apkbuild-cpan.in 10.8 KB
Newer Older
1 2 3 4 5
#!/usr/bin/perl
# apk add perl-libwww perl-json

use strict;
use warnings;
6 7 8 9
use 5.016;
use feature "switch";
no if $] >= 5.018, warnings => "experimental::smartmatch";

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
use LWP::UserAgent;
use LWP::ConnCache;
use CPAN::Meta;
use Module::CoreList;
use JSON;

my $license_mappings = {
	"perl_5" => "GPL PerlArtistic",
	"artistic_2" => "Artistic-2",
};

my $package_mappings = {
	"LWP" => "perl-libwww",
	"TermReadKey" => "perl-term-readkey",
};
our $packager = "";
my $template = <<'EOF';
27 28
# Automatically generated by apkbuild-cpan, template 2
[% authors %]
29 30 31 32 33 34 35 36 37 38
pkgname=[% pkgname %]
_pkgreal=[% pkgreal %]
pkgver=[% pkgver %]
pkgrel=0
pkgdesc="Perl module for [% pkgreal %]"
url="http://search.cpan.org/dist/[% pkgreal %]/"
arch="noarch"
license="GPL PerlArtistic"
cpandepends=""
cpanmakedepends=""
39
cpancheckdepends=""
40 41
depends="$cpandepends"
makedepends="perl-dev $cpanmakedepends"
42
checkdepends="$cpancheckdepends"
43 44
subpackages="$pkgname-doc"
source="[% source %]"
45
builddir="$srcdir/$_pkgreal-$pkgver"
46 47

prepare() {
tmpfile's avatar
tmpfile committed
48
	default_prepare
49

50
	cd "$builddir"
51
	if [ -e Build.PL ]; then
tmpfile's avatar
tmpfile committed
52
		perl Build.PL installdirs=vendor
53
	else
tmpfile's avatar
tmpfile committed
54
		PERL_MM_USE_DEFAULT=1 perl Makefile.PL INSTALLDIRS=vendor
55 56 57 58 59 60 61 62 63 64 65
	fi
}

build() {
	:
}

package() {
	:
}

66 67 68 69
check() {
	:
}

70 71 72 73 74 75 76
EOF

our $ua = LWP::UserAgent->new();
our $json = JSON->new;
$ua->env_proxy;
$ua->conn_cache(LWP::ConnCache->new());

77
sub read_file {
78 79 80 81 82 83 84 85
	my ($filename) = @_;
	local $/;
	open my $fh, "<", $filename or die "could not open $filename: $!";
	return <$fh>;
}

sub read_assignments_from_file {
	my ($filename) = @_;
86
	return () if ( ! -e $filename );
87 88 89 90
	my $text = read_file($filename);
	my %sline = $text =~ /^(\w+)\s*=\s*([^\"\n]*)$/mg;
	my %mline = $text =~ /^(\w+)\s*=\s*\"([^\"]*)\"$/mg;
	my %hash = ( %sline, %mline );
91 92 93 94

	my $authors = join("\n", $text =~ /^# Contributor: .*$/mg, $text =~ /^# Maintainer: .*$/mg);
	$hash{'authors'} = $authors if length($authors) > 1;

95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110
	return \%hash;
}

sub map_cpan_to_apk {
	my ($cpan_distrib) = @_;
	return $package_mappings->{$cpan_distrib} if exists $package_mappings->{$cpan_distrib};
	# most packages are named according to the
	# distribution name
	return 'perl-' . lc $cpan_distrib;
}

sub read_apkbuild {
	return read_assignments_from_file("APKBUILD");
}

sub write_apkbuild {
111
	my ($distdata, $authors) = @_;
112 113 114

	my $cpanid = $distdata->{releases}[0]->{cpanid};
	$cpanid = substr($cpanid, 0, 1) . "/" . substr($cpanid, 0, 2) . "/$cpanid";
115

