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#!/usr/bin/perl
# Copyright © 2022 Felix Lechner <felix.lechner@lease-up.com>
#
# based on a shell script by the same name
# Arjan Oosting <arjan@debian.org>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
use v5.20;
use warnings;
use utf8;
use Const::Fast;
use List::SomeUtils qw(uniq);
use Path::Tiny;
use Unicode::UTF8 qw(encode_utf8);
use Debian::Debhelper::Buildsystem::Haskell::Recipes qw(
run
installable_hc
ghc_pkg_command
load_ghc_database
own_cabal_prerequisites
);
use Debian::Debhelper::Dh_Lib;
const my $EMPTY => q{};
const my $SPACE => q{ };
const my $COMMA => q{,};
const my $NEWLINE => qq{\n};
init(
options => {
'type=s' => \$dh{TYPE},
});
my $type = $dh{TYPE} // $EMPTY;
# this installs the extra-packages file
if ($type eq 'dev' && length $ENV{DEB_GHC_EXTRA_PACKAGES}) {
die encode_utf8('Need CABAL_PACKAGE for DEB_GHC_EXTRA_PACKAGES')
unless length $ENV{CABAL_PACKAGE};
die encode_utf8('Need CABAL_VERSION for DEB_GHC_EXTRA_PACKAGES')
unless length $ENV{CABAL_VERSION};
for my $installable (@{ $dh{DOPACKAGES} }) {
my $EP_DIR
= "debian/$installable/usr/lib/haskell-packages/extra-packages";
run(qw{mkdir --parents}, $EP_DIR);
path("$EP_DIR/$ENV{CABAL_PACKAGE}-$ENV{CABAL_VERSION}")
->spew_utf8($ENV{DEB_GHC_EXTRA_PACKAGES});
}
}
# and that consumes it
for my $installable (@{ $dh{DOPACKAGES} }) {
my $compiler = installable_hc($installable) || $ENV{DEB_DEFAULT_COMPILER};
my @extra_depends;
my @hashed_ids= own_cabal_prerequisites($compiler, $ENV{DEB_GHC_DATABASE});
for my $hashed_id (@hashed_ids) {
next
unless $hashed_id =~ m{^ ([^-]+) - ([0-9.]+) - [0-9a-f]{32} $}x;
my $name = $1;
my $version = $2;
my $extra_packages_file
= "/usr/lib/haskell-packages/extra-packages/$name-$version";
push(@extra_depends,
split(m{ \s* , \s* }x, path($extra_packages_file)->slurp_utf8))
if -e $extra_packages_file;
}
my $substvars_path = "debian/$installable.substvars";
# fix sort order
local $ENV{LC_ALL} = 'C.UTF-8';
replace_line($substvars_path, 'haskell:Extra-Depends',
join($COMMA . $SPACE, (sort +uniq @extra_depends)));
}
exit;
sub replace_line {
my ($path, $field, $value) = @_;
$value //= $EMPTY;
path($path)->touch;
my @lines = grep { !m{^ $field = }x } path($path)->lines_utf8;
push(@lines, "$field=$value" . $NEWLINE);
path($path)->spew_utf8(@lines);
return;
}
=head1 NAME
dh_haskell_extra_depends_ghc - store Haskell compiler info in substvars
=head1 SYNOPSIS
B<dh_haskell_extra_depends_ghc> [S<I<debhelper options>>]
=head1 DESCRIPTION
dh_haskell_extra_depends_ghc is a Debhelper program that Debian prerequisites for Haskell programs and libraries.
You can use it like this: C<${haskell:Depends}>
This script writes the debian/$package.substvars file, including in it the
haskell:Depends variable. So, to use this package, include in the Depends:
field in debian/control ${haskell:Depends}.
=head1 SEE ALSO
L<debhelper(7)>
=head1 AUTHOR
John Goerzen <jgoerzen@complete.org>
Based on ideas in dh_python by Josselin Mouette <joss@debian.org>
=cut
# Local Variables:
# indent-tabs-mode: nil
# cperl-indent-level: 4
# End:
# vim: syntax=perl sw=4 sts=4 sr et
|
