diff --git a/git-svn.perl b/git-svn.perl
index f453c9ab98..077e9200be 100755
--- a/git-svn.perl
+++ b/git-svn.perl
@@ -32,17 +32,20 @@ my %SKIP = ( 'svn:wc:ra_dav:version-url' => 1,
 );
 
 sub fatal (@) { print STDERR @_; exit 1 }
-# If SVN:: library support is added, please make the dependencies
-# optional and preserve the capability to use the command-line client.
-# use eval { require SVN::... } to make it lazy load
-# We don't use any modules not in the standard Perl distribution:
+require SVN::Core; # use()-ing this causes segfaults for me... *shrug*
+require SVN::Ra;
+require SVN::Delta;
+if ($SVN::Core::VERSION lt '1.1.0') {
+	fatal "Need SVN::Core 1.1.0 or better (got $SVN::Core::VERSION)\n";
+}
+push @SVN::Git::Editor::ISA, 'SVN::Delta::Editor';
+push @SVN::Git::Fetcher::ISA, 'SVN::Delta::Editor';
+*SVN::Git::Fetcher::process_rm = *process_rm;
 use Carp qw/croak/;
 use IO::File qw//;
 use File::Basename qw/dirname basename/;
 use File::Path qw/mkpath/;
 use Getopt::Long qw/:config gnu_getopt no_ignore_case auto_abbrev pass_through/;
-use File::Spec qw//;
-use File::Copy qw/copy/;
 use POSIX qw/strftime/;
 use IPC::Open3;
 use Memoize;
@@ -52,22 +55,7 @@ memoize('revisions_eq');
 memoize('cmt_metadata');
 memoize('get_commit_time');
 
-my ($SVN, $_use_lib);
-
-sub nag_lib {
-	print STDERR <<EOF;
-! Please consider installing the SVN Perl libraries (version 1.1.0 or
-! newer).  You will generally get better performance and fewer bugs,
-! especially if you:
-! 1) have a case-insensitive filesystem
-! 2) replace symlinks with files (and vice-versa) in commits
-
-EOF
-}
-
-$_use_lib = 1 unless $ENV{GIT_SVN_NO_LIB};
-libsvn_load();
-nag_lib() unless $_use_lib;
+my ($SVN);
 
 my $_optimize_commits = 1 unless $ENV{GIT_SVN_NO_OPTIMIZE_COMMITS};
 my $sha1 = qr/[a-f\d]{40}/;
@@ -84,7 +72,7 @@ my ($_revision,$_stdin,$_no_ignore_ext,$_no_stop_copy,$_help,$_rmdir,$_edit,
 	$_username, $_config_dir, $_no_auth_cache, $_xfer_delta,
 	$_pager, $_color);
 my (@_branch_from, %tree_map, %users, %rusers, %equiv);
-my ($_svn_co_url_revs, $_svn_pg_peg_revs, $_svn_can_do_switch);
+my ($_svn_can_do_switch);
 my @repo_path_split_cache;
 
 my %fc_opts = ( 'no-ignore-externals' => \$_no_ignore_ext,
@@ -193,7 +181,6 @@ usage(1) unless defined $cmd;
 init_vars();
 load_authors() if $_authors;
 load_all_refs() if $_branch_all_refs;
-svn_compat_check() unless $_use_lib;
 migration_check() unless $cmd =~ /^(?:init|rebuild|multi-init|commit-diff)$/;
 $cmd{$cmd}->[0]->(@ARGV);
 exit 0;
@@ -281,32 +268,6 @@ sub rebuild {
 		$newest_rev = $rev if ($rev > $newest_rev);
 	}
 	command_close_pipe($rev_list, $ctx);
-
-	goto out if $_use_lib;
-	if (!chdir $SVN_WC) {
-		svn_cmd_checkout($SVN_URL, $latest, $SVN_WC);
-		chdir $SVN_WC or croak $!;
-	}
-
-	my $pid = fork;
-	defined $pid or croak $!;
-	if ($pid == 0) {
-		my @svn_up = qw(svn up);
-		push @svn_up, '--ignore-externals' unless $_no_ignore_ext;
-		sys(@svn_up,"-r$newest_rev");
-		$ENV{GIT_INDEX_FILE} = $GIT_SVN_INDEX;
-		index_changes();
-		exec('git-write-tree') or croak $!;
-	}
-	waitpid $pid, 0;
-	croak $? if $?;
-out:
-	if ($_upgrade) {
-		print STDERR <<"";
-Keeping deprecated refs/head/$GIT_SVN-HEAD for now.  Please remove it
-when you have upgraded your tools and habits to use refs/remotes/$GIT_SVN
-
-	}
 }
 
 sub init {
@@ -335,69 +296,13 @@ sub init {
 sub fetch {
 	check_upgrade_needed();
 	$SVN_URL ||= file_to_s("$GIT_SVN_DIR/info/url");
-	my $ret = $_use_lib ? fetch_lib(@_) : fetch_cmd(@_);
+	my $ret = fetch_lib(@_);
 	if ($ret->{commit} && !verify_ref('refs/heads/master^0')) {
 		command_noisy(qw(update-ref refs/heads/master),$ret->{commit});
 	}
 	return $ret;
 }
 
