From eee08903b2cb9cfaf9ee2cd69a255ace829ae7c5 Mon Sep 17 00:00:00 2001 From: Jakub Narebski Date: Thu, 24 Aug 2006 00:15:14 +0200 Subject: [PATCH] gitweb: Use git-diff-tree patch output for commitdiff Get rid of git_diff_print invocation in git_commitdiff and therefore external diff (/usr/bin/diff) invocation, and use only git-diff-tree to generate patch. git_commitdiff and git_commitdiff_plain are collapsed into one subroutine git_commitdiff, with format (currently 'html' which is default format corresponding to git_commitdiff, and 'plain' corresponding to git_commitdiff_plain) specified in argument. Separate patch (diff) pretty-printing into git_patchset_body. It is used in git_commitdiff. Separate patch (diff) line formatting from git_diff_print into format_diff_line function. It is used in git_patchset_body. While at it, add $hash parameter to git_difftree_body, according to rule that inner functions should use parameter passing, and not global variables. CHANGES TO OUTPUT: * "commitdiff" now products patches with renaming and copying detection (git-diff-tree is invoked with -M and -C options). Empty patches (mode changes and pure renames and copying) are not written currently. Former version broke renaming and copying, and didn't notice mode changes, like this version. * "commitdiff" output is now divided into several div elements of class "log", "patchset" and "patch". * "commitdiff_plain" now only generates X-Git-Tag: line only if there is tag pointing to the current commit. Former version which wrote first tag following current commit was broken[*1*]; besides we are interested rather in tags _preceding_ the commit, and _heads_ following the commit. X-Git-Url: now is current URL; former version tried[*2*] to output URL to HTML version of commitdiff. * "commitdiff_plain" is generated by git-diff-tree, and has therefore has git specific extensions to diff format: "git diff" header and optional extended header lines. FOOTNOTES [*1*] First it generated rev-list starting from HEAD even if hash_base parameter was set, second it wasn't corrected according to changes made in git_get_references (formerly read_info_ref) output, third even for older version of read_info_ref output it didn't work for multiple tags pointing to the current commit (rare). [*2*] It wrote URL for commitdiff without hash_parent, which produces diff to first parent and is not the same as current diff if it is diff of merge commit to non-first parent. Signed-off-by: Jakub Narebski Signed-off-by: Junio C Hamano --- gitweb/gitweb.perl | 323 ++++++++++++++++++++++++++++----------------- 1 file changed, 201 insertions(+), 122 deletions(-) diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl index 50083e3011..9367685734 100755 --- a/gitweb/gitweb.perl +++ b/gitweb/gitweb.perl @@ -524,6 +524,27 @@ sub format_subject_html { } } +sub format_diff_line { + my $line = shift; + my $char = substr($line, 0, 1); + my $diff_class = ""; + + chomp $line; + + if ($char eq '+') { + $diff_class = " add"; + } elsif ($char eq "-") { + $diff_class = " rem"; + } elsif ($char eq "@") { + $diff_class = " chunk_header"; + } elsif ($char eq "\\") { + # skip errors (incomplete lines) + return ""; + } + $line = untabify($line); + return "
" . esc_html($line) . "
\n"; +} + ## ---------------------------------------------------------------------- ## git utility subroutines, invoking git commands @@ -1367,7 +1388,7 @@ sub git_print_simplified_log { ## functions printing large fragments of HTML sub git_difftree_body { - my ($difftree, $parent) = @_; + my ($difftree, $hash, $parent) = @_; print "
\n"; if ($#{$difftree} > 10) { @@ -1518,6 +1539,101 @@ sub git_difftree_body { print "\n"; } +sub git_patchset_body { + my ($patchset, $difftree, $hash, $hash_parent) = @_; + + my $patch_idx = 0; + my $in_header = 0; + my $patch_found = 0; + my %diffinfo; + + print "
\n"; + + LINE: foreach my $patch_line (@$patchset) { + + if ($patch_line =~ m/^diff /) { # "git diff" header + # beginning of patch (in patchset) + if ($patch_found) { + # close previous patch + print "
\n"; # class="patch" + } else { + # first patch in patchset + $patch_found = 1; + } + print "
