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rsync

#!/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
# git checkout of rsync (feel free to use your normal rsync build dir as
# long as it doesn't have any uncommitted 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;

# Where the local copy of /home/ftp/pub/rsync/dev/nightly should be updated.
our $dest = $ENV{HOME} . '/samba-rsync-ftp/dev/nightly';
our $nightly_symlink = "$dest/rsync-HEAD.tar.gz";

our($make_tar, $upload, $help_opt);
&Getopt::Long::Configure('bundling');
&usage if !&GetOptions(
    '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;
our $gen_target = $upload ? 'gensend' : 'gen';

die "$dest does not exist\n" unless -d $dest;
die "There is no .git dir in the current directory.\n" unless -d '.git';
die "There is no rsync checkout in the current directory.\n" unless -f 'rsyncd.conf.yo';

if ($make_tar) {
    open(IN, '-|', 'git status') or die $!;
    my $status = join('', <IN>);
    close IN;
    die "The checkout is not clean:\n", $status unless $status =~ /\nnothing to commit \(working directory clean\)/;
    die "The checkout is not on the master branch.\n" unless $status =~ /^# On branch master\n/;
    system "make $gen_target" and die "make $gen_target failed!\n";

    my @extra_files;
    open(IN, '<', 'Makefile.in') or die "Couldn't open Makefile.in: $!\n";
    while (<IN>) {
	if (s/^GENFILES=//) {
	    while (s/\\$//) {
		$_ .= <IN>;
	    }
	    @extra_files = split(' ', $_);
	    last;
	}
    }
    close IN;

    my $confversion;
    open(IN, '<', 'configure.ac') or die "Unable to open configure.ac: $!\n";
    while (<IN>) {
	if (/^RSYNC_VERSION=(.*)/) {
	    $confversion = $1;
	    last;
	}
    }
    close IN;
    die "Unable to find RSYNC_VERSION in configure.ac\n" unless defined $confversion;

    open(IN, '<', 'OLDNEWS') or die "Unable to open OLDNEWS: $!\n";
    $_ = <IN>;
    my($lastversion) = /(\d+\.\d+\.\d+)/;
    my $last_protocol_version;
    while (<IN>) {
	if (my($ver,$pdate,$pver) = /^\s+\S\S\s\S\S\S\s\d\d\d\d\s+(\d+\.\d+\.\d+)\s+(\d\d \w\w\w \d\d\d\d\s+)?(\d+)$/) {
	    $last_protocol_version = $pver if $ver eq $lastversion;
	}
    }
    close IN;
    die "Unable to determine protocol_version for $lastversion.\n" unless defined $last_protocol_version;

    my($protocol_version,$subprotocol_version);
    open(IN, '<', 'rsync.h') or die "Unable to open rsync.h: $!\n";
    while (<IN>) {
	if (/^#define\s+PROTOCOL_VERSION\s+(\d+)/) {
	    $protocol_version = $1;
	} elsif (/^#define\s+SUBPROTOCOL_VERSION\s+(\d+)/) {
	    $subprotocol_version = $1;
	}
    }
    close IN;
    die "Unable to determine the current PROTOCOL_VERSION.\n" unless defined $protocol_version;
    die "Unable to determine the current SUBPROTOCOL_VERSION.\n" unless defined $subprotocol_version;

    if ($confversion =~ /dev|pre/) {
	if ($last_protocol_version ne $protocol_version) {
	    if ($subprotocol_version == 0) {
		die "SUBPROTOCOL_VERSION must not be 0 for a non-final release with a changed PROTOCOL_VERSION.\n";
	    }
	} else {
	    if ($subprotocol_version != 0) {
		die "SUBPROTOCOL_VERSION must be 0 when the PROTOCOL_VERSION hasn't changed from the last release.\n";
	    }
	}
    } else {
	if ($subprotocol_version != 0) {
	    die "SUBPROTOCOL_VERSION must be 0 for a final release.\n";
	}
    }

    print "Creating $name.tar.gz\n";
    system "rsync -a @extra_files $name/";
    system "git archive --format=tar --prefix=$name/ HEAD | tar xf -";
    system "support/git-set-file-times --prefix=$name/";
    system "fakeroot tar czf $dest/$name.tar.gz $name; rm -rf $name";

    unlink($nightly_symlink);
    symlink("$name.tar.gz", $nightly_symlink);
}

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

    open(IN, '<', $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, '>', $yo_tmp) or die $!;
    print OUT $_;
    close OUT;

    system 'yodl2html', '-o', $html_fn, $yo_tmp;

    unlink($yo_tmp);
}

chdir($dest) or die $!;

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/dev/nightly";
}

exit;

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

 -t, --make-tar    create a new tar file in $dest
 -u, --upload      upload the revised nightly dir to samba.org
 -h, --help        display this help
EOT
}