package My::Builder;
use strict;
use warnings;
use base 'Module::Build';
use lib "inc";
use File::Spec::Functions qw(catfile);
use ExtUtils::Command;
use File::Fetch;
use File::Temp qw(tempdir tempfile);
use File::Path qw();
use File::ShareDir;
use Digest::SHA qw(sha1_hex);
use Archive::Extract;
use Config;
use ExtUtils::Liblist;
sub ACTION_install {
my $self = shift;
my $sharedir = eval {File::ShareDir::dist_dir('Alien-Tidyp')} || '';
if ( -d $sharedir ) {
print STDERR "Removing the old '$sharedir'\n";
File::Path::rmtree($sharedir);
File::Path::mkpath($sharedir);
}
return $self->SUPER::ACTION_install(@_);
}
sub ACTION_code {
my $self = shift;
unless (-e 'build_done') {
$self->add_to_cleanup('build_done');
my $inst = $self->notes('installed_tidyp');
if (defined $inst) {
$self->config_data('config', { LIBS => $inst->{lflags},
INC => $inst->{cflags},
});
}
else {
# important directories
my $download = 'download';
my $patches = 'patches';
my $build_src = 'build_src';
# we are deriving the subdir name from VERSION as we want to prevent
# troubles when user reinstalls the newer version of Alien::Tidyp
my $build_out = catfile('sharedir', $self->{properties}->{dist_version});
$self->add_to_cleanup($build_out);
$self->add_to_cleanup($build_src);
# get sources
my $tarball = $self->args('srctarball');
my $dir = $self->notes('tidyp_dir');
my $sha1 = $self->notes('tidyp_sha1');
my @url = @{$self->notes('tidyp_url')};
$self->notes('tidyp_src', "$build_src/$dir");
my $archive;
if ($tarball && -f $tarball) {
$archive = $tarball;
$self->check_sha1sum($archive, $sha1) || die "###ERROR### Checksum failed '$archive'";
}
elsif ($tarball && $tarball =~ /^[a-z]+:\/\//) {
warn "Downloading from explicit URL: '$tarball'\n" if $tarball;
$archive = $self->fetch_file([$tarball], $sha1, $download) || die "###ERROR### Download failed\n";
}
elsif ($tarball) {
die "###ERROR### Wrong value of --srctarball option (non existing file or invalid URL)\n";
}
else {
$archive = $self->fetch_file(\@url, $sha1, $download) || die "###ERROR### Download failed\n";
}
print STDERR "Checking checksum '$archive'...\n";
#extract source codes
my $extract_src = 'y';
$extract_src = $self->prompt("Overwrite existing sources? (y/n)", "n") if (-d $self->notes('tidyp_src'));
if (lc($extract_src) eq 'y') {
my $ae = Archive::Extract->new( archive => $archive );
$self->notes('tidyp_src');
$ae->extract(to => $build_src) || die "###ERROR### Cannot extract tarball ", $ae->error;
die "###ERROR### Cannot find expected dir='",$self->notes('tidyp_src'),"'" unless -d $self->notes('tidyp_src');
}
# go for build
$self->build_binaries($build_out, $self->notes('tidyp_src'));
# store info about build into future Alien::Tidyp::ConfigData
$self->config_data('share_subdir', $self->{properties}->{dist_version});
$self->config_data('config', { PREFIX => '@PrEfIx@',
LIBS => '-L' . $self->quote_literal('@PrEfIx@/lib') . ' -ltidyp',
INC => '-I' . $self->quote_literal('@PrEfIx@/include/tidyp'),
});
}
# mark sucessfully finished build
local @ARGV = ('build_done');
ExtUtils::Command::touch();
}
$self->SUPER::ACTION_code;
}
