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-rwxr-xr-xbin/macros/perl-dist552
1 files changed, 552 insertions, 0 deletions
diff --git a/bin/macros/perl-dist b/bin/macros/perl-dist
new file mode 100755
index 0000000..dc62ec8
--- /dev/null
+++ b/bin/macros/perl-dist
@@ -0,0 +1,552 @@
+#!/Users/juster/perl5/perlbrew/perls/perl-5.14.1/bin/perl
+
+use warnings 'FATAL' => 'all';
+use strict;
+
+package Convert;
+
+use Module::CoreList;
+use LWP::UserAgent qw();
+use YAML::XS qw();
+use version qw();
+
+sub dist2pkg
+{
+ my ($name, $ver) = @_;
+ return dist_pkgname($name), dist_pkgver($ver);
+}
+
+# Copied from CPANPLUS::Dist::Arch
+sub dist_pkgname
+{
+ my ($distname) = @_;
+
+ # Package names should be lowercase and consist of alphanumeric
+ # characters only (and hyphens!)...
+ $distname = lc $distname;
+ $distname =~ tr/_+/--/;
+ $distname =~ tr/-a-z0-9//cd; # Delete all other chars
+ $distname =~ tr/-/-/s;
+
+ # Delete leading or trailing hyphens...
+ $distname =~ s/\A-//;
+ $distname =~ s/-\z//;
+
+ die qq{Dist name '$distname' completely violates packaging standards}
+ if length $distname == 0;
+
+ # Don't prefix the package with perl- if it IS perl...
+ $distname = "perl-$distname" unless $distname eq 'perl';
+
+ return $distname;
+}
+
+sub dist_pkgver
+{
+ my ($version) = @_;
+
+ # Package versions should be numbers and decimal points only...
+ $version =~ tr/-/./;
+ $version =~ tr/_0-9.//cd;
+
+ # Remove developer versions because pacman has no special logic
+ # to handle comparing them to regular versions like perl does.
+ $version =~ s/_\d+\z//;
+
+ $version =~ tr/././s;
+ $version =~ s/^[.]|[.]$//g;
+
+ return $version;
+}
+
+#---HELPER FUNCTION---
+# Decide if the dist. is named after the module.
+sub _ismainmod
+{
+ my ($mod_name, $dist_name) = @_;
+
+ $mod_name =~ tr/:/-/s;
+ return (lc $mod_name) eq (lc $dist_name);
+}
+
+#---HELPER FUNCTION---
+# Merges the right-hand deps into the left-hand deps.
+sub _merge
+{
+ my ($left_deps, $right_deps) = @_;
+
+ MERGE_LOOP:
+ while ( my ($pkg, $ver) = each %$right_deps ) {
+ if ( $left_deps->{$pkg} ) {
+ my $leftver = version->parse($left_deps->{$pkg});
+ my $rightver = version->parse($ver);
+ next MERGE_LOOP if $leftver > $rightver;
+ }
+ $left_deps->{$pkg} = $ver;
+ }
+
+ return;
+}
+
+#---HELPER FUNCTION---
+# Merge duplicate deps into $left always storing the greatest version there.
+sub _mergedups
+{
+ my ($left, $right) = @_;
+
+ for my $name (keys %$left) {
+ my $rver = $right->{$name} or next;
+ my $lver = $left->{$name};
+ my $lvo = ($lver ? version->parse($lver) : 0);
+ my $rvo = ($rver ? version->parse($rver) : 0);
+ $left->{$name} = ($lvo > $rvo ? $lvo : $rvo);
+ }
+
+ return;
+}
+
+#---HELPER FUNCTION---
+sub _yankcheckers
+{
+ my ($deps_ref) = @_;
+ my %checkdeps;
+
+ for my $testdep (grep { /perl-test-/ } keys %$deps_ref) {
+ my $val = delete $deps_ref->{$testdep};
+ $checkdeps{$testdep} = $val if $val;
+ }
+
+ # Also extract Pod::Coverage module into checkdepends
+ for my $dep ( qw/ perl-pod-coverage / ) {
+ my $val = delete $deps_ref->{$dep};
+ $checkdeps{$dep} = $val if $val;
+ }
+
+ return \%checkdeps;
+}
+
+#---HELPER FUNCTION---
+# Converts a decimal perl version (like $]) into the dotted decimal
+# form that the official ArchLinux perl package uses.
+sub _perldepver
+{
+ my ($perlver) = @_;
+
+ # Fix perl-style vstrings which have a leading "v".
+ return $perlver if $perlver =~ s/\Av//;
+ return $perlver unless $perlver =~ /\A(\d+)[.](\d{3})(\d{1,3})\z/;
+
+ # Re-apply the missing trailing zeroes.