-sub fetch_cmd {
-	my (@parents) = @_;
-	my @log_args = -d $SVN_WC ? ($SVN_WC) : ($SVN_URL);
-	unless ($_revision) {
-		$_revision = -d $SVN_WC ? 'BASE:HEAD' : '0:HEAD';
-	}
-	push @log_args, "-r$_revision";
-	push @log_args, '--stop-on-copy' unless $_no_stop_copy;
-
-	my $svn_log = svn_log_raw(@log_args);
-
-	my $base = next_log_entry($svn_log) or croak "No base revision!\n";
-	# don't need last_revision from grab_base_rev() because
-	# user could've specified a different revision to skip (they
-	# didn't want to import certain revisions into git for whatever
-	# reason, so trust $base->{revision} instead.
-	my (undef, $last_commit) = svn_grab_base_rev();
-	unless (-d $SVN_WC) {
-		svn_cmd_checkout($SVN_URL,$base->{revision},$SVN_WC);
-		chdir $SVN_WC or croak $!;
-		read_uuid();
-		$last_commit = git_commit($base, @parents);
-		assert_tree($last_commit);
-	} else {
-		chdir $SVN_WC or croak $!;
-		read_uuid();
-		# looks like a user manually cp'd and svn switch'ed
-		unless ($last_commit) {
-			sys(qw/svn revert -R ./);
-			assert_svn_wc_clean($base->{revision});
-			$last_commit = git_commit($base, @parents);
-			assert_tree($last_commit);
-		}
-	}
-	my @svn_up = qw(svn up);
-	push @svn_up, '--ignore-externals' unless $_no_ignore_ext;
-	my $last = $base;
-	while (my $log_msg = next_log_entry($svn_log)) {
-		if ($last->{revision} >= $log_msg->{revision}) {
-			croak "Out of order: last >= current: ",
-				"$last->{revision} >= $log_msg->{revision}\n";
-		}
-		# Revert is needed for cases like:
-		# https://svn.musicpd.org/Jamming/trunk (r166:167), but
-		# I can't seem to reproduce something like that on a test...
-		sys(qw/svn revert -R ./);
-		assert_svn_wc_clean($last->{revision});
-		sys(@svn_up,"-r$log_msg->{revision}");
-		$last_commit = git_commit($log_msg, $last_commit, @parents);
-		$last = $log_msg;
-	}
-	close $svn_log->{fh};
-	$last->{commit} = $last_commit;
-	return $last;
-}
-
 sub fetch_lib {
 	my (@parents) = @_;
 	$SVN_URL ||= file_to_s("$GIT_SVN_DIR/info/url");
@@ -498,35 +403,10 @@ sub commit {
 			die "Failed to rev-parse $c\n";
 		}
 	}
-	$_use_lib ? commit_lib(@revs) : commit_cmd(@revs);
+	commit_lib(@revs);
 	print "Done committing ",scalar @revs," revisions to SVN\n";
 }
 
-sub commit_cmd {
-	my (@revs) = @_;
-
-	chdir $SVN_WC or croak "Unable to chdir $SVN_WC: $!\n";
-	my $info = svn_info('.');
-	my $fetched = fetch();
-	if ($info->{Revision} != $fetched->{revision}) {
-		print STDERR "There are new revisions that were fetched ",
-				"and need to be merged (or acknowledged) ",
-				"before committing.\n";
-		exit 1;
-	}
-	$info = svn_info('.');
-	read_uuid($info);
-	my $last = $fetched;
-	foreach my $c (@revs) {
-		my $mods = svn_checkout_tree($last, $c);
-		if (scalar @$mods == 0) {
-			print "Skipping, no changes detected\n";
-			next;
-		}
-		$last = svn_commit_tree($last, $c);
-	}
-}
-
 sub commit_lib {
 	my (@revs) = @_;
 	my ($r_last, $cmt_last) = svn_grab_base_rev();
@@ -649,32 +529,6 @@ sub dcommit {
 
 sub show_ignore {
 	$SVN_URL ||= file_to_s("$GIT_SVN_DIR/info/url");
-	$_use_lib ? show_ignore_lib() : show_ignore_cmd();
-}
-
-sub show_ignore_cmd {
-	require File::Find or die $!;
-	if (defined $_revision) {
-		die "-r/--revision option doesn't work unless the Perl SVN ",
-			"libraries are used\n";
-	}
-	chdir $SVN_WC or croak $!;
-	my %ign;
-	File::Find::find({wanted=>sub{if(lstat $_ && -d _ && -d "$_/.svn"){
-		s#^\./##;
-		@{$ign{$_}} = svn_propget_base('svn:ignore', $_);
-		}}, no_chdir=>1},'.');
-
-	print "\n# /\n";
-	foreach (@{$ign{'.'}}) { print '/',$_ if /\S/ }
-	delete $ign{'.'};
-	foreach my $i (sort keys %ign) {
-		print "\n# ",$i,"\n";
-		foreach (@{$ign{$i}}) { print '/',$i,'/',$_ if /\S/ }
-	}
-}
-
-sub show_ignore_lib {
 	my $repo;
 	$SVN ||= libsvn_connect($SVN_URL);
 	my $r = defined $_revision ? $_revision : $SVN->get_latest_revnum;
@@ -706,11 +560,7 @@ sub graft_branches {
 			}
 		}
 		unless ($_no_graft_copy) {
-			if ($_use_lib) {
-				graft_file_copy_lib($grafts,$l_map,$u);
-			} else {
-				graft_file_copy_cmd($grafts,$l_map,$u);
-			}
+			graft_file_copy_lib($grafts,$l_map,$u);
 		}
 	}
 	graft_tree_joins($grafts);
@@ -838,10 +688,6 @@ sub commit_diff_usage {
 }
 
 sub commit_diff {
-	if (!$_use_lib) {
-		print STDERR "commit-diff must be used with SVN libraries\n";
-		exit 1;
-	}
 	my $ta = shift or commit_diff_usage();
 	my $tb = shift or commit_diff_usage();
 	if (!eval { $SVN_URL = shift || file_to_s("$GIT_SVN_DIR/info/url") }) {
@@ -1042,8 +888,7 @@ sub complete_url_ls_init {
 		}
 		$var = $url . $var;
 	}
-	chomp(my @ls = $_use_lib ? libsvn_ls_fullurl($var)
-				: safe_qx(qw/svn ls --non-interactive/, $var));
+	my @ls = libsvn_ls_fullurl($var);
 	my $old = $GIT_SVN;
 	defined(my $pid = fork) or croak $!;
 	if (!$pid) {
@@ -1156,37 +1001,6 @@ sub graft_tree_joins {
 	});
 }
 
