0fc68a3d1d
This will make it more efficient to do systemd dependency graph processing (if necessary).
58 lines
1.7 KiB
Perl
58 lines
1.7 KiB
Perl
#! @perl@
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use strict;
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use warnings;
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use File::Slurp;
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my $action = shift @ARGV;
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if (!defined $action || ($action ne "switch" && $action ne "boot" && $action ne "test")) {
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print STDERR <<EOF;
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Usage: $0 [switch|boot|test]
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switch: make the configuration the boot default and activate now
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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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EOF
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exit 1;
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}
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die "This is not a NixOS installation (/etc/NIXOS is missing)!\n" unless -f "/etc/NIXOS";
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# Install or update the bootloader.
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#system("@installBootLoader@ @out@") == 0 or exit 1 if $action eq "switch" || $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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my $newVersion = read_file("@out@/init-interface-version");
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if ($newVersion ne $oldVersion) {
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print STDERR <<EOF;
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Warning: the new NixOS configuration has an ‘init’ that is
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incompatible with the current configuration. The new configuration
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won\'t take effect until you reboot the system.
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EOF
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exit 100;
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}
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# Ignore SIGHUP so that we're not killed if we're running on (say)
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# virtual console 1 and we restart the "tty1" unit.
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$SIG{PIPE} = "IGNORE";
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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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my $res = 0;
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print STDERR "activating the configuration...\n";
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system("@out@/activate", "@out@") == 0 or $res = 2;
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# FIXME: Re-exec systemd if necessary.
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# Make systemd reload its units.
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system("@systemd@/bin/systemctl", "daemon-reload") == 0 or $res = 3;
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# Signal dbus to reload its configuration.
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system("@systemd@/bin/systemctl", "reload", "dbus.service");
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exit $res;
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