16 files changed, 0 insertions, 6181 deletions

diff --git a/third_party/git/perl/Git/I18N.pm b/third_party/git/perl/Git/I18N.pm
deleted file mode 100644
index bfb4fb67a13f..000000000000
--- a/third_party/git/perl/Git/I18N.pm
+++ /dev/null
@@ -1,115 +0,0 @@
-package Git::I18N;
-use 5.008;
-use strict;
-use warnings;
-BEGIN {
-	require Exporter;
-	if ($] < 5.008003) {
-		*import = \&Exporter::import;
-	} else {
-		# Exporter 5.57 which supports this invocation was
-		# released with perl 5.8.3
-		Exporter->import('import');
-	}
-}
-
-our @EXPORT = qw(__ __n N__);
-our @EXPORT_OK = @EXPORT;
-
-sub __bootstrap_locale_messages {
-	our $TEXTDOMAIN = 'git';
-	our $TEXTDOMAINDIR ||= $ENV{GIT_TEXTDOMAINDIR} || '@@LOCALEDIR@@';
-
-	require POSIX;
-	POSIX->import(qw(setlocale));
-	# Non-core prerequisite module
-	require Locale::Messages;
-	Locale::Messages->import(qw(:locale_h :libintl_h));
-
-	setlocale(LC_MESSAGES(), '');
-	setlocale(LC_CTYPE(), '');
-	textdomain($TEXTDOMAIN);
-	bindtextdomain($TEXTDOMAIN => $TEXTDOMAINDIR);
-
-	return;
-}
-
-BEGIN
-{
-	# Used by our test script to see if it should test fallbacks or
-	# not.
-	our $__HAS_LIBRARY = 1;
-
-	local $@;
-	eval {
-		__bootstrap_locale_messages();
-		*__ = \&Locale::Messages::gettext;
-		*__n = \&Locale::Messages::ngettext;
-		1;
-	} or do {
-		# Tell test.pl that we couldn't load the gettext library.
-		$Git::I18N::__HAS_LIBRARY = 0;
-
-		# Just a fall-through no-op
-		*__ = sub ($) { $_[0] };
-		*__n = sub ($$$) { $_[2] == 1 ? $_[0] : $_[1] };
-	};
-
-	sub N__($) { return shift; }
-}
-
-1;
-
-__END__
-
-=head1 NAME
-
-Git::I18N - Perl interface to Git's Gettext localizations
-
-=head1 SYNOPSIS
-
-	use Git::I18N;
-
-	print __("Welcome to Git!\n");
-
-	printf __("The following error occurred: %s\n"), $error;
-
-	printf __n("committed %d file\n", "committed %d files\n", $files), $files;
-
-
-=head1 DESCRIPTION
-
-Git's internal Perl interface to gettext via L<Locale::Messages>. If
-L<Locale::Messages> can't be loaded (it's not a core module) we
-provide stub passthrough fallbacks.
-
-This is a distilled interface to gettext, see C<info '(gettext)Perl'>
-for the full interface. This module implements only a small part of
-it.
-
-=head1 FUNCTIONS
-
-=head2 __($)
-
-L<Locale::Messages>'s gettext function if all goes well, otherwise our
-passthrough fallback function.
-
-=head2 __n($$$)
-
-L<Locale::Messages>'s ngettext function or passthrough fallback function.
-
-=head2 N__($)
-
-No-operation that only returns its argument. Use this if you want xgettext to
-extract the text to the pot template but do not want to trigger retrival of the
-translation at run time.
-
-=head1 AUTHOR
-
-E<AElig>var ArnfjE<ouml>rE<eth> Bjarmason <avarab@gmail.com>
-
-=head1 COPYRIGHT
-
-Copyright 2010 E<AElig>var ArnfjE<ouml>rE<eth> Bjarmason <avarab@gmail.com>
-
-=cut
diff --git a/third_party/git/perl/Git/IndexInfo.pm b/third_party/git/perl/Git/IndexInfo.pm
deleted file mode 100644
index 2a7b4908f3e6..000000000000
--- a/third_party/git/perl/Git/IndexInfo.pm
+++ /dev/null
@@ -1,35 +0,0 @@
-package Git::IndexInfo;
-use strict;
-use warnings;
-use Git qw/command_input_pipe command_close_pipe/;
-
-sub new {
-	my ($class) = @_;
-	my $hash_algo = Git::config('extensions.objectformat') || 'sha1';
-	my ($gui, $ctx) = command_input_pipe(qw/update-index -z --index-info/);
-	bless { gui => $gui, ctx => $ctx, nr => 0, hash_algo => $hash_algo}, $class;
-}
-
-sub remove {
-	my ($self, $path) = @_;
-	my $length = $self->{hash_algo} eq 'sha256' ? 64 : 40;
-	if (print { $self->{gui} } '0 ', 0 x $length, "\t", $path, "\0") {
-		return ++$self->{nr};
-	}
-	undef;
-}
-
-sub update {
-	my ($self, $mode, $hash, $path) = @_;
-	if (print { $self->{gui} } $mode, ' ', $hash, "\t", $path, "\0") {
-		return ++$self->{nr};
-	}
-	undef;
-}
-
-sub DESTROY {
-	my ($self) = @_;
-	command_close_pipe($self->{gui}, $self->{ctx});
-}
-
-1;
diff --git a/third_party/git/perl/Git/LoadCPAN.pm b/third_party/git/perl/Git/LoadCPAN.pm
deleted file mode 100644
index e5585e75e809..000000000000
--- a/third_party/git/perl/Git/LoadCPAN.pm
+++ /dev/null
@@ -1,104 +0,0 @@
-package Git::LoadCPAN;
-use 5.008;
-use strict;
-use warnings;
-
-=head1 NAME
-
-Git::LoadCPAN - Wrapper for loading modules from the CPAN (OS) or Git's own copy
-
-=head1 DESCRIPTION
-
-The Perl code in Git depends on some modules from the CPAN, but we
-don't want to make those a hard requirement for anyone building from
-source.
-
-Therefore the L<Git::LoadCPAN> namespace shipped with Git contains
-wrapper modules like C<Git::LoadCPAN::Module::Name> that will first
-attempt to load C<Module::Name> from the OS, and if that doesn't work
-will fall back on C<FromCPAN::Module::Name> shipped with Git itself.
-
-Usually distributors will not ship with Git's Git::FromCPAN tree at
-all via the C<NO_PERL_CPAN_FALLBACKS> option, preferring to use their
-own packaging of CPAN modules instead.
-
-This module is only intended to be used for code shipping in the
-C<git.git> repository. Use it for anything else at your peril!
-
-=cut
-
-# NO_PERL_CPAN_FALLBACKS_STR evades the sed search-replace from the
-# Makefile, and allows for detecting whether the module is loaded from
-# perl/Git as opposed to perl/build/Git, which is useful for one-off
-# testing without having Error.pm et al installed.
-use constant NO_PERL_CPAN_FALLBACKS_STR => '@@' . 'NO_PERL_CPAN_FALLBACKS' . '@@';
-use constant NO_PERL_CPAN_FALLBACKS => (
-	q[@@NO_PERL_CPAN_FALLBACKS@@] ne ''
-	and
-	q[@@NO_PERL_CPAN_FALLBACKS@@] ne NO_PERL_CPAN_FALLBACKS_STR
-);
-
-sub import {
-	shift;
-	my $caller = caller;
-	my %args = @_;
-	my $module = exists $args{module} ? delete $args{module} : die "BUG: Expected 'module' parameter!";
-	my $import = exists $args{import} ? delete $args{import} : die "BUG: Expected 'import' parameter!";
-	die "BUG: Too many arguments!" if keys %args;
-
-	# Foo::Bar to Foo/Bar.pm
-	my $package_pm = $module;
-	$package_pm =~ s[::][/]g;
-	$package_pm .= '.pm';
-
-	eval {
-		require $package_pm;
-		1;
-	} or do {
-		my $error = $@ || "Zombie Error";
-
-		if (NO_PERL_CPAN_FALLBACKS) {
-			chomp(my $error = sprintf <<'THEY_PROMISED', $module);
-BUG: The '%s' module is not here, but NO_PERL_CPAN_FALLBACKS was set!
-
-Git needs this Perl module from the CPAN, and will by default ship
-with a copy of it. This Git was built with NO_PERL_CPAN_FALLBACKS,
-meaning that whoever built it promised to provide this module.
-
-You're seeing this error because they broke that promise, and we can't
-load our fallback version, since we were asked not to install it.
-
-If you're seeing this error and didn't package Git yourself the
-package you're using is broken, or your system is broken. This error
-won't appear if Git is built without NO_PERL_CPAN_FALLBACKS (instead
-we'll use our fallback version of the module).
-THEY_PROMISED
-			die $error;
-		}
-
-		my $Git_LoadCPAN_pm_path = $INC{"Git/LoadCPAN.pm"} || die "BUG: Should have our own path from %INC!";
-
-		require File::Basename;
-		my $Git_LoadCPAN_pm_root = File::Basename::dirname($Git_LoadCPAN_pm_path) || die "BUG: Can't figure out lib/Git dirname from '$Git_LoadCPAN_pm_path'!";
-
-		require File::Spec;
-		my $Git_pm_FromCPAN_root = File::Spec->catdir($Git_LoadCPAN_pm_root, '..', 'FromCPAN');
-		die "BUG: '$Git_pm_FromCPAN_root' should be a directory!" unless -d $Git_pm_FromCPAN_root;
-
-		local @INC = ($Git_pm_FromCPAN_root, @INC);
-		require $package_pm;
-	};
-
-	if ($import) {
-		no strict 'refs';
-		*{"${caller}::import"} = sub {
-			shift;
-			use strict 'refs';
-			unshift @_, $module;
-			goto &{"${module}::import"};
-		};
-		use strict 'refs';
-	}
-}
-
-1;
diff --git a/third_party/git/perl/Git/LoadCPAN/Error.pm b/third_party/git/perl/Git/LoadCPAN/Error.pm
deleted file mode 100644
index c6d2c45d808b..000000000000
--- a/third_party/git/perl/Git/LoadCPAN/Error.pm
+++ /dev/null
@@ -1,10 +0,0 @@
-package Git::LoadCPAN::Error;
-use 5.008;
-use strict;
-use warnings;
-use Git::LoadCPAN (
-	module => 'Error',
-	import => 1,
-);
-
-1;
diff --git a/third_party/git/perl/Git/LoadCPAN/Mail/Address.pm b/third_party/git/perl/Git/LoadCPAN/Mail/Address.pm
deleted file mode 100644
index f70a4f064c3c..000000000000
--- a/third_party/git/perl/Git/LoadCPAN/Mail/Address.pm
+++ /dev/null
@@ -1,10 +0,0 @@
-package Git::LoadCPAN::Mail::Address;
-use 5.008;
-use strict;
-use warnings;
-use Git::LoadCPAN (
-	module => 'Mail::Address',
-	import => 0,
-);
-
-1;
diff --git a/third_party/git/perl/Git/Packet.pm b/third_party/git/perl/Git/Packet.pm
deleted file mode 100644
index b75738bed4b5..000000000000
--- a/third_party/git/perl/Git/Packet.pm
+++ /dev/null
@@ -1,173 +0,0 @@
-package Git::Packet;
-use 5.008;
-use strict;
-use warnings;
-BEGIN {
-	require Exporter;
-	if ($] < 5.008003) {
-		*import = \&Exporter::import;
-	} else {
-		# Exporter 5.57 which supports this invocation was
-		# released with perl 5.8.3
-		Exporter->import('import');
-	}
-}
-
-our @EXPORT = qw(
-			packet_compare_lists
-			packet_bin_read
-			packet_txt_read
-			packet_key_val_read
-			packet_bin_write
-			packet_txt_write
-			packet_flush
-			packet_initialize
-			packet_read_capabilities
-			packet_read_and_check_capabilities
-			packet_check_and_write_capabilities
-		);
-our @EXPORT_OK = @EXPORT;
-
-sub packet_compare_lists {
-	my ($expect, @result) = @_;
-	my $ix;
-	if (scalar @$expect != scalar @result) {
-		return undef;
-	}
-	for ($ix = 0; $ix < $#result; $ix++) {
-		if ($expect->[$ix] ne $result[$ix]) {
-			return undef;
-		}
-	}
-	return 1;
-}
-
-sub packet_bin_read {
-	my $buffer;
-	my $bytes_read = read STDIN, $buffer, 4;
-	if ( $bytes_read == 0 ) {
-		# EOF - Git stopped talking to us!
-		return ( -1, "" );
-	} elsif ( $bytes_read != 4 ) {
-		die "invalid packet: '$buffer'";
-	}
-	my $pkt_size = hex($buffer);
-	if ( $pkt_size == 0 ) {
-		return ( 1, "" );
-	} elsif ( $pkt_size > 4 ) {
-		my $content_size = $pkt_size - 4;
-		$bytes_read = read STDIN, $buffer, $content_size;
-		if ( $bytes_read != $content_size ) {
-			die "invalid packet ($content_size bytes expected; $bytes_read bytes read)";
-		}
-		return ( 0, $buffer );
-	} else {
-		die "invalid packet size: $pkt_size";
-	}
-}
-
-sub remove_final_lf_or_die {
-	my $buf = shift;
-	if ( $buf =~ s/\n$// ) {
-		return $buf;
-	}
-	die "A non-binary line MUST be terminated by an LF.\n"
-	    . "Received: '$buf'";
-}
-
-sub packet_txt_read {
-	my ( $res, $buf ) = packet_bin_read();
-	if ( $res != -1 and $buf ne '' ) {
-		$buf = remove_final_lf_or_die($buf);
-	}
-	return ( $res, $buf );
-}
-
-# Read a text packet, expecting that it is in the form "key=value" for
-# the given $key.  An EOF does not trigger any error and is reported
-# back to the caller (like packet_txt_read() does).  Die if the "key"
-# part of "key=value" does not match the given $key, or the value part
-# is empty.
-sub packet_key_val_read {
-	my ( $key ) = @_;
-	my ( $res, $buf ) = packet_txt_read();
-	if ( $res == -1 or ( $buf =~ s/^$key=// and $buf ne '' ) ) {
-		return ( $res, $buf );
-	}
-	die "bad $key: '$buf'";
-}
-
-sub packet_bin_write {
-	my $buf = shift;
-	print STDOUT sprintf( "%04x", length($buf) + 4 );
-	print STDOUT $buf;
-	STDOUT->flush();
-}
-
-sub packet_txt_write {
-	packet_bin_write( $_[0] . "\n" );
-}
-
-sub packet_flush {
-	print STDOUT sprintf( "%04x", 0 );
-	STDOUT->flush();
-}
-
-sub packet_initialize {
-	my ($name, $version) = @_;
-
-	packet_compare_lists([0, $name . "-client"], packet_txt_read()) ||
-		die "bad initialize";
-	packet_compare_lists([0, "version=" . $version], packet_txt_read()) ||
-		die "bad version";
-	packet_compare_lists([1, ""], packet_bin_read()) ||
-		die "bad version end";
-
-	packet_txt_write( $name . "-server" );
-	packet_txt_write( "version=" . $version );
-	packet_flush();
-}
-
-sub packet_read_capabilities {
-	my @cap;
-	while (1) {
-		my ( $res, $buf ) = packet_bin_read();
-		if ( $res == -1 ) {
-			die "unexpected EOF when reading capabilities";
-		}
-		return ( $res, @cap ) if ( $res != 0 );
-		$buf = remove_final_lf_or_die($buf);
-		unless ( $buf =~ s/capability=// ) {
-			die "bad capability buf: '$buf'";
-		}
-		push @cap, $buf;
-	}
-}
-
-# Read remote capabilities and check them against capabilities we require
-sub packet_read_and_check_capabilities {
-	my @required_caps = @_;
-	my ($res, @remote_caps) = packet_read_capabilities();
-	my %remote_caps = map { $_ => 1 } @remote_caps;
-	foreach (@required_caps) {
-		unless (exists($remote_caps{$_})) {
-			die "required '$_' capability not available from remote" ;
-		}
-	}
-	return %remote_caps;
-}
-
-# Check our capabilities we want to advertise against the remote ones
-# and then advertise our capabilities
-sub packet_check_and_write_capabilities {
-	my ($remote_caps, @our_caps) = @_;
-	foreach (@our_caps) {
-		unless (exists($remote_caps->{$_})) {
-			die "our capability '$_' is not available from remote"
-		}
-		packet_txt_write( "capability=" . $_ );
-	}
-	packet_flush();
-}
-
-1;
diff --git a/third_party/git/perl/Git/SVN.pm b/third_party/git/perl/Git/SVN.pm
deleted file mode 100644
index d1c352f92b58..000000000000
--- a/third_party/git/perl/Git/SVN.pm
+++ /dev/null
@@ -1,2560 +0,0 @@
-package Git::SVN;
-use strict;
-use warnings;
-use Fcntl qw/:DEFAULT :seek/;
-use constant rev_map_fmt => 'NH*';
-use vars qw/$_no_metadata
-            $_repack $_repack_flags $_use_svm_props $_head
-            $_use_svnsync_props $no_reuse_existing
-	    $_use_log_author $_add_author_from $_localtime/;
-use Carp qw/croak/;
-use File::Path qw/mkpath/;
-use IPC::Open3;
-use Memoize;  # core since 5.8.0, Jul 2002
-use POSIX qw(:signal_h);
-use Time::Local;
-
-use Git qw(
-    command
-    command_oneline
-    command_noisy
-    command_output_pipe
-    command_close_pipe
-    get_tz_offset
-);
-use Git::SVN::Utils qw(
-	fatal
-	can_compress
-	join_paths
-	canonicalize_path
-	canonicalize_url
-	add_path_to_url
-);
-
-my $memo_backend;
-our $_follow_parent  = 1;
-our $_minimize_url   = 'unset';
-our $default_repo_id = 'svn';
-our $default_ref_id  = $ENV{GIT_SVN_ID} || 'git-svn';
-
-my ($_gc_nr, $_gc_period);
-
-# properties that we do not log:
-my %SKIP_PROP;
-BEGIN {
-	%SKIP_PROP = map { $_ => 1 } qw/svn:wc:ra_dav:version-url
-	                                svn:special svn:executable
-	                                svn:entry:committed-rev
-	                                svn:entry:last-author
-	                                svn:entry:uuid
-	                                svn:entry:committed-date/;
-
-	# some options are read globally, but can be overridden locally
-	# per [svn-remote "..."] section.  Command-line options will *NOT*
-	# override options set in an [svn-remote "..."] section
-	no strict 'refs';
-	for my $option (qw/follow_parent no_metadata use_svm_props
-			   use_svnsync_props/) {
-		my $key = $option;
-		$key =~ tr/_//d;
-		my $prop = "-$option";
-		*$option = sub {
-			my ($self) = @_;
-			return $self->{$prop} if exists $self->{$prop};
-			my $k = "svn-remote.$self->{repo_id}.$key";
-			eval { command_oneline(qw/config --get/, $k) };
-			if ($@) {
-				$self->{$prop} = ${"Git::SVN::_$option"};
-			} else {
-				my $v = command_oneline(qw/config --bool/,$k);
-				$self->{$prop} = $v eq 'false' ? 0 : 1;
-			}
-			return $self->{$prop};
-		}
-	}
-}
-
-
-my (%LOCKFILES, %INDEX_FILES);
-END {
-	unlink keys %LOCKFILES if %LOCKFILES;
-	unlink keys %INDEX_FILES if %INDEX_FILES;
-}
-
-sub resolve_local_globs {
-	my ($url, $fetch, $glob_spec) = @_;
-	return unless defined $glob_spec;
-	my $ref = $glob_spec->{ref};
-	my $path = $glob_spec->{path};
-	foreach (command(qw#for-each-ref --format=%(refname) refs/#)) {
-		next unless m#^$ref->{regex}$#;
-		my $p = $1;
-		my $pathname = desanitize_refname($path->full_path($p));
-		my $refname = desanitize_refname($ref->full_path($p));
-		if (my $existing = $fetch->{$pathname}) {
-			if ($existing ne $refname) {
-				die "Refspec conflict:\n",
-				    "existing: $existing\n",
-				    " globbed: $refname\n";
-			}
-			my $u = (::cmt_metadata("$refname"))[0];
-			if (!defined($u)) {
-				warn
-"W: $refname: no associated commit metadata from SVN, skipping\n";
-				next;
-			}
-			$u =~ s!^\Q$url\E(/|$)!! or die
-			  "$refname: '$url' not found in '$u'\n";
-			if ($pathname ne $u) {
-				warn "W: Refspec glob conflict ",
-				     "(ref: $refname):\n",
-				     "expected path: $pathname\n",
-				     "    real path: $u\n",
-				     "Continuing ahead with $u\n";
-				next;
-			}
-		} else {
-			$fetch->{$pathname} = $refname;
-		}
-	}
-}
-
-sub parse_revision_argument {
-	my ($base, $head) = @_;
-	if (!defined $::_revision || $::_revision eq 'BASE:HEAD') {
-		return ($base, $head);
-	}
-	return ($1, $2) if ($::_revision =~ /^(\d+):(\d+)$/);
-	return ($::_revision, $::_revision) if ($::_revision =~ /^\d+$/);
-	return ($head, $head) if ($::_revision eq 'HEAD');
-	return ($base, $1) if ($::_revision =~ /^BASE:(\d+)$/);
-	return ($1, $head) if ($::_revision =~ /^(\d+):HEAD$/);
-	die "revision argument: $::_revision not understood by git-svn\n";
-}
-
-sub fetch_all {
-	my ($repo_id, $remotes) = @_;
-	if (ref $repo_id) {
-		my $gs = $repo_id;
-		$repo_id = undef;
-		$repo_id = $gs->{repo_id};
-	}
-	$remotes ||= read_all_remotes();
-	my $remote = $remotes->{$repo_id} or
-	             die "[svn-remote \"$repo_id\"] unknown\n";
-	my $fetch = $remote->{fetch};
-	my $url = $remote->{url} or die "svn-remote.$repo_id.url not defined\n";
-	my (@gs, @globs);
-	my $ra = Git::SVN::Ra->new($url);
-	my $uuid = $ra->get_uuid;
-	my $head = $ra->get_latest_revnum;
-
-	# ignore errors, $head revision may not even exist anymore
-	eval { $ra->get_log("", $head, 0, 1, 0, 1, sub { $head = $_[1] }) };
-	warn "W: $@\n" if $@;
-
-	my $base = defined $fetch ? $head : 0;
-
-	# read the max revs for wildcard expansion (branches/*, tags/*)
-	foreach my $t (qw/branches tags/) {
-		defined $remote->{$t} or next;
-		push @globs, @{$remote->{$t}};
-
-		my $max_rev = eval { tmp_config(qw/--int --get/,
-		                         "svn-remote.$repo_id.${t}-maxRev") };
-		if (defined $max_rev && ($max_rev < $base)) {
-			$base = $max_rev;
-		} elsif (!defined $max_rev) {
-			$base = 0;
-		}
-	}
-
-	if ($fetch) {
-		foreach my $p (sort keys %$fetch) {
-			my $gs = Git::SVN->new($fetch->{$p}, $repo_id, $p);
-			my $lr = $gs->rev_map_max;
-			if (defined $lr) {
-				$base = $lr if ($lr < $base);
-			}
-			push @gs, $gs;
-		}
-	}
-
-	($base, $head) = parse_revision_argument($base, $head);
-	$ra->gs_fetch_loop_common($base, $head, \@gs, \@globs);
-}
-
-sub read_all_remotes {
-	my $r = {};
-	my $use_svm_props = eval { command_oneline(qw/config --bool
-	    svn.useSvmProps/) };
-	$use_svm_props = $use_svm_props eq 'true' if $use_svm_props;
-	my $svn_refspec = qr{\s*(.*?)\s*:\s*(.+?)\s*};
-	foreach (grep { s/^svn-remote\.// } command(qw/config -l/)) {
-		if (m!^(.+)\.fetch=$svn_refspec$!) {
-			my ($remote, $local_ref, $remote_ref) = ($1, $2, $3);
-			die("svn-remote.$remote: remote ref '$remote_ref' "
-			    . "must start with 'refs/'\n")
-				unless $remote_ref =~ m{^refs/};
-			$local_ref = uri_decode($local_ref);
-			$r->{$remote}->{fetch}->{$local_ref} = $remote_ref;
-			$r->{$remote}->{svm} = {} if $use_svm_props;
-		} elsif (m!^(.+)\.usesvmprops=\s*(.*)\s*$!) {
-			$r->{$1}->{svm} = {};
-		} elsif (m!^(.+)\.url=\s*(.*)\s*$!) {
-			$r->{$1}->{url} = canonicalize_url($2);
-		} elsif (m!^(.+)\.pushurl=\s*(.*)\s*$!) {
-			$r->{$1}->{pushurl} = canonicalize_url($2);
-		} elsif (m!^(.+)\.ignore-refs=\s*(.*)\s*$!) {
-			$r->{$1}->{ignore_refs_regex} = $2;
-		} elsif (m!^(.+)\.(branches|tags)=$svn_refspec$!) {
-			my ($remote, $t, $local_ref, $remote_ref) =
-			                                     ($1, $2, $3, $4);
-			die("svn-remote.$remote: remote ref '$remote_ref' ($t) "
-			    . "must start with 'refs/'\n")
-				unless $remote_ref =~ m{^refs/};
-			$local_ref = uri_decode($local_ref);
-
-			require Git::SVN::GlobSpec;
-			my $rs = {
-			    t => $t,
-			    remote => $remote,
-			    path => Git::SVN::GlobSpec->new($local_ref, 1),
-			    ref => Git::SVN::GlobSpec->new($remote_ref, 0) };
-			if (length($rs->{ref}->{right}) != 0) {
-				die "The '*' glob character must be the last ",
-				    "character of '$remote_ref'\n";
-			}
-			push @{ $r->{$remote}->{$t} }, $rs;
-		}
-	}
-
-	map {
-		if (defined $r->{$_}->{svm}) {
-			my $svm;
-			eval {
-				my $section = "svn-remote.$_";
-				$svm = {
-					source => tmp_config('--get',
-					    "$section.svm-source"),
-					replace => tmp_config('--get',
-					    "$section.svm-replace"),
-				}
-			};
-			$r->{$_}->{svm} = $svm;
-		}
-	} keys %$r;
-
-	foreach my $remote (keys %$r) {
-		foreach ( grep { defined $_ }
-			  map { $r->{$remote}->{$_} } qw(branches tags) ) {
-			foreach my $rs ( @$_ ) {
-				$rs->{ignore_refs_regex} =
-				    $r->{$remote}->{ignore_refs_regex};
-			}
-		}
-	}
-
-	$r;
-}
-
-sub init_vars {
-	$_gc_nr = $_gc_period = 1000;
-	if (defined $_repack || defined $_repack_flags) {
-	       warn "Repack options are obsolete; they have no effect.\n";
-	}
-}
-
-sub verify_remotes_sanity {
-	return unless -d $ENV{GIT_DIR};
-	my %seen;
-	foreach (command(qw/config -l/)) {
-		if (m!^svn-remote\.(?:.+)\.fetch=.*:refs/remotes/(\S+)\s*$!) {
-			if ($seen{$1}) {
-				die "Remote ref refs/remote/$1 is tracked by",
-				    "\n  \"$_\"\nand\n  \"$seen{$1}\"\n",
-				    "Please resolve this ambiguity in ",
-				    "your git configuration file before ",
-				    "continuing\n";
-			}
-			$seen{$1} = $_;
-		}
-	}
-}
-
-sub find_existing_remote {
-	my ($url, $remotes) = @_;
-	return undef if $no_reuse_existing;
-	my $existing;
-	foreach my $repo_id (keys %$remotes) {
-		my $u = $remotes->{$repo_id}->{url} or next;
-		next if $u ne $url;
-		$existing = $repo_id;
-		last;
-	}
-	$existing;
-}
-
-sub init_remote_config {
-	my ($self, $url, $no_write) = @_;
-	$url = canonicalize_url($url);
-	my $r = read_all_remotes();
-	my $existing = find_existing_remote($url, $r);
-	if ($existing) {
-		unless ($no_write) {
-			print STDERR "Using existing ",
-				     "[svn-remote \"$existing\"]\n";
-		}
-		$self->{repo_id} = $existing;
-	} elsif ($_minimize_url) {
-		my $min_url = Git::SVN::Ra->new($url)->minimize_url;
-		$existing = find_existing_remote($min_url, $r);
-		if ($existing) {
-			unless ($no_write) {
-				print STDERR "Using existing ",
-					     "[svn-remote \"$existing\"]\n";
-			}
-			$self->{repo_id} = $existing;
-		}
-		if ($min_url ne $url) {
-			unless ($no_write) {
-				print STDERR "Using higher level of URL: ",
-					     "$url => $min_url\n";
-			}
-			my $old_path = $self->path;
-			$url =~ s!^\Q$min_url\E(/|$)!!;
-			$url = join_paths($url, $old_path);
-			$self->path($url);
-			$url = $min_url;
-		}
-	}
-	my $orig_url;
-	if (!$existing) {
-		# verify that we aren't overwriting anything:
-		$orig_url = eval {
-			command_oneline('config', '--get',
-					"svn-remote.$self->{repo_id}.url")
-		};
-		if ($orig_url && ($orig_url ne $url)) {
-			die "svn-remote.$self->{repo_id}.url already set: ",
-			    "$orig_url\nwanted to set to: $url\n";
-		}
-	}
-	my ($xrepo_id, $xpath) = find_ref($self->refname);
-	if (!$no_write && defined $xpath) {
-		die "svn-remote.$xrepo_id.fetch already set to track ",
-		    "$xpath:", $self->refname, "\n";
-	}
-	unless ($no_write) {
-		command_noisy('config',
-			      "svn-remote.$self->{repo_id}.url", $url);
-		my $path = $self->path;
-		$path =~ s{^/}{};
-		$path =~ s{%([0-9A-F]{2})}{chr hex($1)}ieg;
-		$self->path($path);
-		command_noisy('config', '--add',
-			      "svn-remote.$self->{repo_id}.fetch",
-			      $self->path.":".$self->refname);
-	}
-	$self->url($url);
-}
-
-sub find_by_url { # repos_root and, path are optional
-	my ($class, $full_url, $repos_root, $path) = @_;
-
-	$full_url = canonicalize_url($full_url);
-
-	return undef unless defined $full_url;
-	remove_username($full_url);
-	remove_username($repos_root) if defined $repos_root;
-	my $remotes = read_all_remotes();
-	if (defined $full_url && defined $repos_root && !defined $path) {
-		$path = $full_url;
-		$path =~ s#^\Q$repos_root\E(?:/|$)##;
-	}
-	foreach my $repo_id (keys %$remotes) {
-		my $u = $remotes->{$repo_id}->{url} or next;
-		remove_username($u);
-		next if defined $repos_root && $repos_root ne $u;
-
-		my $fetch = $remotes->{$repo_id}->{fetch} || {};
-		foreach my $t (qw/branches tags/) {
-			foreach my $globspec (@{$remotes->{$repo_id}->{$t}}) {
-				resolve_local_globs($u, $fetch, $globspec);
-			}
-		}
-		my $p = $path;
-		my $rwr = rewrite_root({repo_id => $repo_id});
-		my $svm = $remotes->{$repo_id}->{svm}
-			if defined $remotes->{$repo_id}->{svm};
-		unless (defined $p) {
-			$p = $full_url;
-			my $z = $u;
-			my $prefix = '';
-			if ($rwr) {
-				$z = $rwr;
-				remove_username($z);
-			} elsif (defined $svm) {
-				$z = $svm->{source};
-				$prefix = $svm->{replace};
-				$prefix =~ s#^\Q$u\E(?:/|$)##;
-				$prefix =~ s#/$##;
-			}
-			$p =~ s#^\Q$z\E(?:/|$)#$prefix# or next;
-		}
-
-		# remote fetch paths are not URI escaped.  Decode ours
-		# so they match
-		$p = uri_decode($p);
-
-		foreach my $f (keys %$fetch) {
-			next if $f ne $p;
-			return Git::SVN->new($fetch->{$f}, $repo_id, $f);
-		}
-	}
-	undef;
-}
-
-sub init {
-	my ($class, $url, $path, $repo_id, $ref_id, $no_write) = @_;
-	my $self = _new($class, $repo_id, $ref_id, $path);
-	if (defined $url) {
-		$self->init_remote_config($url, $no_write);
-	}
-	$self;
-}
-
-sub find_ref {
-	my ($ref_id) = @_;
-	foreach (command(qw/config -l/)) {
-		next unless m!^svn-remote\.(.+)\.fetch=
-		              \s*(.*?)\s*:\s*(.+?)\s*$!x;
-		my ($repo_id, $path, $ref) = ($1, $2, $3);
-		if ($ref eq $ref_id) {
-			$path = '' if ($path =~ m#^\./?#);
-			return ($repo_id, $path);
-		}
-	}
-	(undef, undef, undef);
-}
-
-sub new {
-	my ($class, $ref_id, $repo_id, $path) = @_;
-	if (defined $ref_id && !defined $repo_id && !defined $path) {
-		($repo_id, $path) = find_ref($ref_id);
-		if (!defined $repo_id) {
-			die "Could not find a \"svn-remote.*.fetch\" key ",
-			    "in the repository configuration matching: ",
-			    "$ref_id\n";
-		}
-	}
-	my $self = _new($class, $repo_id, $ref_id, $path);
-	if (!defined $self->path || !length $self->path) {
-		my $fetch = command_oneline('config', '--get',
-		                            "svn-remote.$repo_id.fetch",
-		                            ":$ref_id\$") or
-		     die "Failed to read \"svn-remote.$repo_id.fetch\" ",
-		         "\":$ref_id\$\" in config\n";
-		my($path) = split(/\s*:\s*/, $fetch);
-		$self->path($path);
-	}
-	{
-		my $path = $self->path;
-		$path =~ s{\A/}{};
-		$path =~ s{/\z}{};
-		$self->path($path);
-	}
-	my $url = command_oneline('config', '--get',
-	                          "svn-remote.$repo_id.url") or
-                  die "Failed to read \"svn-remote.$repo_id.url\" in config\n";
-	$self->url($url);
-	$self->{pushurl} = eval { command_oneline('config', '--get',
-	                          "svn-remote.$repo_id.pushurl") };
-	$self->rebuild;
-	$self;
-}
-
-sub refname {
-	my ($refname) = $_[0]->{ref_id} ;
-
-	# It cannot end with a slash /, we'll throw up on this because
-	# SVN can't have directories with a slash in their name, either:
-	if ($refname =~ m{/$}) {
-		die "ref: '$refname' ends with a trailing slash; this is ",
-		    "not permitted by git or Subversion\n";
-	}
-
-	# It cannot have ASCII control character space, tilde ~, caret ^,
-	# colon :, question-mark ?, asterisk *, space, or open bracket [
-	# anywhere.