-# this isn't funky-filename safe, but good enough for now...
-sub graft_file_copy_cmd {
-	my ($grafts, $l_map, $u) = @_;
-	my $paths = $l_map->{$u};
-	my $pfx = common_prefix([keys %$paths]);
-	$SVN_URL ||= $u.$pfx;
-	my $pid = open my $fh, '-|';
-	defined $pid or croak $!;
-	unless ($pid) {
-		my @exec = qw/svn log -v/;
-		push @exec, "-r$_revision" if defined $_revision;
-		exec @exec, $u.$pfx or croak $!;
-	}
-	my ($r, $mp) = (undef, undef);
-	while (<$fh>) {
-		chomp;
-		if (/^\-{72}$/) {
-			$mp = $r = undef;
-		} elsif (/^r(\d+) \| /) {
-			$r = $1 unless defined $r;
-		} elsif (/^Changed paths:/) {
-			$mp = 1;
-		} elsif ($mp && m#^   [AR] /(\S.*?) \(from /(\S+?):(\d+)\)$#) {
-			my ($p1, $p0, $r0) = ($1, $2, $3);
-			my $c = find_graft_path_commit($paths, $p1, $r);
-			next unless $c;
-			find_graft_path_parents($grafts, $paths, $c, $p0, $r0);
-		}
-	}
-}
-
 sub graft_file_copy_lib {
 	my ($grafts, $l_map, $u) = @_;
 	my $tree_paths = $l_map->{$u};
@@ -1277,15 +1091,9 @@ sub graft_merge_msg {
 
 sub read_uuid {
 	return if $SVN_UUID;
-	if ($_use_lib) {
-		my $pool = SVN::Pool->new;
-		$SVN_UUID = $SVN->get_uuid($pool);
-		$pool->clear;
-	} else {
-		my $info = shift || svn_info('.');
-		$SVN_UUID = $info->{'Repository UUID'} or
-					croak "Repository UUID unreadable\n";
-	}
+	my $pool = SVN::Pool->new;
+	$SVN_UUID = $SVN->get_uuid($pool);
+	$pool->clear;
 }
 
 sub verify_ref {
@@ -1293,19 +1101,6 @@ sub verify_ref {
 	eval { command_oneline([ 'rev-parse', $ref ], { STDERR => 0 }) };
 }
 
-sub quiet_run {
-	my $pid = fork;
-	defined $pid or croak $!;
-	if (!$pid) {
-		open my $null, '>', '/dev/null' or croak $!;
-		open STDERR, '>&', $null or croak $!;
-		open STDOUT, '>&', $null or croak $!;
-		exec @_ or croak $!;
-	}
-	waitpid $pid, 0;
-	return $?;
-}
-
 sub repo_path_split {
 	my $full_url = shift;
 	$full_url =~ s#/+$##;
@@ -1317,21 +1112,8 @@ sub repo_path_split {
 			return ($u, $full_url);
 		}
 	}
-	if ($_use_lib) {
-		my $tmp = libsvn_connect($full_url);
-		return ($tmp->{repos_root}, $tmp->{svn_path});
-	} else {
-		my ($url, $path) = ($full_url =~ m!^([a-z\+]+://[^/]*)(.*)$!i);
-		$path =~ s#^/+##;
-		my @paths = split(m#/+#, $path);
-		while (quiet_run(qw/svn ls --non-interactive/, $url)) {
-			my $n = shift @paths || last;
-			$url .= "/$n";
-		}
-		push @repo_path_split_cache, qr/^(\Q$url\E)/;
-		$path = join('/',@paths);
-		return ($url, $path);
-	}
+	my $tmp = libsvn_connect($full_url);
+	return ($tmp->{repos_root}, $tmp->{svn_path});
 }
 
 sub setup_git_svn {
@@ -1347,31 +1129,6 @@ sub setup_git_svn {
 
 }
 
-sub assert_svn_wc_clean {
-	return if $_use_lib;
-	my ($svn_rev) = @_;
-	croak "$svn_rev is not an integer!\n" unless ($svn_rev =~ /^\d+$/);
-	my $lcr = svn_info('.')->{'Last Changed Rev'};
-	if ($svn_rev != $lcr) {
-		print STDERR "Checking for copy-tree ... ";
-		my @diff = grep(/^Index: /,(safe_qx(qw(svn diff),
-						"-r$lcr:$svn_rev")));
-		if (@diff) {
-			croak "Nope!  Expected r$svn_rev, got r$lcr\n";
-		} else {
-			print STDERR "OK!\n";
-		}
-	}
-	my @status = grep(!/^Performing status on external/,(`svn status`));
-	@status = grep(!/^\s*$/,@status);
-	@status = grep(!/^X/,@status) if $_no_ignore_ext;
-	if (scalar @status) {
-		print STDERR "Tree ($SVN_WC) is not clean:\n";
-		print STDERR $_ foreach @status;
-		croak;
-	}
-}
-
 sub get_tree_from_treeish {
 	my ($treeish) = @_;
 	croak "Not a sha1: $treeish\n" unless $treeish =~ /^$sha1$/o;
@@ -1393,28 +1150,8 @@ sub get_tree_from_treeish {
 	return $expected;
 }
 
-sub assert_tree {
-	return if $_use_lib;
-	my ($treeish) = @_;
-	my $expected = get_tree_from_treeish($treeish);
-
-	my $tmpindex = $GIT_SVN_INDEX.'.assert-tmp';
-	if (-e $tmpindex) {
-		unlink $tmpindex or croak $!;
-	}
-	my $old_index = set_index($tmpindex);
-	index_changes(1);
-	my $tree = command_oneline('write-tree');
-	restore_index($old_index);
-	if ($tree ne $expected) {
-		croak "Tree mismatch, Got: $tree, Expected: $expected\n";
-	}
-	unlink $tmpindex;
-}
-
 sub get_diff {
 	my ($from, $treeish) = @_;
-	assert_tree($from);
 	print "diff-tree $from $treeish\n";
 	my @diff_tree = qw(diff-tree -z -r);
 	if ($_cp_similarity) {
@@ -1465,145 +1202,6 @@ sub get_diff {
 	return \@mods;
 }
 