116
	my %repl = (
117
		authors  => ($authors or "# Contributor: $packager\n# Maintainer: $packager"),
118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153
		pkgname  => map_cpan_to_apk($distdata->{name}),
		pkgreal  => $distdata->{name},
		pkgver   => $distdata->{releases}[0]->{version},
		source   => "http://search.cpan.org/CPAN/authors/id/$cpanid/\$_pkgreal-\$pkgver.tar.gz",
	);
	$template =~ s/\[% (.*?) %\]/$repl{$1}/g;

	open my $fh, '>', "APKBUILD" or die;
	print $fh $template;
	close $fh;

	say "Wrote $repl{pkgname}/APKBUILD";
}

sub parse_deps {
	my ($reqs) = @_;
	my $distfiles = {};
	my $response;
	my $deps = "";

	for my $module ($reqs->required_modules) {
		if (my $perlver = Module::CoreList->first_release($module)) {
			say "$module is part of core perl since $perlver.";
			next;
		}
		next if $module eq 'perl';

		# map module name to package name
		$response = $ua->get("http://search.cpan.org/api/module/$module");
		$response->is_success or die $response->status_line;
		my $moddata = $json->decode($response->decoded_content);
		$moddata->{error} and die "Error trying to locate $module: $moddata->{error}\n";
		$distfiles->{$moddata->{distvname}} = $moddata;
	}

	# map package names to alpine packages
154
	foreach ( keys %{ $distfiles } ) {
155 156 157 158 159 160 161 162
		$response = $ua->get("http://search.cpan.org/api/dist/$_");
		$response->is_success or die $response->status_line;
		my $distdata = $json->decode($response->decoded_content);
		$distdata->{error} and die "Error trying to locate $_: $distdata->{error}\n";

		my $pkgname = map_cpan_to_apk($distdata->{name});
		$deps .= "$pkgname ";
	}
163 164
	$deps =~ s/\h+/ /g;
	$deps =~ s/ $//;
165 166 167 168 169 170 171 172 173 174 175 176
	return $deps;

}

sub prepare_tree {
	system("abuild checksum unpack prepare") == 0 or
		die "abuild checksum failed";
}

sub update_functions {
	my $apkbuild = read_apkbuild;
	my $metaprefix = "src/" . $apkbuild->{'_pkgreal'} . "-" . $apkbuild->{'pkgver'} . "/";
177
	my $prepare_func;
178
	my $build_func;
179
	my $check_func;
180 181 182 183 184 185
	my $package_func;

	my $text = read_file "APKBUILD";
	if (-e "$metaprefix/Build.PL" ) {
		$prepare_func = <<'EOF';
prepare() {
tmpfile's avatar
tmpfile committed
186
	default_prepare
187

188
	cd "$builddir"
189
	export CFLAGS=$(perl -MConfig -E 'say $Config{ccflags}')
tmpfile's avatar
tmpfile committed
190
	perl Build.PL installdirs=vendor
191 192 193 194
}
EOF
		$build_func = <<'EOF';
build() {
195
	cd "$builddir"
196
	export CFLAGS=$(perl -MConfig -E 'say $Config{ccflags}')
197 198 199 200 201
	./Build && ./Build test
}
EOF
		$package_func = <<'EOF';
package() {
202
	cd "$builddir"
tmpfile's avatar
tmpfile committed
203
	./Build install destdir="$pkgdir"
204 205 206 207 208 209
	find "$pkgdir" \( -name perllocal.pod -o -name .packlist \) -delete
}
EOF
	} else {
		$prepare_func = <<'EOF';
prepare() {
tmpfile's avatar
tmpfile committed
210
	default_prepare
211

