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|
#!/usr/bin/perl
our ($VERSION) = q(Id: genhdlist2 20460 2006-11-23 13:19:11Z pixel ) =~ /(\d+\.\d+)/;
use Cwd;
use URPM;
use List::Util 'any';
use MDV::Packdrakeng;
use Getopt::Long;
use strict;
main();
sub usage () {
require Pod::Usage;
Pod::Usage::pod2usage({ '-verbose' => 1 });
}
sub main() {
my %options = (
synthesis_filter => '.cz:xz -7',
xml_info => 'auto',
xml_info_filter => '.lzma:xz -7',
versioned => 'auto'
);
GetOptions(
'clean' => \$options{no_incremental},
'no-bad-rpm' => \$options{no_bad_rpm},
'no-md5sum' => \$options{no_md5sum},
'no-clean-old-rpms' => \$options{no_clean_old_rpms},
'only-clean-old-rpms' => \$options{only_clean_old_rpms},
'nolock' => \$options{nolock},
'no-hdlist' => \$options{no_hdlist},
'allow-empty-media' => \$options{allow_empty_media},
'file-deps=s' => \$options{file_deps},
'synthesis-filter=s' => \$options{synthesis_filter},
'xml-info!' => \$options{xml_info},
'xml-info-filter=s' => \$options{xml_info_filter},
'versioned!' => \$options{versioned},
'media_info-dir=s' => \$options{media_info_dir},
'h|help' => sub { usage(); exit 0 },
'q|quiet' => sub { $options{verbose} = -1 },
'v|verbose' => sub { $options{verbose}++ },
'version' => sub { warn "$0 version $VERSION\n"; exit 0 },
);
@ARGV == 1 or usage();
my $rpms_dir = $ARGV[0];
$options{no_incremental} ||= $options{no_hdlist};
# Force locale to be C
# We don't translate anything but we would get translated package info and
# wrongly put it in hdlists
# https://bugs.mageia.org/show_bug.cgi?id=95
$ENV{LC_ALL} = 'C';
do_it($rpms_dir, %options);
}
# global vars
my ($no_bad_rpm, $verbose);
my $tmp_header;
sub do_we_use_recommends {
my ($rpms_dir) = @_;
my @files = glob("$rpms_dir/../../core/release/mageia-release-common*");
if (@files) {
# fast path:
return !any { /mga[1-4]/ } @files;
} else {
# slow path:
return glob("$rpms_dir/*mga[5-9].*.rpm") ? 1 : 0;
}
}
sub do_it {
my ($rpms_dir, %options) = @_;
$verbose = $options{verbose};
$no_bad_rpm = $options{no_bad_rpm};
my @rpms = grep { /\.rpm$/ } all($rpms_dir);
@rpms || $options{allow_empty_media} or die "no *.rpm found in $rpms_dir (use --allow-empty-media?)\n";
my $media_info_dir = $options{media_info_dir} || "$rpms_dir/media_info";
-e $media_info_dir || mkdir $media_info_dir or die "Can't mkdir $media_info_dir: $!\n";
-d $media_info_dir && -w _ && -x _ or die "$media_info_dir isn't a writable directory, bailing out\n";
my ($synthesis_suffix, $synthesis_filter) = split(":", $options{synthesis_filter});
my ($xml_info_suffix, $xml_info_filter) = split(":", $options{xml_info_filter});
my $synthesis = "$media_info_dir/synthesis.hdlist$synthesis_suffix";
my $lock_file = "$media_info_dir/UPDATING";
$tmp_header = "$media_info_dir/.tmp-header";
my $lock = !$options{nolock} && global_lock($lock_file);
$SIG{INT} = sub {
unlink "$media_info_dir/hdlist.cz.tmp", "$synthesis.tmp", $tmp_header;
unlink $lock_file if $lock;
exit 1;
};
END { unlink $lock_file if $lock }
#- handle old-rpms.lst
my $old_rpms_file = "$media_info_dir/old-rpms.lst";
my $old_rpms = read_old_rpms_lst($old_rpms_file, $options{nolock});
if ($old_rpms) {
filter_out_old_rpms($rpms_dir, $old_rpms, \@rpms);
if (!$options{no_clean_old_rpms}) {
clean_old_rpms($rpms_dir, $old_rpms);
write_old_rpms_lst($old_rpms, $old_rpms_file);
}
}
$options{only_clean_old_rpms} and return;
my %rpms_todo = map { /(.*)\.rpm/ => 1 } @rpms;
my $urpm = new URPM;
read_file_deps($urpm, $options{file_deps}) if $options{file_deps};
if ($options{xml_info} eq 'auto') {
$options{xml_info} = -e "$media_info_dir/info.xml$xml_info_suffix";