-sub svn_check_prop_executable {
-	my $m = shift;
-	return if -l $m->{file_b};
-	if ($m->{mode_b} =~ /755$/) {
-		chmod((0755 &~ umask),$m->{file_b}) or croak $!;
-		if ($m->{mode_a} !~ /755$/) {
-			sys(qw(svn propset svn:executable 1), $m->{file_b});
-		}
-		-x $m->{file_b} or croak "$m->{file_b} is not executable!\n";
-	} elsif ($m->{mode_b} !~ /755$/ && $m->{mode_a} =~ /755$/) {
-		sys(qw(svn propdel svn:executable), $m->{file_b});
-		chmod((0644 &~ umask),$m->{file_b}) or croak $!;
-		-x $m->{file_b} and croak "$m->{file_b} is executable!\n";
-	}
-}
-
-sub svn_ensure_parent_path {
-	my $dir_b = dirname(shift);
-	svn_ensure_parent_path($dir_b) if ($dir_b ne File::Spec->curdir);
-	mkpath([$dir_b]) unless (-d $dir_b);
-	sys(qw(svn add -N), $dir_b) unless (-d "$dir_b/.svn");
-}
-
-sub precommit_check {
-	my $mods = shift;
-	my (%rm_file, %rmdir_check, %added_check);
-
-	my %o = ( D => 0, R => 1, C => 2, A => 3, M => 3, T => 3 );
-	foreach my $m (sort { $o{$a->{chg}} <=> $o{$b->{chg}} } @$mods) {
-		if ($m->{chg} eq 'R') {
-			if (-d $m->{file_b}) {
-				err_dir_to_file("$m->{file_a} => $m->{file_b}");
-			}
-			# dir/$file => dir/file/$file
-			my $dirname = dirname($m->{file_b});
-			while ($dirname ne File::Spec->curdir) {
-				if ($dirname ne $m->{file_a}) {
-					$dirname = dirname($dirname);
-					next;
-				}
-				err_file_to_dir("$m->{file_a} => $m->{file_b}");
-			}
-			# baz/zzz => baz (baz is a file)
-			$dirname = dirname($m->{file_a});
-			while ($dirname ne File::Spec->curdir) {
-				if ($dirname ne $m->{file_b}) {
-					$dirname = dirname($dirname);
-					next;
-				}
-				err_dir_to_file("$m->{file_a} => $m->{file_b}");
-			}
-		}
-		if ($m->{chg} =~ /^(D|R)$/) {
-			my $t = $1 eq 'D' ? 'file_b' : 'file_a';
-			$rm_file{ $m->{$t} } = 1;
-			my $dirname = dirname( $m->{$t} );
-			my $basename = basename( $m->{$t} );
-			$rmdir_check{$dirname}->{$basename} = 1;
-		} elsif ($m->{chg} =~ /^(?:A|C)$/) {
-			if (-d $m->{file_b}) {
-				err_dir_to_file($m->{file_b});
-			}
-			my $dirname = dirname( $m->{file_b} );
-			my $basename = basename( $m->{file_b} );
-			$added_check{$dirname}->{$basename} = 1;
-			while ($dirname ne File::Spec->curdir) {
-				if ($rm_file{$dirname}) {
-					err_file_to_dir($m->{file_b});
-				}
-				$dirname = dirname $dirname;
-			}
-		}
-	}
-	return (\%rmdir_check, \%added_check);
-
-	sub err_dir_to_file {
-		my $file = shift;
-		print STDERR "Node change from directory to file ",
-				"is not supported by Subversion: ",$file,"\n";
-		exit 1;
-	}
-	sub err_file_to_dir {
-		my $file = shift;
-		print STDERR "Node change from file to directory ",
-				"is not supported by Subversion: ",$file,"\n";
-		exit 1;
-	}
-}
-
-
-sub svn_checkout_tree {
-	my ($from, $treeish) = @_;
-	my $mods = get_diff($from->{commit}, $treeish);
-	return $mods unless (scalar @$mods);
-	my ($rm, $add) = precommit_check($mods);
-
-	my %o = ( D => 1, R => 0, C => -1, A => 3, M => 3, T => 3 );
-	foreach my $m (sort { $o{$a->{chg}} <=> $o{$b->{chg}} } @$mods) {
-		if ($m->{chg} eq 'C') {
-			svn_ensure_parent_path( $m->{file_b} );
-			sys(qw(svn cp),		$m->{file_a}, $m->{file_b});
-			apply_mod_line_blob($m);
-			svn_check_prop_executable($m);
-		} elsif ($m->{chg} eq 'D') {
-			sys(qw(svn rm --force), $m->{file_b});
-		} elsif ($m->{chg} eq 'R') {
-			svn_ensure_parent_path( $m->{file_b} );
-			sys(qw(svn mv --force), $m->{file_a}, $m->{file_b});
-			apply_mod_line_blob($m);
-			svn_check_prop_executable($m);
-		} elsif ($m->{chg} eq 'M') {
-			apply_mod_line_blob($m);
-			svn_check_prop_executable($m);
-		} elsif ($m->{chg} eq 'T') {
-			svn_check_prop_executable($m);
-			apply_mod_line_blob($m);
-			if ($m->{mode_a} =~ /^120/ && $m->{mode_b} !~ /^120/) {
-				sys(qw(svn propdel svn:special), $m->{file_b});
-			} else {
-				sys(qw(svn propset svn:special *),$m->{file_b});
-			}
-		} elsif ($m->{chg} eq 'A') {
-			svn_ensure_parent_path( $m->{file_b} );
-			apply_mod_line_blob($m);
-			sys(qw(svn add), $m->{file_b});
-			svn_check_prop_executable($m);
-		} else {
-			croak "Invalid chg: $m->{chg}\n";
-		}
-	}
-
-	assert_tree($treeish);
-	if ($_rmdir) { # remove empty directories
-		handle_rmdir($rm, $add);
-	}
-	assert_tree($treeish);
-	return $mods;
-}
-
 sub libsvn_checkout_tree {
 	my ($from, $treeish, $ed) = @_;
 	my $mods = get_diff($from, $treeish);
@@ -1621,44 +1219,6 @@ sub libsvn_checkout_tree {
 	return $mods;
 }
 
-# svn ls doesn't work with respect to the current working tree, but what's
-# in the repository.  There's not even an option for it... *sigh*
-# (added files don't show up and removed files remain in the ls listing)
-sub svn_ls_current {
-	my ($dir, $rm, $add) = @_;
-	chomp(my @ls = safe_qx('svn','ls',$dir));
-	my @ret = ();
-	foreach (@ls) {
-		s#/$##; # trailing slashes are evil
-		push @ret, $_ unless $rm->{$dir}->{$_};
-	}
-	if (exists $add->{$dir}) {
-		push @ret, keys %{$add->{$dir}};
-	}
-	return \@ret;
-}
-
-sub handle_rmdir {
-	my ($rm, $add) = @_;
-
-	foreach my $dir (sort {length $b <=> length $a} keys %$rm) {
-		my $ls = svn_ls_current($dir, $rm, $add);
-		next if (scalar @$ls);
-		sys(qw(svn rm --force),$dir);
-
-		my $dn = dirname $dir;
-		$rm->{ $dn }->{ basename $dir } = 1;
-		$ls = svn_ls_current($dn, $rm, $add);
-		while (scalar @$ls == 0 && $dn ne File::Spec->curdir) {
-			sys(qw(svn rm --force),$dn);
-			$dir = basename $dn;
-			$dn = dirname $dn;
-			$rm->{ $dn }->{ $dir } = 1;
-			$ls = svn_ls_current($dn, $rm, $add);
-		}
-	}
-}
-
 sub get_commit_message {
 	my ($commit, $commit_msg) = (@_);
 	my %log_msg = ( msg => '' );
@@ -1704,56 +1264,6 @@ sub set_svn_commit_env {
 	}
 }
 