-	#
-	# Additionally, % must be escaped because it is used for escaping
-	# and we want our escaped refname to be reversible
-	$refname =~ s{([ \%~\^:\?\*\[\t\\])}{sprintf('%%%02X',ord($1))}eg;
-
-	# no slash-separated component can begin with a dot .
-	# /.* becomes /%2E*
-	$refname =~ s{/\.}{/%2E}g;
-
-	# It cannot have two consecutive dots .. anywhere
-	# .. becomes %2E%2E
-	$refname =~ s{\.\.}{%2E%2E}g;
-
-	# trailing dots and .lock are not allowed
-	# .$ becomes %2E and .lock becomes %2Elock
-	$refname =~ s{\.(?=$|lock$)}{%2E};
-
-	# the sequence @{ is used to access the reflog
-	# @{ becomes %40{
-	$refname =~ s{\@\{}{%40\{}g;
-
-	return $refname;
-}
-
-sub desanitize_refname {
-	my ($refname) = @_;
-	$refname =~ s{%(?:([0-9A-F]{2}))}{chr hex($1)}eg;
-	return $refname;
-}
-
-sub svm_uuid {
-	my ($self) = @_;
-	return $self->{svm}->{uuid} if $self->svm;
-	$self->ra;
-	unless ($self->{svm}) {
-		die "SVM UUID not cached, and reading remotely failed\n";
-	}
-	$self->{svm}->{uuid};
-}
-
-sub svm {
-	my ($self) = @_;
-	return $self->{svm} if $self->{svm};
-	my $svm;
-	# see if we have it in our config, first:
-	eval {
-		my $section = "svn-remote.$self->{repo_id}";
-		$svm = {
-		  source => tmp_config('--get', "$section.svm-source"),
-		  uuid => tmp_config('--get', "$section.svm-uuid"),
-		  replace => tmp_config('--get', "$section.svm-replace"),
-		}
-	};
-	if ($svm && $svm->{source} && $svm->{uuid} && $svm->{replace}) {
-		$self->{svm} = $svm;
-	}
-	$self->{svm};
-}
-
-sub _set_svm_vars {
-	my ($self, $ra) = @_;
-	return $ra if $self->svm;
-
-	my @err = ( "useSvmProps set, but failed to read SVM properties\n",
-		    "(svm:source, svm:uuid) ",
-		    "from the following URLs:\n" );
-	sub read_svm_props {
-		my ($self, $ra, $path, $r) = @_;
-		my $props = ($ra->get_dir($path, $r))[2];
-		my $src = $props->{'svm:source'};
-		my $uuid = $props->{'svm:uuid'};
-		return undef if (!$src || !$uuid);
-
-		chomp($src, $uuid);
-
-		$uuid =~ m{^[0-9a-f\-]{30,}$}i
-		    or die "doesn't look right - svm:uuid is '$uuid'\n";
-
-		# the '!' is used to mark the repos_root!/relative/path
-		$src =~ s{/?!/?}{/};
-		$src =~ s{/+$}{}; # no trailing slashes please
-		# username is of no interest
-		$src =~ s{(^[a-z\+]*://)[^/@]*@}{$1};
-
-		my $replace = add_path_to_url($ra->url, $path);
-
-		my $section = "svn-remote.$self->{repo_id}";
-		tmp_config("$section.svm-source", $src);
-		tmp_config("$section.svm-replace", $replace);
-		tmp_config("$section.svm-uuid", $uuid);
-		$self->{svm} = {
-			source => $src,
-			uuid => $uuid,
-			replace => $replace
-		};
-	}
-
-	my $r = $ra->get_latest_revnum;
-	my $path = $self->path;
-	my %tried;
-	while (length $path) {
-		my $try = add_path_to_url($self->url, $path);
-		unless ($tried{$try}) {
-			return $ra if $self->read_svm_props($ra, $path, $r);
-			$tried{$try} = 1;
-		}
-		$path =~ s#/?[^/]+$##;
-	}
-	die "Path: '$path' should be ''\n" if $path ne '';
-	return $ra if $self->read_svm_props($ra, $path, $r);
-	$tried{ add_path_to_url($self->url, $path) } = 1;
-
-	if ($ra->{repos_root} eq $self->url) {
-		die @err, (map { "  $_\n" } keys %tried), "\n";
-	}
-
-	# nope, make sure we're connected to the repository root:
-	my $ok;
-	my @tried_b;
-	$path = $ra->{svn_path};
-	$ra = Git::SVN::Ra->new($ra->{repos_root});
-	while (length $path) {
-		my $try = add_path_to_url($ra->url, $path);
-		unless ($tried{$try}) {
-			$ok = $self->read_svm_props($ra, $path, $r);
-			last if $ok;
-			$tried{$try} = 1;
-		}
-		$path =~ s#/?[^/]+$##;
-	}
-	die "Path: '$path' should be ''\n" if $path ne '';
-	$ok ||= $self->read_svm_props($ra, $path, $r);
-	$tried{ add_path_to_url($ra->url, $path) } = 1;
-	if (!$ok) {
-		die @err, (map { "  $_\n" } keys %tried), "\n";
-	}
-	Git::SVN::Ra->new($self->url);
-}
-
-sub svnsync {
-	my ($self) = @_;
-	return $self->{svnsync} if $self->{svnsync};
-
-	if ($self->no_metadata) {
-		die "Can't have both 'noMetadata' and ",
-		    "'useSvnsyncProps' options set!\n";
-	}
-	if ($self->rewrite_root) {
-		die "Can't have both 'useSvnsyncProps' and 'rewriteRoot' ",
-		    "options set!\n";
-	}
-	if ($self->rewrite_uuid) {
-		die "Can't have both 'useSvnsyncProps' and 'rewriteUUID' ",
-		    "options set!\n";
-	}
-
-	my $svnsync;
-	# see if we have it in our config, first:
-	eval {
-		my $section = "svn-remote.$self->{repo_id}";
-
-		my $url = tmp_config('--get', "$section.svnsync-url");
-		($url) = ($url =~ m{^([a-z\+]+://\S+)$}) or
-		   die "doesn't look right - svn:sync-from-url is '$url'\n";
-
-		my $uuid = tmp_config('--get', "$section.svnsync-uuid");
-		($uuid) = ($uuid =~ m{^([0-9a-f\-]{30,})$}i) or
-		   die "doesn't look right - svn:sync-from-uuid is '$uuid'\n";
-
-		$svnsync = { url => $url, uuid => $uuid }
-	};
-	if ($svnsync && $svnsync->{url} && $svnsync->{uuid}) {
-		return $self->{svnsync} = $svnsync;
-	}
-
-	my $err = "useSvnsyncProps set, but failed to read " .
-	          "svnsync property: svn:sync-from-";
-	my $rp = $self->ra->rev_proplist(0);
-
-	my $url = $rp->{'svn:sync-from-url'} or die $err . "url\n";
-	($url) = ($url =~ m{^([a-z\+]+://\S+)$}) or
-	           die "doesn't look right - svn:sync-from-url is '$url'\n";
-
-	my $uuid = $rp->{'svn:sync-from-uuid'} or die $err . "uuid\n";
-	($uuid) = ($uuid =~ m{^([0-9a-f\-]{30,})$}i) or
-	           die "doesn't look right - svn:sync-from-uuid is '$uuid'\n";
-
-	my $section = "svn-remote.$self->{repo_id}";
-	tmp_config('--add', "$section.svnsync-uuid", $uuid);
-	tmp_config('--add', "$section.svnsync-url", $url);
-	return $self->{svnsync} = { url => $url, uuid => $uuid };
-}
-
-# this allows us to memoize our SVN::Ra UUID locally and avoid a
-# remote lookup (useful for 'git svn log').
-sub ra_uuid {
-	my ($self) = @_;
-	unless ($self->{ra_uuid}) {
-		my $key = "svn-remote.$self->{repo_id}.uuid";
-		my $uuid = eval { tmp_config('--get', $key) };
-		if (!$@ && $uuid && $uuid =~ /^([a-f\d\-]{30,})$/i) {
-			$self->{ra_uuid} = $uuid;
-		} else {
-			die "ra_uuid called without URL\n" unless $self->url;
-			$self->{ra_uuid} = $self->ra->get_uuid;
-			tmp_config('--add', $key, $self->{ra_uuid});
-		}
-	}
-	$self->{ra_uuid};
-}
-
-sub _set_repos_root {
-	my ($self, $repos_root) = @_;
-	my $k = "svn-remote.$self->{repo_id}.reposRoot";
-	$repos_root ||= $self->ra->{repos_root};
-	tmp_config($k, $repos_root);
-	$repos_root;
-}
-
-sub repos_root {
-	my ($self) = @_;
-	my $k = "svn-remote.$self->{repo_id}.reposRoot";
-	eval { tmp_config('--get', $k) } || $self->_set_repos_root;
-}
-
-sub ra {
-	my ($self) = shift;
-	my $ra = Git::SVN::Ra->new($self->url);
-	$self->_set_repos_root($ra->{repos_root});
-	if ($self->use_svm_props && !$self->{svm}) {
-		if ($self->no_metadata) {
-			die "Can't have both 'noMetadata' and ",
-			    "'useSvmProps' options set!\n";
-		} elsif ($self->use_svnsync_props) {
-			die "Can't have both 'useSvnsyncProps' and ",
-			    "'useSvmProps' options set!\n";
-		}
-		$ra = $self->_set_svm_vars($ra);
-		$self->{-want_revprops} = 1;
-	}
-	$ra;
-}
-
-# prop_walk(PATH, REV, SUB)
-# -------------------------
-# Recursively traverse PATH at revision REV and invoke SUB for each
-# directory that contains a SVN property.  SUB will be invoked as
-# follows:  &SUB(gs, path, props);  where `gs' is this instance of
-# Git::SVN, `path' the path to the directory where the properties
-# `props' were found.  The `path' will be relative to point of checkout,
-# that is, if url://repo/trunk is the current Git branch, and that
-# directory contains a sub-directory `d', SUB will be invoked with `/d/'
-# as `path' (note the trailing `/').
-sub prop_walk {
-	my ($self, $path, $rev, $sub) = @_;
-
-	$path =~ s#^/##;
-	my ($dirent, undef, $props) = $self->ra->get_dir($path, $rev);
-	$path =~ s#^/*#/#g;
-	my $p = $path;
-	# Strip the irrelevant part of the path.
-	$p =~ s#^/+\Q@{[$self->path]}\E(/|$)#/#;
-	# Ensure the path is terminated by a `/'.
-	$p =~ s#/*$#/#;
-
-	# The properties contain all the internal SVN stuff nobody
-	# (usually) cares about.
-	my $interesting_props = 0;
-	foreach (keys %{$props}) {
-		# If it doesn't start with `svn:', it must be a
-		# user-defined property.
-		++$interesting_props and next if $_ !~ /^svn:/;
-		# FIXME: Fragile, if SVN adds new public properties,
-		# this needs to be updated.
-		++$interesting_props if /^svn:(?:ignore|keywords|executable
-		                                 |eol-style|mime-type
-						 |externals|needs-lock)$/x;
-	}
-	&$sub($self, $p, $props) if $interesting_props;
-
-	foreach (sort keys %$dirent) {
-		next if $dirent->{$_}->{kind} != $SVN::Node::dir;
-		$self->prop_walk($self->path . $p . $_, $rev, $sub);
-	}
-}
-
-sub last_rev { ($_[0]->last_rev_commit)[0] }
-sub last_commit { ($_[0]->last_rev_commit)[1] }
-
-# returns the newest SVN revision number and newest commit SHA1
-sub last_rev_commit {
-	my ($self) = @_;
-	if (defined $self->{last_rev} && defined $self->{last_commit}) {
-		return ($self->{last_rev}, $self->{last_commit});
-	}
-	my $c = ::verify_ref($self->refname.'^0');
-	if ($c && !$self->use_svm_props && !$self->no_metadata) {
-		my $rev = (::cmt_metadata($c))[1];
-		if (defined $rev) {
-			($self->{last_rev}, $self->{last_commit}) = ($rev, $c);
-			return ($rev, $c);
-		}
-	}
-	my $map_path = $self->map_path;
-	unless (-e $map_path) {
-		($self->{last_rev}, $self->{last_commit}) = (undef, undef);
-		return (undef, undef);
-	}
-	my ($rev, $commit) = $self->rev_map_max(1);
-	($self->{last_rev}, $self->{last_commit}) = ($rev, $commit);
-	return ($rev, $commit);
-}
-
-sub get_fetch_range {
-	my ($self, $min, $max) = @_;
-	$max ||= $self->ra->get_latest_revnum;
-	$min ||= $self->rev_map_max;
-	(++$min, $max);
-}
-
-sub svn_dir {
-	command_oneline(qw(rev-parse --git-path svn));
-}
-
-sub tmp_config {
-	my (@args) = @_;
-	my $svn_dir = svn_dir();
-	my $old_def_config = "$svn_dir/config";
-	my $config = "$svn_dir/.metadata";
-	if (! -f $config && -f $old_def_config) {
-		rename $old_def_config, $config or
-		       die "Failed rename $old_def_config => $config: $!\n";
-	}
-	my $old_config = $ENV{GIT_CONFIG};
-	$ENV{GIT_CONFIG} = $config;
-	$@ = undef;
-	my @ret = eval {
-		unless (-f $config) {
-			mkfile($config);
-			open my $fh, '>', $config or
-			    die "Can't open $config: $!\n";
-			print $fh "; This file is used internally by ",
-			          "git-svn\n" or die
-				  "Couldn't write to $config: $!\n";
-			print $fh "; You should not have to edit it\n" or
-			      die "Couldn't write to $config: $!\n";
-			close $fh or die "Couldn't close $config: $!\n";
-		}
-		command('config', @args);
-	};
-	my $err = $@;
-	if (defined $old_config) {
-		$ENV{GIT_CONFIG} = $old_config;
-	} else {
-		delete $ENV{GIT_CONFIG};
-	}
-	die $err if $err;
-	wantarray ? @ret : $ret[0];
-}
-
-sub tmp_index_do {
-	my ($self, $sub) = @_;
-	my $old_index = $ENV{GIT_INDEX_FILE};
-	$ENV{GIT_INDEX_FILE} = $self->{index};
-	$@ = undef;
-	my @ret = eval {
-		my ($dir, $base) = ($self->{index} =~ m#^(.*?)/?([^/]+)$#);
-		mkpath([$dir]) unless -d $dir;
-		&$sub;
-	};
-	my $err = $@;
-	if (defined $old_index) {
-		$ENV{GIT_INDEX_FILE} = $old_index;
-	} else {
-		delete $ENV{GIT_INDEX_FILE};
-	}
-	die $err if $err;
-	wantarray ? @ret : $ret[0];
-}
-
-sub assert_index_clean {
-	my ($self, $treeish) = @_;
-
-	$self->tmp_index_do(sub {
-		command_noisy('read-tree', $treeish) unless -e $self->{index};
-		my $x = command_oneline('write-tree');
-		my ($y) = (command(qw/cat-file commit/, $treeish) =~
-		           /^tree ($::oid)/mo);
-		return if $y eq $x;
-
-		warn "Index mismatch: $y != $x\nrereading $treeish\n";
-		unlink $self->{index} or die "unlink $self->{index}: $!\n";
-		command_noisy('read-tree', $treeish);
-		$x = command_oneline('write-tree');
-		if ($y ne $x) {
-			fatal "trees ($treeish) $y != $x\n",
-			      "Something is seriously wrong...";
-		}
-	});
-}
-
-sub get_commit_parents {
-	my ($self, $log_entry) = @_;
-	my (%seen, @ret, @tmp);
-	# legacy support for 'set-tree'; this is only used by set_tree_cb:
-	if (my $ip = $self->{inject_parents}) {
-		if (my $commit = delete $ip->{$log_entry->{revision}}) {
-			push @tmp, $commit;
-		}
-	}
-	if (my $cur = ::verify_ref($self->refname.'^0')) {
-		push @tmp, $cur;
-	}
-	if (my $ipd = $self->{inject_parents_dcommit}) {
-		if (my $commit = delete $ipd->{$log_entry->{revision}}) {
-			push @tmp, @$commit;
-		}
-	}
-	push @tmp, $_ foreach (@{$log_entry->{parents}}, @tmp);
-	while (my $p = shift @tmp) {
-		next if $seen{$p};
-		$seen{$p} = 1;
-		push @ret, $p;
-	}
-	@ret;
-}
-
-sub rewrite_root {
-	my ($self) = @_;
-	return $self->{-rewrite_root} if exists $self->{-rewrite_root};
-	my $k = "svn-remote.$self->{repo_id}.rewriteRoot";
-	my $rwr = eval { command_oneline(qw/config --get/, $k) };
-	if ($rwr) {
-		$rwr =~ s#/+$##;
-		if ($rwr !~ m#^[a-z\+]+://#) {
-			die "$rwr is not a valid URL (key: $k)\n";
-		}
-	}
-	$self->{-rewrite_root} = $rwr;
-}
-
-sub rewrite_uuid {
-	my ($self) = @_;
-	return $self->{-rewrite_uuid} if exists $self->{-rewrite_uuid};
-	my $k = "svn-remote.$self->{repo_id}.rewriteUUID";
-	my $rwid = eval { command_oneline(qw/config --get/, $k) };
-	if ($rwid) {
-		$rwid =~ s#/+$##;
-		if ($rwid !~ m#^[a-f0-9]{8}-(?:[a-f0-9]{4}-){3}[a-f0-9]{12}$#) {
-			die "$rwid is not a valid UUID (key: $k)\n";
-		}
-	}
-	$self->{-rewrite_uuid} = $rwid;
-}
-
-sub metadata_url {
-	my ($self) = @_;
-	my $url = $self->rewrite_root || $self->url;
-	return canonicalize_url( add_path_to_url( $url, $self->path ) );
-}
-
-sub full_url {
-	my ($self) = @_;
-	return canonicalize_url( add_path_to_url( $self->url, $self->path ) );
-}
-
-sub full_pushurl {
-	my ($self) = @_;
-	if ($self->{pushurl}) {
-		return canonicalize_url( add_path_to_url( $self->{pushurl}, $self->path ) );
-	} else {
-		return $self->full_url;
-	}
-}
-
-sub set_commit_header_env {
-	my ($log_entry) = @_;
-	my %env;
-	foreach my $ned (qw/NAME EMAIL DATE/) {
-		foreach my $ac (qw/AUTHOR COMMITTER/) {
-			$env{"GIT_${ac}_${ned}"} = $ENV{"GIT_${ac}_${ned}"};
-		}
-	}
-
-	$ENV{GIT_AUTHOR_NAME} = $log_entry->{name};
-	$ENV{GIT_AUTHOR_EMAIL} = $log_entry->{email};
-	$ENV{GIT_AUTHOR_DATE} = $ENV{GIT_COMMITTER_DATE} = $log_entry->{date};
-
-	$ENV{GIT_COMMITTER_NAME} = (defined $log_entry->{commit_name})
-						? $log_entry->{commit_name}
-						: $log_entry->{name};
-	$ENV{GIT_COMMITTER_EMAIL} = (defined $log_entry->{commit_email})
-						? $log_entry->{commit_email}
-						: $log_entry->{email};
-	\%env;
-}
-
-sub restore_commit_header_env {
-	my ($env) = @_;
-	foreach my $ned (qw/NAME EMAIL DATE/) {
-		foreach my $ac (qw/AUTHOR COMMITTER/) {
-			my $k = "GIT_${ac}_${ned}";
-			if (defined $env->{$k}) {
-				$ENV{$k} = $env->{$k};
-			} else {
-				delete $ENV{$k};
-			}
-		}
-	}
-}
-
-sub gc {
-	command_noisy('gc', '--auto');
-};
-
-sub do_git_commit {
-	my ($self, $log_entry) = @_;
-	my $lr = $self->last_rev;
-	if (defined $lr && $lr >= $log_entry->{revision}) {
-		die "Last fetched revision of ", $self->refname,
-		    " was r$lr, but we are about to fetch: ",
-		    "r$log_entry->{revision}!\n";
-	}
-	if (my $c = $self->rev_map_get($log_entry->{revision})) {
-		croak "$log_entry->{revision} = $c already exists! ",
-		      "Why are we refetching it?\n";
-	}
-	my $old_env = set_commit_header_env($log_entry);
-	my $tree = $log_entry->{tree};
-	if (!defined $tree) {
-		$tree = $self->tmp_index_do(sub {
-		                            command_oneline('write-tree') });
-	}
-	die "Tree is not a valid oid $tree\n" if $tree !~ /^$::oid$/o;
-
-	my @exec = ('git', 'commit-tree', $tree);
-	foreach ($self->get_commit_parents($log_entry)) {
-		push @exec, '-p', $_;
-	}
-	defined(my $pid = open3(my $msg_fh, my $out_fh, '>&STDERR', @exec))
-	                                                           or croak $!;
-	binmode $msg_fh;
-
-	# we always get UTF-8 from SVN, but we may want our commits in
-	# a different encoding.
