git-remote.perl - git - Git at Google

 #!/usr/bin/perl -w

 use Git;
 my $git = Git->repository();

 sub add_remote_config {
 	my ($hash, $name, $what, $value) = @_;
 	if ($what eq 'url') {
 		if (exists $hash->{$name}{'URL'}) {
 			print STDERR "Warning: more than one remote.$name.url\n";
 		}
 		$hash->{$name}{'URL'} = $value;
 	}
 	elsif ($what eq 'fetch') {
 		$hash->{$name}{'FETCH'} ||= [];
 		push @{$hash->{$name}{'FETCH'}}, $value;
 	}
 	elsif ($what eq 'push') {
 		$hash->{$name}{'PUSH'} ||= [];
 		push @{$hash->{$name}{'PUSH'}}, $value;
 	}
 	if (!exists $hash->{$name}{'SOURCE'}) {
 		$hash->{$name}{'SOURCE'} = 'config';
 	}
 }

 sub add_remote_remotes {
 	my ($hash, $file, $name) = @_;

 	if (exists $hash->{$name}) {
 		$hash->{$name}{'WARNING'} = 'ignored due to config';
 		return;
 	}

 	my $fh;
 	if (!open($fh, '<', $file)) {
 		print STDERR "Warning: cannot open $file\n";
 		return;
 	}
 	my $it = { 'SOURCE' => 'remotes' };
 	$hash->{$name} = $it;
 	while (<$fh>) {
 		chomp;
 		if (/^URL:\s*(.*)$/) {
 			# Having more than one is Ok -- it is used for push.
 			if (! exists $it->{'URL'}) {
 				$it->{'URL'} = $1;
 			}
 		}
 		elsif (/^Push:\s*(.*)$/) {
 			$it->{'PUSH'} ||= [];
 			push @{$it->{'PUSH'}}, $1;
 		}
 		elsif (/^Pull:\s*(.*)$/) {
 			$it->{'FETCH'} ||= [];
 			push @{$it->{'FETCH'}}, $1;
 		}
 		elsif (/^\#/) {
 			; # ignore
 		}
 		else {
 			print STDERR "Warning: funny line in $file: $_\n";
 		}
 	}
 	close($fh);
 }

 sub list_remote {
 	my ($git) = @_;
 	my %seen = ();
 	my @remotes = eval {
 		$git->command(qw(config --get-regexp), '^remote\.');
 	};
 	for (@remotes) {
 		if (/^remote\.(\S+?)\.([^.\s]+)\s+(.*)$/) {
 			add_remote_config(\%seen, $1, $2, $3);
 		}
 	}

 	my $dir = $git->repo_path() . "/remotes";
 	if (opendir(my $dh, $dir)) {
 		local $_;
 		while ($_ = readdir($dh)) {
 			chomp;
 			next if (! -f "$dir/$_" || ! -r _);
 			add_remote_remotes(\%seen, "$dir/$_", $_);
 		}
 	}

 	return \%seen;
 }

 sub add_branch_config {
 	my ($hash, $name, $what, $value) = @_;
 	if ($what eq 'remote') {
 		if (exists $hash->{$name}{'REMOTE'}) {
 			print STDERR "Warning: more than one branch.$name.remote\n";
 		}
 		$hash->{$name}{'REMOTE'} = $value;
 	}
 	elsif ($what eq 'merge') {
 		$hash->{$name}{'MERGE'} ||= [];
 		push @{$hash->{$name}{'MERGE'}}, $value;
 	}
 }

 sub list_branch {
 	my ($git) = @_;
 	my %seen = ();
 	my @branches = eval {
 		$git->command(qw(config --get-regexp), '^branch\.');
 	};
 	for (@branches) {
 		if (/^branch\.([^.]*)\.(\S*)\s+(.*)$/) {
 			add_branch_config(\%seen, $1, $2, $3);
 		}
 	}

 	return \%seen;
 }

 my $remote = list_remote($git);
 my $branch = list_branch($git);

 sub update_ls_remote {
 	my ($harder, $info) = @_;

 	return if (($harder == 0) ||
 		   (($harder == 1) && exists $info->{'LS_REMOTE'}));

 	my @ref = map {
 		s|^[0-9a-f]{40}\s+refs/heads/||;
 		$_;
 	} $git->command(qw(ls-remote --heads), $info->{'URL'});
 	$info->{'LS_REMOTE'} = \@ref;
 }

