@ -799,17 +800,17 @@ if (scalar(keys %unitsToRestart) > 0) {
|
|||
# systemd.
|
||||
my @unitsToStartFiltered = filterUnits(\%unitsToStart);
|
||||
print STDERR "starting the following units: ", join(", ", @unitsToStartFiltered), "\n"
|
||||
if scalar @unitsToStartFiltered;
|
||||
system("@systemd@/bin/systemctl", "start", "--", sort(keys %unitsToStart)) == 0 or $res = 4;
|
||||
if scalar(@unitsToStartFiltered);
|
||||
system("@systemd@/bin/systemctl", "start", "--", sort(keys(%unitsToStart))) == 0 or $res = 4;
|
||||
unlink($startListFile);
|
||||
|
||||
|
||||
# Print failed and new units.
|
||||
my (@failed, @new);
|
||||
my $activeNew = getActiveUnits;
|
||||
while (my ($unit, $state) = each %{$activeNew}) {
|
||||
my $activeNew = getActiveUnits();
|
||||
while (my ($unit, $state) = each(%{$activeNew})) {
|
||||
if ($state->{state} eq "failed") {
|
||||
push @failed, $unit;
|
||||
push(@failed, $unit);
|
||||
next;
|
||||
}
|
||||
|
||||
|
|
@ -819,7 +820,7 @@ while (my ($unit, $state) = each %{$activeNew}) {
|
|||
chomp($main_status);
|
||||
|
||||
if ($main_status ne "0") {
|
||||
push @failed, $unit;
|
||||
push(@failed, $unit);
|
||||
next;
|
||||
}
|
||||
}
|
||||
|
|
@ -827,19 +828,19 @@ while (my ($unit, $state) = each %{$activeNew}) {
|
|||
# Ignore scopes since they are not managed by this script but rather
|
||||
# created and managed by third-party services via the systemd dbus API.
|
||||
# This only lists units that are not failed (including ones that are in auto-restart but have not failed previously)
|
||||
if ($state->{state} ne "failed" && !defined $activePrev->{$unit} && $unit !~ /\.scope$/msx) {
|
||||
push @new, $unit;
|
||||
if ($state->{state} ne "failed" && !defined($activePrev->{$unit}) && $unit !~ /\.scope$/msx) {
|
||||
push(@new, $unit);
|
||||
}
|
||||
}
|
||||
|
||||
if (scalar @new > 0) {
|
||||
if (scalar(@new) > 0) {
|
||||
print STDERR "the following new units were started: ", join(", ", sort(@new)), "\n"
|
||||
}
|
||||
|
||||
if (scalar @failed > 0) {
|
||||
my @failed_sorted = sort @failed;
|
||||
if (scalar(@failed) > 0) {
|
||||
my @failed_sorted = sort(@failed);
|
||||
print STDERR "warning: the following units failed: ", join(", ", @failed_sorted), "\n\n";
|
||||
system "@systemd@/bin/systemctl status --no-pager --full '" . join("' '", @failed_sorted) . "' >&2";
|
||||
system("@systemd@/bin/systemctl status --no-pager --full '" . join("' '", @failed_sorted) . "' >&2");
|
||||
$res = 4;
|
||||
}
|
||||
|
||||
|
|
@ -849,4 +850,4 @@ if ($res == 0) {
|
|||
syslog(LOG_ERR, "switching to system configuration $out failed (status $res)");
|
||||
}
|
||||
|
||||
exit $res;
|
||||
exit($res);
|
||||
|
|
|
|||
Loading…
Reference in a new issue