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|
#!/usr/bin/perl -w
use strict;
use IO::Handle;
use Data::Dumper;
use LWP::UserAgent;
use Dpkg::Control::Hash;
use File::Path;
use POSIX;
open DEBUG, ">&STDERR" or die $!;
our $pdo = 'http://packages.debian.org/';
#our $mirror = 'http://mirror.relativity.greenend.org.uk/mirror/debian-ftp/';
our $suite = 'sid';
our $package = '2vcard';
our $aliothname = 'iwj@git.debian.org';
our $aliothpath = '/git/dgit-test';
our $alioth_git = 'git+ssh://$aliothname/$aliothpath';
our $alioth_sshtestbodge = [$aliothname,$aliothpath];
sub mainbranch () { return "$suite"; }
sub uploadingbranch () { return "uploading/$suite"; }
our $ua;
sub url_get {
if (!$ua) {
$ua = LWP::UserAgent->new();
$ua->env_proxy;
}
print DEBUG "fetching @_...\n";
my $r = $ua->get(@_) or die $!;
die "$_[0]: ".$r->status_line."; failed.\n" unless $r->is_success;
return $r->decoded_content();
}
our ($dscdata,$dscurl);
sub get_archive_dsc () {
my $pdourl = "$pdo/source/$suite/$package";
my $pdodata = url_get($pdourl);
# FFS. The Debian archive has no sane way to find what
# version is currently the tip in any branch (aka, what
# is the current version in any suite).
$pdodata =~ m{
Download\ \Q$package\E .*
\<a\ href=\"([^"&]+([^"/]+\.dsc))\"\>\2\</a\>
}msx
or die "screenscraping of $pdourl failed :-(\n";
$dscurl = $1;
print DEBUG Dumper($pdodata, $&, $dscurl);
$dscdata = url_get($dscurl);
my $dscfh = new IO::File \$dscdata, '<' or die $!;
print DEBUG Dumper($dscdata, $dscfh);
my $dscp = Dpkg::Control::Hash->new(allow_pgp=>1);
$dscp->parse($dscfh, 'dsc') or die "parsing of $dscurl failed\n";
# my $dscf = $dscp->{'fields'};
my $dscf=$dscp;
print DEBUG Dumper($dscp,$dscf);
my $fmt = $dscf->{Format};
die "unsupported format $fmt, sorry\n" unless $fmt eq '1.0';
return $dscf;
}
sub check_for_git () {
# returns 0 or 1
open P, "ssh $alioth_sshtestbodge->[0] '".
"set -e; cd /git/dgit-test;".
"if test -d $package.git; then echo 1; else echo 0; fi".
"' |"
or die $!;
$!=0; $?=0;
my $r = <P>; close P;
die "$r $! $?" unless $r =~ m/^[01]$/;
return !!$r;
}
sub runcmd {
$!=0; $?=0;
die "$! $?" if system @_;
}
our ($dsc,$dsc_hash,$lastupl_hash);
sub generate_commit_from_dsc () {
my $ud = '.git/dgit/unpack';
remove_tree($ud);
mkpath '.git/dgit';
mkdir $ud or die $!;
chdir $ud or die $!;
my @files;
foreach (split /\n/, ($dsch->{Checksums-Sha256} || $dsch->{Files})) {
next unless m/\S/;
m/^\w+ \d+ (\S+)$/ or die "$_ ?";
my $f = $1;
die if $f =~ m#/|^\.|\.dsc$|\.tmp$#;
push @files, $f;
link "../../../$f", $f
or $!==&ENOENT
or die "$f $!";
}
runcmd qw(dget --), $dscurl;
foreach my $f (grep { m/\.tar\.gz$/ } @files) {
link $f, "../../../$f"
or $!==&EEXIST
or die "$f $!";
}
my (@dirs) = <*/.>;
die unless @dirs==1;
$dirs[0] =~ m#^([^/]+)/\.$# or die;
my $dir = $1;
chdir $dir or die "$dir $!";
die if stat '.git';
die $! unless $!==&ENOENT;
runcmd qw(git init);
remove_tree(.git/objects);
symlink '../../objects','.git/objects' or die $!;
runcmd qw(git add -Af);
my $tree = cmdoutput qw(git write-tree);
chomp $tree or die;
runcmd qw(sh -ec), 'dpkg-parsechangelog >../changelog.tmp';
my $clogp = Dpkg::Control::Hash->new();
$clogp->parse('../changelog.tmp','changelog');
my $date = cmdoutput qw(date), '+%s %z', qw(-d),$clogp->{Date};
my $author = $clogp->{Maintainer};
$author =~ s#,.*##ms;
my $authline = "$author $date";
$authline =~ m/^[^<>]+ \<\S+\> \d+ [-+]\d+$/ or die $authline;
open C, ">../commit.tmp" or die $!;
print C "tree $tree\n" or die $!;
print C "parent $lastupl_hash\n" or die $! if defined $lastupl_hash;
print C <<END or die $!;
author $authline
committer $authline
$clogp->{Changes}
# generated by dgit
END
close C or die $!;
my $commithash = runcmd qw(git hash-object -w -t commit ../commit.tmp);
chdir '../../..' or die $!;
remove_tree($ud);
cmdoutput qw(git log -n1), $commithash;
return $commithash;
}
sub fetch_from_archive () {
my $hash;
if (defined $dsc_hash) {
$hash = $dsc_hash;
} else {
$hash = generate_commit_from_dsc();
}
cmdoutput qw(git update-ref FETCH_HEAD) $hash;
}
#sub combine () {
# if (
# runcmd qw(git write-tree
runcmd qw(mkdir -p '');
# chdir '.git/dgit/unpack' or die $!;
# with_tmpdir($td,{
# });
# }
# open P, "-|", qw(git rev-parse --), $dsc_hash;
#}
sub clone () {
$dsc = get_archive_dsc();
$dsc_hash = $dsc->{'Vcs-git-master'};
if (defined $dsc_hash) {
$dsc_hash =~ m/\w+/ or die "$dsc_hash $?";
$dsc_hash = $&;
}
my $dstdir = "$package";
if (check_for_git()) {
runcmd qw(git clone --origin dgit -b), $suite, '--',
$alioth_git, $dstdir;
chdir "$dstdir" or die "$dstdir $!";
update_from_archive();
} else {
mkdir $dstdir or die "$dstdir $!";
chdir "$dstdir" or die "$dstdir $!";
runcmd qw(git init);
open H, "> .git/refs/HEAD" or die $!;
print H "ref: refs/heads/$suite\n" or die $!;
close H or die $!;
runcmd qw(git remote add dgit), $alioth_git;
runcmd "git config branch.$suite.remote dgit";
runcmd "git config branch.$suite.merge refs/heads/$suite";
update_from_archive();
}
}
sub fetch () {
my ($archive_or_mirror, $suite, $package) = @_;
my $dsc = get_archive_dsc();
}
print Dumper(get_archive_dsc());
|