 sub list_wildcard_mapping {
 	my ($forced, $ours, $ls) = @_;
 	my %refs;
 	for (@$ls) {
 		$refs{$_} = 01; # bit #0 to say "they have"
 	}
 	for ($git->command('for-each-ref', "refs/remotes/$ours")) {
 		chomp;
 		next unless (s|^[0-9a-f]{40}\s[a-z]+\srefs/remotes/$ours/||);
 		next if ($_ eq 'HEAD');
 		$refs{$_} ||= 0;
 		$refs{$_} |= 02; # bit #1 to say "we have"
 	}
 	my (@new, @stale, @tracked);
 	for (sort keys %refs) {
 		my $have = $refs{$_};
 		if ($have == 1) {
 			push @new, $_;
 		}
 		elsif ($have == 2) {
 			push @stale, $_;
 		}
 		elsif ($have == 3) {
 			push @tracked, $_;
 		}
 	}
 	return \@new, \@stale, \@tracked;
 }

 sub list_mapping {
 	my ($name, $info) = @_;
 	my $fetch = $info->{'FETCH'};
 	my $ls = $info->{'LS_REMOTE'};
 	my (@new, @stale, @tracked);

 	for (@$fetch) {
 		next unless (/(\+)?([^:]+):(.*)/);
 		my ($forced, $theirs, $ours) = ($1, $2, $3);
 		if ($theirs eq 'refs/heads/*' &&
 		    $ours =~ /^refs\/remotes\/(.*)\/\*$/) {
 			# wildcard mapping
 			my ($w_new, $w_stale, $w_tracked)
 				= list_wildcard_mapping($forced, $1, $ls);
 			push @new, @$w_new;
 			push @stale, @$w_stale;
 			push @tracked, @$w_tracked;
 		}
 		elsif ($theirs =~ /\*/ || $ours =~ /\*/) {
 			print STDERR "Warning: unrecognized mapping in remotes.$name.fetch: $_\n";
 		}
 		elsif ($theirs =~ s|^refs/heads/||) {
 			if (!grep { $_ eq $theirs } @$ls) {
 				push @stale, $theirs;
 			}
 			elsif ($ours ne '') {
 				push @tracked, $theirs;
 			}
 		}
 	}
 	return \@new, \@stale, \@tracked;
 }

 sub show_mapping {
 	my ($name, $info) = @_;
 	my ($new, $stale, $tracked) = list_mapping($name, $info);
 	if (@$new) {
 		print "  New remote branches (next fetch will store in remotes/$name)\n";
 		print "    @$new\n";
 	}
 	if (@$stale) {
 		print "  Stale tracking branches in remotes/$name (use 'git remote prune')\n";
 		print "    @$stale\n";
 	}
 	if (@$tracked) {
 		print "  Tracked remote branches\n";
 		print "    @$tracked\n";
 	}
 }

 sub prune_remote {
 	my ($name, $ls_remote) = @_;
 	if (!exists $remote->{$name}) {
 		print STDERR "No such remote $name\n";
 		return;
 	}
 	my $info = $remote->{$name};
 	update_ls_remote($ls_remote, $info);

 	my ($new, $stale, $tracked) = list_mapping($name, $info);
 	my $prefix = "refs/remotes/$name";
 	foreach my $to_prune (@$stale) {
 		my @v = $git->command(qw(rev-parse --verify), "$prefix/$to_prune");
 		$git->command(qw(update-ref -d), "$prefix/$to_prune", $v[0]);
 	}
 }

 sub show_remote {
 	my ($name, $ls_remote) = @_;
 	if (!exists $remote->{$name}) {
 		print STDERR "No such remote $name\n";
 		return;
 	}
 	my $info = $remote->{$name};
 	update_ls_remote($ls_remote, $info);

 	print "* remote $name\n";
 	print "  URL: $info->{'URL'}\n";
 	for my $branchname (sort keys %$branch) {
 		next if ($branch->{$branchname}{'REMOTE'} ne $name);
 		my @merged = map {
 			s|^refs/heads/||;
 			$_;
 		} split(' ',"@{$branch->{$branchname}{'MERGE'}}");
 		next unless (@merged);
 		print "  Remote branch(es) merged with 'git pull' while on branch $branchname\n";
 		print "    @merged\n";
 	}
 	if ($info->{'LS_REMOTE'}) {
 		show_mapping($name, $info);
 	}
 	if ($info->{'PUSH'}) {
 		my @pushed = map {
 			s|^refs/heads/||;
 			s|:refs/heads/|:|;
 			$_;
 		} @{$info->{'PUSH'}};
 		print "  Local branch(es) pushed with 'git push'\n";
 		print "    @pushed\n";
 	}
 }

