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#!/usr/bin/perl -w
=head1 NAME
dh_runit - install/enable runit runscripts
=cut
use strict;
use Debian::Debhelper::Dh_Lib;
use File::Find;
use File::stat;
use feature 'signatures';
no warnings 'experimental::signatures';
=head1 SYNOPSIS
B<dh_runit> [S<I<debhelper options>>] [B<--no-enable>]
=head1 DESCRIPTION
B<dh_runit> is a debhelper program that is responsible for
installing and enabling I<runit> runscripts. If file named
F<debian/I<package>.runit> exists, then different actions
are performed, depending on its format.
For runit, every unit of supervision, simply speaking program, is
represented by directory under F</etc/sv>, containing at least F<run>
executable file. Every enabled program is represented by symbolic link
under F</etc/services> pointing to some directory under F</etc/sv>.
If F<debian/I<package>.runit> is not executable, but contains shebang
(#!) in first line, it is installed as F</etc/sv/I<package>/run> and
enabled.
Alternatively, F<debian/I<package>.runit> is a list of lines, where
every line is either starts with hash symbol and considered comment,
or contains two or three space-separated words.
# In this case file is installed as 'run' script. Directory name under
# /etc/sv is derived from file basename
enable path/to/file/to/be/installed/as/run/script
# Same, but install directory as whole. It is your responsibility
# to ensure is contains everything required.
enable path/to/directory
# Same as above, but do not create symlink under /etc/service
disable path/to/directory
# Also, you can explicitly specify name of directory under /etc/sv
enable path/to/directory my-preferred-name
=head1 OPTIONS
=over 4
=item B<--no-enable>
Do not enable any runscripts. Useful, when F<debian/I<package>.runit>
is the only runscript, in which case you have no other ways to
specify, that it should not be enabled.
=back
=cut
sub ensure_executable($directory) {
for my $f ('run', 'finish', 'log/run', 'log/finish') {
my $file = "$directory/$f";
doit('chmod', '+x', $file) if (-e $file);
}
}
init(option => { 'no-enable' => \$dh{NO_ENABLE} });
PKG: foreach my $pkg (@{$dh{DOPACKAGES}}) {
next if is_udeb($pkg);
my $tmp = tmpdir($pkg);
my $sv_dir = "$tmp/etc/sv";
my $runit = pkgfile($pkg, 'runit');
next unless $runit;
doit('install', '-d', $sv_dir);
for my $words (filedoublearray($runit)) {
(my $enable, my $path, my $name) = @{$words};
$name = $name || basename($path);
error("can't read `$path'") unless -r $path;
if ( -f $path) {
install_dir("$sv_dir/$name");
install_prog($path, "$sv_dir/$name/run");
} elsif ( -d $path) {
doit('cp', '-r', $path, "$sv_dir/$name");
# Unfortunately, dh_fixperms does not handle executable bit here.
ensure_executable("$sv_dir/$name");
}
make_symlink("/etc/sv/$name/supervise",
"/var/lib/runit/supervise/$name", $tmp);
if ($enable eq 'enable' && !$dh{NO_ENABLE}) {
autoscript($pkg, 'postinst', 'postinst-runit', "s/#NAME#/$name/");
}
autoscript($pkg, 'prerm', 'prerm-runit', "s/#NAME#/$name/");
}
}
# PROMISE: DH NOOP WITHOUT runit
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