}
my @xml_media_info = $options{xml_info} ? ('info', 'files', 'changelog') : @{[]};
# default to "@suggests@" lines on older distros, "@recommends@" lines on newer:
my $output_recommends = do_we_use_recommends($rpms_dir);
build($urpm, \%rpms_todo, $media_info_dir, $rpms_dir, \@xml_media_info, $options{no_incremental}, $options{no_hdlist}, $xml_info_suffix, $xml_info_filter, $synthesis);
build_synthesis($urpm, "$synthesis.tmp", $synthesis_filter, $output_recommends);
if (1) {
my @media_info_files = ($options{no_hdlist} ? @{[]} : 'hdlist.cz',
"synthesis.hdlist$synthesis_suffix", map { "$_.xml$xml_info_suffix" } @xml_media_info);
foreach my $name (@media_info_files) {
print "replacing $media_info_dir/$name with $name.tmp\n" if $verbose >= 0;
rename "$media_info_dir/$name.tmp", "$media_info_dir/$name" or die "rename $media_info_dir/$name failed: $!\n";
}
my $existed = remove_versioned_media_info($media_info_dir);
if ($options{versioned} && ($options{versioned} ne 'auto' || $existed)) {
push @media_info_files, generate_versioned_media_info($media_info_dir, \@media_info_files);
}
generate_md5sum($media_info_dir, \@media_info_files) if !$options{no_md5sum};
}
}
sub lock_file {
my ($file) = @_;
#- avoid putting a require on Fcntl ':flock' (which is perl and not perl-base).
my ($LOCK_EX, $LOCK_NB) = (2, 4);
print "locking $file\n" if $verbose > 0;
open(my $lock, '>', $file) or die "lock_file $file failed\n";
flock $lock, $LOCK_EX|$LOCK_NB or return;
$lock;
}
sub global_lock {
my ($file) = @_;
my $lock = lock_file($file) or die "another genhdlist2 already running\n";
$lock;
}
sub read_file_deps {
my ($urpm, $file_deps) = @_;
-r $file_deps or die "can't read $file_deps: $?\n";
foreach (cat_($file_deps)) {
chomp;
# mark that this "file provide" is required:
$urpm->{provides}{$_} = undef;
}
}
sub build {
my ($urpm, $rpms_todo, $media_info_dir, $rpms_dir, $xml_media_info, $b_no_incremental, $b_no_hdlist, $xml_info_suffix, $xml_info_filter, $synthesis) = @_;
my $hdlist = "$media_info_dir/hdlist.cz";
my $out_hdlist;
if (!$b_no_hdlist) {
$out_hdlist = MDV::Packdrakeng->new(
archive => "$hdlist.tmp",
compress => "gzip",
uncompress => "gzip -d",
extern => 1,
comp_level => 9,
) or die "Can't create archive";
}
my $out = {
hdlist => $out_hdlist,
map { $_ => open_xml_filter("$media_info_dir/$_.xml${xml_info_suffix}.tmp", $xml_info_filter) } @$xml_media_info
};
if (-e $hdlist && !$b_no_incremental) {
print "filtering $hdlist into hdlist.cz.tmp\n" if $verbose >= 0;
# keep real filesizes from synthesis since hdlist no more have filesizes since 2008
# else URPM will put a bogus estimation:
my $sizes = get_filesize_from_synthesis($urpm, $rpms_todo, $synthesis);
filter_existing_hdlist($urpm, $rpms_todo, $hdlist, $out, $sizes);
}
add_new_rpms_to_hdlist($urpm, $rpms_todo, $out, $rpms_dir);
close_xml($out->{$_}) foreach @$xml_media_info;
}
sub get_filesize_from_synthesis {
my ($urpm, $rpms_todo, $synthesis) = @_;
return {} if !-r $synthesis;
my %sizes;
$urpm->parse_synthesis($synthesis, packing => 1, callback => sub {
my (undef, $pkg) = @_;
my $fullname = $pkg->fullname;
$sizes{$fullname} = $pkg->filesize if $rpms_todo->{$fullname};
0; # don't keep in memory
});
\%sizes;
}
sub filter_existing_hdlist {
my ($urpm, $rpms_todo, $in_hdlist, $out, $sizes) = @_;
if ($urpm->parse_hdlist($in_hdlist, packing => 1, callback => sub {
my (undef, $pkg) = @_;
my $fullname = $pkg->fullname;
if (delete $rpms_todo->{$fullname}) {
print "keeping $fullname\n" if $verbose > 1;
add_pkg($out, $pkg);
