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-rwxr-xr-xgitweb/gitweb.perl339
1 files changed, 251 insertions, 88 deletions
diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
index 4f0c3bd90c..f80f2594cb 100755
--- a/gitweb/gitweb.perl
+++ b/gitweb/gitweb.perl
@@ -759,6 +759,7 @@ our @cgi_param_mapping = (
extra_options => "opt",
search_use_regexp => "sr",
ctag => "by_tag",
+ diff_style => "ds",
# this must be last entry (for manipulation from JavaScript)
javascript => "js"
);
@@ -2225,93 +2226,119 @@ sub format_diff_cc_simplified {
return $result;
}
-# format patch (diff) line (not to be used for diff headers)
-sub format_diff_line {
- my $line = shift;
- my ($from, $to) = @_;
- my $diff_class = "";
-
- chomp $line;
+sub diff_line_class {
+ my ($line, $from, $to) = @_;
+ # ordinary diff
+ my $num_sign = 1;
+ # combined diff
if ($from && $to && ref($from->{'href'}) eq "ARRAY") {
- # combined diff
- my $prefix = substr($line, 0, scalar @{$from->{'href'}});
- if ($line =~ m/^\@{3}/) {
- $diff_class = " chunk_header";
- } elsif ($line =~ m/^\\/) {
- $diff_class = " incomplete";
- } elsif ($prefix =~ tr/+/+/) {
- $diff_class = " add";
- } elsif ($prefix =~ tr/-/-/) {
- $diff_class = " rem";
- }
- } else {
- # assume ordinary diff
- my $char = substr($line, 0, 1);
- if ($char eq '+') {
- $diff_class = " add";
- } elsif ($char eq '-') {
- $diff_class = " rem";
- } elsif ($char eq '@') {
- $diff_class = " chunk_header";
- } elsif ($char eq "\\") {
- $diff_class = " incomplete";
- }
+ $num_sign = scalar @{$from->{'href'}};
+ }
+
+ my @diff_line_classifier = (
+ { regexp => qr/^\@\@{$num_sign} /, class => "chunk_header"},
+ { regexp => qr/^\\/, class => "incomplete" },
+ { regexp => qr/^ {$num_sign}/, class => "ctx" },
+ # classifier for context must come before classifier add/rem,
+ # or we would have to use more complicated regexp, for example
+ # qr/(?= {0,$m}\+)[+ ]{$num_sign}/, where $m = $num_sign - 1;
+ { regexp => qr/^[+ ]{$num_sign}/, class => "add" },
+ { regexp => qr/^[- ]{$num_sign}/, class => "rem" },
+ );
+ for my $clsfy (@diff_line_classifier) {
+ return $clsfy->{'class'}
+ if ($line =~ $clsfy->{'regexp'});
}
- $line = untabify($line);
- if ($from && $to && $line =~ m/^\@{2} /) {
- my ($from_text, $from_start, $from_lines, $to_text, $to_start, $to_lines, $section) =
- $line =~ m/^\@{2} (-(\d+)(?:,(\d+))?) (\+(\d+)(?:,(\d+))?) \@{2}(.*)$/;
- $from_lines = 0 unless defined $from_lines;
- $to_lines = 0 unless defined $to_lines;
+ # fallback
+ return "";
+}
- if ($from->{'href'}) {
- $from_text = $cgi->a({-href=>"$from->{'href'}#l$from_start",
- -class=>"list"}, $from_text);
- }
- if ($to->{'href'}) {
- $to_text = $cgi->a({-href=>"$to->{'href'}#l$to_start",
- -class=>"list"}, $to_text);
- }
- $line = "<span class=\"chunk_info\">@@ $from_text $to_text @@</span>" .