-	if (my $enc = Git::config('i18n.commitencoding')) {
-		require Encode;
-		Encode::from_to($log_entry->{log}, 'UTF-8', $enc);
-	}
-	print $msg_fh $log_entry->{log} or croak $!;
-	restore_commit_header_env($old_env);
-	unless ($self->no_metadata) {
-		print $msg_fh "\ngit-svn-id: $log_entry->{metadata}\n"
-		              or croak $!;
-	}
-	$msg_fh->flush == 0 or croak $!;
-	close $msg_fh or croak $!;
-	chomp(my $commit = do { local $/; <$out_fh> });
-	close $out_fh or croak $!;
-	waitpid $pid, 0;
-	croak $? if $?;
-	if ($commit !~ /^$::oid$/o) {
-		die "Failed to commit, invalid oid: $commit\n";
-	}
-
-	$self->rev_map_set($log_entry->{revision}, $commit, 1);
-
-	$self->{last_rev} = $log_entry->{revision};
-	$self->{last_commit} = $commit;
-	print "r$log_entry->{revision}" unless $::_q > 1;
-	if (defined $log_entry->{svm_revision}) {
-		 print " (\@$log_entry->{svm_revision})" unless $::_q > 1;
-		 $self->rev_map_set($log_entry->{svm_revision}, $commit,
-		                   0, $self->svm_uuid);
-	}
-	print " = $commit ($self->{ref_id})\n" unless $::_q > 1;
-	if (--$_gc_nr == 0) {
-		$_gc_nr = $_gc_period;
-		gc();
-	}
-	return $commit;
-}
-
-sub match_paths {
-	my ($self, $paths, $r) = @_;
-	return 1 if $self->path eq '';
-	if (my $path = $paths->{"/".$self->path}) {
-		return ($path->{action} eq 'D') ? 0 : 1;
-	}
-	$self->{path_regex} ||= qr{^/\Q@{[$self->path]}\E/};
-	if (grep /$self->{path_regex}/, keys %$paths) {
-		return 1;
-	}
-	my $c = '';
-	foreach (split m#/#, $self->path) {
-		$c .= "/$_";
-		next unless ($paths->{$c} &&
-		             ($paths->{$c}->{action} =~ /^[AR]$/));
-		if ($self->ra->check_path($self->path, $r) ==
-		    $SVN::Node::dir) {
-			return 1;
-		}
-	}
-	return 0;
-}
-
-sub find_parent_branch {
-	my ($self, $paths, $rev) = @_;
-	return undef unless $self->follow_parent;
-	unless (defined $paths) {
-		my $err_handler = $SVN::Error::handler;
-		$SVN::Error::handler = \&Git::SVN::Ra::skip_unknown_revs;
-		$self->ra->get_log([$self->path], $rev, $rev, 0, 1, 1,
-				   sub { $paths = $_[0] });
-		$SVN::Error::handler = $err_handler;
-	}
-	return undef unless defined $paths;
-
-	# look for a parent from another branch:
-	my @b_path_components = split m#/#, $self->path;
-	my @a_path_components;
-	my $i;
-	while (@b_path_components) {
-		$i = $paths->{'/'.join('/', @b_path_components)};
-		last if $i && defined $i->{copyfrom_path};
-		unshift(@a_path_components, pop(@b_path_components));
-	}
-	return undef unless defined $i && defined $i->{copyfrom_path};
-	my $branch_from = $i->{copyfrom_path};
-	if (@a_path_components) {
-		print STDERR "branch_from: $branch_from => ";
-		$branch_from .= '/'.join('/', @a_path_components);
-		print STDERR $branch_from, "\n";
-	}
-	my $r = $i->{copyfrom_rev};
-	my $repos_root = $self->ra->{repos_root};
-	my $url = $self->ra->url;
-	my $new_url = canonicalize_url( add_path_to_url( $url, $branch_from ) );
-	print STDERR  "Found possible branch point: ",
-	              "$new_url => ", $self->full_url, ", $r\n"
-	              unless $::_q > 1;
-	$branch_from =~ s#^/##;
-	my $gs = $self->other_gs($new_url, $url,
-		                 $branch_from, $r, $self->{ref_id});
-	my ($r0, $parent) = $gs->find_rev_before($r, 1);
-	{
-		my ($base, $head);
-		if (!defined $r0 || !defined $parent) {
-			($base, $head) = parse_revision_argument(0, $r);
-		} else {
-			if ($r0 < $r) {
-				$gs->ra->get_log([$gs->path], $r0 + 1, $r, 1,
-					0, 1, sub { $base = $_[1] - 1 });
-			}
-		}
-		if (defined $base && $base <= $r) {
-			$gs->fetch($base, $r);
-		}
-		($r0, $parent) = $gs->find_rev_before($r, 1);
-	}
-	if (defined $r0 && defined $parent) {
-		print STDERR "Found branch parent: ($self->{ref_id}) $parent\n"
-		             unless $::_q > 1;
-		my $ed;
-		if ($self->ra->can_do_switch) {
-			$self->assert_index_clean($parent);
-			print STDERR "Following parent with do_switch\n"
-			             unless $::_q > 1;
-			# do_switch works with svn/trunk >= r22312, but that
-			# is not included with SVN 1.4.3 (the latest version
-			# at the moment), so we can't rely on it
-			$self->{last_rev} = $r0;
-			$self->{last_commit} = $parent;
-			$ed = Git::SVN::Fetcher->new($self, $gs->path);
-			$gs->ra->gs_do_switch($r0, $rev, $gs,
-					      $self->full_url, $ed)
-			  or die "SVN connection failed somewhere...\n";
-		} elsif ($self->ra->trees_match($new_url, $r0,
-			                        $self->full_url, $rev)) {
-			print STDERR "Trees match:\n",
-			             "  $new_url\@$r0\n",
-			             "  ${\$self->full_url}\@$rev\n",
-			             "Following parent with no changes\n"
-			             unless $::_q > 1;
-			$self->tmp_index_do(sub {
-			    command_noisy('read-tree', $parent);
-			});
-			$self->{last_commit} = $parent;
-		} else {
-			print STDERR "Following parent with do_update\n"
-			             unless $::_q > 1;
-			$ed = Git::SVN::Fetcher->new($self);
-			$self->ra->gs_do_update($rev, $rev, $self, $ed)
-			  or die "SVN connection failed somewhere...\n";
-		}
-		print STDERR "Successfully followed parent\n" unless $::_q > 1;
-		return $self->make_log_entry($rev, [$parent], $ed, $r0, $branch_from);
-	}
-	return undef;
-}
-
-sub do_fetch {
-	my ($self, $paths, $rev) = @_;
-	my $ed;
-	my ($last_rev, @parents);
-	if (my $lc = $self->last_commit) {
-		# we can have a branch that was deleted, then re-added
-		# under the same name but copied from another path, in
-		# which case we'll have multiple parents (we don't
-		# want to break the original ref or lose copypath info):
-		if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
-			push @{$log_entry->{parents}}, $lc;
-			return $log_entry;
-		}
-		$ed = Git::SVN::Fetcher->new($self);
-		$last_rev = $self->{last_rev};
-		$ed->{c} = $lc;
-		@parents = ($lc);
-	} else {
-		$last_rev = $rev;
-		if (my $log_entry = $self->find_parent_branch($paths, $rev)) {
-			return $log_entry;
-		}
-		$ed = Git::SVN::Fetcher->new($self);
-	}
-	unless ($self->ra->gs_do_update($last_rev, $rev, $self, $ed)) {
-		die "SVN connection failed somewhere...\n";
-	}
-	$self->make_log_entry($rev, \@parents, $ed, $last_rev, $self->path);
-}
-
-sub mkemptydirs {
-	my ($self, $r) = @_;
-
-	# add/remove/collect a paths table
-	#
-	# Paths are split into a tree of nodes, stored as a hash of hashes.
-	#
-	# Each node contains a 'path' entry for the path (if any) associated
-	# with that node and a 'children' entry for any nodes under that
-	# location.
-	#
-	# Removing a path requires a hash lookup for each component then
-	# dropping that node (and anything under it), which is substantially
-	# faster than a grep slice into a single hash of paths for large
-	# numbers of paths.
-	#
-	# For a large (200K) number of empty_dir directives this reduces
-	# scanning time to 3 seconds vs 10 minutes for grep+delete on a single
-	# hash of paths.
-	sub add_path {
-		my ($paths_table, $path) = @_;
-		my $node_ref;
-
-		foreach my $x (split('/', $path)) {
-			if (!exists($paths_table->{$x})) {
-				$paths_table->{$x} = { children => {} };
-			}
-
-			$node_ref = $paths_table->{$x};
-			$paths_table = $paths_table->{$x}->{children};
-		}
-
-		$node_ref->{path} = $path;
-	}
-
-	sub remove_path {
-		my ($paths_table, $path) = @_;
-		my $nodes_ref;
-		my $node_name;
-
-		foreach my $x (split('/', $path)) {
-			if (!exists($paths_table->{$x})) {
-				return;
-			}
-
-			$nodes_ref = $paths_table;
-			$node_name = $x;
-
-			$paths_table = $paths_table->{$x}->{children};
-		}
-
-		delete($nodes_ref->{$node_name});
-	}
-
-	sub collect_paths {
-		my ($paths_table, $paths_ref) = @_;
-
-		foreach my $v (values %$paths_table) {
-			my $p = $v->{path};
-			my $c = $v->{children};
-
-			collect_paths($c, $paths_ref);
-
-			if (defined($p)) {
-				push(@$paths_ref, $p);
-			}
-		}
-	}
-
-	sub scan {
-		my ($r, $paths_table, $line) = @_;
-		if (defined $r && $line =~ /^r(\d+)$/) {
-			return 0 if $1 > $r;
-		} elsif ($line =~ /^  \+empty_dir: (.+)$/) {
-			add_path($paths_table, $1);
-		} elsif ($line =~ /^  \-empty_dir: (.+)$/) {
-			remove_path($paths_table, $1);
-		}
-		1; # continue
-	};
-
-	my @empty_dirs;
-	my %paths_table;
-
-	my $gz_file = "$self->{dir}/unhandled.log.gz";
-	if (-f $gz_file) {
-		if (!can_compress()) {
-			warn "Compress::Zlib could not be found; ",
-			     "empty directories in $gz_file will not be read\n";
-		} else {
-			my $gz = Compress::Zlib::gzopen($gz_file, "rb") or
-				die "Unable to open $gz_file: $!\n";
-			my $line;
-			while ($gz->gzreadline($line) > 0) {
-				scan($r, \%paths_table, $line) or last;
-			}
-			$gz->gzclose;
-		}
-	}
-
-	if (open my $fh, '<', "$self->{dir}/unhandled.log") {
-		binmode $fh or croak "binmode: $!";
-		while (<$fh>) {
-			scan($r, \%paths_table, $_) or last;
-		}
-		close $fh;
-	}
-
-	collect_paths(\%paths_table, \@empty_dirs);
-	my $strip = qr/\A\Q@{[$self->path]}\E(?:\/|$)/;
-	foreach my $d (sort @empty_dirs) {
-		$d = uri_decode($d);
-		$d =~ s/$strip//;
-		next unless length($d);
-		next if -d $d;
-		if (-e $d) {
-			warn "$d exists but is not a directory\n";
-		} else {
-			print "creating empty directory: $d\n";
-			mkpath([$d]);
-		}
-	}
-}
-
-sub get_untracked {
-	my ($self, $ed) = @_;
-	my @out;
-	my $h = $ed->{empty};
-	foreach (sort keys %$h) {
-		my $act = $h->{$_} ? '+empty_dir' : '-empty_dir';
-		push @out, "  $act: " . uri_encode($_);
-		warn "W: $act: $_\n";
-	}
-	foreach my $t (qw/dir_prop file_prop/) {
-		$h = $ed->{$t} or next;
-		foreach my $path (sort keys %$h) {
-			my $ppath = $path eq '' ? '.' : $path;
-			foreach my $prop (sort keys %{$h->{$path}}) {
-				next if $SKIP_PROP{$prop};
-				my $v = $h->{$path}->{$prop};
-				my $t_ppath_prop = "$t: " .
-				                    uri_encode($ppath) . ' ' .
-				                    uri_encode($prop);
-				if (defined $v) {
-					push @out, "  +$t_ppath_prop " .
-					           uri_encode($v);
-				} else {
-					push @out, "  -$t_ppath_prop";
-				}
-			}
-		}
-	}
-	foreach my $t (qw/absent_file absent_directory/) {
-		$h = $ed->{$t} or next;
-		foreach my $parent (sort keys %$h) {
-			foreach my $path (sort @{$h->{$parent}}) {
-				push @out, "  $t: " .
-				           uri_encode("$parent/$path");
-				warn "W: $t: $parent/$path ",
-				     "Insufficient permissions?\n";
-			}
-		}
-	}
-	\@out;
-}
-
-# parse_svn_date(DATE)
-# --------------------
-# Given a date (in UTC) from Subversion, return a string in the format
-# "<TZ Offset> <local date/time>" that Git will use.
-#
-# By default the parsed date will be in UTC; if $Git::SVN::_localtime
-# is true we'll convert it to the local timezone instead.
-sub parse_svn_date {
-	my $date = shift || return '+0000 1970-01-01 00:00:00';
-	my ($Y,$m,$d,$H,$M,$S) = ($date =~ /^(\d{4})\-(\d\d)\-(\d\d)T
-	                                    (\d\d?)\:(\d\d)\:(\d\d)\.\d*Z$/x) or
-	                                 croak "Unable to parse date: $date\n";
-	my $parsed_date;    # Set next.
-
-	if ($Git::SVN::_localtime) {
-		# Translate the Subversion datetime to an epoch time.
-		# Begin by switching ourselves to $date's timezone, UTC.
-		my $old_env_TZ = $ENV{TZ};
-		$ENV{TZ} = 'UTC';
-
-		my $epoch_in_UTC =
-		    Time::Local::timelocal($S, $M, $H, $d, $m - 1, $Y);
-
-		# Determine our local timezone (including DST) at the
-		# time of $epoch_in_UTC.  $Git::SVN::Log::TZ stored the
-		# value of TZ, if any, at the time we were run.
-		if (defined $Git::SVN::Log::TZ) {
-			$ENV{TZ} = $Git::SVN::Log::TZ;
-		} else {
-			delete $ENV{TZ};
-		}
-
-		my $our_TZ = get_tz_offset($epoch_in_UTC);
-
-		# This converts $epoch_in_UTC into our local timezone.
-		my ($sec, $min, $hour, $mday, $mon, $year,
-		    $wday, $yday, $isdst) = localtime($epoch_in_UTC);
-
-		$parsed_date = sprintf('%s %04d-%02d-%02d %02d:%02d:%02d',
-				       $our_TZ, $year + 1900, $mon + 1,
-				       $mday, $hour, $min, $sec);
-
-		# Reset us to the timezone in effect when we entered
-		# this routine.
-		if (defined $old_env_TZ) {
-			$ENV{TZ} = $old_env_TZ;
-		} else {
-			delete $ENV{TZ};
-		}
-	} else {
-		$parsed_date = "+0000 $Y-$m-$d $H:$M:$S";
-	}
-
-	return $parsed_date;
-}
-
-sub other_gs {
-	my ($self, $new_url, $url,
-	    $branch_from, $r, $old_ref_id) = @_;
-	my $gs = Git::SVN->find_by_url($new_url, $url, $branch_from);
-	unless ($gs) {
-		my $ref_id = $old_ref_id;
-		$ref_id =~ s/\@\d+-*$//;
-		$ref_id .= "\@$r";
-		# just grow a tail if we're not unique enough :x
-		$ref_id .= '-' while find_ref($ref_id);
-		my ($u, $p, $repo_id) = ($new_url, '', $ref_id);
-		if ($u =~ s#^\Q$url\E(/|$)##) {
-			$p = $u;
-			$u = $url;
-			$repo_id = $self->{repo_id};
-		}
-		while (1) {
-			# It is possible to tag two different subdirectories at
-			# the same revision.  If the url for an existing ref
-			# does not match, we must either find a ref with a
-			# matching url or create a new ref by growing a tail.
-			$gs = Git::SVN->init($u, $p, $repo_id, $ref_id, 1);
-			my (undef, $max_commit) = $gs->rev_map_max(1);
-			last if (!$max_commit);
-			my ($url) = ::cmt_metadata($max_commit);
-			last if ($url eq $gs->metadata_url);
-			$ref_id .= '-';
-		}
-		print STDERR "Initializing parent: $ref_id\n" unless $::_q > 1;
-	}
-	$gs
-}
-
-sub call_authors_prog {
-	my ($orig_author) = @_;
-	$orig_author = command_oneline('rev-parse', '--sq-quote', $orig_author);
-	my $author = `$::_authors_prog $orig_author`;
-	if ($? != 0) {
-		die "$::_authors_prog failed with exit code $?\n"
-	}
-	if ($author =~ /^\s*(.+?)\s*<(.*)>\s*$/) {
-		my ($name, $email) = ($1, $2);
-		return [$name, $email];
-	} else {
-		die "Author: $orig_author: $::_authors_prog returned "
-			. "invalid author format: $author\n";
-	}
-}
-
-sub check_author {
-	my ($author) = @_;
-	if (defined $author) {
-		$author =~ s/^\s+//g;
-		$author =~ s/\s+$//g;
-	}
-	if (!defined $author || length $author == 0) {
-		$author = '(no author)';
-	}
-	if (!defined $::users{$author}) {
-		if (defined $::_authors_prog) {
-			$::users{$author} = call_authors_prog($author);
-		} elsif (defined $::_authors) {
-			die "Author: $author not defined in $::_authors file\n";
-		}
-	}
-	$author;
-}
-
-sub find_extra_svk_parents {
-	my ($self, $tickets, $parents) = @_;
-	# aha!  svk:merge property changed...
-	my @tickets = split "\n", $tickets;
-	my @known_parents;
-	for my $ticket ( @tickets ) {
-		my ($uuid, $path, $rev) = split /:/, $ticket;
-		if ( $uuid eq $self->ra_uuid ) {
-			my $repos_root = $self->url;
-			my $branch_from = $path;
-			$branch_from =~ s{^/}{};
-			my $gs = $self->other_gs(add_path_to_url( $repos_root, $branch_from ),
-			                         $repos_root,
-			                         $branch_from,
-			                         $rev,
-			                         $self->{ref_id});
-			if ( my $commit = $gs->rev_map_get($rev, $uuid) ) {
-				# wahey!  we found it, but it might be
-				# an old one (!)
-				push @known_parents, [ $rev, $commit ];
-			}
-		}
-	}
-	# Ordering matters; highest-numbered commit merge tickets
-	# first, as they may account for later merge ticket additions
-	# or changes.
-	@known_parents = map {$_->[1]} sort {$b->[0] <=> $a->[0]} @known_parents;
-	for my $parent ( @known_parents ) {
-		my @cmd = ('rev-list', $parent, map { "^$_" } @$parents );
-		my ($msg_fh, $ctx) = command_output_pipe(@cmd);
-		my $new;
-		while ( <$msg_fh> ) {
-			$new=1;last;
-		}
-		command_close_pipe($msg_fh, $ctx);
-		if ( $new ) {
-			print STDERR
-			    "Found merge parent (svk:merge ticket): $parent\n";
-			push @$parents, $parent;
-		}
-	}
-}
-
-sub lookup_svn_merge {
-	my $uuid = shift;
-	my $url = shift;
-	my $source = shift;
-	my $revs = shift;
-
-	my $path = $source;
-	$path =~ s{^/}{};
-	my $gs = Git::SVN->find_by_url($url.$source, $url, $path);
-	if ( !$gs ) {
-		warn "Couldn't find revmap for $url$source\n";
-		return;
-	}
-	my @ranges = split ",", $revs;
-	my ($tip, $tip_commit);
-	my @merged_commit_ranges;
-	# find the tip
-	for my $range ( @ranges ) {
-		if ($range =~ /[*]$/) {
-			warn "W: Ignoring partial merge in svn:mergeinfo "
-				."dirprop: $source:$range\n";
-			next;
-		}
-		my ($bottom, $top) = split "-", $range;
-		$top ||= $bottom;
-		my $bottom_commit = $gs->find_rev_after( $bottom, 1, $top );
-		my $top_commit = $gs->find_rev_before( $top, 1, $bottom );
-
-		unless ($top_commit and $bottom_commit) {
-			warn "W: unknown path/rev in svn:mergeinfo "
-				."dirprop: $source:$range\n";
-			next;
-		}
-
-		if (scalar(command('rev-parse', "$bottom_commit^@"))) {
-			push @merged_commit_ranges,
-			     "$bottom_commit^..$top_commit";
-		} else {
-			push @merged_commit_ranges, "$top_commit";
-		}
-
-		if ( !defined $tip or $top > $tip ) {
-			$tip = $top;
-			$tip_commit = $top_commit;
-		}
-	}
-	return ($tip_commit, @merged_commit_ranges);
-}
-
-sub _rev_list {
-	my ($msg_fh, $ctx) = command_output_pipe(
-		"rev-list", @_,
-	       );
-	my @rv;
-	while ( <$msg_fh> ) {
-		chomp;
-		push @rv, $_;
-	}
-	command_close_pipe($msg_fh, $ctx);
-	@rv;
-}
-
-sub check_cherry_pick2 {
-	my $base = shift;
-	my $tip = shift;
-	my $parents = shift;
-	my @ranges = @_;
-	my %commits = map { $_ => 1 }
-		_rev_list("--no-merges", $tip, "--not", $base, @$parents, "--");
-	for my $range ( @ranges ) {
-		delete @commits{_rev_list($range, "--")};
-	}
-	for my $commit (keys %commits) {
-		if (has_no_changes($commit)) {
-			delete $commits{$commit};
-		}
-	}
-	my @k = (keys %commits);
-	return (scalar @k, $k[0]);
-}
-
-sub has_no_changes {
-	my $commit = shift;
-
-	my @revs = split / /, command_oneline(
-		qw(rev-list --parents -1 -m), $commit);
-
-	# Commits with no parents, e.g. the start of a partial branch,
-	# have changes by definition.
-	return 1 if (@revs < 2);
-
-	# Commits with multiple parents, e.g a merge, have no changes
-	# by definition.
-	return 0 if (@revs > 2);
-
-	return (command_oneline("rev-parse", "$commit^{tree}") eq
-		command_oneline("rev-parse", "$commit~1^{tree}"));
-}
-
-sub tie_for_persistent_memoization {
-	my $hash = shift;
-	my $path = shift;
-
-	unless ($memo_backend) {
-		if (eval { require Git::SVN::Memoize::YAML; 1}) {
-			$memo_backend = 1;
-		} else {
-			require Memoize::Storable;
-			$memo_backend = -1;
-		}
-	}
-
-	if ($memo_backend > 0) {
-		tie %$hash => 'Git::SVN::Memoize::YAML', "$path.yaml";
-	} else {
-		# first verify that any existing file can actually be loaded
-		# (it may have been saved by an incompatible version)
-		my $db = "$path.db";
-		if (-e $db) {
-			use Storable qw(retrieve);
-
-			if (!eval { retrieve($db); 1 }) {
-				unlink $db or die "unlink $db failed: $!";
-			}
-		}
-		tie %$hash => 'Memoize::Storable', $db, 'nstore';
-	}
-}
-
-# The GIT_DIR environment variable is not always set until after the command
-# line arguments are processed, so we can't memoize in a BEGIN block.
-{
-	my $memoized = 0;
-
-	sub memoize_svn_mergeinfo_functions {
-		return if $memoized;
-		$memoized = 1;
-
-		my $cache_path = svn_dir() . '/.caches/';
-		mkpath([$cache_path]) unless -d $cache_path;
-
-		my %lookup_svn_merge_cache;
-		my %check_cherry_pick2_cache;
-		my %has_no_changes_cache;
-
-		tie_for_persistent_memoization(\%lookup_svn_merge_cache,
-		    "$cache_path/lookup_svn_merge");
-		memoize 'lookup_svn_merge',
-			SCALAR_CACHE => 'FAULT',
-			LIST_CACHE => ['HASH' => \%lookup_svn_merge_cache],
-		;
-
-		tie_for_persistent_memoization(\%check_cherry_pick2_cache,
-		    "$cache_path/check_cherry_pick2");
-		memoize 'check_cherry_pick2',
-			SCALAR_CACHE => 'FAULT',
-			LIST_CACHE => ['HASH' => \%check_cherry_pick2_cache],
-		;
-
-		tie_for_persistent_memoization(\%has_no_changes_cache,
-		    "$cache_path/has_no_changes");
-		memoize 'has_no_changes',
-			SCALAR_CACHE => ['HASH' => \%has_no_changes_cache],
-			LIST_CACHE => 'FAULT',
-		;
-	}
-
-	sub unmemoize_svn_mergeinfo_functions {
-		return if not $memoized;
-		$memoized = 0;
-
-		Memoize::unmemoize 'lookup_svn_merge';
-		Memoize::unmemoize 'check_cherry_pick2';
-		Memoize::unmemoize 'has_no_changes';
-	}
-
-	sub clear_memoized_mergeinfo_caches {
-		die "Only call this method in non-memoized context" if ($memoized);
-
-		my $cache_path = svn_dir() . '/.caches/';
-		return unless -d $cache_path;
-
-		for my $cache_file (("$cache_path/lookup_svn_merge",
-				     "$cache_path/check_cherry_pick", # old
-				     "$cache_path/check_cherry_pick2",
-				     "$cache_path/has_no_changes")) {
-			for my $suffix (qw(yaml db)) {
-				my $file = "$cache_file.$suffix";
-				next unless -e $file;
-				unlink($file) or die "unlink($file) failed: $!\n";
-			}
-		}
-	}
-
-
-	Memoize::memoize 'Git::SVN::repos_root';
-}
-
-END {
-	# Force cache writeout explicitly instead of waiting for
-	# global destruction to avoid segfault in Storable:
-	# http://rt.cpan.org/Public/Bug/Display.html?id=36087
-	unmemoize_svn_mergeinfo_functions();
-}
-
-sub parents_exclude {
-	my $parents = shift;
-	my @commits = @_;
-	return unless @commits;
-
-	my @excluded;
-	my $excluded;
-	do {
-		my @cmd = ('rev-list', "-1", @commits, "--not", @$parents );
-		$excluded = command_oneline(@cmd);
-		if ( $excluded ) {
-			my @new;
-			my $found;
-			for my $commit ( @commits ) {
-				if ( $commit eq $excluded ) {
-					push @excluded, $commit;
-					$found++;
-				}
-				else {
-					push @new, $commit;
-				}
-			}
-			die "saw commit '$excluded' in rev-list output, "
-				."but we didn't ask for that commit (wanted: @commits --not @$parents)"
-					unless $found;
-			@commits = @new;
-		}
-	}
-		while ($excluded and @commits);
-
-	return @excluded;
-}
-
-# Compute what's new in svn:mergeinfo.
-sub mergeinfo_changes {
-	my ($self, $old_path, $old_rev, $path, $rev, $mergeinfo_prop) = @_;
-	my %minfo = map {split ":", $_ } split "\n", $mergeinfo_prop;
-	my $old_minfo = {};
-
-	my $ra = $self->ra;
-	# Give up if $old_path isn't in the repo.
-	# This is probably a merge on a subtree.
-	if ($ra->check_path($old_path, $old_rev) != $SVN::Node::dir) {
-		warn "W: ignoring svn:mergeinfo on $old_path, ",
-			"directory didn't exist in r$old_rev\n";
-		return {};
-	}
-	my (undef, undef, $props) = $ra->get_dir($old_path, $old_rev);
-	if (defined $props->{"svn:mergeinfo"}) {
-		my %omi = map {split ":", $_ } split "\n",
-			$props->{"svn:mergeinfo"};
-		$old_minfo = \%omi;
-	}
-
-	my %changes = ();
-	foreach my $p (keys %minfo) {
-		my $a = $old_minfo->{$p} || "";
-		my $b = $minfo{$p};
-		# Omit merged branches whose ranges lists are unchanged.
-		next if $a eq $b;
-		# Remove any common range list prefix.
-		($a ^ $b) =~ /^[\0]*/;
-		my $common_prefix = rindex $b, ",", $+[0] - 1;
-		$changes{$p} = substr $b, $common_prefix + 1;
-	}
-	print STDERR "Checking svn:mergeinfo changes since r$old_rev: ",
-		scalar(keys %minfo), " sources, ",
-		scalar(keys %changes), " changed\n";
-
-	return \%changes;
-}
-
-# note: this function should only be called if the various dirprops
-# have actually changed
-sub find_extra_svn_parents {
-	my ($self, $mergeinfo, $parents) = @_;
-	# aha!  svk:merge property changed...
-
-	memoize_svn_mergeinfo_functions();
-
-	# We first search for merged tips which are not in our
-	# history.  Then, we figure out which git revisions are in
-	# that tip, but not this revision.  If all of those revisions
-	# are now marked as merge, we can add the tip as a parent.
-	my @merges = sort keys %$mergeinfo;
-	my @merge_tips;
-	my $url = $self->url;
-	my $uuid = $self->ra_uuid;
-	my @all_ranges;
-	for my $merge ( @merges ) {
-		my ($tip_commit, @ranges) =
-			lookup_svn_merge( $uuid, $url,
-					  $merge, $mergeinfo->{$merge} );
-		unless (!$tip_commit or
-				grep { $_ eq $tip_commit } @$parents ) {
-			push @merge_tips, $tip_commit;
-			push @all_ranges, @ranges;
-		} else {
-			push @merge_tips, undef;
-		}
-	}
-
-	my %excluded = map { $_ => 1 }
-		parents_exclude($parents, grep { defined } @merge_tips);
-
-	# check merge tips for new parents
-	my @new_parents;
-	for my $merge_tip ( @merge_tips ) {
-		my $merge = shift @merges;
-		next unless $merge_tip and $excluded{$merge_tip};
-		my $spec = "$merge:$mergeinfo->{$merge}";
-
-		# check out 'new' tips
-		my $merge_base;
-		eval {
-			$merge_base = command_oneline(
-				"merge-base",
-				@$parents, $merge_tip,
-			);
-		};
-		if ($@) {
-			die "An error occurred during merge-base"
-				unless $@->isa("Git::Error::Command");
-
-			warn "W: Cannot find common ancestor between ".