212
	cd "$builddir"
213
	export CFLAGS=$(perl -MConfig -E 'say $Config{ccflags}')
214 215 216 217 218
	PERL_MM_USE_DEFAULT=1 perl Makefile.PL INSTALLDIRS=vendor
}
EOF
		$build_func = <<'EOF';
build() {
219
	cd "$builddir"
220
	export CFLAGS=$(perl -MConfig -E 'say $Config{ccflags}')
221
	make
222 223 224 225
}
EOF
		$package_func = <<'EOF';
package() {
226
	cd "$builddir"
tmpfile's avatar
tmpfile committed
227
	make DESTDIR="$pkgdir" install
228 229
	find "$pkgdir" \( -name perllocal.pod -o -name .packlist \) -delete
}
230 231 232 233 234 235 236
EOF
		$check_func = <<'EOF';
check() {
	cd "$builddir"
	export CFLAGS=$(perl -MConfig -E 'say $Config{ccflags}')
	make test
}
237 238 239 240 241 242 243 244 245
EOF
	}

	$text =~ s/^prepare\(\) \{.*?^\}\n/$prepare_func/smg or
		die "Can't replace prepare function APKBUILD";
	$text =~ s/^build\(\) \{.*?^\}\n/$build_func/smg or
		die "Can't replace build function APKBUILD";
	$text =~ s/^package\(\) \{.*?^\}\n/$package_func/smg or
		die "Can't replace package function APKBUILD";
246 247
	$text =~ s/^check\(\) \{.*?^\}\n/$check_func/smg or
		die "Can't replace check function APKBUILD";
248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275

	open my $fh, '>', "APKBUILD" or die;
	print $fh $text;
	close $fh;
}

sub do_depends {
	my $apkbuild = read_apkbuild;
	my $metaprefix = "src/" . $apkbuild->{'_pkgreal'} . "-" . $apkbuild->{'pkgver'} . "/";
	my $meta;

	foreach my $metafile ("MYMETA.json", "META.json", "MYMETA.yml", "META.yml") {
		if (-e "$metaprefix$metafile") {
			say "Using meta information from $metafile";
			$meta = CPAN::Meta->load_file("$metaprefix$metafile");
			last;
		}
	}
	die "No dependency meta file found" unless $meta;

	my $abstract = $meta->abstract;
	say "Abstract: $abstract";

	my $license = join " ", map {$license_mappings->{$_} or $_} $meta->license;
	say "License: $license";

	my $deps = parse_deps $meta->effective_prereqs->requirements_for('runtime', 'requires');
	say "CPAN deps: $deps";
276
	say "Recommend: " . parse_deps $meta->effective_prereqs->requirements_for('runtime', 'recommends');
277

278
	my $makedeps = parse_deps($meta->effective_prereqs->requirements_for('build', 'requires'), $meta->effective_prereqs->requirements_for('build', 'recommends'));
279
	say "CPAN build deps: $makedeps";
280 281 282 283 284
	say "CPAN requires: " . parse_deps($meta->effective_prereqs->requirements_for('build', 'requires'));
	say "CPAN recommds: " . parse_deps($meta->effective_prereqs->requirements_for('build', 'recommends'));

	my $checkdeps = parse_deps($meta->effective_prereqs->requirements_for('test', 'requires'), $meta->effective_prereqs->requirements_for('test', 'recommends'));
	say "CPAN check deps: $makedeps";
285 286 287 288 289 290

	my $text = read_file "APKBUILD";
	if ($abstract) {
		$text =~ s/^pkgdesc=\"([^\"]*)\"$/pkgdesc=\"$abstract\"/mg or
			die "Can't find cpandepends line in APKBUILD";
	}
291 292 293 294
	if (length(`find $metaprefix -name '*.xs'`)) {
		$text =~ s/^arch=\"([^\"]*)\"$/arch="all"/mg or
			die "Can't find arch line in APKBUILD";
	}
295 296 297 298
	if ($license ne 'unknown') {
		$text =~ s/^license=\"([^\"]*)\"$/license=\"$license\"/mg or
			die "Can't find license line in APKBUILD";
	}
299 300 301 302
	$text =~ s/^cpandepends=\"([^\"]*)\"$/cpandepends=\"$deps\"/mg or
		die "Can't find cpandepends line in APKBUILD";
	$text =~ s/^cpanmakedepends=\"([^\"]*)\"$/cpanmakedepends=\"$makedeps\"/mg or
		die "Can't find cpanmakedepends line in APKBUILD";
303 304
	$text =~ s/^cpancheckdepends=\"([^\"]*)\"$/cpancheckdepends=\"$checkdeps\"/mg or
		die "Can't find cpancheckdepends line in APKBUILD";
305 306 307 308 309 310