sub fetch_file {
my ($self, $url_list, $sha1sum, $download) = @_;
die "###ERROR### _fetch_file undefined url\n" unless $url_list;
die "###ERROR### _fetch_file undefined sha1sum\n" unless $sha1sum;
for my $url (@$url_list) {
my $ff = File::Fetch->new(uri => $url);
my $fn = catfile($download, $ff->file);
if (-e $fn) {
print STDERR "Checking checksum for already existing '$fn'...\n";
return $fn if $self->check_sha1sum($fn, $sha1sum);
unlink $fn; #exists but wrong checksum
}
print STDERR "Fetching '$url' ...\n";
my $fullpath = $ff->fetch(to => $download);
if ($fullpath && -e $fullpath && $self->check_sha1sum($fullpath, $sha1sum)) {
print STDERR "Download OK (filesize=".(-s $fullpath).")\n";
return $fullpath;
}
warn "###WARNING### Unable to fetch '$url'\n";
}
return;
}
sub check_sha1sum {
my ($self, $file, $sha1sum) = @_;
my $sha1 = Digest::SHA->new;
my $fh;
open($fh, $file) or die "###ERROR## Cannot check checksum for '$file'\n";
binmode($fh);
$sha1->addfile($fh);
close($fh);
my $rv = ($sha1->hexdigest eq $sha1sum) ? 1 : 0;
warn "###WARN## sha1 mismatch: got '", $sha1->hexdigest , "'\n",
"###WARN## sha1 mismatch: expected '", $sha1sum, "'\n",
"###WARN## sha1 mismatch: filesize '", (-s $file), "'\n", unless $rv;
return $rv;
}
sub build_binaries {
die "###ERROR### My::Builder cannot build libtidyp from sources, use rather My::Builder::<platform>";
}
sub quote_literal {
# this needs to be overriden in My::Builder::<platform>
my ($self, $path) = @_;
return $path;
}
sub check_installed_tidyp {
my ($self) = @_;
require ExtUtils::CBuilder;
my $cb = ExtUtils::CBuilder->new( quiet => 1 );
my $dir = tempdir( CLEANUP => 1 );
my ($fs, $src) = tempfile( DIR => $dir, SUFFIX => '.c' );
syswrite($fs, <<MARKER); # write test source code
#include <tidyp.h>
int main() { tidyVersion(); return 0; }
MARKER
close($fs);
my $tdir = $ENV{TIDYP_DIR} || '';
my @candidates;
push(@candidates, { L => "$tdir/lib", I => "$tdir/include/tidyp" }) if -d $tdir;
push(@candidates, { L => '/usr/local/lib', I => '/usr/local/include/tidyp' });
push(@candidates, { L => '/usr/lib', I => '/usr/include/tidyp' });
push(@candidates, { L => '', I => "$Config{usrinc}/tidyp" });
print STDERR "Gonna detect tidyp already installed on your system:\n";
foreach my $i (@candidates) {
my $lflags = $i->{L} ? '-L'.$self->quote_literal($i->{L}).' -ltidyp' : '-ltidyp';
my $cflags = $i->{I} ? '-I'.$self->quote_literal($i->{I}) : '';
print STDERR "- testing: $cflags $lflags ...\n";
$lflags = ExtUtils::Liblist->ext($lflags) if($Config{make} =~ /nmake/ && $Config{cc} =~ /cl/); # MSVC compiler hack
my ($obj, $exe);
open(my $olderr, '>&', STDERR);
open(STDERR, '>', File::Spec->devnull());
$obj = eval { $cb->compile( source => $src, extra_compiler_flags => $cflags ) };
$exe = eval { $cb->link_executable( objects => $obj, extra_linker_flags => $lflags ) } if $obj;
open(STDERR, '>&', $olderr);
next unless $exe;
print STDERR "- TIDYP FOUND!\n";
$self->notes('installed_tidyp', { lflags => $lflags, cflags => $cflags } );
return 1;
}
print STDERR "- tidyp not found (we have to build it from sources)!\n";
return 0;
}
1;