-			     "@$parents and $merge_tip. Ignoring merge info.\n";
-			next;
-		}
-
-		# double check that there are no missing non-merge commits
-		my ($ninc, $ifirst) = check_cherry_pick2(
-			$merge_base, $merge_tip,
-			$parents,
-			@all_ranges,
-		       );
-
-		if ($ninc) {
-			warn "W: svn cherry-pick ignored ($spec) - missing " .
-				"$ninc commit(s) (eg $ifirst)\n";
-		} else {
-			warn "Found merge parent ($spec): ", $merge_tip, "\n";
-			push @new_parents, $merge_tip;
-		}
-	}
-
-	# cater for merges which merge commits from multiple branches
-	if ( @new_parents > 1 ) {
-		for ( my $i = 0; $i <= $#new_parents; $i++ ) {
-			for ( my $j = 0; $j <= $#new_parents; $j++ ) {
-				next if $i == $j;
-				next unless $new_parents[$i];
-				next unless $new_parents[$j];
-				my $revs = command_oneline(
-					"rev-list", "-1",
-					"$new_parents[$i]..$new_parents[$j]",
-				       );
-				if ( !$revs ) {
-					undef($new_parents[$j]);
-				}
-			}
-		}
-	}
-	push @$parents, grep { defined } @new_parents;
-}
-
-sub make_log_entry {
-	my ($self, $rev, $parents, $ed, $parent_rev, $parent_path) = @_;
-	my $untracked = $self->get_untracked($ed);
-
-	my @parents = @$parents;
-	my $props = $ed->{dir_prop}{$self->path};
-	if ($self->follow_parent) {
-		my $tickets = $props->{"svk:merge"};
-		if ($tickets) {
-			$self->find_extra_svk_parents($tickets, \@parents);
-		}
-
-		my $mergeinfo_prop = $props->{"svn:mergeinfo"};
-		if ($mergeinfo_prop) {
-			my $mi_changes = $self->mergeinfo_changes(
-						$parent_path,
-						$parent_rev,
-						$self->path,
-						$rev,
-						$mergeinfo_prop);
-			$self->find_extra_svn_parents($mi_changes, \@parents);
-		}
-	}
-
-	open my $un, '>>', "$self->{dir}/unhandled.log" or croak $!;
-	print $un "r$rev\n" or croak $!;
-	print $un $_, "\n" foreach @$untracked;
-	my %log_entry = ( parents => \@parents, revision => $rev,
-	                  log => '');
-
-	my $headrev;
-	my $logged = delete $self->{logged_rev_props};
-	if (!$logged || $self->{-want_revprops}) {
-		my $rp = $self->ra->rev_proplist($rev);
-		foreach (sort keys %$rp) {
-			my $v = $rp->{$_};
-			if (/^svn:(author|date|log)$/) {
-				$log_entry{$1} = $v;
-			} elsif ($_ eq 'svm:headrev') {
-				$headrev = $v;
-			} else {
-				print $un "  rev_prop: ", uri_encode($_), ' ',
-					  uri_encode($v), "\n";
-			}
-		}
-	} else {
-		map { $log_entry{$_} = $logged->{$_} } keys %$logged;
-	}
-	close $un or croak $!;
-
-	$log_entry{date} = parse_svn_date($log_entry{date});
-	$log_entry{log} .= "\n";
-	my $author = $log_entry{author} = check_author($log_entry{author});
-	my ($name, $email) = defined $::users{$author} ? @{$::users{$author}}
-						       : ($author, undef);
-
-	my ($commit_name, $commit_email) = ($name, $email);
-	if ($_use_log_author) {
-		my $name_field;
-		if ($log_entry{log} =~ /From:\s+(.*\S)\s*\n/i) {
-			$name_field = $1;
-		} elsif ($log_entry{log} =~ /Signed-off-by:\s+(.*\S)\s*\n/i) {
-			$name_field = $1;
-		}
-		if (!defined $name_field) {
-			if (!defined $email) {
-				$email = $name;
-			}
-		} elsif ($name_field =~ /(.*?)\s+<(.*)>/) {
-			($name, $email) = ($1, $2);
-		} elsif ($name_field =~ /(.*)@/) {
-			($name, $email) = ($1, $name_field);
-		} else {
-			($name, $email) = ($name_field, $name_field);
-		}
-	}
-	if (defined $headrev && $self->use_svm_props) {
-		if ($self->rewrite_root) {
-			die "Can't have both 'useSvmProps' and 'rewriteRoot' ",
-			    "options set!\n";
-		}
-		if ($self->rewrite_uuid) {
-			die "Can't have both 'useSvmProps' and 'rewriteUUID' ",
-			    "options set!\n";
-		}
-		my ($uuid, $r) = $headrev =~ m{^([a-f\d\-]{30,}):(\d+)$}i;
-		# we don't want "SVM: initializing mirror for junk" ...
-		return undef if $r == 0;
-		my $svm = $self->svm;
-		if ($uuid ne $svm->{uuid}) {
-			die "UUID mismatch on SVM path:\n",
-			    "expected: $svm->{uuid}\n",
-			    "     got: $uuid\n";
-		}
-		my $full_url = $self->full_url;
-		$full_url =~ s#^\Q$svm->{replace}\E(/|$)#$svm->{source}$1# or
-		             die "Failed to replace '$svm->{replace}' with ",
-		                 "'$svm->{source}' in $full_url\n";
-		# throw away username for storing in records
-		remove_username($full_url);
-		$log_entry{metadata} = "$full_url\@$r $uuid";
-		$log_entry{svm_revision} = $r;
-		$email = "$author\@$uuid" unless defined $email;
-		$commit_email = "$author\@$uuid" unless defined $commit_email;
-	} elsif ($self->use_svnsync_props) {
-		my $full_url = canonicalize_url(
-			add_path_to_url( $self->svnsync->{url}, $self->path )
-		);
-		remove_username($full_url);
-		my $uuid = $self->svnsync->{uuid};
-		$log_entry{metadata} = "$full_url\@$rev $uuid";
-		$email = "$author\@$uuid" unless defined $email;
-		$commit_email = "$author\@$uuid" unless defined $commit_email;
-	} else {
-		my $url = $self->metadata_url;
-		remove_username($url);
-		my $uuid = $self->rewrite_uuid || $self->ra->get_uuid;
-		$log_entry{metadata} = "$url\@$rev " . $uuid;
-		$email = "$author\@$uuid" unless defined $email;
-		$commit_email = "$author\@$uuid" unless defined $commit_email;
-	}
-	$log_entry{name} = $name;
-	$log_entry{email} = $email;
-	$log_entry{commit_name} = $commit_name;
-	$log_entry{commit_email} = $commit_email;
-	\%log_entry;
-}
-
-sub fetch {
-	my ($self, $min_rev, $max_rev, @parents) = @_;
-	my ($last_rev, $last_commit) = $self->last_rev_commit;
-	my ($base, $head) = $self->get_fetch_range($min_rev, $max_rev);
-	$self->ra->gs_fetch_loop_common($base, $head, [$self]);
-}
-
-sub set_tree_cb {
-	my ($self, $log_entry, $tree, $rev, $date, $author) = @_;
-	$self->{inject_parents} = { $rev => $tree };
-	$self->fetch(undef, undef);
-}
-
-sub set_tree {
-	my ($self, $tree) = (shift, shift);
-	my $log_entry = ::get_commit_entry($tree);
-	unless ($self->{last_rev}) {
-		fatal("Must have an existing revision to commit");
-	}
-	my %ed_opts = ( r => $self->{last_rev},
-	                log => $log_entry->{log},
-	                ra => $self->ra,
-	                tree_a => $self->{last_commit},
-	                tree_b => $tree,
-	                editor_cb => sub {
-			       $self->set_tree_cb($log_entry, $tree, @_) },
-	                svn_path => $self->path );
-	if (!Git::SVN::Editor->new(\%ed_opts)->apply_diff) {
-		print "No changes\nr$self->{last_rev} = $tree\n";
-	}
-}
-
-sub rebuild_from_rev_db {
-	my ($self, $path) = @_;
-	my $r = -1;
-	open my $fh, '<', $path or croak "open: $!";
-	binmode $fh or croak "binmode: $!";
-	while (<$fh>) {
-		length($_) == $::oid_length + 1 or croak "inconsistent size in ($_)";
-		chomp($_);
-		++$r;
-		next if $_ eq ('0' x $::oid_length);
-		$self->rev_map_set($r, $_);
-		print "r$r = $_\n";
-	}
-	close $fh or croak "close: $!";
-	unlink $path or croak "unlink: $!";
-}
-
-#define a global associate map to record rebuild status
-my %rebuild_status;
-#define a global associate map to record rebuild verify status
-my %rebuild_verify_status;
-
-sub rebuild {
-	my ($self) = @_;
-	my $map_path = $self->map_path;
-	my $partial = (-e $map_path && ! -z $map_path);
-	my $verify_key = $self->refname.'^0';
-	if (!$rebuild_verify_status{$verify_key}) {
-		my $verify_result = ::verify_ref($verify_key);
-		if ($verify_result) {
-			$rebuild_verify_status{$verify_key} = 1;
-		}
-	}
-	if (!$rebuild_verify_status{$verify_key}) {
-		return;
-	}
-	if (!$partial && ($self->use_svm_props || $self->no_metadata)) {
-		my $rev_db = $self->rev_db_path;
-		$self->rebuild_from_rev_db($rev_db);
-		if ($self->use_svm_props) {
-			my $svm_rev_db = $self->rev_db_path($self->svm_uuid);
-			$self->rebuild_from_rev_db($svm_rev_db);
-		}
-		$self->unlink_rev_db_symlink;
-		return;
-	}
-	print "Rebuilding $map_path ...\n" if (!$partial);
-	my ($base_rev, $head) = ($partial ? $self->rev_map_max_norebuild(1) :
-		(undef, undef));
-	my $key_value = ($head ? "$head.." : "") . $self->refname;
-	if (exists $rebuild_status{$key_value}) {
-		print "Done rebuilding $map_path\n" if (!$partial || !$head);
-		my $rev_db_path = $self->rev_db_path;
-		if (-f $self->rev_db_path) {
-			unlink $self->rev_db_path or croak "unlink: $!";
-		}
-		$self->unlink_rev_db_symlink;
-		return;
-	}
-	my ($log, $ctx) =
-		command_output_pipe(qw/rev-list --pretty=raw --reverse/,
-				$key_value,
-				'--');
-	$rebuild_status{$key_value} = 1;
-	my $metadata_url = $self->metadata_url;
-	remove_username($metadata_url);
-	my $svn_uuid = $self->rewrite_uuid || $self->ra_uuid;
-	my $c;
-	while (<$log>) {
-		if ( m{^commit ($::oid)$} ) {
-			$c = $1;
-			next;
-		}
-		next unless s{^\s*(git-svn-id:)}{$1};
-		my ($url, $rev, $uuid) = ::extract_metadata($_);
-		remove_username($url);
-
-		# ignore merges (from set-tree)
-		next if (!defined $rev || !$uuid);
-
-		# if we merged or otherwise started elsewhere, this is
-		# how we break out of it
-		if (($uuid ne $svn_uuid) ||
-		    ($metadata_url && $url && ($url ne $metadata_url))) {
-			next;
-		}
-		if ($partial && $head) {
-			print "Partial-rebuilding $map_path ...\n";
-			print "Currently at $base_rev = $head\n";
-			$head = undef;
-		}
-
-		$self->rev_map_set($rev, $c);
-		print "r$rev = $c\n";
-	}
-	command_close_pipe($log, $ctx);
-	print "Done rebuilding $map_path\n" if (!$partial || !$head);
-	my $rev_db_path = $self->rev_db_path;
-	if (-f $self->rev_db_path) {
-		unlink $self->rev_db_path or croak "unlink: $!";
-	}
-	$self->unlink_rev_db_symlink;
-}
-
-# rev_map:
-# Tie::File seems to be prone to offset errors if revisions get sparse,
-# it's not that fast, either.  Tie::File is also not in Perl 5.6.  So
-# one of my favorite modules is out :<  Next up would be one of the DBM
-# modules, but I'm not sure which is most portable...
-#
-# This is the replacement for the rev_db format, which was too big
-# and inefficient for large repositories with a lot of sparse history
-# (mainly tags)
-#
-# The format is this:
-#   - 24 or 36 bytes for every record,
-#     * 4 bytes for the integer representing an SVN revision number
-#     * 20 or 32 bytes representing the oid of a git commit
-#   - No empty padding records like the old format
-#     (except the last record, which can be overwritten)
-#   - new records are written append-only since SVN revision numbers
-#     increase monotonically
-#   - lookups on SVN revision number are done via a binary search
-#   - Piping the file to xxd -c24 is a good way of dumping it for
-#     viewing or editing (piped back through xxd -r), should the need
-#     ever arise.
-#   - The last record can be padding revision with an all-zero oid
-#     This is used to optimize fetch performance when using multiple
-#     "fetch" directives in .git/config
-#
-# These files are disposable unless noMetadata or useSvmProps is set
-
-sub _rev_map_set {
-	my ($fh, $rev, $commit) = @_;
-	my $record_size = ($::oid_length / 2) + 4;
-
-	binmode $fh or croak "binmode: $!";
-	my $size = (stat($fh))[7];
-	($size % $record_size) == 0 or croak "inconsistent size: $size";
-
-	my $wr_offset = 0;
-	if ($size > 0) {
-		sysseek($fh, -$record_size, SEEK_END) or croak "seek: $!";
-		my $read = sysread($fh, my $buf, $record_size) or croak "read: $!";
-		$read == $record_size or croak "read only $read bytes (!= $record_size)";
-		my ($last_rev, $last_commit) = unpack(rev_map_fmt, $buf);
-		if ($last_commit eq ('0' x $::oid_length)) {
-			if ($size >= ($record_size * 2)) {
-				sysseek($fh, -($record_size * 2), SEEK_END) or croak "seek: $!";
-				$read = sysread($fh, $buf, $record_size) or
-				    croak "read: $!";
-				$read == $record_size or
-				    croak "read only $read bytes (!= $record_size)";
-				($last_rev, $last_commit) =
-				    unpack(rev_map_fmt, $buf);
-				if ($last_commit eq ('0' x $::oid_length)) {
-					croak "inconsistent .rev_map\n";
-				}
-			}
-			if ($last_rev >= $rev) {
-				croak "last_rev is higher!: $last_rev >= $rev";
-			}
-			$wr_offset = -$record_size;
-		}
-	}
-	sysseek($fh, $wr_offset, SEEK_END) or croak "seek: $!";
-	syswrite($fh, pack(rev_map_fmt, $rev, $commit), $record_size) == $record_size or
-	  croak "write: $!";
-}
-
-sub _rev_map_reset {
-	my ($fh, $rev, $commit) = @_;
-	my $c = _rev_map_get($fh, $rev);
-	$c eq $commit or die "_rev_map_reset(@_) commit $c does not match!\n";
-	my $offset = sysseek($fh, 0, SEEK_CUR) or croak "seek: $!";
-	truncate $fh, $offset or croak "truncate: $!";
-}
-
-sub mkfile {
-	my ($path) = @_;
-	unless (-e $path) {
-		my ($dir, $base) = ($path =~ m#^(.*?)/?([^/]+)$#);
-		mkpath([$dir]) unless -d $dir;
-		open my $fh, '>>', $path or die "Couldn't create $path: $!\n";
-		close $fh or die "Couldn't close (create) $path: $!\n";
-	}
-}
-
-sub rev_map_set {
-	my ($self, $rev, $commit, $update_ref, $uuid) = @_;
-	defined $commit or die "missing arg3\n";
-	$commit =~ /^$::oid$/ or die "arg3 must be a full hex object ID\n";
-	my $db = $self->map_path($uuid);
-	my $db_lock = "$db.lock";
-	my $sigmask;
-	$update_ref ||= 0;
-	if ($update_ref) {
-		$sigmask = POSIX::SigSet->new();
-		my $signew = POSIX::SigSet->new(SIGINT, SIGHUP, SIGTERM,
-			SIGALRM, SIGUSR1, SIGUSR2);
-		sigprocmask(SIG_BLOCK, $signew, $sigmask) or
-			croak "Can't block signals: $!";
-	}
-	mkfile($db);
-
-	$LOCKFILES{$db_lock} = 1;
-	my $sync;
-	# both of these options make our .rev_db file very, very important
-	# and we can't afford to lose it because rebuild() won't work
-	if ($self->use_svm_props || $self->no_metadata) {
-		require File::Copy;
-		$sync = 1;
-		File::Copy::copy($db, $db_lock) or die "rev_map_set(@_): ",
-					   "Failed to copy: ",
-					   "$db => $db_lock ($!)\n";
-	} else {
-		rename $db, $db_lock or die "rev_map_set(@_): ",
-					    "Failed to rename: ",
-					    "$db => $db_lock ($!)\n";
-	}
-
-	sysopen(my $fh, $db_lock, O_RDWR | O_CREAT)
-	     or croak "Couldn't open $db_lock: $!\n";
-	if ($update_ref eq 'reset') {
-		clear_memoized_mergeinfo_caches();
-		_rev_map_reset($fh, $rev, $commit);
-	} else {
-		_rev_map_set($fh, $rev, $commit);
-	}
-
-	if ($sync) {
-		$fh->flush or die "Couldn't flush $db_lock: $!\n";
-		$fh->sync or die "Couldn't sync $db_lock: $!\n";
-	}
-	close $fh or croak $!;
-	if ($update_ref) {
-		$_head = $self;
-		my $note = "";
-		$note = " ($update_ref)" if ($update_ref !~ /^\d*$/);
-		command_noisy('update-ref', '-m', "r$rev$note",
-		              $self->refname, $commit);
-	}
-	rename $db_lock, $db or die "rev_map_set(@_): ", "Failed to rename: ",
-	                            "$db_lock => $db ($!)\n";
-	delete $LOCKFILES{$db_lock};
-	if ($update_ref) {
-		sigprocmask(SIG_SETMASK, $sigmask) or
-			croak "Can't restore signal mask: $!";
-	}
-}
-
-# If want_commit, this will return an array of (rev, commit) where
-# commit _must_ be a valid commit in the archive.
-# Otherwise, it'll return the max revision (whether or not the
-# commit is valid or just a 0x40 placeholder).
-sub rev_map_max {
-	my ($self, $want_commit) = @_;
-	$self->rebuild;
-	my ($r, $c) = $self->rev_map_max_norebuild($want_commit);
-	$want_commit ? ($r, $c) : $r;
-}
-
-sub rev_map_max_norebuild {
-	my ($self, $want_commit) = @_;
-	my $record_size = ($::oid_length / 2) + 4;
-	my $map_path = $self->map_path;
-	stat $map_path or return $want_commit ? (0, undef) : 0;
-	sysopen(my $fh, $map_path, O_RDONLY) or croak "open: $!";
-	binmode $fh or croak "binmode: $!";
-	my $size = (stat($fh))[7];
-	($size % $record_size) == 0 or croak "inconsistent size: $size";
-
-	if ($size == 0) {
-		close $fh or croak "close: $!";
-		return $want_commit ? (0, undef) : 0;
-	}
-
-	sysseek($fh, -$record_size, SEEK_END) or croak "seek: $!";
-	sysread($fh, my $buf, $record_size) == $record_size or croak "read: $!";
-	my ($r, $c) = unpack(rev_map_fmt, $buf);
-	if ($want_commit && $c eq ('0' x $::oid_length)) {
-		if ($size < $record_size * 2) {
-			return $want_commit ? (0, undef) : 0;
-		}
-		sysseek($fh, -($record_size * 2), SEEK_END) or croak "seek: $!";
-		sysread($fh, $buf, $record_size) == $record_size or croak "read: $!";
-		($r, $c) = unpack(rev_map_fmt, $buf);
-		if ($c eq ('0' x $::oid_length)) {
-			croak "Penultimate record is all-zeroes in $map_path";
-		}
-	}
-	close $fh or croak "close: $!";
-	$want_commit ? ($r, $c) : $r;
-}
-
-sub rev_map_get {
-	my ($self, $rev, $uuid) = @_;
-	my $map_path = $self->map_path($uuid);
-	return undef unless -e $map_path;
-
-	sysopen(my $fh, $map_path, O_RDONLY) or croak "open: $!";
-	my $c = _rev_map_get($fh, $rev);
-	close($fh) or croak "close: $!";
-	$c
-}
-
-sub _rev_map_get {
-	my ($fh, $rev) = @_;
-	my $record_size = ($::oid_length / 2) + 4;
-
-	binmode $fh or croak "binmode: $!";
-	my $size = (stat($fh))[7];
-	($size % $record_size) == 0 or croak "inconsistent size: $size";
-
-	if ($size == 0) {
-		return undef;
-	}
-
-	my ($l, $u) = (0, $size - $record_size);
-	my ($r, $c, $buf);
-
-	while ($l <= $u) {
-		my $i = int(($l/$record_size + $u/$record_size) / 2) * $record_size;
-		sysseek($fh, $i, SEEK_SET) or croak "seek: $!";
-		sysread($fh, my $buf, $record_size) == $record_size or croak "read: $!";
-		my ($r, $c) = unpack(rev_map_fmt, $buf);
-
-		if ($r < $rev) {
-			$l = $i + $record_size;
-		} elsif ($r > $rev) {
-			$u = $i - $record_size;
-		} else { # $r == $rev
-			return $c eq ('0' x $::oid_length) ? undef : $c;
-		}
-	}
-	undef;
-}
-
-# Finds the first svn revision that exists on (if $eq_ok is true) or
-# before $rev for the current branch.  It will not search any lower
-# than $min_rev.  Returns the git commit hash and svn revision number
-# if found, else (undef, undef).
-sub find_rev_before {
-	my ($self, $rev, $eq_ok, $min_rev) = @_;
-	--$rev unless $eq_ok;
-	$min_rev ||= 1;
-	my $max_rev = $self->rev_map_max;
-	$rev = $max_rev if ($rev > $max_rev);
-	while ($rev >= $min_rev) {
-		if (my $c = $self->rev_map_get($rev)) {
-			return ($rev, $c);
-		}
-		--$rev;
-	}
-	return (undef, undef);
-}
-
-# Finds the first svn revision that exists on (if $eq_ok is true) or
-# after $rev for the current branch.  It will not search any higher
-# than $max_rev.  Returns the git commit hash and svn revision number
-# if found, else (undef, undef).
-sub find_rev_after {
-	my ($self, $rev, $eq_ok, $max_rev) = @_;
-	++$rev unless $eq_ok;
-	$max_rev ||= $self->rev_map_max;
-	while ($rev <= $max_rev) {
-		if (my $c = $self->rev_map_get($rev)) {
-			return ($rev, $c);
-		}
-		++$rev;
-	}
-	return (undef, undef);
-}
-
-sub _new {
-	my ($class, $repo_id, $ref_id, $path) = @_;
-	unless (defined $repo_id && length $repo_id) {
-		$repo_id = $default_repo_id;
-	}
-	unless (defined $ref_id && length $ref_id) {
-		# Access the prefix option from the git-svn main program if it's loaded.
-		my $prefix = defined &::opt_prefix ? ::opt_prefix() : "";
-		$_[2] = $ref_id =
-		             "refs/remotes/$prefix$default_ref_id";
-	}
-	$_[1] = $repo_id;
-	my $svn_dir = svn_dir();
-	my $dir = "$svn_dir/$ref_id";
-
-	# Older repos imported by us used $svn_dir/foo instead of
-	# $svn_dir/refs/remotes/foo when tracking refs/remotes/foo
-	if ($ref_id =~ m{^refs/remotes/(.+)}) {
-		my $old_dir = "$svn_dir/$1";
-		if (-d $old_dir && ! -d $dir) {
-			$dir = $old_dir;
-		}
-	}
-
-	$_[3] = $path = '' unless (defined $path);
-	mkpath([$dir]);
-	my $obj = bless {
-		ref_id => $ref_id, dir => $dir, index => "$dir/index",
-	        config => "$svn_dir/config",
-	        map_root => "$dir/.rev_map", repo_id => $repo_id }, $class;
-
-	# Ensure it gets canonicalized
-	$obj->path($path);
-
-	return $obj;
-}
-
-sub path {
-	my $self = shift;
-
-	if (@_) {
-		my $path = shift;
-		$self->{_path} = canonicalize_path($path);
-		return;
-	}
-
-	return $self->{_path};
-}
-
-sub url {
-	my $self = shift;
-
-	if (@_) {
-		my $url = shift;
-		$self->{url} = canonicalize_url($url);
-		return;
-	}
-
-	return $self->{url};
-}
-
-# for read-only access of old .rev_db formats
-sub unlink_rev_db_symlink {
-	my ($self) = @_;
-	my $link = $self->rev_db_path;
-	$link =~ s/\.[\w-]+$// or croak "missing UUID at the end of $link";
-	if (-l $link) {
-		unlink $link or croak "unlink: $link failed!";
-	}
-}
-
-sub rev_db_path {
-	my ($self, $uuid) = @_;
-	my $db_path = $self->map_path($uuid);
-	$db_path =~ s{/\.rev_map\.}{/\.rev_db\.}
-	    or croak "map_path: $db_path does not contain '/.rev_map.' !";
-	$db_path;
-}
-
-# the new replacement for .rev_db
-sub map_path {
-	my ($self, $uuid) = @_;
-	$uuid ||= $self->ra_uuid;
-	"$self->{map_root}.$uuid";
-}
-
-sub uri_encode {
-	my ($f) = @_;
-	$f =~ s#([^a-zA-Z0-9\*!\:_\./\-])#sprintf("%%%02X",ord($1))#eg;
-	$f
-}
-
-sub uri_decode {
-	my ($f) = @_;
-	$f =~ s#%([0-9a-fA-F]{2})#chr(hex($1))#eg;
-	$f
-}
-
-sub remove_username {
-	$_[0] =~ s{^([^:]*://)[^@]+@}{$1};
-}
-
-1;
diff --git a/third_party/git/perl/Git/SVN/Editor.pm b/third_party/git/perl/Git/SVN/Editor.pm
deleted file mode 100644
index c961444d4cbb..000000000000
--- a/third_party/git/perl/Git/SVN/Editor.pm
+++ /dev/null
@@ -1,605 +0,0 @@
-package Git::SVN::Editor;
-use vars qw/@ISA $_rmdir $_cp_similarity $_find_copies_harder $_rename_limit/;
-use strict;
-use warnings;
-use SVN::Core;
-use SVN::Delta;
-use Carp qw/croak/;
-use Git qw/command command_oneline command_noisy command_output_pipe
-           command_input_pipe command_close_pipe
-           command_bidi_pipe command_close_bidi_pipe
-           get_record/;
-
-BEGIN {
-	@ISA = qw(SVN::Delta::Editor);
-}
-
-sub new {
-	my ($class, $opts) = @_;
-	foreach (qw/svn_path r ra tree_a tree_b log editor_cb/) {
-		die "$_ required!\n" unless (defined $opts->{$_});
-	}
-
-	my $pool = SVN::Pool->new;
-	my $mods = generate_diff($opts->{tree_a}, $opts->{tree_b});
-	my $types = check_diff_paths($opts->{ra}, $opts->{svn_path},
-	                             $opts->{r}, $mods);
-
-	# $opts->{ra} functions should not be used after this:
-	my @ce  = $opts->{ra}->get_commit_editor($opts->{log},
-	                                        $opts->{editor_cb}, $pool);
-	my $self = SVN::Delta::Editor->new(@ce, $pool);
-	bless $self, $class;
-	foreach (qw/svn_path r tree_a tree_b/) {
-		$self->{$_} = $opts->{$_};
-	}
-	$self->{url} = $opts->{ra}->{url};
-	$self->{mods} = $mods;
-	$self->{types} = $types;
-	$self->{pool} = $pool;
-	$self->{bat} = { '' => $self->open_root($self->{r}, $self->{pool}) };
-	$self->{rm} = { };
-	$self->{path_prefix} = length $self->{svn_path} ?
