Git::SVN: use accessors internally for path

Then later it can be canonicalized automatically rather than everywhere
its used.

Later patch will make other things use it.

[ew: commit title, reformatted accessor to match existing style]

Signed-off-by: Eric Wong <normalperson@yhbt.net>

perl/Git/SVN.pm

@@ -314,12 +314,12 @@ sub init_remote_config {
 				print STDERR "Using higher level of URL: ",
 					     "$url => $min_url\n";
 			}
-			my $old_path = $self->{path};
-			$self->{path} = $url;
-			$self->{path} =~ s!^\Q$min_url\E(/|$)!!;
+			my $old_path = $self->path;
+			$url =~ s!^\Q$min_url\E(/|$)!!;
 			if (length $old_path) {
-				$self->{path} .= "/$old_path";
+				$url .= "/$old_path";
 			}
+			$self->path($url);
 			$url = $min_url;
 		}
 	}
@@ -343,11 +343,13 @@ sub init_remote_config {
 	unless ($no_write) {
 		command_noisy('config',
 			      "svn-remote.$self->{repo_id}.url", $url);
-		$self->{path} =~ s{^/}{};
-		$self->{path} =~ s{%([0-9A-F]{2})}{chr hex($1)}ieg;
+		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);
+			      $self->path.":".$self->refname);
 	}
 	$self->{url} = $url;
 }
@@ -435,17 +437,22 @@ sub new {
 		}
 	}
 	my $self = _new($class, $repo_id, $ref_id, $path);
-	if (!defined $self->{path} || !length $self->{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\" ",
 		         "\":$ref_id\$\" in config\n";
-		($self->{path}, undef) = split(/\s*:\s*/, $fetch);
+		my($path) = split(/\s*:\s*/, $fetch);
+		$self->path($path);
+	}
+	{
+		my $path = $self->path;
+		$path =~ s{/+}{/}g;
+		$path =~ s{\A/}{};
+		$path =~ s{/\z}{};
+		$self->path($path);
 	}
-	$self->{path} =~ s{/+}{/}g;
-	$self->{path} =~ s{\A/}{};
-	$self->{path} =~ s{/\z}{};
 	$self->{url} = command_oneline('config', '--get',
 	                               "svn-remote.$repo_id.url") or
                   die "Failed to read \"svn-remote.$repo_id.url\" in config\n";
@@ -567,7 +574,7 @@ sub _set_svm_vars {
 	}
 
 	my $r = $ra->get_latest_revnum;
-	my $path = $self->{path};
+	my $path = $self->path;
 	my %tried;
 	while (length $path) {
 		unless ($tried{"$self->{url}/$path"}) {
@@ -728,7 +735,7 @@ sub prop_walk {
 	$path =~ s#^/*#/#g;
 	my $p = $path;
 	# Strip the irrelevant part of the path.
-	$p =~ s#^/+\Q$self->{path}\E(/|$)#/#;
+	$p =~ s#^/+\Q@{[$self->path]}\E(/|$)#/#;
 	# Ensure the path is terminated by a `/'.
 	$p =~ s#/*$#/#;
 
@@ -749,7 +756,7 @@ sub prop_walk {
 
 	foreach (sort keys %$dirent) {
 		next if $dirent->{$_}->{kind} != $SVN::Node::dir;
-		$self->prop_walk($self->{path} . $p . $_, $rev, $sub);
+		$self->prop_walk($self->path . $p . $_, $rev, $sub);
 	}
 }
 
@@ -920,19 +927,19 @@ sub rewrite_uuid {
 sub metadata_url {
 	my ($self) = @_;
 	($self->rewrite_root || $self->{url}) .
-	   (length $self->{path} ? '/' . $self->{path} : '');
+	   (length $self->path ? '/' . $self->path : '');
 }
 
 sub full_url {
 	my ($self) = @_;
-	$self->{url} . (length $self->{path} ? '/' . $self->{path} : '');
+	$self->{url} . (length $self->path ? '/' . $self->path : '');
 }
 
 sub full_pushurl {
 	my ($self) = @_;
 	if ($self->{pushurl}) {
-		return $self->{pushurl} . (length $self->{path} ? '/' .
-		       $self->{path} : '');
+		return $self->{pushurl} . (length $self->path ? '/' .
+		       $self->path : '');
 	} else {
 		return $self->full_url;
 	}
@@ -1048,20 +1055,20 @@ sub do_git_commit {
 
 sub match_paths {
 	my ($self, $paths, $r) = @_;
-	return 1 if $self->{path} eq '';
-	if (my $path = $paths->{"/$self->{path}"}) {
+	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\//;
+	$self->{path_regex} ||= qr{^/\Q@{[$self->path]}\E/};
 	if (grep /$self->{path_regex}/, keys %$paths) {
 		return 1;
 	}
 	my $c = '';
-	foreach (split m#/#, $self->{path}) {
+	foreach (split m#/#, $self->path) {
 		$c .= "/$_";
 		next unless ($paths->{$c} &&
 		             ($paths->{$c}->{action} =~ /^[AR]$/));
-		if ($self->ra->check_path($self->{path}, $r) ==
+		if ($self->ra->check_path($self->path, $r) ==
 		    $SVN::Node::dir) {
 			return 1;
 		}
@@ -1075,14 +1082,14 @@ sub find_parent_branch {
 	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,
+		$self->ra->get_log([$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 @b_path_components = split m#/#, $self->path;
 	my @a_path_components;
 	my $i;
 	while (@b_path_components) {
@@ -1235,7 +1242,7 @@ sub mkemptydirs {
 		close $fh;
 	}
 
-	my $strip = qr/\A\Q$self->{path}\E(?:\/|$)/;
+	my $strip = qr/\A\Q@{[$self->path]}\E(?:\/|$)/;
 	foreach my $d (sort keys %empty_dirs) {
 		$d = uri_decode($d);
 		$d =~ s/$strip//;
@@ -1858,7 +1865,7 @@ sub make_log_entry {
 		$commit_email ||= "$author\@$uuid";
 	} elsif ($self->use_svnsync_props) {
 		my $full_url = $self->svnsync->{url};
-		$full_url .= "/$self->{path}" if length $self->{path};
+		$full_url .= "/".$self->path if length $self->path;
 		remove_username($full_url);
 		my $uuid = $self->svnsync->{uuid};
 		$log_entry{metadata} = "$full_url\@$rev $uuid";
@@ -1905,7 +1912,7 @@ sub set_tree {
 	                tree_b => $tree,
 	                editor_cb => sub {
 			       $self->set_tree_cb($log_entry, $tree, @_) },
-	                svn_path => $self->{path} );
+	                svn_path => $self->path );
 	if (!Git::SVN::Editor->new(\%ed_opts)->apply_diff) {
 		print "No changes\nr$self->{last_rev} = $tree\n";
 	}
@@ -2276,10 +2283,27 @@ sub _new {
 
 	$_[3] = $path = '' unless (defined $path);
 	mkpath([$dir]);
-	bless {
+	my $obj = bless {
 		ref_id => $ref_id, dir => $dir, index => "$dir/index",
-	        path => $path, config => "$ENV{GIT_DIR}/svn/config",
+	        config => "$ENV{GIT_DIR}/svn/config",
 	        map_root => "$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} = $path;
+		return;
+	}
+
+	return $self->{path};
 }
 
 # for read-only access of old .rev_db formats