-sub svn_commit_tree {
-	my ($last, $commit) = @_;
-	my $commit_msg = "$GIT_SVN_DIR/.svn-commit.tmp.$$";
-	my $log_msg = get_commit_message($commit, $commit_msg);
-	my ($oneline) = ($log_msg->{msg} =~ /([^\n\r]+)/);
-	print "Committing $commit: $oneline\n";
-
-	set_svn_commit_env();
-	my @ci_output = safe_qx(qw(svn commit -F),$commit_msg);
-	$ENV{LC_ALL} = 'C';
-	unlink $commit_msg;
-	my ($committed) = ($ci_output[$#ci_output] =~ /(\d+)/);
-	if (!defined $committed) {
-		my $out = join("\n",@ci_output);
-		print STDERR "W: Trouble parsing \`svn commit' output:\n\n",
-				$out, "\n\nAssuming English locale...";
-		($committed) = ($out =~ /^Committed revision \d+\./sm);
-		defined $committed or die " FAILED!\n",
-			"Commit output failed to parse committed revision!\n",
-		print STDERR " OK\n";
-	}
-
-	my @svn_up = qw(svn up);
-	push @svn_up, '--ignore-externals' unless $_no_ignore_ext;
-	if ($_optimize_commits && ($committed == ($last->{revision} + 1))) {
-		push @svn_up, "-r$committed";
-		sys(@svn_up);
-		my $info = svn_info('.');
-		my $date = $info->{'Last Changed Date'} or die "Missing date\n";
-		if ($info->{'Last Changed Rev'} != $committed) {
-			croak "$info->{'Last Changed Rev'} != $committed\n"
-		}
-		my ($Y,$m,$d,$H,$M,$S,$tz) = ($date =~
-					/(\d{4})\-(\d\d)\-(\d\d)\s
-					 (\d\d)\:(\d\d)\:(\d\d)\s([\-\+]\d+)/x)
-					 or croak "Failed to parse date: $date\n";
-		$log_msg->{date} = "$tz $Y-$m-$d $H:$M:$S";
-		$log_msg->{author} = $info->{'Last Changed Author'};
-		$log_msg->{revision} = $committed;
-		$log_msg->{msg} .= "\n";
-		$log_msg->{parents} = [ $last->{commit} ];
-		$log_msg->{commit} = git_commit($log_msg, $commit);
-		return $log_msg;
-	}
-	# resync immediately
-	push @svn_up, "-r$last->{revision}";
-	sys(@svn_up);
-	return fetch("$committed=$commit");
-}
-
 sub rev_list_raw {
 	my ($fh, $c) = command_output_pipe(qw/rev-list --pretty=raw/, @_);
 	return { fh => $fh, ctx => $c, t => { } };
@@ -1782,177 +1292,6 @@ sub next_rev_list_entry {
 	return ($x != $rl->{t}) ? $x : undef;
 }
 