- "<span class=\"section\">" . esc_html($section, -nbsp=>1) . "</span>";
- return "<div class=\"diff$diff_class\">$line</div>\n";
- } elsif ($from && $to && $line =~ m/^\@{3}/) {
- my ($prefix, $ranges, $section) = $line =~ m/^(\@+) (.*?) \@+(.*)$/;
- my (@from_text, @from_start, @from_nlines, $to_text, $to_start, $to_nlines);
+# assumes that $from and $to are defined and correctly filled,
+# and that $line holds a line of chunk header for unified diff
+sub format_unidiff_chunk_header {
+ my ($line, $from, $to) = @_;
- @from_text = split(' ', $ranges);
- for (my $i = 0; $i < @from_text; ++$i) {
- ($from_start[$i], $from_nlines[$i]) =
- (split(',', substr($from_text[$i], 1)), 0);
- }
+ my ($from_text, $from_start, $from_lines, $to_text, $to_start, $to_lines, $section) =
+ $line =~ m/^\@{2} (-(\d+)(?:,(\d+))?) (\+(\d+)(?:,(\d+))?) \@{2}(.*)$/;
- $to_text = pop @from_text;
- $to_start = pop @from_start;
- $to_nlines = pop @from_nlines;
+ $from_lines = 0 unless defined $from_lines;
+ $to_lines = 0 unless defined $to_lines;
- $line = "<span class=\"chunk_info\">$prefix ";
- for (my $i = 0; $i < @from_text; ++$i) {
- if ($from->{'href'}[$i]) {
- $line .= $cgi->a({-href=>"$from->{'href'}[$i]#l$from_start[$i]",
- -class=>"list"}, $from_text[$i]);
- } else {
- $line .= $from_text[$i];
- }
- $line .= " ";
- }
- if ($to->{'href'}) {
- $line .= $cgi->a({-href=>"$to->{'href'}#l$to_start",
- -class=>"list"}, $to_text);
+ if ($from->{'href'}) {
+ $from_text = $cgi->a({-href=>"$from->{'href'}#l$from_start",
+ -class=>"list"}, $from_text);
+ }
+ if ($to->{'href'}) {
+ $to_text = $cgi->a({-href=>"$to->{'href'}#l$to_start",
+ -class=>"list"}, $to_text);
+ }
+ $line = "<span class=\"chunk_info\">@@ $from_text $to_text @@</span>" .
+ "<span class=\"section\">" . esc_html($section, -nbsp=>1) . "</span>";
+ return $line;
+}
+
+# assumes that $from and $to are defined and correctly filled,
+# and that $line holds a line of chunk header for combined diff
+sub format_cc_diff_chunk_header {
+ my ($line, $from, $to) = @_;
+
+ my ($prefix, $ranges, $section) = $line =~ m/^(\@+) (.*?) \@+(.*)$/;
+ my (@from_text, @from_start, @from_nlines, $to_text, $to_start, $to_nlines);
+
+ @from_text = split(' ', $ranges);
+ for (my $i = 0; $i < @from_text; ++$i) {
+ ($from_start[$i], $from_nlines[$i]) =
+ (split(',', substr($from_text[$i], 1)), 0);
+ }
+
+ $to_text = pop @from_text;
+ $to_start = pop @from_start;
+ $to_nlines = pop @from_nlines;
+
+ $line = "<span class=\"chunk_info\">$prefix ";
+ for (my $i = 0; $i < @from_text; ++$i) {
+ if ($from->{'href'}[$i]) {
+ $line .= $cgi->a({-href=>"$from->{'href'}[$i]#l$from_start[$i]",
+ -class=>"list"}, $from_text[$i]);
} else {
- $line .= $to_text;
+ $line .= $from_text[$i];
}
- $line .= " $prefix</span>" .
- "<span class=\"section\">" . esc_html($section, -nbsp=>1) . "</span>";
- return "<div class=\"diff$diff_class\">$line</div>\n";
+ $line .= " ";
}
- return "<div class=\"diff$diff_class\">" . esc_html($line, -nbsp=>1) . "</div>\n";
+ if ($to->{'href'}) {
+ $line .= $cgi->a({-href=>"$to->{'href'}#l$to_start",
+ -class=>"list"}, $to_text);
+ } else {
+ $line .= $to_text;
+ }
+ $line .= " $prefix</span>" .