-	                       "$self->{svn_path}/" : '';
-	$self->{config} = $opts->{config};
-	$self->{mergeinfo} = $opts->{mergeinfo};
-	$self->{pathnameencoding} = Git::config('svn.pathnameencoding');
-	return $self;
-}
-
-sub generate_diff {
-	my ($tree_a, $tree_b) = @_;
-	my @diff_tree = qw(diff-tree -z -r);
-	if ($_cp_similarity) {
-		push @diff_tree, "-C$_cp_similarity";
-	} else {
-		push @diff_tree, '-C';
-	}
-	push @diff_tree, '--find-copies-harder' if $_find_copies_harder;
-	push @diff_tree, "-l$_rename_limit" if defined $_rename_limit;
-	push @diff_tree, $tree_a, $tree_b;
-	my ($diff_fh, $ctx) = command_output_pipe(@diff_tree);
-	my $state = 'meta';
-	my @mods;
-	while (defined($_ = get_record($diff_fh, "\0"))) {
-		if ($state eq 'meta' && /^:(\d{6})\s(\d{6})\s
-					($::oid)\s($::oid)\s
-					([MTCRAD])\d*$/xo) {
-			push @mods, {	mode_a => $1, mode_b => $2,
-					sha1_a => $3, sha1_b => $4,
-					chg => $5 };
-			if ($5 =~ /^(?:C|R)$/) {
-				$state = 'file_a';
-			} else {
-				$state = 'file_b';
-			}
-		} elsif ($state eq 'file_a') {
-			my $x = $mods[$#mods] or croak "Empty array\n";
-			if ($x->{chg} !~ /^(?:C|R)$/) {
-				croak "Error parsing $_, $x->{chg}\n";
-			}
-			$x->{file_a} = $_;
-			$state = 'file_b';
-		} elsif ($state eq 'file_b') {
-			my $x = $mods[$#mods] or croak "Empty array\n";
-			if (exists $x->{file_a} && $x->{chg} !~ /^(?:C|R)$/) {
-				croak "Error parsing $_, $x->{chg}\n";
-			}
-			if (!exists $x->{file_a} && $x->{chg} =~ /^(?:C|R)$/) {
-				croak "Error parsing $_, $x->{chg}\n";
-			}
-			$x->{file_b} = $_;
-			$state = 'meta';
-		} else {
-			croak "Error parsing $_\n";
-		}
-	}
-	command_close_pipe($diff_fh, $ctx);
-	\@mods;
-}
-
-sub check_diff_paths {
-	my ($ra, $pfx, $rev, $mods) = @_;
-	my %types;
-	$pfx .= '/' if length $pfx;
-
-	sub type_diff_paths {
-		my ($ra, $types, $path, $rev) = @_;
-		my @p = split m#/+#, $path;
-		my $c = shift @p;
-		unless (defined $types->{$c}) {
-			$types->{$c} = $ra->check_path($c, $rev);
-		}
-		while (@p) {
-			$c .= '/' . shift @p;
-			next if defined $types->{$c};
-			$types->{$c} = $ra->check_path($c, $rev);
-		}
-	}
-
-	foreach my $m (@$mods) {
-		foreach my $f (qw/file_a file_b/) {
-			next unless defined $m->{$f};
-			my ($dir) = ($m->{$f} =~ m#^(.*?)/?(?:[^/]+)$#);
-			if (length $pfx.$dir && ! defined $types{$dir}) {
-				type_diff_paths($ra, \%types, $pfx.$dir, $rev);
-			}
-		}
-	}
-	\%types;
-}
-
-sub split_path {
-	return ($_[0] =~ m#^(.*?)/?([^/]+)$#);
-}
-
-sub repo_path {
-	my ($self, $path) = @_;
-	if (my $enc = $self->{pathnameencoding}) {
-		require Encode;
-		Encode::from_to($path, $enc, 'UTF-8');
-	}
-	$self->{path_prefix}.(defined $path ? $path : '');
-}
-
-sub url_path {
-	my ($self, $path) = @_;
-	$path = $self->repo_path($path);
-	if ($self->{url} =~ m#^https?://#) {
-		# characters are taken from subversion/libsvn_subr/path.c
-		$path =~ s#([^~a-zA-Z0-9_./!$&'()*+,-])#sprintf("%%%02X",ord($1))#eg;
-	}
-	$self->{url} . '/' . $path;
-}
-
-sub rmdirs {
-	my ($self) = @_;
-	my $rm = $self->{rm};
-	delete $rm->{''}; # we never delete the url we're tracking
-	return unless %$rm;
-
-	foreach (keys %$rm) {
-		my @d = split m#/#, $_;
-		my $c = shift @d;
-		$rm->{$c} = 1;
-		while (@d) {
-			$c .= '/' . shift @d;
-			$rm->{$c} = 1;
-		}
-	}
-	delete $rm->{$self->{svn_path}};
-	delete $rm->{''}; # we never delete the url we're tracking
-	return unless %$rm;
-
-	my ($fh, $ctx) = command_output_pipe(qw/ls-tree --name-only -r -z/,
-	                                     $self->{tree_b});
-	while (defined($_ = get_record($fh, "\0"))) {
-		my @dn = split m#/#, $_;
-		while (pop @dn) {
-			delete $rm->{join '/', @dn};
-		}
-		unless (%$rm) {
-			close $fh;
-			return;
-		}
-	}
-	command_close_pipe($fh, $ctx);
-
-	my ($r, $p, $bat) = ($self->{r}, $self->{pool}, $self->{bat});
-	foreach my $d (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$rm) {
-		$self->close_directory($bat->{$d}, $p);
-		my ($dn) = ($d =~ m#^(.*?)/?(?:[^/]+)$#);
-		print "\tD+\t$d/\n" unless $::_q;
-		$self->SUPER::delete_entry($d, $r, $bat->{$dn}, $p);
-		delete $bat->{$d};
-	}
-}
-
-sub open_or_add_dir {
-	my ($self, $full_path, $baton, $deletions) = @_;
-	my $t = $self->{types}->{$full_path};
-	if (!defined $t) {
-		die "$full_path not known in r$self->{r} or we have a bug!\n";
-	}
-	{
-		no warnings 'once';
-		# SVN::Node::none and SVN::Node::file are used only once,
-		# so we're shutting up Perl's warnings about them.
-		if ($t == $SVN::Node::none || defined($deletions->{$full_path})) {
-			return $self->add_directory($full_path, $baton,
-			    undef, -1, $self->{pool});
-		} elsif ($t == $SVN::Node::dir) {
-			return $self->open_directory($full_path, $baton,
-			    $self->{r}, $self->{pool});
-		} # no warnings 'once'
-		print STDERR "$full_path already exists in repository at ",
-		    "r$self->{r} and it is not a directory (",
-		    ($t == $SVN::Node::file ? 'file' : 'unknown'),"/$t)\n";
-	} # no warnings 'once'
-	exit 1;
-}
-
-sub ensure_path {
-	my ($self, $path, $deletions) = @_;
-	my $bat = $self->{bat};
-	my $repo_path = $self->repo_path($path);
-	return $bat->{''} unless (length $repo_path);
-
-	my @p = split m#/+#, $repo_path;
-	my $c = shift @p;
-	$bat->{$c} ||= $self->open_or_add_dir($c, $bat->{''}, $deletions);
-	while (@p) {
-		my $c0 = $c;
-		$c .= '/' . shift @p;
-		$bat->{$c} ||= $self->open_or_add_dir($c, $bat->{$c0}, $deletions);
-	}
-	return $bat->{$c};
-}
-
-# Subroutine to convert a globbing pattern to a regular expression.
-# From perl cookbook.
-sub glob2pat {
-	my $globstr = shift;
-	my %patmap = ('*' => '.*', '?' => '.', '[' => '[', ']' => ']');
-	$globstr =~ s{(.)} { $patmap{$1} || "\Q$1" }ge;
-	return '^' . $globstr . '$';
-}
-
-sub check_autoprop {
-	my ($self, $pattern, $properties, $file, $fbat) = @_;
-	# Convert the globbing pattern to a regular expression.
-	my $regex = glob2pat($pattern);
-	# Check if the pattern matches the file name.
-	if($file =~ m/($regex)/) {
-		# Parse the list of properties to set.
-		my @props = split(/;/, $properties);
-		foreach my $prop (@props) {
-			# Parse 'name=value' syntax and set the property.
-			if ($prop =~ /([^=]+)=(.*)/) {
-				my ($n,$v) = ($1,$2);
-				for ($n, $v) {
-					s/^\s+//; s/\s+$//;
-				}
-				$self->change_file_prop($fbat, $n, $v);
-			}
-		}
-	}
-}
-
-sub apply_autoprops {
-	my ($self, $file, $fbat) = @_;
-	my $conf_t = ${$self->{config}}{'config'};
-	no warnings 'once';
-	# Check [miscellany]/enable-auto-props in svn configuration.
-	if (SVN::_Core::svn_config_get_bool(
-		$conf_t,
-		$SVN::_Core::SVN_CONFIG_SECTION_MISCELLANY,
-		$SVN::_Core::SVN_CONFIG_OPTION_ENABLE_AUTO_PROPS,
-		0)) {
-		# Auto-props are enabled.  Enumerate them to look for matches.
-		my $callback = sub {
-			$self->check_autoprop($_[0], $_[1], $file, $fbat);
-		};
-		SVN::_Core::svn_config_enumerate(
-			$conf_t,
-			$SVN::_Core::SVN_CONFIG_SECTION_AUTO_PROPS,
-			$callback);
-	}
-}
-
-sub check_attr {
-	my ($attr,$path) = @_;
-	my $val = command_oneline("check-attr", $attr, "--", $path);
-	if ($val) { $val =~ s/^[^:]*:\s*[^:]*:\s*(.*)\s*$/$1/; }
-	return $val;
-}
-
-sub apply_manualprops {
-	my ($self, $file, $fbat) = @_;
-	my $pending_properties = check_attr( "svn-properties", $file );
-	if ($pending_properties eq "") { return; }
-	# Parse the list of properties to set.
-	my @props = split(/;/, $pending_properties);
-	# TODO: get existing properties to compare to
-	# - this fails for add so currently not done
-	# my $existing_props = ::get_svnprops($file);
-	my $existing_props = {};
-	# TODO: caching svn properties or storing them in .gitattributes
-	# would make that faster
-	foreach my $prop (@props) {
-		# Parse 'name=value' syntax and set the property.
-		if ($prop =~ /([^=]+)=(.*)/) {
-			my ($n,$v) = ($1,$2);
-			for ($n, $v) {
-				s/^\s+//; s/\s+$//;
-			}
-			my $existing = $existing_props->{$n};
-			if (!defined($existing) || $existing ne $v) {
-			    $self->change_file_prop($fbat, $n, $v);
-			}
-		}
-	}
-}
-
-sub A {
-	my ($self, $m, $deletions) = @_;
-	my ($dir, $file) = split_path($m->{file_b});
-	my $pbat = $self->ensure_path($dir, $deletions);
-	my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
-					undef, -1);
-	print "\tA\t$m->{file_b}\n" unless $::_q;
-	$self->apply_autoprops($file, $fbat);
-	$self->apply_manualprops($m->{file_b}, $fbat);
-	$self->chg_file($fbat, $m);
-	$self->close_file($fbat,undef,$self->{pool});
-}
-
-sub C {
-	my ($self, $m, $deletions) = @_;
-	my ($dir, $file) = split_path($m->{file_b});
-	my $pbat = $self->ensure_path($dir, $deletions);
-	# workaround for a bug in svn serf backend (v1.8.5 and below):
-	# store third argument to ->add_file() in a local variable, to make it
-	# have the same lifetime as $fbat
-	my $upa = $self->url_path($m->{file_a});
-	my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
-				$upa, $self->{r});
-	print "\tC\t$m->{file_a} => $m->{file_b}\n" unless $::_q;
-	$self->apply_manualprops($m->{file_b}, $fbat);
-	$self->chg_file($fbat, $m);
-	$self->close_file($fbat,undef,$self->{pool});
-}
-
-sub delete_entry {
-	my ($self, $path, $pbat) = @_;
-	my $rpath = $self->repo_path($path);
-	my ($dir, $file) = split_path($rpath);
-	$self->{rm}->{$dir} = 1;
-	$self->SUPER::delete_entry($rpath, $self->{r}, $pbat, $self->{pool});
-}
-
-sub R {
-	my ($self, $m, $deletions) = @_;
-	my ($dir, $file) = split_path($m->{file_b});
-	my $pbat = $self->ensure_path($dir, $deletions);
-	# workaround for a bug in svn serf backend, see comment in C() above
-	my $upa = $self->url_path($m->{file_a});
-	my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat,
-				$upa, $self->{r});
-	print "\tR\t$m->{file_a} => $m->{file_b}\n" unless $::_q;
-	$self->apply_autoprops($file, $fbat);
-	$self->apply_manualprops($m->{file_b}, $fbat);
-	$self->chg_file($fbat, $m);
-	$self->close_file($fbat,undef,$self->{pool});
-
-	($dir, $file) = split_path($m->{file_a});
-	$pbat = $self->ensure_path($dir, $deletions);
-	$self->delete_entry($m->{file_a}, $pbat);
-}
-
-sub M {
-	my ($self, $m, $deletions) = @_;
-	my ($dir, $file) = split_path($m->{file_b});
-	my $pbat = $self->ensure_path($dir, $deletions);
-	my $fbat = $self->open_file($self->repo_path($m->{file_b}),
-				$pbat,$self->{r},$self->{pool});
-	print "\t$m->{chg}\t$m->{file_b}\n" unless $::_q;
-	$self->apply_manualprops($m->{file_b}, $fbat);
-	$self->chg_file($fbat, $m);
-	$self->close_file($fbat,undef,$self->{pool});
-}
-
-sub T {
-	my ($self, $m, $deletions) = @_;
-
-	# Work around subversion issue 4091: toggling the "is a
-	# symlink" property requires removing and re-adding a
-	# file or else "svn up" on affected clients trips an
-	# assertion and aborts.
-	if (($m->{mode_b} =~ /^120/ && $m->{mode_a} !~ /^120/) ||
-	    ($m->{mode_b} !~ /^120/ && $m->{mode_a} =~ /^120/)) {
-		$self->D({
-			mode_a => $m->{mode_a}, mode_b => '000000',
-			sha1_a => $m->{sha1_a}, sha1_b => '0' x $::oid_length,
-			chg => 'D', file_b => $m->{file_b}
-		}, $deletions);
-		$self->A({
-			mode_a => '000000', mode_b => $m->{mode_b},
-			sha1_a => '0' x $::oid_length, sha1_b => $m->{sha1_b},
-			chg => 'A', file_b => $m->{file_b}
-		}, $deletions);
-		return;
-	}
-
-	$self->M($m, $deletions);
-}
-
-sub change_file_prop {
-	my ($self, $fbat, $pname, $pval) = @_;
-	$self->SUPER::change_file_prop($fbat, $pname, $pval, $self->{pool});
-}
-
-sub change_dir_prop {
-	my ($self, $pbat, $pname, $pval) = @_;
-	$self->SUPER::change_dir_prop($pbat, $pname, $pval, $self->{pool});
-}
-
-sub _chg_file_get_blob ($$$$) {
-	my ($self, $fbat, $m, $which) = @_;
-	my $fh = $::_repository->temp_acquire("git_blob_$which");
-	if ($m->{"mode_$which"} =~ /^120/) {
-		print $fh 'link ' or croak $!;
-		$self->change_file_prop($fbat,'svn:special','*');
-	} elsif ($m->{mode_a} =~ /^120/ && $m->{"mode_$which"} !~ /^120/) {
-		$self->change_file_prop($fbat,'svn:special',undef);
-	}
-	my $blob = $m->{"sha1_$which"};
-	return ($fh,) if ($blob =~ /^0+$/);
-	my $size = $::_repository->cat_blob($blob, $fh);
-	croak "Failed to read object $blob" if ($size < 0);
-	$fh->flush == 0 or croak $!;
-	seek $fh, 0, 0 or croak $!;
-
-	my $exp = ::md5sum($fh);
-	seek $fh, 0, 0 or croak $!;
-	return ($fh, $exp);
-}
-
-sub chg_file {
-	my ($self, $fbat, $m) = @_;
-	if ($m->{mode_b} =~ /755$/ && $m->{mode_a} !~ /755$/) {
-		$self->change_file_prop($fbat,'svn:executable','*');
-	} elsif ($m->{mode_b} !~ /755$/ && $m->{mode_a} =~ /755$/) {
-		$self->change_file_prop($fbat,'svn:executable',undef);
-	}
-	my ($fh_a, $exp_a) = _chg_file_get_blob $self, $fbat, $m, 'a';
-	my ($fh_b, $exp_b) = _chg_file_get_blob $self, $fbat, $m, 'b';
-	my $pool = SVN::Pool->new;
-	my $atd = $self->apply_textdelta($fbat, $exp_a, $pool);
-	if (-s $fh_a) {
-		my $txstream = SVN::TxDelta::new ($fh_a, $fh_b, $pool);
-		my $res = SVN::TxDelta::send_txstream($txstream, @$atd, $pool);
-		if (defined $res) {
-			die "Unexpected result from send_txstream: $res\n",
-			    "(SVN::Core::VERSION: $SVN::Core::VERSION)\n";
-		}
-	} else {
-		my $got = SVN::TxDelta::send_stream($fh_b, @$atd, $pool);
-		die "Checksum mismatch\nexpected: $exp_b\ngot: $got\n"
-		    if ($got ne $exp_b);
-	}
-	Git::temp_release($fh_b, 1);
-	Git::temp_release($fh_a, 1);
-	$pool->clear;
-}
-
-sub D {
-	my ($self, $m, $deletions) = @_;
-	my ($dir, $file) = split_path($m->{file_b});
-	my $pbat = $self->ensure_path($dir, $deletions);
-	print "\tD\t$m->{file_b}\n" unless $::_q;
-	$self->delete_entry($m->{file_b}, $pbat);
-}
-
-sub close_edit {
-	my ($self) = @_;
-	my ($p,$bat) = ($self->{pool}, $self->{bat});
-	foreach (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$bat) {
-		next if $_ eq '';
-		$self->close_directory($bat->{$_}, $p);
-	}
-	$self->close_directory($bat->{''}, $p);
-	$self->SUPER::close_edit($p);
-	$p->clear;
-}
-
-sub abort_edit {
-	my ($self) = @_;
-	$self->SUPER::abort_edit($self->{pool});
-}
-
-sub DESTROY {
-	my $self = shift;
-	$self->SUPER::DESTROY(@_);
-	$self->{pool}->clear;
-}
-
-# this drives the editor
-sub apply_diff {
-	my ($self) = @_;
-	my $mods = $self->{mods};
-	my %o = ( D => 0, C => 1, R => 2, A => 3, M => 4, T => 5 );
-	my %deletions;
-
-	foreach my $m (@$mods) {
-		if ($m->{chg} eq "D") {
-			$deletions{$m->{file_b}} = 1;
-		}
-	}
-
-	foreach my $m (sort { $o{$a->{chg}} <=> $o{$b->{chg}} } @$mods) {
-		my $f = $m->{chg};
-		if (defined $o{$f}) {
-			$self->$f($m, \%deletions);
-		} else {
-			fatal("Invalid change type: $f");
-		}
-	}
-
-	if (defined($self->{mergeinfo})) {
-		$self->change_dir_prop($self->{bat}{''}, "svn:mergeinfo",
-			               $self->{mergeinfo});
-	}
-	$self->rmdirs if $_rmdir;
-	if (@$mods == 0 && !defined($self->{mergeinfo})) {
-		$self->abort_edit;
-	} else {
-		$self->close_edit;
-	}
-	return scalar @$mods;
-}
-
-1;
-__END__
-
-=head1 NAME
-
-Git::SVN::Editor - commit driver for "git svn set-tree" and dcommit
-
-=head1 SYNOPSIS
-
-	use Git::SVN::Editor;
-	use Git::SVN::Ra;
-
-	my $ra = Git::SVN::Ra->new($url);
-	my %opts = (
-		r => 19,
-		log => "log message",
-		ra => $ra,
-		config => SVN::Core::config_get_config($svn_config_dir),
-		tree_a => "$commit^",
-		tree_b => "$commit",
-		editor_cb => sub { print "Committed r$_[0]\n"; },
-		mergeinfo => "/branches/foo:1-10",
-		svn_path => "trunk"
-	);
-	Git::SVN::Editor->new(\%opts)->apply_diff or print "No changes\n";
-
-	my $re = Git::SVN::Editor::glob2pat("trunk/*");
-	if ($branchname =~ /$re/) {
-		print "matched!\n";
-	}
-
-=head1 DESCRIPTION
-
-This module is an implementation detail of the "git svn" command.
-Do not use it unless you are developing git-svn.
-
-This module adapts the C<SVN::Delta::Editor> object returned by
-C<SVN::Delta::get_commit_editor> and drives it to convey the
-difference between two git tree objects to a remote Subversion
-repository.
-
-The interface will change as git-svn evolves.
-
-=head1 DEPENDENCIES
-
-Subversion perl bindings,
-the core L<Carp> module,
-and git's L<Git> helper module.
-
-C<Git::SVN::Editor> has not been tested using callers other than
-B<git-svn> itself.
-
-=head1 SEE ALSO
-
-L<SVN::Delta>,
-L<Git::SVN::Fetcher>.
-
-=head1 INCOMPATIBILITIES
-
-None reported.
-
-=head1 BUGS
-
-None.
diff --git a/third_party/git/perl/Git/SVN/Fetcher.pm b/third_party/git/perl/Git/SVN/Fetcher.pm
deleted file mode 100644
index 729e5337df7a..000000000000
--- a/third_party/git/perl/Git/SVN/Fetcher.pm
+++ /dev/null
@@ -1,622 +0,0 @@
-package Git::SVN::Fetcher;
-use vars qw/@ISA $_ignore_regex $_include_regex $_preserve_empty_dirs
-            $_placeholder_filename @deleted_gpath %added_placeholder
-            $repo_id/;
-use strict;
-use warnings;
-use SVN::Delta;
-use Carp qw/croak/;
-use File::Basename qw/dirname/;
-use Git qw/command command_oneline command_noisy command_output_pipe
-           command_input_pipe command_close_pipe
-           command_bidi_pipe command_close_bidi_pipe
-           get_record/;
-BEGIN {
-	@ISA = qw(SVN::Delta::Editor);
-}
-
-# file baton members: path, mode_a, mode_b, pool, fh, blob, base
-sub new {
-	my ($class, $git_svn, $switch_path) = @_;
-	my $self = SVN::Delta::Editor->new;
-	bless $self, $class;
-	if (exists $git_svn->{last_commit}) {
-		$self->{c} = $git_svn->{last_commit};
-		$self->{empty_symlinks} =
-		                  _mark_empty_symlinks($git_svn, $switch_path);
-	}
-
-	# some options are read globally, but can be overridden locally
-	# per [svn-remote "..."] section.  Command-line options will *NOT*
-	# override options set in an [svn-remote "..."] section
-	$repo_id = $git_svn->{repo_id};
-	my $k = "svn-remote.$repo_id.ignore-paths";
-	my $v = eval { command_oneline('config', '--get', $k) };
-	$self->{ignore_regex} = $v;
-
-	$k = "svn-remote.$repo_id.include-paths";
-	$v = eval { command_oneline('config', '--get', $k) };
-	$self->{include_regex} = $v;
-
-	$k = "svn-remote.$repo_id.preserve-empty-dirs";
-	$v = eval { command_oneline('config', '--get', '--bool', $k) };
-	if ($v && $v eq 'true') {
-		$_preserve_empty_dirs = 1;
-		$k = "svn-remote.$repo_id.placeholder-filename";
-		$v = eval { command_oneline('config', '--get', $k) };
-		$_placeholder_filename = $v;
-	}
-
-	# Load the list of placeholder files added during previous invocations.
-	$k = "svn-remote.$repo_id.added-placeholder";
-	$v = eval { command_oneline('config', '--get-all', $k) };
-	if ($_preserve_empty_dirs && $v) {
-		# command() prints errors to stderr, so we only call it if
-		# command_oneline() succeeded.
-		my @v = command('config', '--get-all', $k);
-		$added_placeholder{ dirname($_) } = $_ foreach @v;
-	}
-
-	$self->{empty} = {};
-	$self->{dir_prop} = {};
-	$self->{file_prop} = {};
-	$self->{absent_dir} = {};
-	$self->{absent_file} = {};
-	require Git::IndexInfo;
-	$self->{gii} = $git_svn->tmp_index_do(sub { Git::IndexInfo->new });
-	$self->{pathnameencoding} = Git::config('svn.pathnameencoding');
-	$self;
-}
-
-# this uses the Ra object, so it must be called before do_{switch,update},
-# not inside them (when the Git::SVN::Fetcher object is passed) to
-# do_{switch,update}
-sub _mark_empty_symlinks {
-	my ($git_svn, $switch_path) = @_;
-	my $bool = Git::config_bool('svn.brokenSymlinkWorkaround');
-	return {} if (!defined($bool)) || (defined($bool) && ! $bool);
-
-	my %ret;
-	my ($rev, $cmt) = $git_svn->last_rev_commit;
-	return {} unless ($rev && $cmt);
-
-	# allow the warning to be printed for each revision we fetch to
-	# ensure the user sees it.  The user can also disable the workaround
-	# on the repository even while git svn is running and the next
-	# revision fetched will skip this expensive function.
-	my $printed_warning;
-	chomp(my $empty_blob = `git hash-object -t blob --stdin < /dev/null`);
-	my ($ls, $ctx) = command_output_pipe(qw/ls-tree -r -z/, $cmt);
-	my $pfx = defined($switch_path) ? $switch_path : $git_svn->path;
-	$pfx .= '/' if length($pfx);
-	while (defined($_ = get_record($ls, "\0"))) {
-		s/\A100644 blob $empty_blob\t//o or next;
-		unless ($printed_warning) {
-			print STDERR "Scanning for empty symlinks, ",
-			             "this may take a while if you have ",
-				     "many empty files\n",
-				     "You may disable this with `",
-				     "git config svn.brokenSymlinkWorkaround ",
-				     "false'.\n",
-				     "This may be done in a different ",
-				     "terminal without restarting ",
-				     "git svn\n";
-			$printed_warning = 1;
-		}
-		my $path = $_;
-		my (undef, $props) =
-		               $git_svn->ra->get_file($pfx.$path, $rev, undef);
-		if ($props->{'svn:special'}) {
-			$ret{$path} = 1;
-		}
-	}
-	command_close_pipe($ls, $ctx);
-	\%ret;
-}
-
-# returns true if a given path is inside a ".git" directory
-sub in_dot_git {
-	$_[0] =~ m{(?:^|/)\.git(?:/|$)};
-}
-
-# return value: 0 -- don't ignore, 1 -- ignore
-# This will also check whether the path is explicitly included
-sub is_path_ignored {
-	my ($self, $path) = @_;
-	return 1 if in_dot_git($path);
-	return 1 if defined($self->{ignore_regex}) &&
-	            $path =~ m!$self->{ignore_regex}!;
-	return 0 if defined($self->{include_regex}) &&
-	            $path =~ m!$self->{include_regex}!;
-	return 0 if defined($_include_regex) &&
-	            $path =~ m!$_include_regex!;
-	return 1 if defined($self->{include_regex});
-	return 1 if defined($_include_regex);
-	return 0 unless defined($_ignore_regex);
-	return 1 if $path =~ m!$_ignore_regex!o;
-	return 0;
-}
-
-sub set_path_strip {
-	my ($self, $path) = @_;
-	$self->{path_strip} = qr/^\Q$path\E(\/|$)/ if length $path;
-}
-
-sub open_root {
-	{ path => '' };
-}
-
-sub open_directory {
-	my ($self, $path, $pb, $rev) = @_;
-	{ path => $path };
-}
-
-sub git_path {
-	my ($self, $path) = @_;
-	if (my $enc = $self->{pathnameencoding}) {
-		require Encode;
-		Encode::from_to($path, 'UTF-8', $enc);
-	}
-	if ($self->{path_strip}) {
-		$path =~ s!$self->{path_strip}!! or
-		  die "Failed to strip path '$path' ($self->{path_strip})\n";
-	}
-	$path;
-}
-
-sub delete_entry {
-	my ($self, $path, $rev, $pb) = @_;
-	return undef if $self->is_path_ignored($path);
-
-	my $gpath = $self->git_path($path);
-	return undef if ($gpath eq '');
-
-	# remove entire directories.
