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|
#!/usr/bin/perl -w
=head1 NAME
dh_installtmpfiles - install tmpfiles.d configuration files
=cut
use strict;
use warnings;
use Debian::Debhelper::Dh_Lib;
use File::Find;
our $VERSION = DH_BUILTIN_VERSION;
=head1 SYNOPSIS
B<dh_installtmpfiles> [S<I<debhelper options>>][B<--name=>I<name>]
=head1 DESCRIPTION
B<dh_installtmpfiles> is a debhelper program that is responsible for
installing package maintainer supplied tmpfiles.d configuration files
(e.g. for systemd-tmpfiles).
It also finds the tmpfiles.d configuration files installed by a package
and generates F<postinst> code blocks for activating the tmpfiles.d
configuration when the package is installed. These snippets are added
to the maintainer scripts by L<dh_installdeb(1)>.
In compat 14+, tmpfiles.d files are copied into the F<postrm> script, and
they are used with systemd-tmpfiles --remove after the package is removed
and --purge when the package is purged. This allows one to use the
tmpfiles.d mechanism to clean up files that are no longer needed after a
package has been removed/purged.
=head1 OPTIONS
=over 4
=item B<--name=>I<name>
This option controls both a prefix used for looking up maintainer provided
tmpfiles.d configuration files (those mentioned in the L</FILES> section)
and also the base name used for the installed version of the file.
=back
=head1 FILES
=over 4
=item debian/I<package>.tmpfiles
If this exists, it is installed into F<usr/lib/tmpfiles.d/> in the
package build directory. Note that the C<tmpfiles.d> mechanism is
currently only used by systemd.
=item debian/I<package>.tmpfile
Deprecated name for debian/I<package>.tmpfiles.
=back
=head1 NOTES
This command is not idempotent. L<dh_prep(1)> should be called between
invocations of this command (with the same arguments). Otherwise, it
may cause multiple instances of the same text to be added to
maintainer scripts.
=cut
init();
sub uniq {
my %seen;
return grep { !$seen{$_}++ } @_;
}
# PROMISE: DH NOOP WITHOUT tmp(usr/lib/tmpfiles.d) tmp(etc/tmpfiles.d) pkgfile(tmpfiles) pkgfile(tmpfile) cli-options()
# Install package maintainer supplied tmpfiles files
foreach my $package (@{$dh{DOPACKAGES}}) {
my $tmpdir = tmpdir($package);
my $tmpfile = pkgfile({'named' => 1}, $package, 'tmpfiles');
my $name = $dh{NAME} // $package;
my $old_tmpfile = pkgfile({'named' => 1}, $package, 'tmpfile');
my $dir;
if (not $tmpfile) {
my $new_name;
next if not $old_tmpfile;
$tmpfile = $old_tmpfile;
$new_name = $old_tmpfile;
$new_name =~ s{^(.+[./])tmpfile(\..+|)$}{$1tmpfiles$2};
warning("The name $tmpfile is deprecated; please use $new_name instead");
warning(qq{Possible fix: mv -f "${tmpfile}" "${new_name}"});
} elsif ($old_tmpfile) {
warning("There is both a $tmpfile and a $old_tmpfile that is relevant for this package!?");
warning(qq{Possible fix: rm -f "${old_tmpfile}"});
error("Aborting; Please resolve the ambiguity between ${tmpfile} and ${old_tmpfile}.");
}
$dir = "$tmpdir/usr/lib/tmpfiles.d";
install_dir($dir);
install_file($tmpfile, "${dir}/${name}.conf");
}
# Add postinst code blocks to handle tmpfiles
foreach my $package (@{$dh{DOPACKAGES}}) {
my $tmpdir = tmpdir($package);
my @tmpfiles;
my @purge;
my @remove;
my @dirs = grep { -d } map { "${tmpdir}/$_" } qw(usr/lib/tmpfiles.d etc/tmpfiles.d);
find({
wanted => sub {
my $lines;
my $name = $File::Find::name;
return if not -f $name or not $name =~ m{[.]conf$};
push(@tmpfiles, basename($name));
# We copy the needed lines to the postrm, as the tmpfiles.d files
# will be gone by the time the remove/purge postscript is run.
if (! compat(13) && (! $dh{NO_PURGE} || ! $dh{NO_REMOVE})) {
open(my $fd, '<', $name) or error("open($name) failed: $!");
{
local $/;
$lines = <$fd>;
}
close($fd);
chomp $lines;
if ($lines) {
push(@purge, $lines);
push(@remove, $lines);
}
}
},
no_chdir => 1,
}, @dirs) if @dirs;
if (@tmpfiles) {
autoscript($package, 'postinst', 'postinst-init-tmpfiles', { 'TMPFILES' => join(' ', uniq(sort(@tmpfiles))) });
}
if (@remove) {
autoscript($package, 'postrm', 'postrm-init-tmpfiles-remove', {
'TMPFILES_REMOVE' => join("\n", @remove),
});
}
if (@purge) {
autoscript($package, 'postrm', 'postrm-init-tmpfiles-purge', {
'TMPFILES_PURGE' => join("\n", @purge),
});
}
}
=head1 SEE ALSO
L<debhelper(7)>
=cut
|