+ "<span class=\"section\">" . esc_html($section, -nbsp=>1) . "</span>";
+ return $line;
+}
+
+# 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);
+
+ chomp $line;
+ $line = untabify($line);
+
+ if ($from && $to && $line =~ m/^\@{2} /) {
+ $line = format_unidiff_chunk_header($line, $from, $to);
+ return $diff_class, $line;
+
+ } elsif ($from && $to && $line =~ m/^\@{3}/) {
+ $line = format_cc_diff_chunk_header($line, $from, $to);
+ return $diff_class, $line;
+
+ }
+ return $diff_class, esc_html($line, -nbsp=>1);
}
# Generates undef or something like "_snapshot_" or "snapshot (_tbz2_ _zip_)",
@@ -4833,8 +4860,97 @@ sub git_difftree_body {
print "</table>\n";
}
+sub print_sidebyside_diff_chunk {
+ my @chunk = @_;
+ my (@ctx, @rem, @add);
+
+ return unless @chunk;
+
+ # incomplete last line might be among removed or added lines,
+ # or both, or among context lines: find which
+ for (my $i = 1; $i < @chunk; $i++) {
+ if ($chunk[$i][0] eq 'incomplete') {
+ $chunk[$i][0] = $chunk[$i-1][0];
+ }
+ }
+
+ # guardian
+ push @chunk, ["", ""];
+
+ foreach my $line_info (@chunk) {
+ my ($class, $line) = @$line_info;
+
+ # print chunk headers
+ if ($class && $class eq 'chunk_header') {
+ print $line;
+ next;
+ }
+
+ ## print from accumulator when type of class of lines change
+ # empty contents block on start rem/add block, or end of chunk
+ if (@ctx && (!$class || $class eq 'rem' || $class eq 'add')) {
+ print join '',
+ '<div class="chunk_block ctx">',
+ '<div class="old">',
+ @ctx,
+ '</div>',
+ '<div class="new">',
+ @ctx,
+ '</div>',
+ '</div>';
+ @ctx = ();
+ }
+ # empty add/rem block on start context block, or end of chunk
+ if ((@rem || @add) && (!$class || $class eq 'ctx')) {
+ if (!@add) {
+ # pure removal
+ print join '',
+ '<div class="chunk_block rem">',
+ '<div class="old">',
+ @rem,
+ '</div>',
+ '</div>';
+ } elsif (!@rem) {
+ # pure addition
+ print join '',
+ '<div class="chunk_block add">',
+ '<div class="new">',
+ @add,
+ '</div>',
+ '</div>';
+ } else {
+ # assume that it is change
+ print join '',
+ '<div class="chunk_block chg">',
+ '<div class="old">',
+ @rem,
+ '</div>',
+ '<div class="new">',
+ @add,
+ '</div>',
+ '</div>';
+ }
+ @rem = @add = ();
+ }
+
+ ## adding lines to accumulator
+ # guardian value
+ last unless $line;
+ # rem, add or change
+ if ($class eq 'rem') {
+ push @rem, $line;
+ } elsif ($class eq 'add') {
+ push @add, $line;
+ }
+ # context line
+ if ($class eq 'ctx') {
+ push @ctx, $line;
+ }
+ }
+}
+
sub git_patchset_body {
- my ($fd, $difftree, $hash, @hash_parents) = @_;
+ my ($fd, $diff_style, $difftree, $hash, @hash_parents) = @_;
my ($hash_parent) = $hash_parents[0];
my $is_combined = (@hash_parents > 1);
@@ -4844,6 +4960,7 @@ sub git_patchset_body {
my $diffinfo;
my $to_name;
my (%from, %to);
+ my @chunk; # for side-by-side diff
print "<div class=\"patchset\">\n";
@@ -4950,10 +5067,29 @@ sub git_patchset_body {
next PATCH if ($patch_line =~ m/^diff /);
- print format_diff_line($patch_line, \%from, \%to);
+ my ($class, $line) = process_diff_line($patch_line, \%from, \%to);
+ my $diff_classes = "diff";
+ $diff_classes .= " $class" if ($class);
+ $line = "<div class=\"$diff_classes\">$line</div>\n";
+
+ if ($diff_style eq 'sidebyside' && !$is_combined) {
+ if ($class eq 'chunk_header') {
+ print_sidebyside_diff_chunk(@chunk);
+ @chunk = ( [ $class, $line ] );
+ } else {
+ push @chunk, [ $class, $line ];
+ }
+ } else {
+ # default 'inline' style and unknown styles
+ print $line;
+ }
}
} continue {
+ if (@chunk) {
+ print_sidebyside_diff_chunk(@chunk);
+ @chunk = ();
+ }