\n"; + + %diffinfo = parse_difftree_raw_line($difftree->[$patch_idx++]); + + # for now, no extended header, hence we skip empty patches + # companion to next LINE if $in_header; + if ($diffinfo{'from_id'} eq $diffinfo{'to_id'}) { # no change + $in_header = 1; + next LINE; + } + + if ($diffinfo{'status'} eq "A") { # added + print "
" . file_type($diffinfo{'to_mode'}) . ":" . + $cgi->a({-href => href(action=>"blob", hash_base=>$hash, + hash=>$diffinfo{'to_id'}, file_name=>$diffinfo{'file'})}, + $diffinfo{'to_id'}) . "(new)" . + "
\n"; # class="diff_info" + + } elsif ($diffinfo{'status'} eq "D") { # deleted + print "
" . file_type($diffinfo{'from_mode'}) . ":" . + $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent, + hash=>$diffinfo{'from_id'}, file_name=>$diffinfo{'file'})}, + $diffinfo{'from_id'}) . "(deleted)" . + "
\n"; # class="diff_info" + + } elsif ($diffinfo{'status'} eq "R" || # renamed + $diffinfo{'status'} eq "C") { # copied + print "
" . + file_type($diffinfo{'from_mode'}) . ":" . + $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent, + hash=>$diffinfo{'from_id'}, file_name=>$diffinfo{'from_file'})}, + $diffinfo{'from_id'}) . + " -> " . + file_type($diffinfo{'to_mode'}) . ":" . + $cgi->a({-href => href(action=>"blob", hash_base=>$hash, + hash=>$diffinfo{'to_id'}, file_name=>$diffinfo{'to_file'})}, + $diffinfo{'to_id'}); + print "
\n"; # class="diff_info" + + } else { # modified, mode changed, ... + print "
" . + file_type($diffinfo{'from_mode'}) . ":" . + $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent, + hash=>$diffinfo{'from_id'}, file_name=>$diffinfo{'file'})}, + $diffinfo{'from_id'}) . + " -> " . + file_type($diffinfo{'to_mode'}) . ":" . + $cgi->a({-href => href(action=>"blob", hash_base=>$hash, + hash=>$diffinfo{'to_id'}, file_name=>$diffinfo{'file'})}, + $diffinfo{'to_id'}); + print "
\n"; # class="diff_info" + } + + #print "
\n"; + $in_header = 1; + next LINE; + } # start of patch in patchset + + + if ($in_header && $patch_line =~ m/^---/) { + #print "
\n" + $in_header = 0; + } + next LINE if $in_header; + + print format_diff_line($patch_line); + } + print "
\n" if $patch_found; # class="patch" + + print "
\n"; # class="patchset" +} + +# . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . + sub git_shortlog_body { # uses global variable $project my ($revlist, $from, $to, $refs, $extra) = @_; @@ -2556,7 +2672,7 @@ sub git_commit { git_print_log($co{'comment'}); print "\n"; - git_difftree_body(\@difftree, $parent); + git_difftree_body(\@difftree, $hash, $parent); git_footer_html(); } @@ -2600,7 +2716,7 @@ sub git_blobdiff_plain { } sub git_commitdiff { - mkdir($git_temp, 0700); + my $format = shift || 'html'; my %co = parse_commit($hash); if (!%co) { die_error(undef, "Unknown commit object"); @@ -2608,143 +2724,106 @@ sub git_commitdiff { if (!defined $hash_parent) { $hash_parent = $co{'parent'} || '--root'; } - open my $fd, "-|", $GIT, "diff-tree", '-r', $hash_parent, $hash - or die_error(undef, "Open git-diff-tree failed"); - my @difftree = map { chomp; $_ } <$fd>; - close $fd or die_error(undef, "Reading git-diff-tree failed"); + + # read commitdiff + my $fd; + my @difftree; + my @patchset; + if ($format eq 'html') { + open $fd, "-|", $GIT, "diff-tree", '-r', '-M', '-C', + "--patch-with-raw", "--full-index", $hash_parent, $hash + or die_error(undef, "Open git-diff-tree failed"); + + while (chomp(my $line = <$fd>)) { + # empty line ends raw part of diff-tree output + last unless $line; + push @difftree, $line; + } + @patchset = map { chomp; $_ } <$fd>; + + close $fd + or die_error(undef, "Reading git-diff-tree failed"); + } elsif ($format eq 'plain') { + open $fd, "-|", $GIT, "diff-tree", '-r', '-p', '-B', $hash_parent, $hash + or die_error(undef, "Open git-diff-tree failed"); + } else { + die_error(undef, "Unknown commitdiff format"); + } # non-textual hash id's can be cached my $expires; if ($hash =~ m/^[0-9a-fA-F]{40}$/) { $expires = "+1d"; } - my $refs = git_get_references(); - my $ref = format_ref_marker($refs, $co{'id'}); - my $formats_nav = - $cgi->a({-href => href(action=>"commitdiff_plain", hash=>$hash, hash_parent=>$hash_parent)}, - "plain"); - git_header_html(undef, $expires); - git_print_page_nav('commitdiff','', $hash,$co{'tree'},$hash, $formats_nav); - git_print_header_div('commit', esc_html($co{'title'}) . $ref, $hash); - print "