 sub add_remote {
 	my ($name, $url, $opts) = @_;
 	if (exists $remote->{$name}) {
 		print STDERR "remote $name already exists.\n";
 		exit(1);
 	}
 	$git->command('config', "remote.$name.url", $url);
 	my $track = $opts->{'track'} || ["*"];

 	for (@$track) {
 		$git->command('config', '--add', "remote.$name.fetch",
 			      "+refs/heads/$_:refs/remotes/$name/$_");
 	}
 	if ($opts->{'fetch'}) {
 		$git->command('fetch', $name);
 	}
 	if (exists $opts->{'master'}) {
 		$git->command('symbolic-ref', "refs/remotes/$name/HEAD",
 			      "refs/remotes/$name/$opts->{'master'}");
 	}
 }

 sub update_remote {
 	my ($name) = @_;

         my $conf = $git->config("remotes." . $name);
 	if (defined($conf)) {
 		@remotes = split(' ', $conf);
 	} elsif ($name eq 'default') {
 		undef @remotes;
 		for (sort keys %$remote) {
 			my $do_fetch = $git->config_bool("remote." . $_ .
 						    ".skipDefaultUpdate");
 			unless ($do_fetch) {
 				push @remotes, $_;
 			}
 		}
 	} else {
 		print STDERR "Remote group $name does not exists.\n";
 		exit(1);
 	}
 	for (@remotes) {
 		print "Updating $_\n";
 		$git->command('fetch', "$_");
 	}
 }

 sub add_usage {
 	print STDERR "Usage: git remote add [-f] [-t track]* [-m master] <name> <url>\n";
 	exit(1);
 }

 if (!@ARGV) {
 	for (sort keys %$remote) {
 		print "$_\n";
 	}
 }
 elsif ($ARGV[0] eq 'show') {
 	my $ls_remote = 1;
 	my $i;
 	for ($i = 1; $i < @ARGV; $i++) {
 		if ($ARGV[$i] eq '-n') {
 			$ls_remote = 0;
 		}
 		else {
 			last;
 		}
 	}
 	if ($i >= @ARGV) {
 		print STDERR "Usage: git remote show <remote>\n";
 		exit(1);
 	}
 	for (; $i < @ARGV; $i++) {
 		show_remote($ARGV[$i], $ls_remote);
 	}
 }
 elsif ($ARGV[0] eq 'update') {
 	if (@ARGV <= 1) {
 		update_remote("default");
 		exit(1);
 	}
 	for ($i = 1; $i < @ARGV; $i++) {
 		update_remote($ARGV[$i]);
 	}
 }
 elsif ($ARGV[0] eq 'prune') {
 	my $ls_remote = 1;
 	my $i;
 	for ($i = 1; $i < @ARGV; $i++) {
 		if ($ARGV[$i] eq '-n') {
 			$ls_remote = 0;
 		}
 		else {
 			last;
 		}
 	}
 	if ($i >= @ARGV) {
 		print STDERR "Usage: git remote prune <remote>\n";
 		exit(1);
 	}
 	for (; $i < @ARGV; $i++) {
 		prune_remote($ARGV[$i], $ls_remote);
 	}
 }
 elsif ($ARGV[0] eq 'add') {
 	my %opts = ();
 	while (1 < @ARGV && $ARGV[1] =~ /^-/) {
 		my $opt = $ARGV[1];
 		shift @ARGV;
 		if ($opt eq '-f' || $opt eq '--fetch') {
 			$opts{'fetch'} = 1;
 			next;
 		}
 		if ($opt eq '-t' || $opt eq '--track') {
 			if (@ARGV < 1) {
 				add_usage();
 			}
 			$opts{'track'} ||= [];
 			push @{$opts{'track'}}, $ARGV[1];
 			shift @ARGV;
 			next;
 		}
 		if ($opt eq '-m' || $opt eq '--master') {
 			if ((@ARGV < 1) || exists $opts{'master'}) {
 				add_usage();
 			}
 			$opts{'master'} = $ARGV[1];
 			shift @ARGV;
 			next;
 		}
 		add_usage();
 	}
 	if (@ARGV != 3) {
 		add_usage();
 	}
 	add_remote($ARGV[1], $ARGV[2], \%opts);
 }
 else {
 	print STDERR "Usage: git remote\n";
 	print STDERR "       git remote add <name> <url>\n";
 	print STDERR "       git remote show <name>\n";
 	print STDERR "       git remote prune <name>\n";
 	print STDERR "       git remote update [group]\n";
 	exit(1);
 }
	#!/usr/bin/perl -w