+ my $patch = $3;
+ $patch .= q{0} x (3 - length($patch));
+ return sprintf '%d.%d.%d', $1, $2, $patch;
+}
+
+#---PUBLIC FUNCNTION---
+# Translates CPAN module dependencies into ArchLinux package dependencies.
+sub _reqs2deps
+{
+ my ($prereqs) = @_;
+
+ my %pkgdeps;
+
+ CPAN_DEP_LOOP:
+ while (my ($name, $ver) = each %$prereqs) {
+ # Sometimes a perl version is given as a prerequisite
+ if ($name eq 'perl') {
+ $pkgdeps{'perl'} = _perldepver($ver);
+ next CPAN_DEP_LOOP;
+ }
+
+# Ideally we could take advantage of the perl package's provides list
+# and add dependencies for core modules.
+
+# This is more robust and handles the problem of packages built
+# with a different version of perl than the perl that is present
+# when the package is installed.
+
+# The problem is that the perl package provides list still needs work.
+# While I was trying to generate a provides list I noticed the
+# Module::CoreList module had some incorrect version numbers
+# as well. So until I get around to reporting these bugs I will
+# just go back to not depending on packages provided by perl.
+
+ # 0+$] is needed to force the perl version into number-dom
+ # otherwise trailing zeros cause problems
+ my $bundled_version = $Module::CoreList::version{ 0 + $] }->{$name};
+ if ($bundled_version) {
+ # Avoid parsing an empty string (causes an error) or 0.
+ next CPAN_DEP_LOOP unless $ver;
+
+ # Avoid parsing a bundled version of 0. Is this possible?
+ my $bundle_vobj = version->parse($bundled_version);
+ my $dep_vobj = version->parse($ver);
+ next CPAN_DEP_LOOP if $bundle_vobj >= $dep_vobj;
+ }
+
+ my $dist = _distofmod($name);
+ my $pkgname = dist_pkgname($dist);
+
+ # If the module is not named after the distribution, ignore its
+ # version which might not match the distribution.
+ undef $ver unless _ismainmod($name, $dist);
+
+ # If two module prereqs are in the same CPAN distribution then
+ # the version required for the main module will override.
+ # (because versions specified for other modules in the dist
+ # are 0)
+ $pkgdeps{$pkgname} ||= ($ver ? dist_pkgver($ver) : 0);
+ }
+
+ return \%pkgdeps;
+}
+
+sub prereqs
+{
+ my ($pkgname, $prereqs) = @_;
+
+ # maps perl names for different dependencies to ArchLinux's names
+ my %namemap = ('configure' => 'makedepends',
+ 'build' => 'makedepends',
+ 'testing' => 'checkdepends',
+ 'runtime' => 'depends');
+
+ my %pkgdeps;
+ while (my ($perl, $arch) = each %namemap) {
+ $pkgdeps{$arch} ||= {};
+ my $reqs = $prereqs->{$perl}{'requires'};
+ my $deps = _reqs2deps($reqs) if $reqs;
+ _merge($pkgdeps{$arch}, $deps) if $deps;
+ }
+
+ # ArchLinux now has a separate array for dependencies that we only
+ # need for checking (aka "testing"). Older perl METAs do not
+ # have this separated. Force any test modules to be checkdepends.
+ if (!$pkgdeps{'checkdepends'} && $pkgname !~ /\Aperl-test-/) {
+ my $checkdeps;
+ my $makedeps = $pkgdeps{'makedepends'};
+ _merge($checkdeps, _yankcheckers($makedeps));
+ $pkgdeps{'checkdepends'} = $checkdeps;
+ }
+
+ # We at least require perl, if nothing else.
+ unless (grep { scalar keys %$_ > 0 } values %pkgdeps) {
+ $pkgdeps{'depends'}{'perl'} = 0;
+ }
+
+ _mergedups(@pkgdeps{qw/makedepends checkdepends/});
+ _mergedups(@pkgdeps{qw/depends makedepends/});
+
+ # Convert all deps into arrays of strings.
