git-svn: reduce scope of input record separator change

Reducing the scope of where we change the record separator ($/)
avoids bugs in calls which rely on the input record separator
further down, such as the 'chomp' usage in command_oneline.

This is necessary for a future change to git-svn, but exists in
Git.pm since it seems useful for gitweb and our other Perl
scripts, too.

Signed-off-by: Eric Wong <e@80x24.org>

2 files changed, 10 insertions, 17 deletions

diff --git a/perl/Git/SVN/Editor.pm b/perl/Git/SVN/Editor.pm
index 4c4199afec..0df16ed726 100644
--- a/perl/Git/SVN/Editor.pm
+++ b/perl/Git/SVN/Editor.pm
@@ -7,7 +7,9 @@ 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/;
+           command_bidi_pipe command_close_bidi_pipe
+           get_record/;
+
 BEGIN {
 	@ISA = qw(SVN::Delta::Editor);
 }
@@ -57,11 +59,9 @@ sub generate_diff {
 	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);
-	local $/ = "\0";
 	my $state = 'meta';
 	my @mods;
-	while (<$diff_fh>) {
-		chomp $_; # this gets rid of the trailing "\0"
+	while (defined($_ = get_record($diff_fh, "\0"))) {
 		if ($state eq 'meta' && /^:(\d{6})\s(\d{6})\s
 					($::sha1)\s($::sha1)\s
 					([MTCRAD])\d*$/xo) {
@@ -173,9 +173,7 @@ sub rmdirs {
 
 	my ($fh, $ctx) = command_output_pipe(qw/ls-tree --name-only -r -z/,
 	                                     $self->{tree_b});
-	local $/ = "\0";
-	while (<$fh>) {
-		chomp;
+	while (defined($_ = get_record($fh, "\0"))) {
 		my @dn = split m#/#, $_;
 		while (pop @dn) {
 			delete $rm->{join '/', @dn};
diff --git a/perl/Git/SVN/Fetcher.pm b/perl/Git/SVN/Fetcher.pm
index d8c21ad915..64e900a0e9 100644
--- a/perl/Git/SVN/Fetcher.pm
+++ b/perl/Git/SVN/Fetcher.pm
@@ -9,7 +9,8 @@ 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/;
+           command_bidi_pipe command_close_bidi_pipe
+           get_record/;
 BEGIN {
 	@ISA = qw(SVN::Delta::Editor);
 }
@@ -86,11 +87,9 @@ sub _mark_empty_symlinks {
 	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);
-	local $/ = "\0";
 	my $pfx = defined($switch_path) ? $switch_path : $git_svn->path;
 	$pfx .= '/' if length($pfx);
-	while (<$ls>) {
-		chomp;
+	while (defined($_ = get_record($ls, "\0"))) {
 		s/\A100644 blob $empty_blob\t//o or next;
 		unless ($printed_warning) {
 			print STDERR "Scanning for empty symlinks, ",
@@ -179,9 +178,7 @@ sub delete_entry {
 		my ($ls, $ctx) = command_output_pipe(qw/ls-tree
 		                                     -r --name-only -z/,
 				                     $tree);
-		local $/ = "\0";
-		while (<$ls>) {
-			chomp;
+		while (defined($_ = get_record($ls, "\0"))) {
 			my $rmpath = "$gpath/$_";
 			$self->{gii}->remove($rmpath);
 			print "\tD\t$rmpath\n" unless $::_q;
@@ -247,9 +244,7 @@ sub add_directory {
 		my ($ls, $ctx) = command_output_pipe(qw/ls-tree
 		                                     -r --name-only -z/,
 				                     $self->{c});
-		local $/ = "\0";
-		while (<$ls>) {
-			chomp;
+		while (defined($_ = get_record($ls, "\0"))) {
 			$self->{gii}->remove($_);
 			print "\tD\t$_\n" unless $::_q;
 			push @deleted_gpath, $gpath;