Re: [PATCH 4/8] gitweb: Push formatting diff lines to print_diff_chunk()

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Michał Kiedrowicz <michal.kiedrowicz@xxxxxxxxx> writes:

> Now git_patchset_body() only calls diff_line_class() (removed from
> process_diff_line()). The latter function is renamed to
> format_diff_line() and is called from print_diff_chunk().
> 
> This is a pure code movement, needed for processing raw diff lines in
> the accumulator in print_diff_chunk(). No behavior change is intended by
> this change.

Well, this is not "pure code movement" per se; it is meant to be
refactoring that doesn't change gitweb output nor behavior.

If I understand correctly the change is from

  read
  format
  accumulate
  print
 
to

  read
  accumulate
  format
  print

Isn't it?

As a note I would add also that process_diff_line got renamed to
format_diff_line, and its output changed to returning only
HTML-formatted line, which bringg it in line with other format_*
subroutines.

> Signed-off-by: Michał Kiedrowicz <michal.kiedrowicz@xxxxxxxxx>

I think it is a good change even without subsequent patches.

  Acked-by: Jakub Narębski <jnareb@xxxxxxxxx>

> ---
>  gitweb/gitweb.perl |   25 ++++++++++++-------------
>  1 files changed, 12 insertions(+), 13 deletions(-)
> 
> diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
> index d2f75c4..cae9dfa 100755
> --- a/gitweb/gitweb.perl
> +++ b/gitweb/gitweb.perl
> @@ -2320,12 +2320,9 @@ sub format_cc_diff_chunk_header {
>  }
>  
>  # process patch (diff) line (not to be used for diff headers),
> -# returning class and HTML-formatted (but not wrapped) line
> -sub process_diff_line {
> -	my $line = shift;
> -	my ($from, $to) = @_;
> -
> -	my $diff_class = diff_line_class($line, $from, $to);
> +# returning HTML-formatted (but not wrapped) line
> +sub format_diff_line {
> +	my ($line, $diff_class, $from, $to) = @_;
>  
>  	chomp $line;
>  	$line = untabify($line);
> @@ -2343,7 +2340,7 @@ sub process_diff_line {
>  	$diff_classes .= " $diff_class" if ($diff_class);
>  	$line = "<div class=\"$diff_classes\">$line</div>\n";
>  
> -	return $diff_class, $line;
> +	return $line;
>  }
>  
>  # Generates undef or something like "_snapshot_" or "snapshot (_tbz2_ _zip_)",
> @@ -4934,7 +4931,7 @@ sub print_diff_lines {
>  }
>  
>  sub print_diff_chunk {
> -	my ($diff_style, $is_combined, @chunk) = @_;
> +	my ($diff_style, $is_combined, $from, $to, @chunk) = @_;
>  	my (@ctx, @rem, @add);
>  	my $prev_class = '';
>  
> @@ -4954,6 +4951,8 @@ sub print_diff_chunk {
>  	foreach my $line_info (@chunk) {
>  		my ($class, $line) = @$line_info;
>  
> +		$line = format_diff_line($line, $class, $from, $to);
> +
>  		# print chunk headers
>  		if ($class && $class eq 'chunk_header') {
>  			print $line;
> @@ -5107,19 +5106,19 @@ sub git_patchset_body {
>  
>  			next PATCH if ($patch_line =~ m/^diff /);
>  
> -			my ($class, $line) = process_diff_line($patch_line, \%from, \%to);
> +			my $class = diff_line_class($patch_line, \%from, \%to);
>  
>  			if ($class eq 'chunk_header') {
> -				print_diff_chunk($diff_style, $is_combined, @chunk);
> -				@chunk = ( [ $class, $line ] );
> +				print_diff_chunk($diff_style, $is_combined, \%from, \%to, @chunk);
> +				@chunk = ( [ $class, $patch_line ] );
>  			} else {
> -				push @chunk, [ $class, $line ];
> +				push @chunk, [ $class, $patch_line ];
>  			}
>  		}
>  
>  	} continue {
>  		if (@chunk) {
> -			print_diff_chunk($diff_style, $is_combined, @chunk);
> +			print_diff_chunk($diff_style, $is_combined, \%from, \%to, @chunk);
>  			@chunk = ();
>  		}
>  		print "</div>\n"; # class="patch"
> -- 
> 1.7.3.4
> 

Nice!

-- 
Jakub Narębski

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