-	my ($tree) = (command('ls-tree', '-z', $self->{c}, "./$gpath")
-	                 =~ /\A040000 tree ($::oid)\t\Q$gpath\E\0/);
-	if ($tree) {
-		my ($ls, $ctx) = command_output_pipe(qw/ls-tree
-		                                     -r --name-only -z/,
-				                     $tree);
-		while (defined($_ = get_record($ls, "\0"))) {
-			my $rmpath = "$gpath/$_";
-			$self->{gii}->remove($rmpath);
-			print "\tD\t$rmpath\n" unless $::_q;
-		}
-		print "\tD\t$gpath/\n" unless $::_q;
-		command_close_pipe($ls, $ctx);
-	} else {
-		$self->{gii}->remove($gpath);
-		print "\tD\t$gpath\n" unless $::_q;
-	}
-	# Don't add to @deleted_gpath if we're deleting a placeholder file.
-	push @deleted_gpath, $gpath unless $added_placeholder{dirname($path)};
-	$self->{empty}->{$path} = 0;
-	undef;
-}
-
-sub open_file {
-	my ($self, $path, $pb, $rev) = @_;
-	my ($mode, $blob);
-
-	goto out if $self->is_path_ignored($path);
-
-	my $gpath = $self->git_path($path);
-	($mode, $blob) = (command('ls-tree', '-z', $self->{c}, "./$gpath")
-	                     =~ /\A(\d{6}) blob ($::oid)\t\Q$gpath\E\0/);
-	unless (defined $mode && defined $blob) {
-		die "$path was not found in commit $self->{c} (r$rev)\n";
-	}
-	if ($mode eq '100644' && $self->{empty_symlinks}->{$path}) {
-		$mode = '120000';
-	}
-out:
-	{ path => $path, mode_a => $mode, mode_b => $mode, blob => $blob,
-	  pool => SVN::Pool->new, action => 'M' };
-}
-
-sub add_file {
-	my ($self, $path, $pb, $cp_path, $cp_rev) = @_;
-	my $mode;
-
-	if (!$self->is_path_ignored($path)) {
-		my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
-		delete $self->{empty}->{$dir};
-		$mode = '100644';
-
-		if ($added_placeholder{$dir}) {
-			# Remove our placeholder file, if we created one.
-			delete_entry($self, $added_placeholder{$dir})
-				unless $path eq $added_placeholder{$dir};
-			delete $added_placeholder{$dir}
-		}
-	}
-
-	{ path => $path, mode_a => $mode, mode_b => $mode,
-	  pool => SVN::Pool->new, action => 'A' };
-}
-
-sub add_directory {
-	my ($self, $path, $cp_path, $cp_rev) = @_;
-	goto out if $self->is_path_ignored($path);
-	my $gpath = $self->git_path($path);
-	if ($gpath eq '') {
-		my ($ls, $ctx) = command_output_pipe(qw/ls-tree
-		                                     -r --name-only -z/,
-				                     $self->{c});
-		while (defined($_ = get_record($ls, "\0"))) {
-			$self->{gii}->remove($_);
-			print "\tD\t$_\n" unless $::_q;
-			push @deleted_gpath, $gpath;
-		}
-		command_close_pipe($ls, $ctx);
-		$self->{empty}->{$path} = 0;
-	}
-	my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
-	delete $self->{empty}->{$dir};
-	$self->{empty}->{$path} = 1;
-
-	if ($added_placeholder{$dir}) {
-		# Remove our placeholder file, if we created one.
-		delete_entry($self, $added_placeholder{$dir});
-		delete $added_placeholder{$dir}
-	}
-
-out:
-	{ path => $path };
-}
-
-sub change_dir_prop {
-	my ($self, $db, $prop, $value) = @_;
-	return undef if $self->is_path_ignored($db->{path});
-	$self->{dir_prop}->{$db->{path}} ||= {};
-	$self->{dir_prop}->{$db->{path}}->{$prop} = $value;
-	undef;
-}
-
-sub absent_directory {
-	my ($self, $path, $pb) = @_;
-	return undef if $self->is_path_ignored($path);
-	$self->{absent_dir}->{$pb->{path}} ||= [];
-	push @{$self->{absent_dir}->{$pb->{path}}}, $path;
-	undef;
-}
-
-sub absent_file {
-	my ($self, $path, $pb) = @_;
-	return undef if $self->is_path_ignored($path);
-	$self->{absent_file}->{$pb->{path}} ||= [];
-	push @{$self->{absent_file}->{$pb->{path}}}, $path;
-	undef;
-}
-
-sub change_file_prop {
-	my ($self, $fb, $prop, $value) = @_;
-	return undef if $self->is_path_ignored($fb->{path});
-	if ($prop eq 'svn:executable') {
-		if ($fb->{mode_b} != 120000) {
-			$fb->{mode_b} = defined $value ? 100755 : 100644;
-		}
-	} elsif ($prop eq 'svn:special') {
-		$fb->{mode_b} = defined $value ? 120000 : 100644;
-	} else {
-		$self->{file_prop}->{$fb->{path}} ||= {};
-		$self->{file_prop}->{$fb->{path}}->{$prop} = $value;
-	}
-	undef;
-}
-
-sub apply_textdelta {
-	my ($self, $fb, $exp) = @_;
-	return undef if $self->is_path_ignored($fb->{path});
-	my $suffix = 0;
-	++$suffix while $::_repository->temp_is_locked("svn_delta_${$}_$suffix");
-	my $fh = $::_repository->temp_acquire("svn_delta_${$}_$suffix");
-	# $fh gets auto-closed() by SVN::TxDelta::apply(),
-	# (but $base does not,) so dup() it for reading in close_file
-	open my $dup, '<&', $fh or croak $!;
-	my $base = $::_repository->temp_acquire("git_blob_${$}_$suffix");
-	# close_file may call temp_acquire on 'svn_hash', but because of the
-	# call chain, if the temp_acquire call from close_file ends up being the
-	# call that first creates the 'svn_hash' temp file, then the FileHandle
-	# that's created as a result will end up in an SVN::Pool that we clear
-	# in SVN::Ra::gs_fetch_loop_common.  Avoid that by making sure the
-	# 'svn_hash' FileHandle is already created before close_file is called.
-	my $tmp_fh = $::_repository->temp_acquire('svn_hash');
-	$::_repository->temp_release($tmp_fh, 1);
-
-	if ($fb->{blob}) {
-		my ($base_is_link, $size);
-
-		if ($fb->{mode_a} eq '120000' &&
-		    ! $self->{empty_symlinks}->{$fb->{path}}) {
-			print $base 'link ' or die "print $!\n";
-			$base_is_link = 1;
-		}
-	retry:
-		$size = $::_repository->cat_blob($fb->{blob}, $base);
-		die "Failed to read object $fb->{blob}" if ($size < 0);
-
-		if (defined $exp) {
-			seek $base, 0, 0 or croak $!;
-			my $got = ::md5sum($base);
-			if ($got ne $exp) {
-				my $err = "Checksum mismatch: ".
-				       "$fb->{path} $fb->{blob}\n" .
-				       "expected: $exp\n" .
-				       "     got: $got\n";
-				if ($base_is_link) {
-					warn $err,
-					     "Retrying... (possibly ",
-					     "a bad symlink from SVN)\n";
-					$::_repository->temp_reset($base);
-					$base_is_link = 0;
-					goto retry;
-				}
-				die $err;
-			}
-		}
-	}
-	seek $base, 0, 0 or croak $!;
-	$fb->{fh} = $fh;
-	$fb->{base} = $base;
-	[ SVN::TxDelta::apply($base, $dup, undef, $fb->{path}, $fb->{pool}) ];
-}
-
-sub close_file {
-	my ($self, $fb, $exp) = @_;
-	return undef if $self->is_path_ignored($fb->{path});
-
-	my $hash;
-	my $path = $self->git_path($fb->{path});
-	if (my $fh = $fb->{fh}) {
-		if (defined $exp) {
-			seek($fh, 0, 0) or croak $!;
-			my $got = ::md5sum($fh);
-			if ($got ne $exp) {
-				die "Checksum mismatch: $path\n",
-				    "expected: $exp\n    got: $got\n";
-			}
-		}
-		if ($fb->{mode_b} == 120000) {
-			sysseek($fh, 0, 0) or croak $!;
-			my $rd = sysread($fh, my $buf, 5);
-
-			if (!defined $rd) {
-				croak "sysread: $!\n";
-			} elsif ($rd == 0) {
-				warn "$path has mode 120000",
-				     " but it points to nothing\n",
-				     "converting to an empty file with mode",
-				     " 100644\n";
-				$fb->{mode_b} = '100644';
-			} elsif ($buf ne 'link ') {
-				warn "$path has mode 120000",
-				     " but is not a link\n";
-			} else {
-				my $tmp_fh = $::_repository->temp_acquire(
-					'svn_hash');
-				my $res;
-				while ($res = sysread($fh, my $str, 1024)) {
-					my $out = syswrite($tmp_fh, $str, $res);
-					defined($out) && $out == $res
-						or croak("write ",
-							Git::temp_path($tmp_fh),
-							": $!\n");
-				}
-				defined $res or croak $!;
-
-				($fh, $tmp_fh) = ($tmp_fh, $fh);
-				Git::temp_release($tmp_fh, 1);
-			}
-		}
-
-		$hash = $::_repository->hash_and_insert_object(
-				Git::temp_path($fh));
-		$hash =~ /^$::oid$/ or die "not an object ID: $hash\n";
-
-		Git::temp_release($fb->{base}, 1);
-		Git::temp_release($fh, 1);
-	} else {
-		$hash = $fb->{blob} or die "no blob information\n";
-	}
-	$fb->{pool}->clear;
-	$self->{gii}->update($fb->{mode_b}, $hash, $path) or croak $!;
-	print "\t$fb->{action}\t$path\n" if $fb->{action} && ! $::_q;
-	undef;
-}
-
-sub abort_edit {
-	my $self = shift;
-	$self->{nr} = $self->{gii}->{nr};
-	delete $self->{gii};
-	$self->SUPER::abort_edit(@_);
-}
-
-sub close_edit {
-	my $self = shift;
-
-	if ($_preserve_empty_dirs) {
-		my @empty_dirs;
-
-		# Any entry flagged as empty that also has an associated
-		# dir_prop represents a newly created empty directory.
-		foreach my $i (keys %{$self->{empty}}) {
-			push @empty_dirs, $i if exists $self->{dir_prop}->{$i};
-		}
-
-		# Search for directories that have become empty due subsequent
-		# file deletes.
-		push @empty_dirs, $self->find_empty_directories();
-
-		# Finally, add a placeholder file to each empty directory.
-		$self->add_placeholder_file($_) foreach (@empty_dirs);
-
-		$self->stash_placeholder_list();
-	}
-
-	$self->{git_commit_ok} = 1;
-	$self->{nr} = $self->{gii}->{nr};
-	delete $self->{gii};
-	$self->SUPER::close_edit(@_);
-}
-
-sub find_empty_directories {
-	my ($self) = @_;
-	my @empty_dirs;
-	my %dirs = map { dirname($_) => 1 } @deleted_gpath;
-
-	foreach my $dir (sort keys %dirs) {
-		next if $dir eq ".";
-
-		# If there have been any additions to this directory, there is
-		# no reason to check if it is empty.
-		my $skip_added = 0;
-		foreach my $t (qw/dir_prop file_prop/) {
-			foreach my $path (keys %{ $self->{$t} }) {
-				if (exists $self->{$t}->{dirname($path)}) {
-					$skip_added = 1;
-					last;
-				}
-			}
-			last if $skip_added;
-		}
-		next if $skip_added;
-
-		# Use `git ls-tree` to get the filenames of this directory
-		# that existed prior to this particular commit.
-		my $ls = command('ls-tree', '-z', '--name-only',
-				 $self->{c}, "$dir/");
-		my %files = map { $_ => 1 } split(/\0/, $ls);
-
-		# Remove the filenames that were deleted during this commit.
-		delete $files{$_} foreach (@deleted_gpath);
-
-		# Report the directory if there are no filenames left.
-		push @empty_dirs, $dir unless (scalar %files);
-	}
-	@empty_dirs;
-}
-
-sub add_placeholder_file {
-	my ($self, $dir) = @_;
-	my $path = "$dir/$_placeholder_filename";
-	my $gpath = $self->git_path($path);
-
-	my $fh = $::_repository->temp_acquire($gpath);
-	my $hash = $::_repository->hash_and_insert_object(Git::temp_path($fh));
-	Git::temp_release($fh, 1);
-	$self->{gii}->update('100644', $hash, $gpath) or croak $!;
-
-	# The directory should no longer be considered empty.
-	delete $self->{empty}->{$dir} if exists $self->{empty}->{$dir};
-
-	# Keep track of any placeholder files we create.
-	$added_placeholder{$dir} = $path;
-}
-
-sub stash_placeholder_list {
-	my ($self) = @_;
-	my $k = "svn-remote.$repo_id.added-placeholder";
-	my $v = eval { command_oneline('config', '--get-all', $k) };
-	command_noisy('config', '--unset-all', $k) if $v;
-	foreach (values %added_placeholder) {
-		command_noisy('config', '--add', $k, $_);
-	}
-}
-
-1;
-__END__
-
-=head1 NAME
-
-Git::SVN::Fetcher - tree delta consumer for "git svn fetch"
-
-=head1 SYNOPSIS
-
-    use SVN::Core;
-    use SVN::Ra;
-    use Git::SVN;
-    use Git::SVN::Fetcher;
-    use Git;
-
-    my $gs = Git::SVN->find_by_url($url);
-    my $ra = SVN::Ra->new(url => $url);
-    my $editor = Git::SVN::Fetcher->new($gs);
-    my $reporter = $ra->do_update($SVN::Core::INVALID_REVNUM, '',
-                                  1, $editor);
-    $reporter->set_path('', $old_rev, 0);
-    $reporter->finish_report;
-    my $tree = $gs->tmp_index_do(sub { command_oneline('write-tree') });
-
-    foreach my $path (keys %{$editor->{dir_prop}) {
-        my $props = $editor->{dir_prop}{$path};
-        foreach my $prop (keys %$props) {
-            print "property $prop at $path changed to $props->{$prop}\n";
-        }
-    }
-    foreach my $path (keys %{$editor->{empty}) {
-        my $action = $editor->{empty}{$path} ? 'added' : 'removed';
-        print "empty directory $path $action\n";
-    }
-    foreach my $path (keys %{$editor->{file_prop}) { ... }
-    foreach my $parent (keys %{$editor->{absent_dir}}) {
-        my @children = @{$editor->{abstent_dir}{$parent}};
-        print "cannot fetch directory $parent/$_: not authorized?\n"
-            foreach @children;
-    }
-    foreach my $parent (keys %{$editor->{absent_file}) { ... }
-
-=head1 DESCRIPTION
-
-This is a subclass of C<SVN::Delta::Editor>, which means it implements
-callbacks to act as a consumer of Subversion tree deltas.  This
-particular implementation of those callbacks is meant to store
-information about the resulting content which B<git svn fetch> could
-use to populate new commits and new entries for F<unhandled.log>.
-More specifically:
-
-=over
-
-=item * Additions, removals, and modifications of files are propagated
-to git-svn's index file F<$GIT_DIR/svn/$refname/index> using
-B<git update-index>.
-
-=item * Changes in Subversion path properties are recorded in the
-C<dir_prop> and C<file_prop> fields (which are hashes).
-
-=item * Addition and removal of empty directories are indicated by
-entries with value 1 and 0 respectively in the C<empty> hash.
-
-=item * Paths that are present but cannot be conveyed (presumably due
-to permissions) are recorded in the C<absent_file> and
-C<absent_dirs> hashes.  For each key, the corresponding value is
-a list of paths under that directory that were present but
-could not be conveyed.
-
-=back
-
-The interface is unstable.  Do not use this module unless you are
-developing git-svn.
-
-=head1 DEPENDENCIES
-
-L<SVN::Delta> from the Subversion perl bindings,
-the core L<Carp> and L<File::Basename> modules,
-and git's L<Git> helper module.
-
-C<Git::SVN::Fetcher> has not been tested using callers other than
-B<git-svn> itself.
-
-=head1 SEE ALSO
-
-L<SVN::Delta>,
-L<Git::SVN::Editor>.
-
-=head1 INCOMPATIBILITIES
-
-None reported.
-
-=head1 BUGS
-
-None.
diff --git a/third_party/git/perl/Git/SVN/GlobSpec.pm b/third_party/git/perl/Git/SVN/GlobSpec.pm
deleted file mode 100644
index a0a8d1762150..000000000000
--- a/third_party/git/perl/Git/SVN/GlobSpec.pm
+++ /dev/null
@@ -1,65 +0,0 @@
-package Git::SVN::GlobSpec;
-use strict;
-use warnings;
-
-sub new {
-	my ($class, $glob, $pattern_ok) = @_;
-	my $re = $glob;
-	$re =~ s!/+$!!g; # no need for trailing slashes
-	my (@left, @right, @patterns);
-	my $state = "left";
-	my $die_msg = "Only one set of wildcards " .
-				"(e.g. '*' or '*/*/*') is supported: $glob\n";
-	for my $part (split(m|/|, $glob)) {
-		if ($pattern_ok && $part =~ /[{}]/ &&
-			 $part !~ /^\{[^{}]+\}/) {
-			die "Invalid pattern in '$glob': $part\n";
-		}
-		my $nstars = $part =~ tr/*//;
-		if ($nstars > 1) {
-			die "Only one '*' is allowed in a pattern: '$part'\n";
-		}
-		if ($part =~ /(.*)\*(.*)/) {
-			die $die_msg if $state eq "right";
-			my ($l, $r) = ($1, $2);
-			$state = "pattern";
-			my $pat = quotemeta($l) . '[^/]*' . quotemeta($r);
-			push(@patterns, $pat);
-		} elsif ($pattern_ok && $part =~ /^\{(.*)\}$/) {
-			die $die_msg if $state eq "right";
-			$state = "pattern";
-			my $p = quotemeta($1);
-			$p =~ s/\\,/|/g;
-			push(@patterns, "(?:$p)");
-		} else {
-			if ($state eq "left") {
-				push(@left, $part);
-			} else {
-				push(@right, $part);
-				$state = "right";
-			}
-		}
-	}
-	my $depth = @patterns;
-	if ($depth == 0) {
-		die "One '*' is needed in glob: '$glob'\n";
-	}
-	my $left = join('/', @left);
-	my $right = join('/', @right);
-	$re = join('/', @patterns);
-	$re = join('\/',
-		   grep(length, quotemeta($left),
-                                "($re)(?=/|\$)",
-                                quotemeta($right)));
-	my $left_re = qr/^\/\Q$left\E(\/|$)/;
-	bless { left => $left, right => $right, left_regex => $left_re,
-	        regex => qr/$re/, glob => $glob, depth => $depth }, $class;
-}
-
-sub full_path {
-	my ($self, $path) = @_;
-	return (length $self->{left} ? "$self->{left}/" : '') .
-	       $path . (length $self->{right} ? "/$self->{right}" : '');
-}
-
-1;
diff --git a/third_party/git/perl/Git/SVN/Log.pm b/third_party/git/perl/Git/SVN/Log.pm
deleted file mode 100644
index 3858fcf27dee..000000000000
--- a/third_party/git/perl/Git/SVN/Log.pm
+++ /dev/null
@@ -1,400 +0,0 @@
-package Git::SVN::Log;
-use strict;
-use warnings;
-use Git::SVN::Utils qw(fatal);
-use Git qw(command
-           command_oneline
-           command_output_pipe
-           command_close_pipe
-           get_tz_offset);
-use POSIX qw/strftime/;
-use constant commit_log_separator => ('-' x 72) . "\n";
-use vars qw/$TZ $limit $color $pager $non_recursive $verbose $oneline
-            %rusers $show_commit $incremental/;
-
-# Option set in git-svn
-our $_git_format;
-
-sub cmt_showable {
-	my ($c) = @_;
-	return 1 if defined $c->{r};
-
-	# big commit message got truncated by the 16k pretty buffer in rev-list
-	if ($c->{l} && $c->{l}->[-1] eq "...\n" &&
-				$c->{a_raw} =~ /\@([a-f\d\-]+)>$/) {
-		@{$c->{l}} = ();
-		my @log = command(qw/cat-file commit/, $c->{c});
-
-		# shift off the headers
-		shift @log while ($log[0] ne '');
-		shift @log;
-
-		# TODO: make $c->{l} not have a trailing newline in the future
-		@{$c->{l}} = map { "$_\n" } grep !/^git-svn-id: /, @log;
-
-		(undef, $c->{r}, undef) = ::extract_metadata(
-				(grep(/^git-svn-id: /, @log))[-1]);
-	}
-	return defined $c->{r};
-}
-
-sub log_use_color {
-	return $color || Git->repository->get_colorbool('color.diff');
-}
-
-sub git_svn_log_cmd {
-	my ($r_min, $r_max, @args) = @_;
-	my $head = 'HEAD';
-	my (@files, @log_opts);
-	foreach my $x (@args) {
-		if ($x eq '--' || @files) {
-			push @files, $x;
-		} else {
-			if (::verify_ref("$x^0")) {
-				$head = $x;
-			} else {
-				push @log_opts, $x;
-			}
-		}
-	}
-
-	my ($url, $rev, $uuid, $gs) = ::working_head_info($head);
-
-	require Git::SVN;
-	$gs ||= Git::SVN->_new;
-	my @cmd = (qw/log --abbrev-commit --pretty=raw --default/,
-	           $gs->refname);
-	push @cmd, '-r' unless $non_recursive;
-	push @cmd, qw/--raw --name-status/ if $verbose;
-	push @cmd, '--color' if log_use_color();
-	push @cmd, @log_opts;
-	if (defined $r_max && $r_max == $r_min) {
-		push @cmd, '--max-count=1';
-		if (my $c = $gs->rev_map_get($r_max)) {
-			push @cmd, $c;
-		}
-	} elsif (defined $r_max) {
-		if ($r_max < $r_min) {
-			($r_min, $r_max) = ($r_max, $r_min);
-		}
-		my (undef, $c_max) = $gs->find_rev_before($r_max, 1, $r_min);
-		my (undef, $c_min) = $gs->find_rev_after($r_min, 1, $r_max);
-		# If there are no commits in the range, both $c_max and $c_min
-		# will be undefined.  If there is at least 1 commit in the
-		# range, both will be defined.
-		return () if !defined $c_min || !defined $c_max;
-		if ($c_min eq $c_max) {
-			push @cmd, '--max-count=1', $c_min;
-		} else {
-			push @cmd, '--boundary', "$c_min..$c_max";
-		}
-	}
-	return (@cmd, @files);
-}
-
-# adapted from pager.c
-sub config_pager {
-	if (! -t *STDOUT) {
-		$ENV{GIT_PAGER_IN_USE} = 'false';
-		$pager = undef;
-		return;
-	}
-	chomp($pager = command_oneline(qw(var GIT_PAGER)));
-	if ($pager eq 'cat') {
-		$pager = undef;
-	}
-	$ENV{GIT_PAGER_IN_USE} = defined($pager);
-}
-
-sub run_pager {
-	return unless defined $pager;
-	pipe my ($rfd, $wfd) or return;
-	defined(my $pid = fork) or fatal "Can't fork: $!";
-	if (!$pid) {
-		open STDOUT, '>&', $wfd or
-		                     fatal "Can't redirect to stdout: $!";
-		return;
-	}
-	open STDIN, '<&', $rfd or fatal "Can't redirect stdin: $!";
-	$ENV{LESS} ||= 'FRX';
-	$ENV{LV} ||= '-c';
-	exec $pager or fatal "Can't run pager: $! ($pager)";
-}
-
-sub format_svn_date {
-	my $t = shift || time;
-	require Git::SVN;
-	my $gmoff = get_tz_offset($t);
-	return strftime("%Y-%m-%d %H:%M:%S $gmoff (%a, %d %b %Y)", localtime($t));
-}
-
-sub parse_git_date {
-	my ($t, $tz) = @_;
-	# Date::Parse isn't in the standard Perl distro :(
-	if ($tz =~ s/^\+//) {
-		$t += tz_to_s_offset($tz);
-	} elsif ($tz =~ s/^\-//) {
-		$t -= tz_to_s_offset($tz);
-	}
-	return $t;
-}
-
-sub set_local_timezone {
-	if (defined $TZ) {
-		$ENV{TZ} = $TZ;
-	} else {
-		delete $ENV{TZ};
-	}
-}
-
-sub tz_to_s_offset {
-	my ($tz) = @_;
-	$tz =~ s/(\d\d)$//;
-	return ($1 * 60) + ($tz * 3600);
-}
-
-sub get_author_info {
-	my ($dest, $author, $t, $tz) = @_;
-	$author =~ s/(?:^\s*|\s*$)//g;
-	$dest->{a_raw} = $author;
-	my $au;
-	if ($::_authors) {
-		$au = $rusers{$author} || undef;
-	}
-	if (!$au) {
-		($au) = ($author =~ /<([^>]+)\@[^>]+>$/);
-	}
-	$dest->{t} = $t;
-	$dest->{tz} = $tz;
-	$dest->{a} = $au;
-	$dest->{t_utc} = parse_git_date($t, $tz);
-}
-
-sub process_commit {
-	my ($c, $r_min, $r_max, $defer) = @_;
-	if (defined $r_min && defined $r_max) {
-		if ($r_min == $c->{r} && $r_min == $r_max) {
-			show_commit($c);
-			return 0;
-		}
-		return 1 if $r_min == $r_max;
-		if ($r_min < $r_max) {
-			# we need to reverse the print order
-			return 0 if (defined $limit && --$limit < 0);
-			push @$defer, $c;
-			return 1;
-		}
-		if ($r_min != $r_max) {
-			return 1 if ($r_min < $c->{r});
-			return 1 if ($r_max > $c->{r});
-		}
-	}
-	return 0 if (defined $limit && --$limit < 0);
-	show_commit($c);
-	return 1;
-}
-
-my $l_fmt;
-sub show_commit {
-	my $c = shift;
-	if ($oneline) {
-		my $x = "\n";
-		if (my $l = $c->{l}) {
-			while ($l->[0] =~ /^\s*$/) { shift @$l }
-			$x = $l->[0];
-		}
-		$l_fmt ||= 'A' . length($c->{r});
-		print 'r',pack($l_fmt, $c->{r}),' | ';
-		print "$c->{c} | " if $show_commit;
-		print $x;
-	} else {
-		show_commit_normal($c);
-	}
-}
-
-sub show_commit_changed_paths {
-	my ($c) = @_;
-	return unless $c->{changed};
-	print "Changed paths:\n", @{$c->{changed}};
-}
-
-sub show_commit_normal {
-	my ($c) = @_;
-	print commit_log_separator, "r$c->{r} | ";
-	print "$c->{c} | " if $show_commit;
-	print "$c->{a} | ", format_svn_date($c->{t_utc}), ' | ';
-	my $nr_line = 0;
-
-	if (my $l = $c->{l}) {
-		while ($l->[$#$l] eq "\n" && $#$l > 0
-		                          && $l->[($#$l - 1)] eq "\n") {
-			pop @$l;
-		}
-		$nr_line = scalar @$l;
-		if (!$nr_line) {
-			print "1 line\n\n\n";
-		} else {
-			if ($nr_line == 1) {
-				$nr_line = '1 line';
-			} else {
-				$nr_line .= ' lines';
-			}
-			print $nr_line, "\n";
-			show_commit_changed_paths($c);
-			print "\n";
-			print $_ foreach @$l;
-		}
-	} else {
-		print "1 line\n";
-		show_commit_changed_paths($c);
-		print "\n";
-
-	}
-	foreach my $x (qw/raw stat diff/) {
-		if ($c->{$x}) {
-			print "\n";
-			print $_ foreach @{$c->{$x}}
-		}
-	}
-}
-
-sub cmd_show_log {
-	my (@args) = @_;
-	my ($r_min, $r_max);
-	my $r_last = -1; # prevent dupes
-	set_local_timezone();
-	if (defined $::_revision) {
-		if ($::_revision =~ /^(\d+):(\d+)$/) {
-			($r_min, $r_max) = ($1, $2);
-		} elsif ($::_revision =~ /^\d+$/) {
-			$r_min = $r_max = $::_revision;
-		} else {
-			fatal "-r$::_revision is not supported, use ",
-				"standard 'git log' arguments instead";
-		}
-	}
-
-	config_pager();
-	@args = git_svn_log_cmd($r_min, $r_max, @args);
-	if (!@args) {
-		print commit_log_separator unless $incremental || $oneline;
-		return;
-	}
-	my $log = command_output_pipe(@args);
-	run_pager();
-	my (@k, $c, $d, $stat);
-	my $esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/;
-	while (<$log>) {
-		if (/^${esc_color}commit (?:- )?($::oid_short)/o) {
-			my $cmt = $1;
-			if ($c && cmt_showable($c) && $c->{r} != $r_last) {
-				$r_last = $c->{r};
-				process_commit($c, $r_min, $r_max, \@k) or
-								goto out;
-			}
-			$d = undef;
-			$c = { c => $cmt };
-		} elsif (/^${esc_color}author (.+) (\d+) ([\-\+]?\d+)$/o) {
-			get_author_info($c, $1, $2, $3);
-		} elsif (/^${esc_color}(?:tree|parent|committer) /o) {
-			# ignore
-		} elsif (/^${esc_color}:\d{6} \d{6} $::sha1_short/o) {
-			push @{$c->{raw}}, $_;
-		} elsif (/^${esc_color}[ACRMDT]\t/) {
-			# we could add $SVN->{svn_path} here, but that requires
-			# remote access at the moment (repo_path_split)...