-# read the entire log into a temporary file (which is removed ASAP)
-# and store the file handle + parser state
-sub svn_log_raw {
-	my (@log_args) = @_;
-	my $log_fh = IO::File->new_tmpfile or croak $!;
-	my $pid = fork;
-	defined $pid or croak $!;
-	if (!$pid) {
-		open STDOUT, '>&', $log_fh or croak $!;
-		exec (qw(svn log), @log_args) or croak $!
-	}
-	waitpid $pid, 0;
-	croak $? if $?;
-	seek $log_fh, 0, 0 or croak $!;
-	return { state => 'sep', fh => $log_fh };
-}
-
-sub next_log_entry {
-	my $log = shift; # retval of svn_log_raw()
-	my $ret = undef;
-	my $fh = $log->{fh};
-
-	while (<$fh>) {
-		chomp;
-		if (/^\-{72}$/) {
-			if ($log->{state} eq 'msg') {
-				if ($ret->{lines}) {
-					$ret->{msg} .= $_."\n";
-					unless(--$ret->{lines}) {
-						$log->{state} = 'sep';
-					}
-				} else {
-					croak "Log parse error at: $_\n",
-						$ret->{revision},
-						"\n";
-				}
-				next;
-			}
-			if ($log->{state} ne 'sep') {
-				croak "Log parse error at: $_\n",
-					"state: $log->{state}\n",
-					$ret->{revision},
-					"\n";
-			}
-			$log->{state} = 'rev';
-
-			# if we have an empty log message, put something there:
-			if ($ret) {
-				$ret->{msg} ||= "\n";
-				delete $ret->{lines};
-				return $ret;
-			}
-			next;
-		}
-		if ($log->{state} eq 'rev' && s/^r(\d+)\s*\|\s*//) {
-			my $rev = $1;
-			my ($author, $date, $lines) = split(/\s*\|\s*/, $_, 3);
-			($lines) = ($lines =~ /(\d+)/);
-			$date = '1970-01-01 00:00:00 +0000'
-				if ($_ignore_nodate && $date eq '(no date)');
-			my ($Y,$m,$d,$H,$M,$S,$tz) = ($date =~
-					/(\d{4})\-(\d\d)\-(\d\d)\s
-					 (\d\d)\:(\d\d)\:(\d\d)\s([\-\+]\d+)/x)
-					 or croak "Failed to parse date: $date\n";
-			$ret = {	revision => $rev,
-					date => "$tz $Y-$m-$d $H:$M:$S",
-					author => $author,
-					lines => $lines,
-					msg => '' };
-			if (defined $_authors && ! defined $users{$author}) {
-				die "Author: $author not defined in ",
-						"$_authors file\n";
-			}
-			$log->{state} = 'msg_start';
-			next;
-		}
-		# skip the first blank line of the message:
-		if ($log->{state} eq 'msg_start' && /^$/) {
-			$log->{state} = 'msg';
-		} elsif ($log->{state} eq 'msg') {
-			if ($ret->{lines}) {
-				$ret->{msg} .= $_."\n";
-				unless (--$ret->{lines}) {
-					$log->{state} = 'sep';
-				}
-			} else {
-				croak "Log parse error at: $_\n",
-					$ret->{revision},"\n";
-			}
-		}
-	}
-	return $ret;
-}
-
-sub svn_info {
-	my $url = shift || $SVN_URL;
-
-	my $pid = open my $info_fh, '-|';
-	defined $pid or croak $!;
-
-	if ($pid == 0) {
-		exec(qw(svn info),$url) or croak $!;
-	}
-
-	my $ret = {};
-	# only single-lines seem to exist in svn info output
-	while (<$info_fh>) {
-		chomp $_;
-		if (m#^([^:]+)\s*:\s*(\S.*)$#) {
-			$ret->{$1} = $2;
-			push @{$ret->{-order}}, $1;
-		}
-	}
-	close $info_fh or croak $?;
-	return $ret;
-}
-
-sub sys { system(@_) == 0 or croak $? }
-
-sub do_update_index {
-	my ($z_cmd, $cmd, $no_text_base) = @_;
-
-	my ($p, $pctx) = command_output_pipe(@$z_cmd);
-
-	my ($ui, $uctx) = command_input_pipe('update-index',
-	                                     "--$cmd",'-z','--stdin');
-	local $/ = "\0";
-	while (my $x = <$p>) {
-		chomp $x;
-		if (!$no_text_base && lstat $x && ! -l _ &&
-				svn_propget_base('svn:keywords', $x)) {
-			my $mode = -x _ ? 0755 : 0644;
-			my ($v,$d,$f) = File::Spec->splitpath($x);
-			my $tb = File::Spec->catfile($d, '.svn', 'tmp',
-						'text-base',"$f.svn-base");
-			$tb =~ s#^/##;
-			unless (-f $tb) {
-				$tb = File::Spec->catfile($d, '.svn',
-						'text-base',"$f.svn-base");
-				$tb =~ s#^/##;
-			}
-			my @s = stat($x);
-			unlink $x or croak $!;
-			copy($tb, $x);
-			chmod(($mode &~ umask), $x) or croak $!;
-			utime $s[8], $s[9], $x;
-		}
-		print $ui $x,"\0";
-	}
-	command_close_pipe($p, $pctx);
-	command_close_pipe($ui, $uctx);
-}
-
-sub index_changes {
-	return if $_use_lib;
-
-	if (!-f "$GIT_SVN_DIR/info/exclude") {
-		open my $fd, '>>', "$GIT_SVN_DIR/info/exclude" or croak $!;
-		print $fd '.svn',"\n";
-		close $fd or croak $!;
-	}
-	my $no_text_base = shift;
-	do_update_index([qw/diff-files --name-only -z/],
-			'remove',
-			$no_text_base);
-	do_update_index([qw/ls-files -z --others/,
-				"--exclude-from=$GIT_SVN_DIR/info/exclude"],
-			'add',
-			$no_text_base);
-}
-
 sub s_to_file {
 	my ($str, $file, $mode) = @_;
 	open my $fd,'>',$file or croak $!;
@@ -1978,18 +1317,6 @@ sub assert_revision_unknown {
 	}
 }
 
-sub trees_eq {
-	my ($x, $y) = @_;
-	my @x = command(qw/cat-file commit/,$x);
-	my @y = command(qw/cat-file commit/,$y);
-	if (($y[0] ne $x[0]) || $x[0] ne "tree $sha1"
-		             || $y[0] ne "tree $sha1") {
-		print STDERR "Trees not equal: $y[0] != $x[0]\n";
-		return 0
-	}
-	return 1;
-}
-
 sub git_commit {
 	my ($log_msg, @parents) = @_;
 	assert_revision_unknown($log_msg->{revision});
@@ -2014,12 +1341,10 @@ sub git_commit {
 	my $tree = $log_msg->{tree};
 	if (!defined $tree) {
 		my $index = set_index($GIT_SVN_INDEX);
-		index_changes();
 		$tree = command_oneline('write-tree');
 		croak $? if $?;
 		restore_index($index);
 	}
-
 	# just in case we clobber the existing ref, we still want that ref
 	# as our parent:
 	if (my $cur = verify_ref("refs/remotes/$GIT_SVN^0")) {
@@ -2104,102 +1429,6 @@ sub set_commit_env {
 	$ENV{GIT_AUTHOR_DATE} = $ENV{GIT_COMMITTER_DATE} = $log_msg->{date};
 }
 