	use Git;
	my $git = Git->repository();

	sub add_remote_config {
	my ($hash, $name, $what, $value) = @_;
	if ($what eq 'url') {
	if (exists $hash->{$name}{'URL'}) {
	print STDERR "Warning: more than one remote.$name.url\n";
	}
	$hash->{$name}{'URL'} = $value;
	}
	elsif ($what eq 'fetch') {
	$hash->{$name}{'FETCH'} \|\|= [];
	push @{$hash->{$name}{'FETCH'}}, $value;
	}
	elsif ($what eq 'push') {
	$hash->{$name}{'PUSH'} \|\|= [];
	push @{$hash->{$name}{'PUSH'}}, $value;
	}
	if (!exists $hash->{$name}{'SOURCE'}) {
	$hash->{$name}{'SOURCE'} = 'config';
	}
	}

	sub add_remote_remotes {
	my ($hash, $file, $name) = @_;

	if (exists $hash->{$name}) {
	$hash->{$name}{'WARNING'} = 'ignored due to config';
	return;
	}

	my $fh;
	if (!open($fh, '<', $file)) {
	print STDERR "Warning: cannot open $file\n";
	return;
	}
	my $it = { 'SOURCE' => 'remotes' };
	$hash->{$name} = $it;
	while (<$fh>) {
	chomp;
	if (/^URL:\s(.)$/) {
	# Having more than one is Ok -- it is used for push.
	if (! exists $it->{'URL'}) {
	$it->{'URL'} = $1;
	}
	}
	elsif (/^Push:\s(.)$/) {
	$it->{'PUSH'} \|\|= [];
	push @{$it->{'PUSH'}}, $1;
	}
	elsif (/^Pull:\s(.)$/) {
	$it->{'FETCH'} \|\|= [];
	push @{$it->{'FETCH'}}, $1;
	}
	elsif (/^\#/) {
	; # ignore
	}
	else {
	print STDERR "Warning: funny line in $file: $_\n";
	}
	}
	close($fh);
	}

	sub list_remote {
	my ($git) = @_;
	my %seen = ();
	my @remotes = eval {
	$git->command(qw(config --get-regexp), '^remote\.');
	};
	for (@remotes) {
	if (/^remote\.(\S+?)\.([^.\s]+)\s+(.*)$/) {
	add_remote_config(\%seen, $1, $2, $3);
	}
	}

	my $dir = $git->repo_path() . "/remotes";
	if (opendir(my $dh, $dir)) {
	local $_;
	while ($_ = readdir($dh)) {
	chomp;
	next if (! -f "$dir/$_" \|\| ! -r _);
	add_remote_remotes(\%seen, "$dir/$_", $_);
	}
	}

	return \%seen;
	}

	sub add_branch_config {
	my ($hash, $name, $what, $value) = @_;
	if ($what eq 'remote') {
	if (exists $hash->{$name}{'REMOTE'}) {
	print STDERR "Warning: more than one branch.$name.remote\n";
	}
	$hash->{$name}{'REMOTE'} = $value;
	}
	elsif ($what eq 'merge') {
	$hash->{$name}{'MERGE'} \|\|= [];
	push @{$hash->{$name}{'MERGE'}}, $value;
	}
	}

	sub list_branch {
	my ($git) = @_;
	my %seen = ();
	my @branches = eval {
	$git->command(qw(config --get-regexp), '^branch\.');
	};
	for (@branches) {
	if (/^branch\.([^.])\.(\S)\s+(.*)$/) {
	add_branch_config(\%seen, $1, $2, $3);
	}
	}

	return \%seen;
	}

	my $remote = list_remote($git);
	my $branch = list_branch($git);

	sub update_ls_remote {
	my ($harder, $info) = @_;

	return if (($harder == 0) \|\|
	(($harder == 1) && exists $info->{'LS_REMOTE'}));

