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|
#! /usr/bin/perl
$version="1.9.17"; # diverted from dpkg 1.9.17
%kmap= ('optional','suggests',
'recommended','recommends',
'class','priority',
'package_revision','revision');
@fieldpri= ('Package',
'Version',
'Priority',
'Section',
'Essential',
'Maintainer',
'Pre-Depends',
'Depends',
'Recommends',
'Suggests',
'Conflicts',
'Provides',
'Replaces',
'Architecture',
'Filename',
'Size',
'MD5sum',
'Description');
$written=0;
$i=100; grep($pri{$_}=$i--,@fieldpri);
if ($#ARGV > -1 && $ARGV[0] eq "-m") {
shift(@ARGV);
$opt_medium = shift(@ARGV); }
if ($#ARGV > -1 && $ARGV[0] eq "-a") {
shift(@ARGV);
$opt_arch = shift(@ARGV); }
$#ARGV == 1 || $#ARGV == 2
or die "Usage: dpkg-scanpackages [-m medium] [-a architecture ] binarypath overridefile [pathprefix] > Packages
\te.g. dpkg-scanpackages -m 'Debian GNU/Linux -a i386 binary-i386' \\
\t\tbinary-i386 /pub/debian/indices/override.hamm.gz \\
\t\tdists/stable/ > binary-i386/Packages\n";
($binarydir, $override, $pathprefix) = @ARGV;
-d $binarydir or die "Binary dir $binarydir not found\n";
-e $override or die "Override file $override not found\n";
sub vercmp {
($a,$b)=@_;
return $vercache{$a,$b} if defined($vercache{$a,$b});
system("dpkg --compare-versions $a le $b");
$vercache{$a,$a}=$?;
return $?;
}
# The extra slash causes symlinks to be followed.
open(F,"find $binarydir/ -follow -name '*.deb' -print |")
or die "Couldn't open pipe to find: $!\n";
# Note: contrib and other sections are written as contrib/foo in
# the overrides and control file
($sectdir) = "$pathprefix/$binarydir" =~ m:dists/[^\\]+/([^/]+/):;
$sectdir =~ s:(main|hamm)/::;
while (<F>) {
chomp($fn=$_);
substr($fn,0,length($binarydir)) eq $binarydir
or die "$fn not in binary dir $binarydir\n";
$t= `dpkg-deb -I $fn control`;
if ($t eq "") {
warn "Couldn't call dpkg-deb on $fn: $!, skipping package\n";
next;
}
if ($?) {
warn "\`dpkg-deb -I $fn control' exited with $?, skipping package\n";
next;
}
undef %tv;
$o= $t;
while ($t =~ s/^\n*(\S+):[ \t]*(.*(\n[ \t].*)*)\n//) {
$k= lc $1; $v= $2;
if (defined($kmap{$k})) { $k= $kmap{$k}; }
if (@kn= grep($k eq lc $_, @fieldpri)) {
@kn==1 || die $k;
$k= $kn[0];
}
$v =~ s/\s+$//;
$tv{$k}= $v;
}
$t =~ /^\n*$/
or die "Unprocessed text from $fn control file; info:\n$o / $t\n";
defined($tv{'Package'})
or die "No Package field in control file of $fn\n";
$p= $tv{'Package'}; delete $tv{'Package'};
$arch=$tv{'Architecture'};
if (defined($opt_arch)) {
if ($arch =~ $opt_arch || $arch =~ "all") {
# print(STDERR " ! Package $p ($fn) is for the correct architecture $opt_arch: $arch\n");
} else {
# print(STDERR " ! Package $p ($fn) is not for the correct architecture $opt_arch: $arch\n");
next;
}
}
if (defined($p1{$p})) {
if (&vercmp($tv{'Version'}, $pv{$p,'Version'})) {
print(STDERR " ! Package $p (filename $fn) is repeat but newer version;\n".
" used that one and ignored data from $pfilename{$p} !\n")
|| die $!;
delete $p1{$p};
for $k (keys %k1) {
delete $pv{$p,$k};
}
} else {
print(STDERR " ! Package $p (filename $fn) is repeat;\n".
