chore(3p/git): Unvendor git and track patches instead r/2903

This was vendored a long time ago under the expectation that keeping
it in sync with cgit would be easier this way, but it has proven not
to be a big issue.

On the other hand, a vendored copy of git is an annoying maintenance
burden. It is much easier to rebase the single (dottime) patch that we
have.

This removes the vendored copy of git and instead passes the git
source code to cgit via `pkgs.srcOnly`, which includes the applied
patch so that cgit can continue rendering dottime.

Change-Id: If31f62dea7ce688fd1b9050204e9378019775f2b

1 files changed, 0 insertions, 605 deletions

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 c961444d4c..0000000000
--- 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.