	my @ref = map {
	s\|^[0-9a-f]{40}\s+refs/heads/\|\|;
	$_;
	} $git->command(qw(ls-remote --heads), $info->{'URL'});
	$info->{'LS_REMOTE'} = \@ref;
	}

	sub list_wildcard_mapping {
	my ($forced, $ours, $ls) = @_;
	my %refs;
	for (@$ls) {
	$refs{$_} = 01; # bit #0 to say "they have"
	}
	for ($git->command('for-each-ref', "refs/remotes/$ours")) {
	chomp;
	next unless (s\|^[0-9a-f]{40}\s[a-z]+\srefs/remotes/$ours/\|\|);
	next if ($_ eq 'HEAD');
	$refs{$_} \|\|= 0;
	$refs{$_} \|= 02; # bit #1 to say "we have"
	}
	my (@new, @stale, @tracked);
	for (sort keys %refs) {
	my $have = $refs{$_};
	if ($have == 1) {
	push @new, $_;
	}
	elsif ($have == 2) {
	push @stale, $_;
	}
	elsif ($have == 3) {
	push @tracked, $_;
	}
	}
	return \@new, \@stale, \@tracked;
	}

	sub list_mapping {
	my ($name, $info) = @_;
	my $fetch = $info->{'FETCH'};
	my $ls = $info->{'LS_REMOTE'};
	my (@new, @stale, @tracked);

	for (@$fetch) {
	next unless (/(\+)?([^:]+):(.*)/);
	my ($forced, $theirs, $ours) = ($1, $2, $3);
	if ($theirs eq 'refs/heads/*' &&
	$ours =~ /^refs\/remotes\/(.)\/\$/) {
	# wildcard mapping
	my ($w_new, $w_stale, $w_tracked)
	= list_wildcard_mapping($forced, $1, $ls);
	push @new, @$w_new;
	push @stale, @$w_stale;
	push @tracked, @$w_tracked;
	}
	elsif ($theirs =~ /\/ \|\| $ours =~ /\/) {
	print STDERR "Warning: unrecognized mapping in remotes.$name.fetch: $_\n";
	}
	elsif ($theirs =~ s\|^refs/heads/\|\|) {
	if (!grep { $_ eq $theirs } @$ls) {
	push @stale, $theirs;
	}
	elsif ($ours ne '') {
	push @tracked, $theirs;
	}
	}
	}
	return \@new, \@stale, \@tracked;
	}

	sub show_mapping {
	my ($name, $info) = @_;
	my ($new, $stale, $tracked) = list_mapping($name, $info);
	if (@$new) {
	print " New remote branches (next fetch will store in remotes/$name)\n";
	print " @$new\n";
	}
	if (@$stale) {
	print " Stale tracking branches in remotes/$name (use 'git remote prune')\n";
	print " @$stale\n";
	}
	if (@$tracked) {
	print " Tracked remote branches\n";
	print " @$tracked\n";
	}
	}

	sub prune_remote {
	my ($name, $ls_remote) = @_;
	if (!exists $remote->{$name}) {
	print STDERR "No such remote $name\n";
	return;
	}
	my $info = $remote->{$name};
	update_ls_remote($ls_remote, $info);

	my ($new, $stale, $tracked) = list_mapping($name, $info);
	my $prefix = "refs/remotes/$name";
	foreach my $to_prune (@$stale) {
	my @v = $git->command(qw(rev-parse --verify), "$prefix/$to_prune");
	$git->command(qw(update-ref -d), "$prefix/$to_prune", $v[0]);
	}
	}

	sub show_remote {
	my ($name, $ls_remote) = @_;
	if (!exists $remote->{$name}) {
	print STDERR "No such remote $name\n";
	return;
	}
	my $info = $remote->{$name};
	update_ls_remote($ls_remote, $info);

	print "* remote $name\n";
	print " URL: $info->{'URL'}\n";
	for my $branchname (sort keys %$branch) {
	next if ($branch->{$branchname}{'REMOTE'} ne $name);
	my @merged = map {
	s\|^refs/heads/\|\|;
	$_;
	} split(' ',"@{$branch->{$branchname}{'MERGE'}}");
	next unless (@merged);
	print " Remote branch(es) merged with 'git pull' while on branch $branchname\n";
	print " @merged\n";
	}
	if ($info->{'LS_REMOTE'}) {
	show_mapping($name, $info);
	}
	if ($info->{'PUSH'}) {
	my @pushed = map {
	s\|^refs/heads/\|\|;
	s\|:refs/heads/\|:\|;
	$_;
	} @{$info->{'PUSH'}};
	print " Local branch(es) pushed with 'git push'\n";
	print " @pushed\n";
	}
	}