print "</div>\n"; # class="patch"
}
@@ -6949,6 +7085,7 @@ sub git_object {
sub git_blobdiff {
my $format = shift || 'html';
+ my $diff_style = $input_params{'diff_style'} || 'inline';
my $fd;
my @difftree;
@@ -7027,6 +7164,7 @@ sub git_blobdiff {
my $formats_nav =
$cgi->a({-href => href(action=>"blobdiff_plain", -replay=>1)},
"raw");
+ $formats_nav .= diff_style_nav($diff_style);
git_header_html(undef, $expires);
if (defined $hash_base && (my %co = parse_commit($hash_base))) {
git_print_page_nav('','', $hash_base,$co{'tree'},$hash_base, $formats_nav);
@@ -7058,7 +7196,8 @@ sub git_blobdiff {
if ($format eq 'html') {
print "<div class=\"page_body\">\n";
- git_patchset_body($fd, [ \%diffinfo ], $hash_base, $hash_parent_base);
+ git_patchset_body($fd, $diff_style,
+ [ \%diffinfo ], $hash_base, $hash_parent_base);
close $fd;
print "</div>\n"; # class="page_body"
@@ -7083,9 +7222,31 @@ sub git_blobdiff_plain {
git_blobdiff('plain');
}
+# assumes that it is added as later part of already existing navigation,
+# so it returns "| foo | bar" rather than just "foo | bar"
+sub diff_style_nav {
+ my ($diff_style, $is_combined) = @_;
+ $diff_style ||= 'inline';
+
+ return "" if ($is_combined);
+
+ my @styles = (inline => 'inline', 'sidebyside' => 'side by side');
+ my %styles = @styles;
+ @styles =
+ @styles[ map { $_ * 2 } 0..$#styles/2 ];
+
+ return join '',
+ map { " | ".$_ }
+ map {
+ $_ eq $diff_style ? $styles{$_} :
+ $cgi->a({-href => href(-replay=>1, diff_style => $_)}, $styles{$_})
+ } @styles;
+}
+
sub git_commitdiff {
my %params = @_;
my $format = $params{-format} || 'html';
+ my $diff_style = $input_params{'diff_style'} || 'inline';
my ($patch_max) = gitweb_get_feature('patches');
if ($format eq 'patch') {
@@ -7111,6 +7272,7 @@ sub git_commitdiff {
$cgi->a({-href => href(action=>"patch", -replay=>1)},
"patch");
}
+ $formats_nav .= diff_style_nav($diff_style, @{$co{'parents'}} > 1);
if (defined $hash_parent &&
$hash_parent ne '-c' && $hash_parent ne '--cc') {
@@ -7128,8 +7290,8 @@ sub git_commitdiff {
}
}
$formats_nav .= ': ' .
- $cgi->a({-href => href(action=>"commitdiff",
- hash=>$hash_parent)},
+ $cgi->a({-href => href(-replay=>1,
+ hash=>$hash_parent, hash_base=>undef)},
esc_html($hash_parent_short)) .
')';
} elsif (!$co{'parent'}) {
@@ -7139,28 +7301,28 @@ sub git_commitdiff {
# single parent commit
$formats_nav .=
' (parent: ' .
- $cgi->a({-href => href(action=>"commitdiff",
- hash=>$co{'parent'})},
+ $cgi->a({-href => href(-replay=>1,
+ hash=>$co{'parent'}, hash_base=>undef)},
esc_html(substr($co{'parent'}, 0, 7))) .
')';
} else {
# merge commit
if ($hash_parent eq '--cc') {
$formats_nav .= ' | ' .
- $cgi->a({-href => href(action=>"commitdiff",
+ $cgi->a({-href => href(-replay=>1,
hash=>$hash, hash_parent=>'-c')},
'combined');
} else { # $hash_parent eq '-c'
$formats_nav .= ' | ' .
- $cgi->a({-href => href(action=>"commitdiff",
+ $cgi->a({-href => href(-replay=>1,
hash=>$hash, hash_parent=>'--cc')},
'compact');
}
$formats_nav .=
' (merge: ' .
join(' ', map {
- $cgi->a({-href => href(action=>"commitdiff",
- hash=>$_)},
+ $cgi->a({-href => href(-replay=>1,
+ hash=>$_, hash_base=>undef)},
esc_html(substr($_, 0, 7)));
} @{$co{'parents'}} ) .
')';
@@ -7289,7 +7451,8 @@ sub git_commitdiff {
$use_parents ? @{$co{'parents'}} : $hash_parent);
print "<br/>\n";
- git_patchset_body($fd, \@difftree, $hash,
+ git_patchset_body($fd, $diff_style,
+ \@difftree, $hash,
$use_parents ? @{$co{'parents'}} : $hash_parent);
close $fd;
print "</div>\n"; # class="page_body"
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-22 20:44:55 +0000