-			s#^(${esc_color})([ACRMDT])\t#$1   $2 #o;
-			push @{$c->{changed}}, $_;
-		} elsif (/^${esc_color}diff /o) {
-			$d = 1;
-			push @{$c->{diff}}, $_;
-		} elsif ($d) {
-			push @{$c->{diff}}, $_;
-		} elsif (/^\ .+\ \|\s*\d+\ $esc_color[\+\-]*
-		          $esc_color*[\+\-]*$esc_color$/x) {
-			$stat = 1;
-			push @{$c->{stat}}, $_;
-		} elsif ($stat && /^ \d+ files changed, \d+ insertions/) {
-			push @{$c->{stat}}, $_;
-			$stat = undef;
-		} elsif (/^${esc_color}    (git-svn-id:.+)$/o) {
-			($c->{url}, $c->{r}, undef) = ::extract_metadata($1);
-		} elsif (s/^${esc_color}    //o) {
-			push @{$c->{l}}, $_;
-		}
-	}
-	if ($c && defined $c->{r} && $c->{r} != $r_last) {
-		$r_last = $c->{r};
-		process_commit($c, $r_min, $r_max, \@k);
-	}
-	if (@k) {
-		($r_min, $r_max) = ($r_max, $r_min);
-		process_commit($_, $r_min, $r_max) foreach reverse @k;
-	}
-out:
-	close $log;
-	print commit_log_separator unless $incremental || $oneline;
-}
-
-sub cmd_blame {
-	my $path = pop;
-
-	config_pager();
-	run_pager();
-
-	my ($fh, $ctx, $rev);
-
-	if ($_git_format) {
-		($fh, $ctx) = command_output_pipe('blame', @_, $path);
-		while (my $line = <$fh>) {
-			if ($line =~ /^\^?([[:xdigit:]]+)\s/) {
-				# Uncommitted edits show up as a rev ID of
-				# all zeros, which we can't look up with
-				# cmt_metadata
-				if ($1 !~ /^0+$/) {
-					(undef, $rev, undef) =
-						::cmt_metadata($1);
-					$rev = '0' if (!$rev);
-				} else {
-					$rev = '0';
-				}
-				$rev = sprintf('%-10s', $rev);
-				$line =~ s/^\^?[[:xdigit:]]+(\s)/$rev$1/;
-			}
-			print $line;
-		}
-	} else {
-		($fh, $ctx) = command_output_pipe('blame', '-p', @_, 'HEAD',
-						  '--', $path);
-		my ($sha1);
-		my %authors;
-		my @buffer;
-		my %dsha; #distinct sha keys
-
-		while (my $line = <$fh>) {
-			push @buffer, $line;
-			if ($line =~ /^([[:xdigit:]]{40})\s\d+\s\d+/) {
-				$dsha{$1} = 1;
-			}
-		}
-
-		my $s2r = ::cmt_sha2rev_batch([keys %dsha]);
-
-		foreach my $line (@buffer) {
-			if ($line =~ /^([[:xdigit:]]{40})\s\d+\s\d+/) {
-				$rev = $s2r->{$1};
-				$rev = '0' if (!$rev)
-			}
-			elsif ($line =~ /^author (.*)/) {
-				$authors{$rev} = $1;
-				$authors{$rev} =~ s/\s/_/g;
-			}
-			elsif ($line =~ /^\t(.*)$/) {
-				printf("%6s %10s %s\n", $rev, $authors{$rev}, $1);
-			}
-		}
-	}
-	command_close_pipe($fh, $ctx);
-}
-
-1;
diff --git a/third_party/git/perl/Git/SVN/Memoize/YAML.pm b/third_party/git/perl/Git/SVN/Memoize/YAML.pm
deleted file mode 100644
index 9676b8f2f735..000000000000
--- a/third_party/git/perl/Git/SVN/Memoize/YAML.pm
+++ /dev/null
@@ -1,93 +0,0 @@
-package Git::SVN::Memoize::YAML;
-use warnings;
-use strict;
-use YAML::Any ();
-
-# based on Memoize::Storable.
-
-sub TIEHASH {
-	my $package = shift;
-	my $filename = shift;
-	my $truehash = (-e $filename) ? YAML::Any::LoadFile($filename) : {};
-	my $self = {FILENAME => $filename, H => $truehash};
-	bless $self => $package;
-}
-
-sub STORE {
-	my $self = shift;
-	$self->{H}{$_[0]} = $_[1];
-}
-
-sub FETCH {
-	my $self = shift;
-	$self->{H}{$_[0]};
-}
-
-sub EXISTS {
-	my $self = shift;
-	exists $self->{H}{$_[0]};
-}
-
-sub DESTROY {
-	my $self = shift;
-	YAML::Any::DumpFile($self->{FILENAME}, $self->{H});
-}
-
-sub SCALAR {
-	my $self = shift;
-	scalar(%{$self->{H}});
-}
-
-sub FIRSTKEY {
-	'Fake hash from Git::SVN::Memoize::YAML';
-}
-
-sub NEXTKEY {
-	undef;
-}
-
-1;
-__END__
-
-=head1 NAME
-
-Git::SVN::Memoize::YAML - store Memoized data in YAML format
-
-=head1 SYNOPSIS
-
-    use Memoize;
-    use Git::SVN::Memoize::YAML;
-
-    tie my %cache => 'Git::SVN::Memoize::YAML', $filename;
-    memoize('slow_function', SCALAR_CACHE => [HASH => \%cache]);
-    slow_function(arguments);
-
-=head1 DESCRIPTION
-
-This module provides a class that can be used to tie a hash to a
-YAML file.  The file is read when the hash is initialized and
-rewritten when the hash is destroyed.
-
-The intent is to allow L<Memoize> to back its cache with a file in
-YAML format, just like L<Memoize::Storable> allows L<Memoize> to
-back its cache with a file in Storable format.  Unlike the Storable
-format, the YAML format is platform-independent and fairly stable.
-
-Carps on error.
-
-=head1 DIAGNOSTICS
-
-See L<YAML::Any>.
-
-=head1 DEPENDENCIES
-
-L<YAML::Any> from CPAN.
-
-=head1 INCOMPATIBILITIES
-
-None reported.
-
-=head1 BUGS
-
-The entire cache is read into a Perl hash when loading the file,
-so this is not very scalable.
diff --git a/third_party/git/perl/Git/SVN/Migration.pm b/third_party/git/perl/Git/SVN/Migration.pm
deleted file mode 100644
index dc90f6a62142..000000000000
--- a/third_party/git/perl/Git/SVN/Migration.pm
+++ /dev/null
@@ -1,265 +0,0 @@
-package Git::SVN::Migration;
-# these version numbers do NOT correspond to actual version numbers
-# of git or git-svn.  They are just relative.
-#
-# v0 layout: .git/$id/info/url, refs/heads/$id-HEAD
-#
-# v1 layout: .git/$id/info/url, refs/remotes/$id
-#
-# v2 layout: .git/svn/$id/info/url, refs/remotes/$id
-#
-# v3 layout: .git/svn/$id, refs/remotes/$id
-#            - info/url may remain for backwards compatibility
-#            - this is what we migrate up to this layout automatically,
-#            - this will be used by git svn init on single branches
-# v3.1 layout (auto migrated):
-#            - .rev_db => .rev_db.$UUID, .rev_db will remain as a symlink
-#              for backwards compatibility
-#
-# v4 layout: .git/svn/$repo_id/$id, refs/remotes/$repo_id/$id
-#            - this is only created for newly multi-init-ed
-#              repositories.  Similar in spirit to the
-#              --use-separate-remotes option in git-clone (now default)
-#            - we do not automatically migrate to this (following
-#              the example set by core git)
-#
-# v5 layout: .rev_db.$UUID => .rev_map.$UUID
-#            - newer, more-efficient format that uses 24-bytes per record
-#              with no filler space.
-#            - use xxd -c24 < .rev_map.$UUID to view and debug
-#            - This is a one-way migration, repositories updated to the
-#              new format will not be able to use old git-svn without
-#              rebuilding the .rev_db.  Rebuilding the rev_db is not
-#              possible if noMetadata or useSvmProps are set; but should
-#              be no problem for users that use the (sensible) defaults.
-use strict;
-use warnings;
-use Carp qw/croak/;
-use File::Path qw/mkpath/;
-use File::Basename qw/dirname basename/;
-
-our $_minimize;
-use Git qw(
-	command
-	command_noisy
-	command_output_pipe
-	command_close_pipe
-	command_oneline
-);
-use Git::SVN;
-
-sub migrate_from_v0 {
-	my $git_dir = $ENV{GIT_DIR};
-	return undef unless -d $git_dir;
-	my ($fh, $ctx) = command_output_pipe(qw/rev-parse --symbolic --all/);
-	my $migrated = 0;
-	while (<$fh>) {
-		chomp;
-		my ($id, $orig_ref) = ($_, $_);
-		next unless $id =~ s#^refs/heads/(.+)-HEAD$#$1#;
-		my $info_url = command_oneline(qw(rev-parse --git-path),
-						"$id/info/url");
-		next unless -f $info_url;
-		my $new_ref = "refs/remotes/$id";
-		if (::verify_ref("$new_ref^0")) {
-			print STDERR "W: $orig_ref is probably an old ",
-			             "branch used by an ancient version of ",
-				     "git-svn.\n",
-				     "However, $new_ref also exists.\n",
-				     "We will not be able ",
-				     "to use this branch until this ",
-				     "ambiguity is resolved.\n";
-			next;
-		}
-		print STDERR "Migrating from v0 layout...\n" if !$migrated;
-		print STDERR "Renaming ref: $orig_ref => $new_ref\n";
-		command_noisy('update-ref', $new_ref, $orig_ref);
-		command_noisy('update-ref', '-d', $orig_ref, $orig_ref);
-		$migrated++;
-	}
-	command_close_pipe($fh, $ctx);
-	print STDERR "Done migrating from v0 layout...\n" if $migrated;
-	$migrated;
-}
-
-sub migrate_from_v1 {
-	my $git_dir = $ENV{GIT_DIR};
-	my $migrated = 0;
-	return $migrated unless -d $git_dir;
-	my $svn_dir = Git::SVN::svn_dir();
-
-	# just in case somebody used 'svn' as their $id at some point...
-	return $migrated if -d $svn_dir && ! -f "$svn_dir/info/url";
-
-	print STDERR "Migrating from a git-svn v1 layout...\n";
-	mkpath([$svn_dir]);
-	print STDERR "Data from a previous version of git-svn exists, but\n\t",
-	             "$svn_dir\n\t(required for this version ",
-	             "($::VERSION) of git-svn) does not exist.\n";
-	my ($fh, $ctx) = command_output_pipe(qw/rev-parse --symbolic --all/);
-	while (<$fh>) {
-		my $x = $_;
-		next unless $x =~ s#^refs/remotes/##;
-		chomp $x;
-		my $info_url = command_oneline(qw(rev-parse --git-path),
-						"$x/info/url");
-		next unless -f $info_url;
-		my $u = eval { ::file_to_s($info_url) };
-		next unless $u;
-		my $dn = dirname("$svn_dir/$x");
-		mkpath([$dn]) unless -d $dn;
-		if ($x eq 'svn') { # they used 'svn' as GIT_SVN_ID:
-			mkpath(["$svn_dir/svn"]);
-			print STDERR " - $git_dir/$x/info => ",
-			                "$svn_dir/$x/info\n";
-			rename "$git_dir/$x/info", "$svn_dir/$x/info" or
-			       croak "$!: $x";
-			# don't worry too much about these, they probably
-			# don't exist with repos this old (save for index,
-			# and we can easily regenerate that)
-			foreach my $f (qw/unhandled.log index .rev_db/) {
-				rename "$git_dir/$x/$f", "$svn_dir/$x/$f";
-			}
-		} else {
-			print STDERR " - $git_dir/$x => $svn_dir/$x\n";
-			rename "$git_dir/$x", "$svn_dir/$x" or croak "$!: $x";
-		}
-		$migrated++;
-	}
-	command_close_pipe($fh, $ctx);
-	print STDERR "Done migrating from a git-svn v1 layout\n";
-	$migrated;
-}
-
-sub read_old_urls {
-	my ($l_map, $pfx, $path) = @_;
-	my @dir;
-	foreach (<$path/*>) {
-		if (-r "$_/info/url") {
-			$pfx .= '/' if $pfx && $pfx !~ m!/$!;
-			my $ref_id = $pfx . basename $_;
-			my $url = ::file_to_s("$_/info/url");
-			$l_map->{$ref_id} = $url;
-		} elsif (-d $_) {
-			push @dir, $_;
-		}
-	}
-	my $svn_dir = Git::SVN::svn_dir();
-	foreach (@dir) {
-		my $x = $_;
-		$x =~ s!^\Q$svn_dir\E/!!o;
-		read_old_urls($l_map, $x, $_);
-	}
-}
-
-sub migrate_from_v2 {
-	my @cfg = command(qw/config -l/);
-	return if grep /^svn-remote\..+\.url=/, @cfg;
-	my %l_map;
-	read_old_urls(\%l_map, '', Git::SVN::svn_dir());
-	my $migrated = 0;
-
-	require Git::SVN;
-	foreach my $ref_id (sort keys %l_map) {
-		eval { Git::SVN->init($l_map{$ref_id}, '', undef, $ref_id) };
-		if ($@) {
-			Git::SVN->init($l_map{$ref_id}, '', $ref_id, $ref_id);
-		}
-		$migrated++;
-	}
-	$migrated;
-}
-
-sub minimize_connections {
-	require Git::SVN;
-	require Git::SVN::Ra;
-
-	my $r = Git::SVN::read_all_remotes();
-	my $new_urls = {};
-	my $root_repos = {};
-	foreach my $repo_id (keys %$r) {
-		my $url = $r->{$repo_id}->{url} or next;
-		my $fetch = $r->{$repo_id}->{fetch} or next;
-		my $ra = Git::SVN::Ra->new($url);
-
-		# skip existing cases where we already connect to the root
-		if (($ra->url eq $ra->{repos_root}) ||
-		    ($ra->{repos_root} eq $repo_id)) {
-			$root_repos->{$ra->url} = $repo_id;
-			next;
-		}
-
-		my $root_ra = Git::SVN::Ra->new($ra->{repos_root});
-		my $root_path = $ra->url;
-		$root_path =~ s#^\Q$ra->{repos_root}\E(/|$)##;
-		foreach my $path (keys %$fetch) {
-			my $ref_id = $fetch->{$path};
-			my $gs = Git::SVN->new($ref_id, $repo_id, $path);
-
-			# make sure we can read when connecting to
-			# a higher level of a repository
-			my ($last_rev, undef) = $gs->last_rev_commit;
-			if (!defined $last_rev) {
-				$last_rev = eval {
-					$root_ra->get_latest_revnum;
-				};
-				next if $@;
-			}
-			my $new = $root_path;
-			$new .= length $path ? "/$path" : '';
-			eval {
-				$root_ra->get_log([$new], $last_rev, $last_rev,
-			                          0, 0, 1, sub { });
-			};
-			next if $@;
-			$new_urls->{$ra->{repos_root}}->{$new} =
-			        { ref_id => $ref_id,
-				  old_repo_id => $repo_id,
-				  old_path => $path };
-		}
-	}
-
-	my @emptied;
-	foreach my $url (keys %$new_urls) {
-		# see if we can re-use an existing [svn-remote "repo_id"]
-		# instead of creating a(n ugly) new section:
-		my $repo_id = $root_repos->{$url} || $url;
-
-		my $fetch = $new_urls->{$url};
-		foreach my $path (keys %$fetch) {
-			my $x = $fetch->{$path};
-			Git::SVN->init($url, $path, $repo_id, $x->{ref_id});
-			my $pfx = "svn-remote.$x->{old_repo_id}";
-
-			my $old_fetch = quotemeta("$x->{old_path}:".
-			                          "$x->{ref_id}");
-			command_noisy(qw/config --unset/,
-			              "$pfx.fetch", '^'. $old_fetch . '$');
-			delete $r->{$x->{old_repo_id}}->
-			       {fetch}->{$x->{old_path}};
-			if (!keys %{$r->{$x->{old_repo_id}}->{fetch}}) {
-				command_noisy(qw/config --unset/,
-				              "$pfx.url");
-				push @emptied, $x->{old_repo_id}
-			}
-		}
-	}
-	if (@emptied) {
-		my $file = $ENV{GIT_CONFIG} ||
-			command_oneline(qw(rev-parse --git-path config));
-		print STDERR <<EOF;
-The following [svn-remote] sections in your config file ($file) are empty
-and can be safely removed:
-EOF
-		print STDERR "[svn-remote \"$_\"]\n" foreach @emptied;
-	}
-}
-
-sub migration_check {
-	migrate_from_v0();
-	migrate_from_v1();
-	migrate_from_v2();
-	minimize_connections() if $_minimize;
-}
-
-1;
diff --git a/third_party/git/perl/Git/SVN/Prompt.pm b/third_party/git/perl/Git/SVN/Prompt.pm
deleted file mode 100644
index e940b08505f1..000000000000
--- a/third_party/git/perl/Git/SVN/Prompt.pm
+++ /dev/null
@@ -1,184 +0,0 @@
-package Git::SVN::Prompt;
-use strict;
-use warnings;
-require SVN::Core;
-use vars qw/$_no_auth_cache $_username/;
-
-sub simple {
-	my ($cred, $realm, $default_username, $may_save, $pool) = @_;
-	$may_save = undef if $_no_auth_cache;
-	$default_username = $_username if defined $_username;
-	if (defined $default_username && length $default_username) {
-		if (defined $realm && length $realm) {
-			print STDERR "Authentication realm: $realm\n";
-			STDERR->flush;
-		}
-		$cred->username($default_username);
-	} else {
-		username($cred, $realm, $may_save, $pool);
-	}
-	$cred->password(_read_password("Password for '" .
-	                               $cred->username . "': ", $realm));
-	$cred->may_save($may_save);
-	$SVN::_Core::SVN_NO_ERROR;
-}
-
-sub ssl_server_trust {
-	my ($cred, $realm, $failures, $cert_info, $may_save, $pool) = @_;
-	$may_save = undef if $_no_auth_cache;
-	print STDERR "Error validating server certificate for '$realm':\n";
-	{
-		no warnings 'once';
-		# All variables SVN::Auth::SSL::* are used only once,
-		# so we're shutting up Perl warnings about this.
-		if ($failures & $SVN::Auth::SSL::UNKNOWNCA) {
-			print STDERR " - The certificate is not issued ",
-			    "by a trusted authority. Use the\n",
-			    "   fingerprint to validate ",
-			    "the certificate manually!\n";
-		}
-		if ($failures & $SVN::Auth::SSL::CNMISMATCH) {
-			print STDERR " - The certificate hostname ",
-			    "does not match.\n";
-		}
-		if ($failures & $SVN::Auth::SSL::NOTYETVALID) {
-			print STDERR " - The certificate is not yet valid.\n";
-		}
-		if ($failures & $SVN::Auth::SSL::EXPIRED) {
-			print STDERR " - The certificate has expired.\n";
-		}
-		if ($failures & $SVN::Auth::SSL::OTHER) {
-			print STDERR " - The certificate has ",
-			    "an unknown error.\n";
-		}
-	} # no warnings 'once'
-	printf STDERR
-	        "Certificate information:\n".
-	        " - Hostname: %s\n".
-	        " - Valid: from %s until %s\n".
-	        " - Issuer: %s\n".
-	        " - Fingerprint: %s\n",
-	        map $cert_info->$_, qw(hostname valid_from valid_until
-	                               issuer_dname fingerprint);
-	my $choice;
-prompt:
-	my $options = $may_save ?
-	      "(R)eject, accept (t)emporarily or accept (p)ermanently? " :
-	      "(R)eject or accept (t)emporarily? ";
-	STDERR->flush;
-	$choice = lc(substr(Git::prompt("Certificate problem.\n" . $options) || 'R', 0, 1));
-	if ($choice eq 't') {
-		$cred->may_save(undef);
-	} elsif ($choice eq 'r') {
-		return -1;
-	} elsif ($may_save && $choice eq 'p') {
-		$cred->may_save($may_save);
-	} else {
-		goto prompt;
-	}
-	$cred->accepted_failures($failures);
-	$SVN::_Core::SVN_NO_ERROR;
-}
-
-sub ssl_client_cert {
-	my ($cred, $realm, $may_save, $pool) = @_;
-	$may_save = undef if $_no_auth_cache;
-	print STDERR "Client certificate filename: ";
-	STDERR->flush;
-	chomp(my $filename = <STDIN>);
-	$cred->cert_file($filename);
-	$cred->may_save($may_save);
-	$SVN::_Core::SVN_NO_ERROR;
-}
-
-sub ssl_client_cert_pw {
-	my ($cred, $realm, $may_save, $pool) = @_;
-	$may_save = undef if $_no_auth_cache;
-	$cred->password(_read_password("Password: ", $realm));
-	$cred->may_save($may_save);
-	$SVN::_Core::SVN_NO_ERROR;
-}
-
-sub username {
-	my ($cred, $realm, $may_save, $pool) = @_;
-	$may_save = undef if $_no_auth_cache;
-	if (defined $realm && length $realm) {
-		print STDERR "Authentication realm: $realm\n";
-	}
-	my $username;
-	if (defined $_username) {
-		$username = $_username;
-	} else {
-		$username = Git::prompt("Username: ");
-	}
-	$cred->username($username);
-	$cred->may_save($may_save);
-	$SVN::_Core::SVN_NO_ERROR;
-}
-
-sub _read_password {
-	my ($prompt, $realm) = @_;
-	my $password = Git::prompt($prompt, 1);
-	$password;
-}
-
-1;
-__END__
-
-=head1 NAME
-
-Git::SVN::Prompt - authentication callbacks for git-svn
-
-=head1 SYNOPSIS
-
-    use Git::SVN::Prompt qw(simple ssl_client_cert ssl_client_cert_pw
-                            ssl_server_trust username);
-    use SVN::Client ();
-
-    my $cached_simple = SVN::Client::get_simple_provider();
-    my $git_simple = SVN::Client::get_simple_prompt_provider(\&simple, 2);
-    my $cached_ssl = SVN::Client::get_ssl_server_trust_file_provider();
-    my $git_ssl = SVN::Client::get_ssl_server_trust_prompt_provider(
-        \&ssl_server_trust);
-    my $cached_cert = SVN::Client::get_ssl_client_cert_file_provider();
-    my $git_cert = SVN::Client::get_ssl_client_cert_prompt_provider(
-        \&ssl_client_cert, 2);
-    my $cached_cert_pw = SVN::Client::get_ssl_client_cert_pw_file_provider();
-    my $git_cert_pw = SVN::Client::get_ssl_client_cert_pw_prompt_provider(
-        \&ssl_client_cert_pw, 2);
-    my $cached_username = SVN::Client::get_username_provider();
-    my $git_username = SVN::Client::get_username_prompt_provider(
-        \&username, 2);
-
-    my $ctx = new SVN::Client(
-        auth => [
-            $cached_simple, $git_simple,
-            $cached_ssl, $git_ssl,
-            $cached_cert, $git_cert,
-            $cached_cert_pw, $git_cert_pw,
-            $cached_username, $git_username
-        ]);
-
-=head1 DESCRIPTION
-
-This module is an implementation detail of the "git svn" command.
-It implements git-svn's authentication policy.  Do not use it unless
-you are developing git-svn.
-
-The interface will change as git-svn evolves.
-
-=head1 DEPENDENCIES
-
-L<SVN::Core>.
-
-=head1 SEE ALSO
-
-L<SVN::Client>.
-
-=head1 INCOMPATIBILITIES
-
-None reported.
-
-=head1 BUGS
-
-None.
diff --git a/third_party/git/perl/Git/SVN/Ra.pm b/third_party/git/perl/Git/SVN/Ra.pm
deleted file mode 100644
index 2cfe055a9a04..000000000000
--- a/third_party/git/perl/Git/SVN/Ra.pm
+++ /dev/null
@@ -1,708 +0,0 @@
-package Git::SVN::Ra;
-use vars qw/@ISA $config_dir $_ignore_refs_regex $_log_window_size/;
-use strict;
-use warnings;
-use Memoize;
-use Git::SVN::Utils qw(
-	canonicalize_url
-	canonicalize_path
-	add_path_to_url
-);
-
-use SVN::Ra;
-BEGIN {
-	@ISA = qw(SVN::Ra);
-}
-
-my ($ra_invalid, $can_do_switch, %ignored_err, $RA);
-
-BEGIN {
-	# enforce temporary pool usage for some simple functions
-	no strict 'refs';
-	for my $f (qw/rev_proplist get_latest_revnum get_uuid get_repos_root
-	              get_file/) {
-		my $SUPER = "SUPER::$f";
-		*$f = sub {
-			my $self = shift;
-			my $pool = SVN::Pool->new;
-			my @ret = $self->$SUPER(@_,$pool);
-			$pool->clear;
-			wantarray ? @ret : $ret[0];
-		};
-	}
-}
-
-# serf has a bug that leads to a coredump upon termination if the
-# remote access object is left around (not fixed yet in serf 1.3.1).
-# Explicitly free it to work around the issue.
-END {
-	$RA = undef;
-	$ra_invalid = 1;
-}
-
-sub _auth_providers () {
-	require SVN::Client;
-	my @rv = (
-	  SVN::Client::get_simple_provider(),
-	  SVN::Client::get_ssl_server_trust_file_provider(),
-	  SVN::Client::get_simple_prompt_provider(
-	    \&Git::SVN::Prompt::simple, 2),
-	  SVN::Client::get_ssl_client_cert_file_provider(),
-	  SVN::Client::get_ssl_client_cert_prompt_provider(
-	    \&Git::SVN::Prompt::ssl_client_cert, 2),
-	  SVN::Client::get_ssl_client_cert_pw_file_provider(),
-	  SVN::Client::get_ssl_client_cert_pw_prompt_provider(
-	    \&Git::SVN::Prompt::ssl_client_cert_pw, 2),
-	  SVN::Client::get_username_provider(),
-	  SVN::Client::get_ssl_server_trust_prompt_provider(
-	    \&Git::SVN::Prompt::ssl_server_trust),
-	  SVN::Client::get_username_prompt_provider(
-	    \&Git::SVN::Prompt::username, 2)
-	);
-
-	# earlier 1.6.x versions would segfault, and <= 1.5.x didn't have
-	# this function
-	if (::compare_svn_version('1.6.15') >= 0) {
-		my $config = SVN::Core::config_get_config($config_dir);
-		my ($p, @a);
-		# config_get_config returns all config files from
-		# ~/.subversion, auth_get_platform_specific_client_providers
-		# just wants the config "file".
-		@a = ($config->{'config'}, undef);
-		$p = SVN::Core::auth_get_platform_specific_client_providers(@a);
-		# Insert the return value from
-		# auth_get_platform_specific_providers
-		unshift @rv, @$p;
-	}
-	\@rv;
-}
-
-sub prepare_config_once {
-	SVN::_Core::svn_config_ensure($config_dir, undef);
-	my ($baton, $callbacks) = SVN::Core::auth_open_helper(_auth_providers);
-	my $config = SVN::Core::config_get_config($config_dir);
-	my $conf_t = $config->{'config'};
-
-	no warnings 'once';
-	# The usage of $SVN::_Core::SVN_CONFIG_* variables
-	# produces warnings that variables are used only once.
-	# I had not found the better way to shut them up, so
-	# the warnings of type 'once' are disabled in this block.