	open my $fh, '>', "APKBUILD" or die;
	print $fh $text;
	close $fh;
}

311 312
sub get_data {
	my $apkbuild = read_apkbuild;
313
	$apkbuild->{_pkgreal} or die "Not apkbuild-cpan generated APKBUILD";
314 315 316 317 318 319 320 321
	my $response = $ua->get("http://search.cpan.org/api/dist/$apkbuild->{_pkgreal}");
	$response->is_success or die $response->status_line;
	my $distdata = $json->decode($response->decoded_content);
	$distdata->{error} and die "Error trying to locate $apkbuild->{_pkgreal}: $distdata->{error}\n";

	return ($apkbuild, $distdata);
}

322 323 324
my $abuild_conf = read_assignments_from_file("/etc/abuild.conf");
$packager = $abuild_conf->{PACKAGER} if $abuild_conf->{PACKAGER};

325 326 327
my $user_abuild_conf = read_assignments_from_file($ENV{"HOME"} . "/.abuild/abuild.conf");
$packager = $user_abuild_conf->{PACKAGER} if $user_abuild_conf->{PACKAGER};

328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352
given ( $ARGV[0] ) {
	when ("create") {
		my $module = $ARGV[1];
		my $response;
		$module or die "Module name is a mandatory argument";

		$response = $ua->get("http://search.cpan.org/api/module/$module");
		$response->is_success or die $response->status_line;
		my $moddata = $json->decode($response->decoded_content);
		$moddata->{error} and die "Error trying to locate $module: $moddata->{error}\n";

		$response = $ua->get("http://search.cpan.org/api/dist/$moddata->{distvname}");
		$response->is_success or die $response->status_line;
		my $distdata = $json->decode($response->decoded_content);
		$distdata->{error} and die "Error trying to locate $module: $distdata->{error}\n";

		my $apkname = map_cpan_to_apk $distdata->{name};
		mkdir $apkname;
		chdir $apkname;
		write_apkbuild($distdata);
		prepare_tree;
		update_functions;
		do_depends;
	}
	when ("recreate") {
353
		my ($apkbuild, $distdata) = get_data;
354
		write_apkbuild($distdata, $apkbuild->{authors});
355 356 357 358 359
		prepare_tree;
		update_functions;
		do_depends;
	}
	when ("upgrade") {
360
		my ($apkbuild, $distdata) = get_data;
361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379

		my $pkgver = $distdata->{releases}[0]->{version};
		if ($pkgver != $apkbuild->{pkgver}) {
			say "Upgrading CPAN module from $apkbuild->{pkgver} to $pkgver";

			my $text = read_file "APKBUILD";
			$text =~ s/^pkgver=(.*)$/pkgver=$pkgver/mg or
				die "Can't find pkgver line in APKBUILD";
			$text =~ s/^pkgrel=(.*)$/pkgrel=0/mg;
			open my $fh, '>', "APKBUILD" or die;
			say $fh $text;
			close $fh;

			prepare_tree;
			do_depends;
		} else {
			say "Up-to-data with CPAN";
		}
	}
380 381 382
	when ('check') {
		my ($apkbuild, $distdata) = get_data;
		my $pkgver = $distdata->{releases}[0]->{version};
383 384 385 386
		say "$apkbuild->{pkgname}: Latest version: $pkgver Packaged version: $apkbuild->{pkgver}";
		if ($pkgver ne $apkbuild->{pkgver}) {
			exit(1);
		}
387
	}
388 389 390 391 392
	when ("update") {
		prepare_tree;
		do_depends;
	}
	default {
393
		say "Usage: apkbuild-cpan [create <Module::Name> | check | recreate | update | upgrade]";
394 395 396
		exit;
	}
}