# readd back real filesize from synthesis since hdlist no more have filesizes since 2008
# else URPM will put a bogus estimation:
$pkg->set_filesize($sizes->{$fullname}) if $sizes->{$fullname};
1; # do keep in memory
} else {
print "removing $fullname\n" if $verbose > 0;
0; # don't keep in memory
}
})) {
# ok
} else {
my $nb = @{$urpm->{depslist}};
print STDERR "parse_hdlist has failed, keeping $nb headers successfully parsed\n" if $verbose >= 0;
}
}
sub add_new_rpms_to_hdlist {
my ($urpm, $rpms_todo, $out, $rpms_dir) = @_;
my @rpms = keys %$rpms_todo or return;
if ($verbose >= 0) {
if (@rpms > 100 || $verbose == 0) {
print "adding ", int(@rpms), " new rpms not available in existing hdlist\n";
} else {
print "adding ", join(' ', @rpms), "\n";
}
}
foreach (@rpms) {
print "adding $_\n" if $verbose > 1;
my $rpm = "$rpms_dir/$_.rpm";
my ($id, undef) = $urpm->parse_rpm($rpm);
if (!defined $id) {
if ($no_bad_rpm) {
print STDERR "bad rpm $rpm\n";
next;
} else {
die "bad rpm $rpm\n";
}
}
my $pkg = $urpm->{depslist}[$id];
add_pkg($out, $pkg);
$pkg->pack_header; # for synthesis
}
}
sub open_xml_filter {
my ($file, $xml_info_filter) = @_;
open(my $F, "| $xml_info_filter > $file") or die "can't open $file\n";
binmode $F, ':utf8';
print $F qq(<?xml version="1.0" encoding="utf-8"?>\n);
print $F "<media_info>";
$F;
}
sub close_xml {
my ($F) = @_;
print $F "</media_info>\n";
}
sub ensure_utf8 {
if (utf8::is_utf8($_[0])) {
utf8::valid($_[0]) and return;
utf8::encode($_[0]); #- disable utf8 flag
utf8::upgrade($_[0]);
} else {
utf8::decode($_[0]); #- try to set utf8 flag
utf8::valid($_[0]) and return;
warn "do not know what to with $_[0]\n";
}
}
sub encode_xml {
my ($s) = @_;
$s =~ s/&/&/g;
$s =~ s/</</g;
$s =~ s/>/>/g;
ensure_utf8($s);
$s;
}
sub encode_xml_attribute {
my ($s) = @_;
$s = encode_xml($s);
$s =~ /'/ or return qq('$s');
$s =~ /"/ or return qq("$s");
# argh!! hum replacing " with '' :-D
$s =~ s/"/''/g;
print STDERR qq(encoding xml attribute: replacing " with '' for $s\n);
qq("$s");
}
sub add_pkg {
my ($out, $pkg) = @_;
my $fullname = $pkg->fullname;
if ($out->{hdlist}) {
add_pkg_header($out->{hdlist}, $pkg, $fullname);
}
if ($out->{files}) {
my $F = $out->{files};
print $F qq(<files fn="$fullname">\n);
print $F encode_xml($_), "\n" foreach $pkg->files;
print $F qq(</files>);
}
if ($out->{info}) {
my $F = $out->{info};
print $F qq(<info fn="$fullname");
printf $F qq(\n $_=%s), encode_xml_attribute($pkg->$_) foreach qw(sourcerpm url license);
print $F qq(>\n);
print $F encode_xml($pkg->description), "\n";
print $F qq(</info>);
}
if ($out->{changelog} && $pkg->changelog_name) {
my $F = $out->{changelog};
my @ti = $pkg->changelog_time;
my @na = $pkg->changelog_name;
my @te = $pkg->changelog_text;
print $F qq(<changelogs fn="$fullname">\n);
foreach (0 .. $#ti) {
print $F qq(<log time="$ti[$_]">\n);
print $F qq(<log_name>), encode_xml($na[$_]), qq(</log_name>\n);
print $F qq(<log_text>), encode_xml($te[$_]), qq(</log_text>\n);
print $F qq(</log>);
}
print $F qq(</changelogs>);
}
}
sub add_pkg_header {
my ($out, $pkg, $fullname) = @_;
{
open(my $fh, ">", $tmp_header);
$pkg->build_header(fileno $fh);
}
{
open(my $fh, "<", $tmp_header);
$out->add_virtual('f', $fullname, $fh);
}
unlink $tmp_header;
}
sub build_synthesis {
my ($urpm, $synthesis, $synthesis_filter, $output_recommends) = @_;
$urpm->build_synthesis(
start => 0,
end => $#{$urpm->{depslist}},
synthesis => $synthesis,
filter => $synthesis_filter,
recommends => $output_recommends,
) or die "build_synthesis failed (disk full?)\n";
}
sub remove_versioned_media_info {
my ($media_info_dir) = @_;