+ for my $deptype (keys %pkgdeps) {
+ $pkgdeps{$deptype} = _stringify($pkgdeps{$deptype});
+ }
+
+ return \%pkgdeps;
+}
+
+#---HELPER FUNCTION---
+sub _stringify
+{
+ my ($deps) = @_;
+
+ my @depstrs;
+ for my $pkg (sort keys %$deps) {
+ my $ver = $deps->{$pkg};
+ my $str = ($ver eq '0' ? $pkg : "$pkg>=$ver");
+ push @depstrs, $str;
+ }
+
+ return \@depstrs;
+}
+
+my $UA;
+sub _distofmod
+{
+ my ($mod) = @_;
+
+ my $UA ||= LWP::UserAgent->new();
+ my $url = "http://cpanmetadb.appspot.com/v1.0/package/$mod";
+ my $resp = $UA->get($url);
+ die "failed to lookup dist for $mod: " . $resp->status_line
+ unless $resp->is_success;
+
+ $resp = YAML::XS::Load($resp->content);
+ my $file = $resp->{'distfile'};
+ $file =~ s{.*/}{};
+ $file =~ s{-[^-]+\z}{};
+
+ return $file;
+}
+
+#-----------------------------------------------------------------------------
+
+package main;
+
+use File::Basename qw(basename dirname);
+use File::Spec::Functions qw(catfile);
+use File::Find qw(find);
+
+use JSON::XS qw(decode_json); # parse META.{json,yml} files
+use YAML::XS qw();
+use Pod::Select qw(); # search POD for description
+
+use Digest::MD5 qw(); # for md5sums & sha512sums
+use Digest::SHA qw();
+
+# Override a package's name to conform to packaging guidelines.
+# Copied entries from CPANPLUS::Dist::Pacman and alot more
+# from searching for packages with perl in their name in
+# [extra] and [community]
+my $NAME_OVERRIDES =
+{ map { split /[\s=]+/ } split /\s*\n+\s*/, <<'END_OVERRIDES' };
+
+libwww-perl = perl-libwww
+aceperl = perl-ace
+mod_perl = mod_perl
+
+glade-perl-two = perl-glade-two
+Gnome2-GConf = gconf-perl
+Gtk2-GladeXML = glade-perl
+Glib = glib-perl
+Gnome2 = gnome-perl
+Gnome2-VFS = gnome-vfs-perl
+Gnome2-Canvas = gnomecanvas-perl
+Gnome2-GConf = gconf-perl
+Gtk2 = gtk2-perl
+Cairo = cairo-perl
+Pango = pango-perl
+
+SDL_Perl = sdl_perl
+Perl-Critic = perl-critic
+Perl-Tidy = perl-tidy
+App-Ack = ack
+TermReadKey = perl-term-readkey
+
+END_OVERRIDES
+
+sub main
+{
+ my $distpath = shift or die "Usage: $0 [path to cpan dist file]\n";
+ my $dir = dirname($distpath);
+ my $file = basename($distpath);
+ my $info = distinfo($file);
+
+ chdir $dir or die "chdir $dir: $!";
+ $dir = extractdist($file);
+
+ my $meta = loadmeta($dir);
+ my $desc = $meta->{'abstract'};
+ if (!$desc || $desc eq '~') {
+ $meta->{'abstract'} = distdesc($dir, $info->{'mod'});
+ }
+
+ my ($name, $ver) = Convert::dist2pkg(@{$info}{'name', 'ver'});
+ my $deps = Convert::prereqs($name, $meta->{'prereqs'});
+
+ my %pbvars =
+ ('pkgname' => $name,
+ 'pkgver' => $ver,
+ 'pkgdesc' => $meta->{'abstract'},
+
+ 'arch' => (xsdist($dir) ? ['i686', 'x86_64'] : 'any'),
+ 'md5sums' => md5sums($file),
+ 'sha512sums' => sha512sums($file),
+ 'distdir' => $dir,
+ %$deps,
+ );
+
+ # Since this is a perl distribution, use the perl-pkg template.
