#!/usr/bin/perl
use strict;

# This script expects the directory ~/samba-rsync-ftp to exist and to be a
# copy of the /home/ftp/pub/rsync dir on samba.org.  It also requires a
# pristine CVS checkout of rsync (don't use your normal rsync build dir
# unless you're 100% sure that there are not unchecked-in changes).
#
# If this is run with -ctu, it will make an updated "nightly" tar file in
# the nightly dir.  It will also remove any old tar files, regenerate the
# HTML man pages in the nightly dir, and then rsync the changes to the
# samba.org server.

use Getopt::Long;
use Date::Format;

# Choose any dir where a pristine rsync has been checked out of CVS.
our $unpacked = $ENV{HOME} . '/release/nightly';
# Where the local copy of /home/ftp/pub/rsync/nightly should be updated.
our $nightly = $ENV{HOME} . '/samba-rsync-ftp/nightly';
our $nightly_symlink = "$nightly/rsync-HEAD.tar.gz";

our($cvs_update, $make_tar, $upload, $help_opt);
&Getopt::Long::Configure('bundling');
&usage if !&GetOptions(
    'cvs-update|c' => \$cvs_update,
    'make-tar|t' => \$make_tar,
    'upload|u' => \$upload,
    'help|h' => \$help_opt,
) || $help_opt;

our $name = time2str('rsync-HEAD-%Y%m%d-%H%M%Z', time, 'GMT');
our $ztoday = time2str('%d %b %Y', time);
our $today = $ztoday;

chdir($unpacked) or die $!;

if ($cvs_update) {
    print "Updating from cvs...\n";
    system 'cvs -q up' and die $!;
}

if ($make_tar) {
    print "Generating list of active CVS files...\n";
    my($dir, @files);
    open(CVS, '-|', 'cvs status 2>&1') or die $!;
    while (<CVS>) {
	if (/^cvs status: Examining (.*)/) {
	    if ($1 eq '.') {
		$dir = '';
	    } else {
		push(@files, $1);
		$dir = $1 . '/';
	    }
	} elsif (/^File: (.*?)\s+Status: (.*)/ && $1 ne '.cvsignore') {
	    push(@files, $dir . $1);
	    if ($2 ne 'Up-to-date') {
		print "*** Not up-to-date: $dir$1\n";
	    }
	}
    }
    close CVS;

    print "Creating $unpacked/$name.tar.gz\n";
    chdir('..') or die $!;
    rename($unpacked, $name) or die $!;
    open(TAR, '|-', "fakeroot tar --files-from=- --no-recursion --mode=g-w -czf $nightly/$name.tar.gz $name") or die $!;
    foreach (@files) {
	print TAR "$name/$_\n";
    }
    close TAR;
    rename($name, $unpacked) or die $!;
    unlink($nightly_symlink);
    symlink("$name.tar.gz", $nightly_symlink);
}

chdir($nightly) or die $!;

foreach my $fn (qw( rsync.yo rsyncd.conf.yo )) {
    my $html_fn = $fn;
    $html_fn =~ s/\.yo/.html/;

    open(IN, '<', "$unpacked/$fn") or die $!;
    undef $/; $_ = <IN>; $/ = "\n";
    close IN;

    s/^(manpage\([^)]+\)\(\d+\)\()[^)]+(\).*)/$1$today$2/m;
    #s/^(This man ?page is current for version) \S+ (of rsync)/$1 $version $2/m;

    open(OUT, '>', $fn) or die $!;
    print OUT $_;
    close OUT;

    system "yodl2html -o $html_fn $fn";

    unlink($fn);
}

my $cnt = 0;
open(PIPE, '-|', 'ls -1t rsync-HEAD-*') or die $!;
while (<PIPE>) {
    chomp;
    next if $cnt++ < 10;
    unlink($_);
}
close PIPE;

system 'ls -ltr';

if ($upload) {
    my $opt = '';
    if (defined $ENV{RSYNC_PARTIAL_DIR}) {
	$opt = " -f 'R $ENV{RSYNC_PARTIAL_DIR}'";
    }
    system "rsync$opt -aviHP --delete-after . samba.org:/home/ftp/pub/rsync/nightly";
}

exit;

sub usage
{
    die <<EOT;
Usage: nightly-rsync [OPTIONS]

 -c, --cvs-update  update $unpacked via CVS.
 -t, --make-tar    create a new tar file in $nightly
 -u, --upload      upload the revised nightly dir to samba.org
 -h, --help        display this help
EOT
}