my @l = grep { /^\d{8}-\d{6}-/ && -l "$media_info_dir/$_" } all($media_info_dir) or return;
foreach (@l) {
print "removing previous versioned $_\n" if $verbose > 0;
unlink "$media_info_dir/$_";
}
1;
}
sub generate_versioned_media_info {
my ($media_info_dir, $media_info_files) = @_;
require POSIX;
my $version = POSIX::strftime("%Y%m%d-%H%M%S", gmtime());
map {
print "creating versioned media_info $_: $version-$_\n" if $verbose > 0;
symlink $_, "$media_info_dir/$version-$_";
"$version-$_";
} @$media_info_files;
}
sub generate_md5sum {
my ($media_info_dir, $media_info_files) = @_;
require Digest::MD5;
print "updating $media_info_dir/MD5SUM\n" if $verbose >= 0;
my $cwd = getcwd();
chdir($media_info_dir);
my $m;
foreach my $fn (@$media_info_files) {
open(my $fh, '<', $fn) or die "Can't open '$fn': $!";
binmode($fh);
$m .= Digest::MD5->new->addfile($fh)->hexdigest . " $fn\n";
}
chdir($cwd);
unlink "$media_info_dir/MD5SUM"; # ensure no hard link is used
open(my $f, '>', "$media_info_dir/MD5SUM") or die "Can't write MD5SUM: $!\n";
print $f $m;
}
################################################################################
sub read_old_rpms_lst {
my ($file, $nolock) = @_;
-e $file or return;
my $lock = !$nolock && lock_file("$file.lock")
or $verbose >= 0 && print "lock failed, we simply won't write the modified file\n";
require Config::IniFiles;
my $lst = Config::IniFiles->new('-file' => $file) or die "invalid $file\n";
{ lst => $lst, lock => $lock };
}
sub write_old_rpms_lst {
my ($old_rpms, $file) = @_;
if ($old_rpms->{lock}) {
sleep 10;
$old_rpms->{lst}->WriteConfig($file); # no need to use a temp file + rename since WriteConfig is doing so
print "unlocking $file.lock\n" if $verbose > 0;
close(delete $old_rpms->{lock});
unlink "$file.lock";
} else {
# we don't have the lock, so don't write
}
}
sub clean_old_rpms {
my ($rpms_dir, $old_rpms) = @_;
my $lst = $old_rpms->{lst};
foreach my $pkg ($lst->Parameters('Remove')) {
my $keep;
if (-e "$rpms_dir/$pkg") {
my $date = $lst->val('Remove', $pkg);
if ($date >= time()) {
$keep = 1;
print "[OLD-RPMS] keeping $pkg (it is scheduled for " . $lst->GetParameterComment('Remove', $pkg) . "# )\n" if $verbose > 0;
} else {
print "[OLD-RPMS] removing rpm file $pkg (was scheduled for " . $lst->GetParameterComment('Remove', $pkg) . "# )\n" if $verbose >= 0;
unlink "$rpms_dir/$pkg";
}
} else {
print "[OLD-RPMS] $pkg already removed\n" if $verbose >= 0;
}
$keep or $old_rpms->{lst}->delval('Remove', $pkg);
}
}
# 'Remove'
sub clean_old_rpms {
my ($rpms_dir, $old_rpms) = @_;
_apply_date_old_rpms($rpms_dir, $old_rpms, 'Remove', 'OLD-RPMS', sub {
my ($pkg, $date) = @_;
print "[OLD-RPMS] removing rpm file $pkg (was scheduled for $date)\n" if $verbose >= 0;
unlink "$rpms_dir/$pkg";
});
}
sub _apply_date_old_rpms {
my ($rpms_dir, $old_rpms, $section, $section_tag, $do_it) = @_;
my $lst = $old_rpms->{lst};
foreach my $pkg ($lst->Parameters($section)) {
my $keep;
if (-e "$rpms_dir/$pkg") {
my $date = $lst->val($section, $pkg);
if ($date >= time()) {
$keep = 1;
print "[$section_tag] keeping $pkg (it is scheduled for " . $lst->GetParameterComment($section, $pkg) . "# )\n" if $verbose > 0;
} else {
$do_it->($pkg, $verbose >= 0 && $lst->GetParameterComment($section, $pkg));
}
} else {
print "[$section_tag] $pkg already removed\n" if $verbose >= 0;
}
$keep or $old_rpms->{lst}->delval($section, $pkg);
}
}
sub filter_out_old_rpms {
my ($rpms_dir, $old_rpms, $rpms_list) = @_;
_apply_date_old_rpms($rpms_dir, $old_rpms, 'Keep-in-hdlist', 'KEEP-IN-HDLIST', sub {
my ($pkg, $date) = @_;
print "[KEEP-IN-HDLIST] removing $pkg from hdlist (was scheduled for $date)\n" if $verbose >= 0;
