[PATCH 2/6] gitweb: Simplify git_diff_print

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Copy to temporaty file more directly, not using temporary variable @file.
Use list form of open for diff invocation (we cannot use git-diff because
first it doesn't support -L/--label option, and we cannot generate diff
between /dev/null and blob given by it's sha1 identifier). 

Use "local $/ = undef;" for (temporary) slurp mode.

Signed-off-by: Jakub Narebski <jnareb@xxxxxxxxx>
---
 gitweb/gitweb.perl |   14 +++++++-------
 1 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
index 60113da..b72f12f 100755
--- a/gitweb/gitweb.perl
+++ b/gitweb/gitweb.perl
@@ -1230,31 +1230,31 @@ sub git_diff_print {
 
 	# create tmp from-file
 	if (defined $from) {
+		local $/ = undef;
 		$from_tmp = "$git_temp/gitweb_" . $$ . "_from";
 		open my $fd2, "> $from_tmp";
 		open my $fd, "-|", $GIT, "cat-file", "blob", $from;
-		my @file = <$fd>;
-		print $fd2 @file;
+		print { $fd2 } <$fd>;
 		close $fd2;
 		close $fd;
 	}
 
 	# create tmp to-file
 	if (defined $to) {
+		local $/ = undef;
 		$to_tmp = "$git_temp/gitweb_" . $$ . "_to";
 		open my $fd2, "> $to_tmp";
 		open my $fd, "-|", $GIT, "cat-file", "blob", $to;
-		my @file = <$fd>;
-		print $fd2 @file;
+		print { $fd2 } <$fd>;
 		close $fd2;
 		close $fd;
 	}
 
-	open my $fd, "-|", "/usr/bin/diff -u -p -L \'$from_name\' -L \'$to_name\' $from_tmp $to_tmp";
+	open my $fd, "-|", "/usr/bin/diff",
+		'-u', '-p', '-L', $from_name, '-L', $to_name, $from_tmp, $to_tmp;
 	if ($format eq "plain") {
-		undef $/;
+		local $/ = undef;
 		print <$fd>;
-		$/ = "\n";
 	} else {
 		while (my $line = <$fd>) {
 			chomp $line;
-- 
1.4.1.1

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