+ printf "| perl-pkg %s\n", (-f "$dir/Build.PL" ? "MB" : "MM");
+
+ printjam(\%pbvars);
+}
+
+sub envvar
+{
+ my ($name) = @_;
+ my $val = $ENV{uc $name};
+ ($name => [ split /\s+/, $name ]);
+}
+
+sub distinfo
+{
+ my ($distfile) = @_;
+
+ my @c = split /-/, $distfile;
+ my $ver = pop @c;
+ my $name = join q{-}, @c;
+ my $mod = $name;
+ $mod =~ s/-/::/g;
+ return { 'name' => $name, 'ver' => $ver, 'mod' => $mod };
+}
+
+sub extractdist
+{
+ my ($file) = @_;
+
+ system "bsdtar -xf $file";
+ die "$0: bsdtar failed to extract $file\n" unless $? == 0;
+
+ opendir my $srcdir, '.' or die "opendir: $!";
+ my @dirs = grep { -d $_ && !/\A[.]/ } readdir $srcdir;
+ closedir $srcdir;
+
+ die "$0: many dirs (@dirs) inside the tarball $file\n"
+ if @dirs > 1;
+ die "$0: no dirs found in tarball $file\n" if @dirs == 0;
+ return $dirs[0];
+}
+
+sub printjam
+{
+ my ($pbvars) = @_;
+ while (my ($name, $val) = each %$pbvars) {
+ if (! defined $val || $val eq q{}) {
+ warn "$0: warning: $name is undefined\n";
+ $val = q{};
+ }
+ print "+ $name $_\n" for (ref $val ? @$val : $val);
+ }
+}
+
+sub loadmeta
+{
+ my ($distdir) = @_;
+
+ for my $metaext (qw/json yml/) {
+ my $path = "$distdir/META.$metaext";
+ next unless -f $path;
+
+ open my $metafh, '<', $path or die "open: $!";
+ my $meta = do { local $/; <$metafh> };
+ close $metafh;
+
+ $meta = ($metaext eq 'json' ? decode_json($meta) :
+ $metaext eq 'yml' ? YAML::XS::Load($meta) :
+ die "internal error: unknown \$metaext: $metaext");
+
+ upgrademeta($meta);
+ return $meta;
+ }
+
+ return undef;
+}
+
+sub upgrademeta
+{
+ my ($meta) = @_;
+
+ return if exists $meta->{'prereqs'};
+
+ my $prereqs;
+ $prereqs->{'configure'}{'requires'} = delete $meta->{'configure_requires'};
+ $prereqs->{'build' }{'requires'} = delete $meta->{'build_requires'};
+ $prereqs->{'runtime' }{'requires'} = delete $meta->{'requires'};
+
+ $meta->{'prereqs'} = $prereqs;
+ return;
+}
+
+sub xsdist
+{
+ my ($dir) = @_;
+ my $isxs;
+ find({ 'wanted' => sub { $isxs = 1 if /[.]xs$/ }, 'no_chdir' => 1 }, $dir);
+ return $isxs;
+}
+
+#-----------------------------------------------------------------------------
+
+sub distdesc
+{
+ my ($dir, $modname) = @_;
+ return _poddesc($dir, $modname) || _readmedesc($dir, $modname);
+}
+
+sub _poddesc
+{
+ my ($dir, $modname) = @_;
+
+ my $podselect = Pod::Select->new;
+ $podselect->select('NAME');
+
+ my $modpath = $modname; $modpath =~ s{::}{/}g;
+ my $moddir = dirname($modpath);
+ my $modfile = basename($modpath);
+
+ # First check under lib/ for a "properly" pathed module, with
+ # nested directories. Then search desperately for a .pm file that
+ # matches the module's last name component.
+
+ my @possible = glob "$dir/{lib/,}{moddir/,}$modfile.{pod,pm}";
+
+ PODSEARCH:
+ for my $podpath ( @possible ) {
+ next PODSEARCH unless -f $podpath;
+
+ # Read the NAME section of the POD into a scalar.
+ my $namesect = q{};
+ open my $podfile, '<', $podpath or next PODSEARCH;
+ open my $podout, '>', \$namesect or die "open: $!";
+
+ $podselect->parse_from_filehandle($podfile, $podout);
+
+ close $podfile;
+ close $podout or die "close: $!";
+
+ next PODSEARCH unless $namesect;
+
+ # Remove formatting codes.
+ $namesect =~ s{ [IBCLEFSXZ] <(.*?)> }{$1}gxms;
+ $namesect =~ s{ [IBCLEFSXZ] <<(.*?)>> }{$1}gxms;
+
+ # The short desc is on a line beginning with 'Module::Name - '
+ if ( $namesect =~ / ^ \s* $modname [ -]+ ([^\n]+) /xms ) {
+ print STDERR qq{Found description "$1" in POD};
+ return $1;
+ }
+ }
+
+ return undef;
+}
+
+#---HELPER FUNCTION---
+sub _readmedesc
+{
+ my ($dir, $modname) = @_;
+
+ my $path = catfile($dir, 'README');
+ return undef unless -f $path;
+ open my $fh, '<', $path or die "open: $!";
+
+ while (<$fh>) {
+ chomp;
+ next unless /\ANAME/ ... /\A[A-Z]+/
+ and / \A \s* ${modname} [\s\-]+ (.+) \z /x;
+ print STDERR qq{Found description "$1" in README};
+ return $1;
+ }
+
+ close $fh;
+ return undef;
+}
+
+#-----------------------------------------------------------------------------
+
+sub md5sums
+{
+ return [ map {
+ open my $fh, '<', $_ or die "open: $!";
+ my $md5 = Digest::MD5->new()->addfile($fh)->hexdigest;
+ } @_ ]
+}
+
+sub sha512sums
+{
+ return [ map {
+ my $sha = Digest::SHA->new()->addfile($_)->hexdigest;
+ } @_ ]
+}
+
+main(@ARGV);
generated by cgit v1.2.3-24-g4f1b (git 2.32.0) at 2024-05-25 17:05:29 +0200