+our ($dscdata,$dscurl,$dsc);
+
+sub printcmd {
+ my $fh = shift @_;
+ my $intro = shift @_;
+ print $fh $intro or die $!;
+ local $_;
+ foreach my $a (@_) {
+ $_ = $a;
+ if (s{['\\]}{\\$&}g || m{\s} || m{[^-_./0-9a-z]}i) {
+ print $fh " '$_'" or die $!;
+ } else {
+ print $fh " $_" or die $!;
+ }
+ }
+ print $fh "\n" or die $!;
+}
+
+sub runcmd {
+ printcmd(\*DEBUG,"+",@_);
+ $!=0; $?=0;
+ die "@_ $! $?" if system @_;
+}
+
+sub cmdoutput_errok {
+ die Dumper(\@_)." ?" if grep { !defined } @_;
+ printcmd(\*DEBUG,"|",@_);
+ open P, "-|", @_ or die $!;
+ my $d;
+ $!=0; $?=0;
+ { local $/ = undef; $d = <P>; }
+ die if P->error;
+ close P or return undef;
+ chomp $d;
+ return $d;
+}
+
+sub cmdoutput {
+ my $d = cmdoutput_errok @_;
+ defined $d or die "@_ $? $!";
+ return $d;
+}
+
+sub dryrun_report {
+ printcmd(\*STDOUT,"#",@_);
+}
+
+sub runcmd_ordryrun {
+ if (!$dryrun) {
+ runcmd @_;
+ } else {
+ dryrun_report @_;
+ }
+}
+
+our %defcfg = ('dgit.default.distro' => 'debian',
+ 'dgit.default.username' => '',
+ 'dgit.default.ssh' => 'ssh',
+ 'dgit-distro.debian.git-host' => 'git.debian.org',
+ 'dgit-distro.debian.git-proto' => 'git+ssh://',
+ 'dgit-distro.debian.git-path' => '/git/dgit-repos',
+ 'dgit-distro.debian.git-check' => 'ssh-cmd',
+ 'dgit-distro.debian.git-create' => 'ssh-cmd',
+ 'dgit-distro.debian.mirror' => 'http://ftp.debian.org/debian/');
+
+sub cfg {
+ foreach my $c (@_) {
+ my $v = cmdoutput_errok(@git, qw(config --), $c);
+ if ($?==0) {
+ chomp $v;
+ return $v;
+ } elsif ($?!=256) {
+ die "$c $?";
+ }
+ my $dv = $defcfg{$c};
+ return $dv if defined $dv;
+ }
+ return undef;
+}
+
+sub access_distro () {
+ return cfg("dgit-suite.$suite.distro",
+ "dgit.default.distro");
+}
+
+sub access_cfg ($) {
+ my ($key) = @_;
+ my $distro = access_distro();
+ my $value = cfg("dgit-distro.$distro.$key",
+ "dgit.default.$key");
+ return $value;
+}
+
+sub access_gituserhost () {
+ my $user = access_cfg('git-user');
+ my $host = access_cfg('git-host');
+ return defined($user) && length($user) ? "$user\@$host" : $host;
+}
+
+sub access_giturl () {
+ my $url = access_cfg('git-url');
+ if (!defined $url) {
+ $url =
+ access_cfg('git-proto').
+ access_gituserhost().
+ access_cfg('git-path');
+ }
+ return "$url/$package.git";
+}
+
+sub parsecontrol {
+ my $c = Dpkg::Control::Hash->new();
+ $c->load(@_) or return undef;
+ return $c;
+}
+
+sub parsechangelog {
+ my $c = Dpkg::Control::Hash->new();
+ my $p = new IO::Handle;
+ open $p, '-|', qw(dpkg-parsechangelog) or die $!;
+ $c->parse($p);
+ $?=0; $!=0; close $p or die "$! $?";
+ return $c;
+}
+
+our $rmad;
+
+sub archive_query () {
+ my $query = access_cfg('archive-query');
+ $query ||= "madison:".access_distro();
+ $query =~ s/^(\w+):// or die "$query ?";
+ my $proto = $1;
+ my $url = $'; #';
+ die unless $proto eq 'madison';
+ $rmad ||= cmdoutput qw(rmadison -asource),"-s$suite","-u$url",$package;
+ $rmad =~ m/^ \s*( [^ \t|]+ )\s* \|
+ \s*( [^ \t|]+ )\s* \|
+ \s*( [^ \t|]+ )\s* \|
+ \s*( [^ \t|]+ )\s* /x or die "$rmad $?";
+ $1 eq $package or die "$rmad $package ?";
+ my $vsn = $2;
+ if ($suite ne $3) {
+ # madison canonicalises for us
+ print "canonical suite name for $suite is $3\n";
+ $suite = $3;
+ }
+ $4 eq 'source' or die "$rmad ?";
+ my $prefix = substr($package, 0, $package =~ m/^l/ ? 4 : 1);
+ my $subpath = "/pool/main/$prefix/$package/${package}_$vsn.dsc";
+ return ($vsn,$subpath);
+}
+
+sub canonicalise_suite () {
+ archive_query();
+}