-sub apply_mod_line_blob {
-	my $m = shift;
-	if ($m->{mode_b} =~ /^120/) {
-		blob_to_symlink($m->{sha1_b}, $m->{file_b});
-	} else {
-		blob_to_file($m->{sha1_b}, $m->{file_b});
-	}
-}
-
-sub blob_to_symlink {
-	my ($blob, $link) = @_;
-	defined $link or croak "\$link not defined!\n";
-	croak "Not a sha1: $blob\n" unless $blob =~ /^$sha1$/o;
-	if (-l $link || -f _) {
-		unlink $link or croak $!;
-	}
-
-	my $dest = `git-cat-file blob $blob`; # no newline, so no chomp
-	symlink $dest, $link or croak $!;
-}
-
-sub blob_to_file {
-	my ($blob, $file) = @_;
-	defined $file or croak "\$file not defined!\n";
-	croak "Not a sha1: $blob\n" unless $blob =~ /^$sha1$/o;
-	if (-l $file || -f _) {
-		unlink $file or croak $!;
-	}
-
-	open my $blob_fh, '>', $file or croak "$!: $file\n";
-	my $pid = fork;
-	defined $pid or croak $!;
-
-	if ($pid == 0) {
-		open STDOUT, '>&', $blob_fh or croak $!;
-		exec('git-cat-file','blob',$blob) or croak $!;
-	}
-	waitpid $pid, 0;
-	croak $? if $?;
-
-	close $blob_fh or croak $!;
-}
-
-sub safe_qx {
-	my $pid = open my $child, '-|';
-	defined $pid or croak $!;
-	if ($pid == 0) {
-		exec(@_) or croak $!;
-	}
-	my @ret = (<$child>);
-	close $child or croak $?;
-	die $? if $?; # just in case close didn't error out
-	return wantarray ? @ret : join('',@ret);
-}
-
-sub svn_compat_check {
-	if ($_follow_parent) {
-		print STDERR 'E: --follow-parent functionality is only ',
-				"available when SVN libraries are used\n";
-		exit 1;
-	}
-	my @co_help = safe_qx(qw(svn co -h));
-	unless (grep /ignore-externals/,@co_help) {
-		print STDERR "W: Installed svn version does not support ",
-				"--ignore-externals\n";
-		$_no_ignore_ext = 1;
-	}
-	if (grep /usage: checkout URL\[\@REV\]/,@co_help) {
-		$_svn_co_url_revs = 1;
-	}
-	if (grep /\[TARGET\[\@REV\]\.\.\.\]/, `svn propget -h`) {
-		$_svn_pg_peg_revs = 1;
-	}
-
-	# I really, really hope nobody hits this...
-	unless (grep /stop-on-copy/, (safe_qx(qw(svn log -h)))) {
-		print STDERR <<'';
-W: The installed svn version does not support the --stop-on-copy flag in
-   the log command.
-   Lets hope the directory you're tracking is not a branch or tag
-   and was never moved within the repository...
-
-		$_no_stop_copy = 1;
-	}
-}
-
-# *sigh*, new versions of svn won't honor -r<rev> without URL@<rev>,
-# (and they won't honor URL@<rev> without -r<rev>, too!)
-sub svn_cmd_checkout {
-	my ($url, $rev, $dir) = @_;
-	my @cmd = ('svn','co', "-r$rev");
-	push @cmd, '--ignore-externals' unless $_no_ignore_ext;
-	$url .= "\@$rev" if $_svn_co_url_revs;
-	sys(@cmd, $url, $dir);
-}
-
 sub check_upgrade_needed {
 	if (!-r $REVDB) {
 		-d $GIT_SVN_DIR or mkpath([$GIT_SVN_DIR]);
@@ -2277,12 +1506,6 @@ sub rload_authors {
 	close $authors or croak $!;
 }
 
-sub svn_propget_base {
-	my ($p, $f) = @_;
-	$f .= '@BASE' if $_svn_pg_peg_revs;
-	return safe_qx(qw/svn propget/, $p, $f);
-}
-
 sub git_svn_each {
 	my $sub = shift;
 	foreach (command(qw/rev-parse --symbolic --all/)) {
@@ -2682,33 +1905,6 @@ sub show_commit_normal {
 	}
 }
 
-sub libsvn_load {
-	return unless $_use_lib;
-	$_use_lib = eval {
-		require SVN::Core;
-		if ($SVN::Core::VERSION lt '1.1.0') {
-			die "Need SVN::Core 1.1.0 or better ",
-					"(got $SVN::Core::VERSION) ",
-					"Falling back to command-line svn\n";
-		}
-		require SVN::Ra;
-		require SVN::Delta;
-		push @SVN::Git::Editor::ISA, 'SVN::Delta::Editor';
-		push @SVN::Git::Fetcher::ISA, 'SVN::Delta::Editor';
-		*SVN::Git::Fetcher::process_rm = *process_rm;
-		my $kill_stupid_warnings = $SVN::Node::none.$SVN::Node::file.
-					$SVN::Node::dir.$SVN::Node::unknown.
-					$SVN::Node::none.$SVN::Node::file.
-					$SVN::Node::dir.$SVN::Node::unknown.
-					$SVN::Auth::SSL::CNMISMATCH.
-					$SVN::Auth::SSL::NOTYETVALID.
-					$SVN::Auth::SSL::EXPIRED.
-					$SVN::Auth::SSL::UNKNOWNCA.
-					$SVN::Auth::SSL::OTHER;
-		1;
-	};
-}
-
 sub _simple_prompt {
 	my ($cred, $realm, $default_username, $may_save, $pool) = @_;
 	$may_save = undef if $_no_auth_cache;
@@ -3231,18 +2427,11 @@ sub revisions_eq {
 	my ($path, $r0, $r1) = @_;
 	return 1 if $r0 == $r1;
 	my $nr = 0;
-	if ($_use_lib) {
-		# should be OK to use Pool here (r1 - r0) should be small
-		my $pool = SVN::Pool->new;
-		libsvn_get_log($SVN, [$path], $r0, $r1,
-				0, 0, 1, sub {$nr++}, $pool);
-		$pool->clear;
-	} else {
-		my ($url, undef) = repo_path_split($SVN_URL);
-		my $svn_log = svn_log_raw("$url/$path","-r$r0:$r1");
-		while (next_log_entry($svn_log)) { $nr++ }
-		close $svn_log->{fh};
-	}
+	# should be OK to use Pool here (r1 - r0) should be small
+	my $pool = SVN::Pool->new;
+	libsvn_get_log($SVN, [$path], $r0, $r1,
+			0, 0, 1, sub {$nr++}, $pool);
+	$pool->clear;
 	return 0 if ($nr > 1);
 	return 1;
 }
@@ -3526,6 +2715,19 @@ sub copy_remote_ref {
 				"refs/remotes/$GIT_SVN on $origin\n";
 	}
 }
+
+{
+	my $kill_stupid_warnings = $SVN::Node::none.$SVN::Node::file.
+				$SVN::Node::dir.$SVN::Node::unknown.
+				$SVN::Node::none.$SVN::Node::file.
+				$SVN::Node::dir.$SVN::Node::unknown.
+				$SVN::Auth::SSL::CNMISMATCH.
+				$SVN::Auth::SSL::NOTYETVALID.
+				$SVN::Auth::SSL::EXPIRED.
+				$SVN::Auth::SSL::UNKNOWNCA.
+				$SVN::Auth::SSL::OTHER;
+}
+
 package SVN::Git::Fetcher;
 use vars qw/@ISA/;
 use strict;
@@ -3963,13 +3165,7 @@ __END__
 
 Data structures:
 