});
my %old = map { $_ => 1 } $old_rpms->{lst}->Parameters('Remove');
delete $old{$_} foreach $old_rpms->{lst}->Parameters('Keep-in-hdlist');
@$rpms_list = grep { !$old{$_} } @$rpms_list;
}
################################################################################
sub cat_ { my @l = map { my $F; open($F, '<', $_) ? <$F> : () } @_; wantarray() ? @l : join '', @l }
sub all {
my $d = shift;
local *F;
opendir F, $d or return;
my @l = grep { $_ ne '.' && $_ ne '..' } readdir F;
closedir F;
@l;
}
__END__
=head1 NAME
genhdlist2 - generates an hdlist and a synthesis file
=head1 SYNOPSIS
genhdlist2 [options] dir
=head1 OPTIONS
=over 4
=item B<--clean>
Do not use existing hdlist.cz, build hdlist from scratch.
=item B<--file-deps>
Use the given file to know which file dependencies are used by other media.
Here is an example of use:
package foo in medium contrib requires /bin/bar
package bar in medium main has file /bin/bar
% echo /bin/bar > media/media_info/file-deps
% genhdlist2 --file-deps media/media_info/file-deps media/main/release
without file-deps, media/main/release/media_info/synthesis.hdlist.cz would not provide /bin/bar.
This option is not needed for file-deps inside a same medium.
=item B<--no-md5sum>
Do not generate MD5SUM file.
=item B<--no-bad-rpm>
Do not abort on bad rpms.
=item B<--no-clean-old-rpms>
Take into account old-rpms.lst, but don't remove rpms from repository
=item B<--only-clean-old-rpms>
F<genhdlist2> will only clean old rpms from repository, it will not update
hdlist/synthesis.
=item B<--nolock>
Don't lock the media (can be useful when locks fail, eg NFS). Since the lock
is used to verify no other genhdlist2 process is running on the same media, it
is a dangerous option.
=item B<--allow-empty-media>
By default if no *.rpm files are found, F<genhdlist2> will exit on error.
To allow building empty media, use this option.
=item B<--media_info-dir> I<directory>
Write hdlist/synthesis in this directory instead of <dir>/media_info
(mostly useful for debugging)
=item B<--synthesis-filter SUFFIX:FILTER>
Use SUFFIX for filename suffix and filter through FILTER for compression.
By default genhdlist2 will use '.cz:xz -7'.
=item B<--xml-info>
Force to generate xml info. By default genhdlist2 will only regenerate xml info files already there in media_info/
=item B<--xml-info-filter SUFFIX:FILTER>
Use SUFFIX for filename suffix and filter through FILTER for compression.
By default genhdlist2 will use '.lzma:xz -7'.
=item B<--versioned>
Force to generate versioned media info.
=item B<--no-hdlist>
Disable generation of hdlist.cz.
=item B<-v>
Be verbose. Use one more B<-v> to get even more verbose.
=item B<--quiet>
Quiet mode.
=back
=head1 DESCRIPTION
F<genhdlist2> is used to generate an hdlist and an associated synthesis file
from a set of RPM packages found in the directory passed on the command-line.
It will put the hdlist and synthesis files in media_info/ sub-directory.
Without B<--clean>, F<genhdlist2> is incremental, ie it will use existing
media_info/hdlist.cz: it will first remove package headers for packages that
are no more in the directory
#- SCSI and RAID devices on the same machine. From what I see so far, the default
#- BIOS boot harddrive will be
#- 1. The first IDE device if IDE exists. Or
#- 2. The first SCSI device if SCSI exists. Or
#- 3. The first RAID device if RAID exists.
getIDE(), getSCSI(), getDAC960(), getCompaqSmartArray(), getATARAID();
}
sub hds() { grep { may_be_a_hd($_) } get() }
sub tapes() { grep { $_->{media_type} eq 'tape' } get() }
sub cd
|