-	if (SVN::_Core::svn_config_get_bool($conf_t,
-	    $SVN::_Core::SVN_CONFIG_SECTION_AUTH,
-	    $SVN::_Core::SVN_CONFIG_OPTION_STORE_PASSWORDS,
-	    1) == 0) {
-		my $val = '1';
-		if (::compare_svn_version('1.9.0') < 0) { # pre-SVN r1553823
-			my $dont_store_passwords = 1;
-			$val = bless \$dont_store_passwords, "_p_void";
-		}
-		SVN::_Core::svn_auth_set_parameter($baton,
-		    $SVN::_Core::SVN_AUTH_PARAM_DONT_STORE_PASSWORDS,
-		    $val);
-	}
-	if (SVN::_Core::svn_config_get_bool($conf_t,
-	    $SVN::_Core::SVN_CONFIG_SECTION_AUTH,
-	    $SVN::_Core::SVN_CONFIG_OPTION_STORE_AUTH_CREDS,
-	    1) == 0) {
-		$Git::SVN::Prompt::_no_auth_cache = 1;
-	}
-
-	return ($config, $baton, $callbacks);
-} # no warnings 'once'
-
-INIT {
-	Memoize::memoize '_auth_providers';
-	Memoize::memoize 'prepare_config_once';
-}
-
-sub new {
-	my ($class, $url) = @_;
-	$url = canonicalize_url($url);
-	return $RA if ($RA && $RA->url eq $url);
-
-	::_req_svn();
-
-	$RA = undef;
-	my ($config, $baton, $callbacks) = prepare_config_once();
-	my $self = SVN::Ra->new(url => $url, auth => $baton,
-	                      config => $config,
-			      pool => SVN::Pool->new,
-	                      auth_provider_callbacks => $callbacks);
-	$RA = bless $self, $class;
-
-	# Make sure its canonicalized
-	$self->url($url);
-	$self->{svn_path} = $url;
-	$self->{repos_root} = $self->get_repos_root;
-	$self->{svn_path} =~ s#^\Q$self->{repos_root}\E(/|$)##;
-	$self->{cache} = { check_path => { r => 0, data => {} },
-	                   get_dir => { r => 0, data => {} } };
-
-	return $RA;
-}
-
-sub url {
-	my $self = shift;
-
-	if (@_) {
-		my $url = shift;
-		$self->{url} = canonicalize_url($url);
-		return;
-	}
-
-	return $self->{url};
-}
-
-sub check_path {
-	my ($self, $path, $r) = @_;
-	my $cache = $self->{cache}->{check_path};
-	if ($r == $cache->{r} && exists $cache->{data}->{$path}) {
-		return $cache->{data}->{$path};
-	}
-	my $pool = SVN::Pool->new;
-	my $t = $self->SUPER::check_path($path, $r, $pool);
-	$pool->clear;
-	if ($r != $cache->{r}) {
-		%{$cache->{data}} = ();
-		$cache->{r} = $r;
-	}
-	$cache->{data}->{$path} = $t;
-}
-
-sub get_dir {
-	my ($self, $dir, $r) = @_;
-	my $cache = $self->{cache}->{get_dir};
-	if ($r == $cache->{r}) {
-		if (my $x = $cache->{data}->{$dir}) {
-			return wantarray ? @$x : $x->[0];
-		}
-	}
-	my $pool = SVN::Pool->new;
-	my ($d, undef, $props);
-
-	if (::compare_svn_version('1.4.0') >= 0) {
-		# n.b. in addition to being potentially more efficient,
-		# this works around what appears to be a bug in some
-		# SVN 1.8 versions
-		my $kind = 1; # SVN_DIRENT_KIND
-		($d, undef, $props) = $self->get_dir2($dir, $r, $kind, $pool);
-	} else {
-		($d, undef, $props) = $self->SUPER::get_dir($dir, $r, $pool);
-	}
-	my %dirents = map { $_ => { kind => $d->{$_}->kind } } keys %$d;
-	$pool->clear;
-	if ($r != $cache->{r}) {
-		%{$cache->{data}} = ();
-		$cache->{r} = $r;
-	}
-	$cache->{data}->{$dir} = [ \%dirents, $r, $props ];
-	wantarray ? (\%dirents, $r, $props) : \%dirents;
-}
-
-# get_log(paths, start, end, limit,
-#         discover_changed_paths, strict_node_history, receiver)
-sub get_log {
-	my ($self, @args) = @_;
-	my $pool = SVN::Pool->new;
-
-	# svn_log_changed_path_t objects passed to get_log are likely to be
-	# overwritten even if only the refs are copied to an external variable,
-	# so we should dup the structures in their entirety.  Using an
-	# externally passed pool (instead of our temporary and quickly cleared
-	# pool in Git::SVN::Ra) does not help matters at all...
-	my $receiver = pop @args;
-	my $prefix = "/".$self->{svn_path};
-	$prefix =~ s#/+($)##;
-	my $prefix_regex = qr#^\Q$prefix\E#;
-	push(@args, sub {
-		my ($paths) = $_[0];
-		return &$receiver(@_) unless $paths;
-		$_[0] = ();
-		foreach my $p (keys %$paths) {
-			my $i = $paths->{$p};
-			# Make path relative to our url, not repos_root
-			$p =~ s/$prefix_regex//;
-			my %s = map { $_ => $i->$_; }
-				qw/copyfrom_path copyfrom_rev action/;
-			if ($s{'copyfrom_path'}) {
-				$s{'copyfrom_path'} =~ s/$prefix_regex//;
-				$s{'copyfrom_path'} = canonicalize_path($s{'copyfrom_path'});
-			}
-			$_[0]{$p} = \%s;
-		}
-		&$receiver(@_);
-	});
-
-
-	# the limit parameter was not supported in SVN 1.1.x, so we
-	# drop it.  Therefore, the receiver callback passed to it
-	# is made aware of this limitation by being wrapped if
-	# the limit passed to is being wrapped.
-	if (::compare_svn_version('1.2.0') <= 0) {
-		my $limit = splice(@args, 3, 1);
-		if ($limit > 0) {
-			my $receiver = pop @args;
-			push(@args, sub { &$receiver(@_) if (--$limit >= 0) });
-		}
-	}
-	my $ret = $self->SUPER::get_log(@args, $pool);
-	$pool->clear;
-	$ret;
-}
-
-# uncommon, only for ancient SVN (<= 1.4.2)
-sub trees_match {
-	require IO::File;
-	require SVN::Client;
-	my ($self, $url1, $rev1, $url2, $rev2) = @_;
-	my $ctx = SVN::Client->new(auth => _auth_providers);
-	my $out = IO::File->new_tmpfile;
-
-	# older SVN (1.1.x) doesn't take $pool as the last parameter for
-	# $ctx->diff(), so we'll create a default one
-	my $pool = SVN::Pool->new_default_sub;
-
-	$ra_invalid = 1; # this will open a new SVN::Ra connection to $url1
-	$ctx->diff([], $url1, $rev1, $url2, $rev2, 1, 1, 0, $out, $out);
-	$out->flush;
-	my $ret = (($out->stat)[7] == 0);
-	close $out or croak $!;
-
-	$ret;
-}
-
-sub get_commit_editor {
-	my ($self, $log, $cb, $pool) = @_;
-
-	my @lock = (::compare_svn_version('1.2.0') >= 0) ? (undef, 0) : ();
-	$self->SUPER::get_commit_editor($log, $cb, @lock, $pool);
-}
-
-sub gs_do_update {
-	my ($self, $rev_a, $rev_b, $gs, $editor) = @_;
-	my $new = ($rev_a == $rev_b);
-	my $path = $gs->path;
-
-	if ($new && -e $gs->{index}) {
-		unlink $gs->{index} or die
-		  "Couldn't unlink index: $gs->{index}: $!\n";
-	}
-	my $pool = SVN::Pool->new;
-	$editor->set_path_strip($path);
-	my (@pc) = split m#/#, $path;
-	my $reporter = $self->do_update($rev_b, (@pc ? shift @pc : ''),
-	                                1, $editor, $pool);
-	my @lock = (::compare_svn_version('1.2.0') >= 0) ? (undef) : ();
-
-	# Since we can't rely on svn_ra_reparent being available, we'll
-	# just have to do some magic with set_path to make it so
-	# we only want a partial path.
-	my $sp = '';
-	my $final = join('/', @pc);
-	while (@pc) {
-		$reporter->set_path($sp, $rev_b, 0, @lock, $pool);
-		$sp .= '/' if length $sp;
-		$sp .= shift @pc;
-	}
-	die "BUG: '$sp' != '$final'\n" if ($sp ne $final);
-
-	$reporter->set_path($sp, $rev_a, $new, @lock, $pool);
-
-	$reporter->finish_report($pool);
-	$pool->clear;
-	$editor->{git_commit_ok};
-}
-
-# this requires SVN 1.4.3 or later (do_switch didn't work before 1.4.3, and
-# svn_ra_reparent didn't work before 1.4)
-sub gs_do_switch {
-	my ($self, $rev_a, $rev_b, $gs, $url_b, $editor) = @_;
-	my $path = $gs->path;
-	my $pool = SVN::Pool->new;
-
-	my $old_url = $self->url;
-	my $full_url = add_path_to_url( $self->url, $path );
-	my ($ra, $reparented);
-
-	if ($old_url =~ m#^svn(\+\w+)?://# ||
-	    ($full_url =~ m#^https?://# &&
-	     canonicalize_url($full_url) ne $full_url)) {
-		$_[0] = undef;
-		$self = undef;
-		$RA = undef;
-		$ra = Git::SVN::Ra->new($full_url);
-		$ra_invalid = 1;
-	} elsif ($old_url ne $full_url) {
-		SVN::_Ra::svn_ra_reparent(
-			$self->{session},
-			canonicalize_url($full_url),
-			$pool
-		);
-		$self->url($full_url);
-		$reparented = 1;
-	}
-
-	$ra ||= $self;
-	$url_b = canonicalize_url($url_b);
-	my $reporter = $ra->do_switch($rev_b, '', 1, $url_b, $editor, $pool);
-	my @lock = (::compare_svn_version('1.2.0') >= 0) ? (undef) : ();
-	$reporter->set_path('', $rev_a, 0, @lock, $pool);
-	$reporter->finish_report($pool);
-
-	if ($reparented) {
-		SVN::_Ra::svn_ra_reparent($self->{session}, $old_url, $pool);
-		$self->url($old_url);
-	}
-
-	$pool->clear;
-	$editor->{git_commit_ok};
-}
-
-sub longest_common_path {
-	my ($gsv, $globs) = @_;
-	my %common;
-	my $common_max = scalar @$gsv;
-
-	foreach my $gs (@$gsv) {
-		my @tmp = split m#/#, $gs->path;
-		my $p = '';
-		foreach (@tmp) {
-			$p .= length($p) ? "/$_" : $_;
-			$common{$p} ||= 0;
-			$common{$p}++;
-		}
-	}
-	$globs ||= [];
-	$common_max += scalar @$globs;
-	foreach my $glob (@$globs) {
-		my @tmp = split m#/#, $glob->{path}->{left};
-		my $p = '';
-		foreach (@tmp) {
-			$p .= length($p) ? "/$_" : $_;
-			$common{$p} ||= 0;
-			$common{$p}++;
-		}
-	}
-
-	my $longest_path = '';
-	foreach (sort {length $b <=> length $a} keys %common) {
-		if ($common{$_} == $common_max) {
-			$longest_path = $_;
-			last;
-		}
-	}
-	$longest_path;
-}
-
-sub gs_fetch_loop_common {
-	my ($self, $base, $head, $gsv, $globs) = @_;
-	return if ($base > $head);
-	# Make sure the cat_blob open2 FileHandle is created before calling
-	# SVN::Pool::new_default so that it does not incorrectly end up in the pool.
-	$::_repository->_open_cat_blob_if_needed;
-	my $gpool = SVN::Pool->new_default;
-	my $ra_url = $self->url;
-	my $reload_ra = sub {
-		$_[0] = undef;
-		$self = undef;
-		$RA = undef;
-		$gpool->clear;
-		$self = Git::SVN::Ra->new($ra_url);
-		$ra_invalid = undef;
-	};
-	my $inc = $_log_window_size;
-	my ($min, $max) = ($base, $head < $base + $inc ? $head : $base + $inc);
-	my $longest_path = longest_common_path($gsv, $globs);
-	my $find_trailing_edge;
-	while (1) {
-		my %revs;
-		my $err;
-		my $err_handler = $SVN::Error::handler;
-		$SVN::Error::handler = sub {
-			($err) = @_;
-			skip_unknown_revs($err);
-		};
-		sub _cb {
-			my ($paths, $r, $author, $date, $log) = @_;
-			[ $paths,
-			  { author => $author, date => $date, log => $log } ];
-		}
-		$self->get_log([$longest_path], $min, $max, 0, 1, 1,
-		               sub { $revs{$_[1]} = _cb(@_) });
-		if ($err) {
-			print "Checked through r$max\r";
-		} else {
-			$find_trailing_edge = 1;
-		}
-		if ($err and $find_trailing_edge) {
-			print STDERR "Path '$longest_path' ",
-				     "was probably deleted:\n",
-				     $err->expanded_message,
-				     "\nWill attempt to follow ",
-				     "revisions r$min .. r$max ",
-				     "committed before the deletion\n";
-			my $hi = $max;
-			while (--$hi >= $min) {
-				my $ok;
-				$self->get_log([$longest_path], $min, $hi,
-				               0, 1, 1, sub {
-				               $ok = $_[1];
-				               $revs{$_[1]} = _cb(@_) });
-				if ($ok) {
-					print STDERR "r$min .. r$ok OK\n";
-					last;
-				}
-			}
-			$find_trailing_edge = 0;
-		}
-		$SVN::Error::handler = $err_handler;
-
-		my %exists = map { $_->path => $_ } @$gsv;
-		foreach my $r (sort {$a <=> $b} keys %revs) {
-			my ($paths, $logged) = @{delete $revs{$r}};
-
-			foreach my $gs ($self->match_globs(\%exists, $paths,
-			                                   $globs, $r)) {
-				if ($gs->rev_map_max >= $r) {
-					next;
-				}
-				next unless $gs->match_paths($paths, $r);
-				$gs->{logged_rev_props} = $logged;
-				if (my $last_commit = $gs->last_commit) {
-					$gs->assert_index_clean($last_commit);
-				}
-				my $log_entry = $gs->do_fetch($paths, $r);
-				if ($log_entry) {
-					$gs->do_git_commit($log_entry);
-				}
-				$Git::SVN::INDEX_FILES{$gs->{index}} = 1;
-			}
-			foreach my $g (@$globs) {
-				my $k = "svn-remote.$g->{remote}." .
-				        "$g->{t}-maxRev";
-				Git::SVN::tmp_config($k, $r);
-			}
-			$reload_ra->() if $ra_invalid;
-		}
-		# pre-fill the .rev_db since it'll eventually get filled in
-		# with '0' x $oid_length if something new gets committed
-		foreach my $gs (@$gsv) {
-			next if $gs->rev_map_max >= $max;
-			next if defined $gs->rev_map_get($max);
-			$gs->rev_map_set($max, 0 x $::oid_length);
-		}
-		foreach my $g (@$globs) {
-			my $k = "svn-remote.$g->{remote}.$g->{t}-maxRev";
-			Git::SVN::tmp_config($k, $max);
-		}
-		last if $max >= $head;
-		$min = $max + 1;
-		$max += $inc;
-		$max = $head if ($max > $head);
-
-		$reload_ra->();
-	}
-	Git::SVN::gc();
-}
-
-sub get_dir_globbed {
-	my ($self, $left, $depth, $r) = @_;
-
-	my @x = eval { $self->get_dir($left, $r) };
-	return unless scalar @x == 3;
-	my $dirents = $x[0];
-	my @finalents;
-	foreach my $de (keys %$dirents) {
-		next if $dirents->{$de}->{kind} != $SVN::Node::dir;
-		if ($depth > 1) {
-			my @args = ("$left/$de", $depth - 1, $r);
-			foreach my $dir ($self->get_dir_globbed(@args)) {
-				push @finalents, "$de/$dir";
-			}
-		} else {
-			push @finalents, $de;
-		}
-	}
-	@finalents;
-}
-
-# return value: 0 -- don't ignore, 1 -- ignore
-sub is_ref_ignored {
-	my ($g, $p) = @_;
-	my $refname = $g->{ref}->full_path($p);
-	return 1 if defined($g->{ignore_refs_regex}) &&
-	            $refname =~ m!$g->{ignore_refs_regex}!;
-	return 0 unless defined($_ignore_refs_regex);
-	return 1 if $refname =~ m!$_ignore_refs_regex!o;
-	return 0;
-}
-
-sub match_globs {
-	my ($self, $exists, $paths, $globs, $r) = @_;
-
-	sub get_dir_check {
-		my ($self, $exists, $g, $r) = @_;
-
-		my @dirs = $self->get_dir_globbed($g->{path}->{left},
-		                                  $g->{path}->{depth},
-		                                  $r);
-
-		foreach my $de (@dirs) {
-			my $p = $g->{path}->full_path($de);
-			next if $exists->{$p};
-			next if (length $g->{path}->{right} &&
-				 ($self->check_path($p, $r) !=
-				  $SVN::Node::dir));
-			next unless $p =~ /$g->{path}->{regex}/;
-			$exists->{$p} = Git::SVN->init($self->url, $p, undef,
-					 $g->{ref}->full_path($de), 1);
-		}
-	}
-	foreach my $g (@$globs) {
-		if (my $path = $paths->{"/$g->{path}->{left}"}) {
-			if ($path->{action} =~ /^[AR]$/) {
-				get_dir_check($self, $exists, $g, $r);
-			}
-		}
-		foreach (keys %$paths) {
-			if (/$g->{path}->{left_regex}/ &&
-			    !/$g->{path}->{regex}/) {
-				next if $paths->{$_}->{action} !~ /^[AR]$/;
-				get_dir_check($self, $exists, $g, $r);
-			}
-			next unless /$g->{path}->{regex}/;
-			my $p = $1;
-			my $pathname = $g->{path}->full_path($p);
-			next if is_ref_ignored($g, $p);
-			next if $exists->{$pathname};
-			next if ($self->check_path($pathname, $r) !=
-			         $SVN::Node::dir);
-			$exists->{$pathname} = Git::SVN->init(
-			                      $self->url, $pathname, undef,
-			                      $g->{ref}->full_path($p), 1);
-		}
-		my $c = '';
-		foreach (split m#/#, $g->{path}->{left}) {
-			$c .= "/$_";
-			next unless ($paths->{$c} &&
-			             ($paths->{$c}->{action} =~ /^[AR]$/));
-			get_dir_check($self, $exists, $g, $r);
-		}
-	}
-	values %$exists;
-}
-
-sub minimize_url {
-	my ($self) = @_;
-	return $self->url if ($self->url eq $self->{repos_root});
-	my $url = $self->{repos_root};
-	my @components = split(m!/!, $self->{svn_path});
-	my $c = '';
-	do {
-		$url = add_path_to_url($url, $c);
-		eval {
-			my $ra = (ref $self)->new($url);
-			my $latest = $ra->get_latest_revnum;
-			$ra->get_log("", $latest, 0, 1, 0, 1, sub {});
-		};
-	} while ($@ && defined($c = shift @components));
-
-	return canonicalize_url($url);
-}
-
-sub can_do_switch {
-	my $self = shift;
-	unless (defined $can_do_switch) {
-		my $pool = SVN::Pool->new;
-		my $rep = eval {
-			$self->do_switch(1, '', 0, $self->url,
-			                 SVN::Delta::Editor->new, $pool);
-		};
-		if ($@) {
-			$can_do_switch = 0;
-		} else {
-			$rep->abort_report($pool);
-			$can_do_switch = 1;
-		}
-		$pool->clear;
-	}
-	$can_do_switch;
-}
-
-sub skip_unknown_revs {
-	my ($err) = @_;
-	my $errno = $err->apr_err();
-	# Maybe the branch we're tracking didn't
-	# exist when the repo started, so it's
-	# not an error if it doesn't, just continue
-	#
-	# Wonderfully consistent library, eh?
-	# 160013 - svn:// and file://
-	# 175002 - http(s)://
-	# 175007 - http(s):// (this repo required authorization, too...)
-	#   More codes may be discovered later...
-	if ($errno == 175007 || $errno == 175002 || $errno == 160013) {
-		my $err_key = $err->expanded_message;
-		# revision numbers change every time, filter them out
-		$err_key =~ s/\d+/\0/g;
-		$err_key = "$errno\0$err_key";
-		unless ($ignored_err{$err_key}) {
-			warn "W: Ignoring error from SVN, path probably ",
-			     "does not exist: ($errno): ",
-			     $err->expanded_message,"\n";
-			warn "W: Do not be alarmed at the above message ",
-			     "git-svn is just searching aggressively for ",
-			     "old history.\n",
-			     "This may take a while on large repositories\n";
-			$ignored_err{$err_key} = 1;
-		}
-		return;
-	}
-	die "Error from SVN, ($errno): ", $err->expanded_message,"\n";
-}
-
-1;
-__END__
-
-=head1 NAME
-
-Git::SVN::Ra - Subversion remote access functions for git-svn
-
-=head1 SYNOPSIS
-
-    use Git::SVN::Ra;
-
-    my $ra = Git::SVN::Ra->new($branchurl);
-    my ($dirents, $fetched_revnum, $props) =
-        $ra->get_dir('.', $SVN::Core::INVALID_REVNUM);
-
-=head1 DESCRIPTION
-
-This is a wrapper around the L<SVN::Ra> module for use by B<git-svn>.
-It fills in some default parameters (such as the authentication
-scheme), smooths over incompatibilities between libsvn versions, adds
-caching, and implements some functions specific to B<git-svn>.
-
-Do not use it unless you are developing git-svn.  The interface will
-change as git-svn evolves.
-
-=head1 DEPENDENCIES
-
-Subversion perl bindings,
-L<Git::SVN>.
-
-C<Git::SVN::Ra> has not been tested using callers other than
-B<git-svn> itself.
-
-=head1 SEE ALSO
-
-L<SVN::Ra>.
-
-=head1 INCOMPATIBILITIES
-
-None reported.
-
-=head1 BUGS
-
-None.
diff --git a/third_party/git/perl/Git/SVN/Utils.pm b/third_party/git/perl/Git/SVN/Utils.pm
deleted file mode 100644
index 3d1a0933a2eb..000000000000
--- a/third_party/git/perl/Git/SVN/Utils.pm
+++ /dev/null
@@ -1,232 +0,0 @@
-package Git::SVN::Utils;
-
-use strict;
-use warnings;
-
-use SVN::Core;
-
-use base qw(Exporter);
-
-our @EXPORT_OK = qw(
-	fatal
-	can_compress
-	canonicalize_path
-	canonicalize_url
-	join_paths
-	add_path_to_url
-);
-
-
-=head1 NAME
-
-Git::SVN::Utils - utility functions used across Git::SVN
-
-=head1 SYNOPSIS
-
-    use Git::SVN::Utils qw(functions to import);
-
-=head1 DESCRIPTION
-
-This module contains functions which are useful across many different
-parts of Git::SVN.  Mostly it's a place to put utility functions
-rather than duplicate the code or have classes grabbing at other
-classes.
-
-=head1 FUNCTIONS
-
-All functions can be imported only on request.
-
-=head3 fatal
-
-    fatal(@message);
-
-Display a message and exit with a fatal error code.
-
-=cut
-
-# Note: not certain why this is in use instead of die.  Probably because
-# the exit code of die is 255?  Doesn't appear to be used consistently.
-sub fatal (@) { print STDERR "@_\n"; exit 1 }
-
-
-=head3 can_compress
-
-    my $can_compress = can_compress;
-
-Returns true if Compress::Zlib is available, false otherwise.
-
-=cut
-
-my $can_compress;
-sub can_compress {
-	return $can_compress if defined $can_compress;
-
-	return $can_compress = eval { require Compress::Zlib; };
-}
-
-
-=head3 canonicalize_path
-
-    my $canoncalized_path = canonicalize_path($path);
-
-Converts $path into a canonical form which is safe to pass to the SVN
-API as a file path.
-
-=cut
-
-# Turn foo/../bar into bar
-sub _collapse_dotdot {
-	my $path = shift;
-
-	1 while $path =~ s{/[^/]+/+\.\.}{};
-	1 while $path =~ s{[^/]+/+\.\./}{};
-	1 while $path =~ s{[^/]+/+\.\.}{};
-
-	return $path;
-}
-
-
-sub canonicalize_path {
-	my $path = shift;
-	my $rv;
-
-	# The 1.7 way to do it
-	if ( defined &SVN::_Core::svn_dirent_canonicalize ) {
-		$path = _collapse_dotdot($path);
-		$rv = SVN::_Core::svn_dirent_canonicalize($path);
-	}
-	# The 1.6 way to do it
-	# This can return undef on subversion-perl-1.4.2-2.el5 (CentOS 5.2)
-	elsif ( defined &SVN::_Core::svn_path_canonicalize ) {
-		$path = _collapse_dotdot($path);
-		$rv = SVN::_Core::svn_path_canonicalize($path);
-	}
-
-	return $rv if defined $rv;
-
-	# No SVN API canonicalization is available, or the SVN API
-	# didn't return a successful result, do it ourselves
-	return _canonicalize_path_ourselves($path);
-}
-
-
-sub _canonicalize_path_ourselves {
-	my ($path) = @_;
-	my $dot_slash_added = 0;
-	if (substr($path, 0, 1) ne "/") {
-		$path = "./" . $path;
-		$dot_slash_added = 1;
-	}
-	$path =~ s#/+#/#g;
-	$path =~ s#/\.(?:/|$)#/#g;
-	$path = _collapse_dotdot($path);
-	$path =~ s#/$##g;
-	$path =~ s#^\./## if $dot_slash_added;
-	$path =~ s#^\.$##;
-	return $path;
-}
-
-
-=head3 canonicalize_url
-
-    my $canonicalized_url = canonicalize_url($url);
-
-Converts $url into a canonical form which is safe to pass to the SVN
-API as a URL.
-
-=cut
-
-sub canonicalize_url {
-	my $url = shift;
-
-	# The 1.7 way to do it
-	if ( defined &SVN::_Core::svn_uri_canonicalize ) {
-		return SVN::_Core::svn_uri_canonicalize($url);
-	}
-	# There wasn't a 1.6 way to do it, so we do it ourself.
-	else {
-		return _canonicalize_url_ourselves($url);
-	}
-}
-
-
-sub _canonicalize_url_path {
-	my ($uri_path) = @_;
-
-	my @parts;
-	foreach my $part (split m{/+}, $uri_path) {
-		$part =~ s/([^!\$%&'()*+,.\/\w:=\@_`~-]|%(?![a-fA-F0-9]{2}))/sprintf("%%%02X",ord($1))/eg;
-		push @parts, $part;
-	}
-
-	return join('/', @parts);
-}
-
-sub _canonicalize_url_ourselves {
-	my ($url) = @_;
-	if ($url =~ m#^([^:]+)://([^/]*)(.*)$#) {
-		my ($scheme, $domain, $uri) = ($1, $2, _canonicalize_url_path(canonicalize_path($3)));
-		$url = "$scheme://$domain$uri";
-	}
-	$url;
-}
-
-
-=head3 join_paths
-
-    my $new_path = join_paths(@paths);
-
-Appends @paths together into a single path.  Any empty paths are ignored.
-
-=cut
-
-sub join_paths {
-	my @paths = @_;
-
-	@paths = grep { defined $_ && length $_ } @paths;
-
-	return '' unless @paths;
-	return $paths[0] if @paths == 1;
-
-	my $new_path = shift @paths;
-	$new_path =~ s{/+$}{};
-
-	my $last_path = pop @paths;
-	$last_path =~ s{^/+}{};
-
-	for my $path (@paths) {
-		$path =~ s{^/+}{};
-		$path =~ s{/+$}{};
-		$new_path .= "/$path";
-	}
-
-	return $new_path .= "/$last_path";
-}
-
-
-=head3 add_path_to_url
-
-    my $new_url = add_path_to_url($url, $path);
-
-Appends $path onto the $url.  If $path is empty, $url is returned unchanged.
-
-=cut
-
-sub add_path_to_url {
-	my($url, $path) = @_;
-
-	return $url if !defined $path or !length $path;
-
-	# Strip trailing and leading slashes so we don't
-	# wind up with http://x.com///path
-	$url  =~ s{/+$}{};
-	$path =~ s{^/+}{};
-
-	# If a path has a % in it, URI escape it so it's not
-	# mistaken for a URI escape later.
-	$path =~ s{%}{%25}g;
-
-	return join '/', $url, $path;
-}
-
-1;