" ignored that one and using data from $pfilename{$p} !\n")
|| die $!;
next;
}
}
print(STDERR " ! Package $p (filename $fn) has Filename field!\n") || die $!
if defined($tv{'Filename'});
$tv{'Filename'}= "$pathprefix$fn";
open(C,"md5sum $fn |") || die "$fn $!";
chop($_=<C>); close(C); $? and die "\`md5sum < $fn' exited with $?\n";
/^[0-9a-f]{32}/ or die "Strange text from \`md5sum < $fn': \`$_'\n";
s/\ .*$//;
$tv{'MD5sum'}= $_;
@stat= stat($fn) or die "Couldn't stat $fn: $!\n";
$stat[7] or die "$fn is empty\n";
$tv{'Size'}= $stat[7];
if (length($tv{'Revision'})) {
$tv{'Version'}.= '-'.$tv{'Revision'};
delete $tv{'Revision'};
}
for $k (keys %tv) {
$pv{$p,$k}= $tv{$k};
$k1{$k}= 1;
$p1{$p}= 1;
}
$_= substr($fn,length($binarydir));
s#/[^/]+$##; s#^/*##;
$psubdir{$p}= $_;
$pfilename{$p}= $fn;
}
close(F);
$? and warn "find exited with $?\n";
select(STDERR); $= = 1000; select(STDOUT);
format STDERR =
^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
$packages
.
sub writelist {
$title= shift(@_);
return unless @_;
print(STDERR " $title\n") || die $!;
$packages= join(' ',sort @_);
while (length($packages)) { write(STDERR) || die $!; }
print(STDERR "\n") || die $!;
}
@samemaint=();
if ($override =~ /\.gz$/) {
open(O, "/bin/zcat $override|")
or die "Couldn't open override file $override: $!\n";
} else {
open(O, $override)
or die "Couldn't open override file $override: $!\n";
}
while (<O>) {
s/\#.*//;
s/\s+$//;
($p,$priority,$section,$maintainer)= split(/\s+/,$_,4);
next unless defined($p1{$p});
if (length($maintainer)) {
if ($maintainer =~ m/\s*=\>\s*/) {
$oldmaint= $`; $newmaint= $'; $debmaint= $pv{$p,'Maintainer'};
if (!grep($debmaint eq $_, split(m:\s*//\s*:, $oldmaint))) {
push(@changedmaint,
" $p (package says $pv{$p,'Maintainer'}, not $oldmaint)\n");
} else {
$pv{$p,'Maintainer'}= $newmaint;
}
} elsif ($pv{$p,'Maintainer'} eq $maintainer) {
push(@samemaint," $p ($maintainer)\n");
} else {
print(STDERR " * Unconditional maintainer override for $p *\n") || die $!;
$pv{$p,'Maintainer'}= $maintainer;
}
}
$pv{$p,'Priority'}= $priority;
$pv{$p,'Section'}= $section;
($sectioncut = $section) =~ s:^[^/]*/::;
if (length($psubdir{$p}) && $section ne $psubdir{$p} &&
$sectioncut ne $psubdir{$p}) {
print(STDERR " !! Package $p has \`Section: $section',".
" but file is in \`$psubdir{$p}' !!\n") || die $!;
$ouches++;
}
$o1{$p}= 1;
}
close(O);
print(STDERR "\n") || die $! if $ouches;
$k1{'Maintainer'}= 1;
$k1{'Priority'}= 1;
$k1{'Section'}= 1;
@missingover=();
for $p (sort keys %p1) {
if (!defined($o1{$p})) {
push(@missingover,$p);
}
$r= "Package: $p\n";
for $k (sort { $pri{$b} <=> $pri{$a} } keys %k1) {
next unless length($pv{$p,$k});
$r.= "$k: $pv{$p,$k}\n";
}
$r.= "X-Medium: $opt_medium\n" if (defined $opt_medium);
$r.= "\n";
$written++;
$p1{$p}= 1;
print(STDOUT $r) or die "Failed when writing stdout: $!\n";
}
close(STDOUT) or die "Couldn't close stdout: $!\n";
@spuriousover= grep(!defined($p1{$_}),sort keys %o1);
&writelist("** Packages in archive but missing from override file: **",
@missingover);
if (@changedmaint) {
print(STDERR
" ++ Packages in override file with incorrect old maintainer value: ++\n",
@changedmaint,
"\n") || die $!;
}
if (@samemaint) {
print(STDERR
" -- Packages specifying same maintainer as override file: --\n",
@samemaint,
"\n") || die $!;
}
if (@spuriousover) {
print(STDERR
" -- Packages in override file but not in archive: --\n",
@spuriousover,
"\n") || die $!;
}
print(STDERR " Wrote $written entries to output Packages file.\n") || die $!;
|