-$svn_log hashref (as returned by svn_log_raw)
-{
-	fh => file handle of the log file,
-	state => state of the log file parser (sep/msg/rev/msg_start...)
-}
-
-$log_msg hashref as returned by next_log_entry($svn_log)
+$log_msg hashref as returned by libsvn_log_entry()
 {
 	msg => 'whitespace-formatted log entry
 ',						# trailing newline is preserved
@@ -3978,7 +3174,6 @@ $log_msg hashref as returned by next_log_entry($svn_log)
 	author => 'committer name'
 };
 
-
 @mods = array of diff-index line hashes, each element represents one line
 	of diff-index output
 
diff --git a/t/Makefile b/t/Makefile
index c9bd9a4690..250a19019c 100644
--- a/t/Makefile
+++ b/t/Makefile
@@ -23,13 +23,9 @@ clean:
 
 # we can test NO_OPTIMIZE_COMMITS independently of LC_ALL
 full-svn-test:
-	$(MAKE) $(TSVN) GIT_SVN_NO_LIB=0 GIT_SVN_DELTA_FETCH=1 \
-					GIT_SVN_NO_OPTIMIZE_COMMITS=1 LC_ALL=C
-	$(MAKE) $(TSVN) GIT_SVN_NO_LIB=1 GIT_SVN_NO_OPTIMIZE_COMMITS=1 LC_ALL=C
-	$(MAKE) $(TSVN) GIT_SVN_NO_LIB=1 GIT_SVN_NO_OPTIMIZE_COMMITS=0 \
-							LC_ALL=en_US.UTF-8
-	$(MAKE) $(TSVN) GIT_SVN_NO_LIB=0 GIT_SVN_NO_OPTIMIZE_COMMITS=0 \
-							LC_ALL=en_US.UTF-8
+	$(MAKE) $(TSVN) GIT_SVN_DELTA_FETCH=1 \
+				GIT_SVN_NO_OPTIMIZE_COMMITS=1 LC_ALL=C
+	$(MAKE) $(TSVN) GIT_SVN_NO_OPTIMIZE_COMMITS=0 LC_ALL=en_US.UTF-8
 
 .PHONY: $(T) clean
 .NOTPARALLEL:
diff --git a/t/lib-git-svn.sh b/t/lib-git-svn.sh
index 63c670304f..99ada71349 100644
--- a/t/lib-git-svn.sh
+++ b/t/lib-git-svn.sh
@@ -7,17 +7,18 @@ then
 	exit
 fi
 
+perl -e 'use SVN::Core; $SVN::Core::VERSION gt "1.1.0" or die' >/dev/null 2>&1
+if test $? -ne 0
+then
+	test_expect_success 'Perl SVN libraries not found, skipping test' :
+	test_done
+	exit
+fi
+
 GIT_DIR=$PWD/.git
 GIT_SVN_DIR=$GIT_DIR/svn/git-svn
 SVN_TREE=$GIT_SVN_DIR/svn-tree
 
-perl -e 'use SVN::Core' >/dev/null 2>&1
-if test $? -ne 0
-then
-   echo 'Perl SVN libraries not found, tests requiring those will be skipped'
-   GIT_SVN_NO_LIB=1
-fi
-
 svnadmin >/dev/null 2>&1
 if test $? -ne 1
 then
diff --git a/t/t9100-git-svn-basic.sh b/t/t9100-git-svn-basic.sh
index f9de232366..0fc462e5fe 100755
--- a/t/t9100-git-svn-basic.sh
+++ b/t/t9100-git-svn-basic.sh
@@ -229,9 +229,7 @@ tree d667270a1f7b109f5eb3aaea21ede14b56bfdd6e
 tree 8f51f74cf0163afc9ad68a4b1537288c4558b5a4
 EOF
 
-if test -z "$GIT_SVN_NO_LIB" || test "$GIT_SVN_NO_LIB" -eq 0; then
-	echo tree 4b825dc642cb6eb9a060e54bf8d69288fbee4904 >> expected
-fi
+echo tree 4b825dc642cb6eb9a060e54bf8d69288fbee4904 >> expected
 
 test_expect_success "$name" "diff -u a expected"
 
diff --git a/t/t9104-git-svn-follow-parent.sh b/t/t9104-git-svn-follow-parent.sh
index 01488ff78a..8d2e2fec39 100755
--- a/t/t9104-git-svn-follow-parent.sh
+++ b/t/t9104-git-svn-follow-parent.sh
@@ -6,13 +6,6 @@
 test_description='git-svn --follow-parent fetching'
 . ./lib-git-svn.sh
 
-if test -n "$GIT_SVN_NO_LIB" && test "$GIT_SVN_NO_LIB" -ne 0
-then
-	echo 'Skipping: --follow-parent needs SVN libraries'
-	test_done
-	exit 0
-fi
-
 test_expect_success 'initialize repo' "
 	mkdir import &&
 	cd import &&
diff --git a/t/t9105-git-svn-commit-diff.sh b/t/t9105-git-svn-commit-diff.sh
index 746c8277d0..6323c7e3ac 100755
--- a/t/t9105-git-svn-commit-diff.sh
+++ b/t/t9105-git-svn-commit-diff.sh
@@ -4,13 +4,6 @@
 test_description='git-svn commit-diff'
 . ./lib-git-svn.sh
 
-if test -n "$GIT_SVN_NO_LIB" && test "$GIT_SVN_NO_LIB" -ne 0
-then
-	echo 'Skipping: commit-diff needs SVN libraries'
-	test_done
-	exit 0
-fi
-
 test_expect_success 'initialize repo' "
 	mkdir import &&
 	cd import &&
diff --git a/t/t9106-git-svn-commit-diff-clobber.sh b/t/t9106-git-svn-commit-diff-clobber.sh
index 58698b3f29..59b6425ce4 100755
--- a/t/t9106-git-svn-commit-diff-clobber.sh
+++ b/t/t9106-git-svn-commit-diff-clobber.sh
@@ -4,13 +4,6 @@
 test_description='git-svn commit-diff clobber'
 . ./lib-git-svn.sh
 
-if test -n "$GIT_SVN_NO_LIB" && test "$GIT_SVN_NO_LIB" -ne 0
-then
-	echo 'Skipping: commit-diff clobber needs SVN libraries'
-	test_done
-	exit 0
-fi
-
 test_expect_success 'initialize repo' "
 	mkdir import &&
 	cd import &&