	sub add_remote {
	my ($name, $url, $opts) = @_;
	if (exists $remote->{$name}) {
	print STDERR "remote $name already exists.\n";
	exit(1);
	}
	$git->command('config', "remote.$name.url", $url);
	my $track = $opts->{'track'} \|\| ["*"];

	for (@$track) {
	$git->command('config', '--add', "remote.$name.fetch",
	"+refs/heads/$_:refs/remotes/$name/$_");
	}
	if ($opts->{'fetch'}) {
	$git->command('fetch', $name);
	}
	if (exists $opts->{'master'}) {
	$git->command('symbolic-ref', "refs/remotes/$name/HEAD",
	"refs/remotes/$name/$opts->{'master'}");
	}
	}

	sub update_remote {
	my ($name) = @_;

	my $conf = $git->config("remotes." . $name);
	if (defined($conf)) {
	@remotes = split(' ', $conf);
	} elsif ($name eq 'default') {
	undef @remotes;
	for (sort keys %$remote) {
	my $do_fetch = $git->config_bool("remote." . $_ .
	".skipDefaultUpdate");
	unless ($do_fetch) {
	push @remotes, $_;
	}
	}
	} else {
	print STDERR "Remote group $name does not exists.\n";
	exit(1);
	}
	for (@remotes) {
	print "Updating $_\n";
	$git->command('fetch', "$_");
	}
	}

	sub add_usage {
	print STDERR "Usage: git remote add [-f] [-t track]* [-m master] <name> <url>\n";
	exit(1);
	}

	if (!@ARGV) {
	for (sort keys %$remote) {
	print "$_\n";
	}
	}
	elsif ($ARGV[0] eq 'show') {
	my $ls_remote = 1;
	my $i;
	for ($i = 1; $i < @ARGV; $i++) {
	if ($ARGV[$i] eq '-n') {
	$ls_remote = 0;
	}
	else {
	last;
	}
	}
	if ($i >= @ARGV) {
	print STDERR "Usage: git remote show <remote>\n";
	exit(1);
	}
	for (; $i < @ARGV; $i++) {
	show_remote($ARGV[$i], $ls_remote);
	}
	}
	elsif ($ARGV[0] eq 'update') {
	if (@ARGV <= 1) {
	update_remote("default");
	exit(1);
	}
	for ($i = 1; $i < @ARGV; $i++) {
	update_remote($ARGV[$i]);
	}
	}
	elsif ($ARGV[0] eq 'prune') {
	my $ls_remote = 1;
	my $i;
	for ($i = 1; $i < @ARGV; $i++) {
	if ($ARGV[$i] eq '-n') {
	$ls_remote = 0;
	}
	else {
	last;
	}
	}
	if ($i >= @ARGV) {
	print STDERR "Usage: git remote prune <remote>\n";
	exit(1);
	}
	for (; $i < @ARGV; $i++) {
	prune_remote($ARGV[$i], $ls_remote);
	}
	}
	elsif ($ARGV[0] eq 'add') {
	my %opts = ();
	while (1 < @ARGV && $ARGV[1] =~ /^-/) {
	my $opt = $ARGV[1];
	shift @ARGV;
	if ($opt eq '-f' \|\| $opt eq '--fetch') {
	$opts{'fetch'} = 1;
	next;
	}
	if ($opt eq '-t' \|\| $opt eq '--track') {
	if (@ARGV < 1) {
	add_usage();
	}
	$opts{'track'} \|\|= [];
	push @{$opts{'track'}}, $ARGV[1];
	shift @ARGV;
	next;
	}
	if ($opt eq '-m' \|\| $opt eq '--master') {
	if ((@ARGV < 1) \|\| exists $opts{'master'}) {
	add_usage();
	}
	$opts{'master'} = $ARGV[1];
	shift @ARGV;
	next;
	}
	add_usage();
	}
	if (@ARGV != 3) {
	add_usage();
	}
	add_remote($ARGV[1], $ARGV[2], \%opts);
	}
	else {
	print STDERR "Usage: git remote\n";
	print STDERR " git remote add <name> <url>\n";
	print STDERR " git remote show <name>\n";
	print STDERR " git remote prune <name>\n";
	print STDERR " git remote update [group]\n";
	exit(1);
	}