\n"; - git_print_simplified_log($co{'comment'}, 1); # skip title - print "
\n"; - foreach my $line (@difftree) { - # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M ls-files.c' - # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M rev-tree.c' - if ($line !~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) { - next; - } - my $from_mode = $1; - my $to_mode = $2; - my $from_id = $3; - my $to_id = $4; - my $status = $5; - my $file = validate_input(unquote($6)); - if ($status eq "A") { - print "
" . file_type($to_mode) . ":" . - $cgi->a({-href => href(action=>"blob", hash_base=>$hash, - hash=>$to_id, file_name=>$file)}, - $to_id) . "(new)" . - "
\n"; - git_diff_print(undef, "/dev/null", $to_id, "b/$file"); - } elsif ($status eq "D") { - print "
" . file_type($from_mode) . ":" . - $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent, - hash=>$from_id, file_name=>$file)}, - $from_id) . "(deleted)" . - "
\n"; - git_diff_print($from_id, "a/$file", undef, "/dev/null"); - } elsif ($status eq "M") { - if ($from_id ne $to_id) { - print "
" . - file_type($from_mode) . ":" . - $cgi->a({-href => href(action=>"blob", hash_base=>$hash_parent, - hash=>$from_id, file_name=>$file)}, - $from_id) . - " -> " . - file_type($to_mode) . ":" . - $cgi->a({-href => href(action=>"blob", hash_base=>$hash, - hash=>$to_id, file_name=>$file)}, - $to_id); - print "
\n"; - git_diff_print($from_id, "a/$file", $to_id, "b/$file"); - } - } - } - print "
\n" . - "
"; - git_footer_html(); -} -sub git_commitdiff_plain { - mkdir($git_temp, 0700); - my %co = parse_commit($hash); - if (!%co) { - die_error(undef, "Unknown commit object"); - } - if (!defined $hash_parent) { - $hash_parent = $co{'parent'} || '--root'; - } - open my $fd, "-|", $GIT, "diff-tree", '-r', $hash_parent, $hash - or die_error(undef, "Open git-diff-tree failed"); - my @difftree = map { chomp; $_ } <$fd>; - close $fd or die_error(undef, "Reading diff-tree failed"); - - # try to figure out the next tag after this commit - my $tagname; - my $refs = git_get_references("tags"); - open $fd, "-|", $GIT, "rev-list", "HEAD"; - my @commits = map { chomp; $_ } <$fd>; - close $fd; - foreach my $commit (@commits) { - if (defined $refs->{$commit}) { - $tagname = $refs->{$commit} - } - if ($commit eq $hash) { - last; - } - } + # write commit message + if ($format eq 'html') { + my $refs = git_get_references(); + my $ref = format_ref_marker($refs, $co{'id'}); + my $formats_nav = + $cgi->a({-href => href(action=>"commitdiff_plain", + hash=>$hash, hash_parent=>$hash_parent)}, + "plain"); - print $cgi->header(-type => "text/plain", - -charset => 'utf-8', - -content_disposition => "inline; filename=\"git-$hash.patch\""); - my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'}); - my $comment = $co{'comment'}; - print <\n"; + print "
\n"; + git_print_simplified_log($co{'comment'}, 1); # skip title + print "
\n"; # class="log" + + } elsif ($format eq 'plain') { + my $refs = git_get_references("tags"); + my @tagnames; + if (exists $refs->{$hash}) { + @tagnames = map { s|^tags/|| } $refs->{$hash}; + } + my $filename = basename($project) . "-$hash.patch"; + + print $cgi->header( + -type => 'text/plain', + -charset => 'utf-8', + -expires => $expires, + -content_disposition => qq(inline; filename="$filename")); + my %ad = parse_date($co{'author_epoch'}, $co{'author_tz'}); + print <self_url() . "\n\n"; + foreach my $line (@{$co{'comment'}}) { + print "$line\n"; + } + print "---\n\n"; } - print "X-Git-Url: $my_url?p=$project;a=commitdiff;h=$hash\n" . - "\n"; - foreach my $line (@$comment) {; - print "$line\n"; - } - print "---\n\n"; + # write patch + if ($format eq 'html') { + #git_difftree_body(\@difftree, $hash, $hash_parent); + #print "
\n"; - foreach my $line (@difftree) { - if ($line !~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) { - next; - } - my $from_id = $3; - my $to_id = $4; - my $status = $5; - my $file = $6; - if ($status eq "A") { - git_diff_print(undef, "/dev/null", $to_id, "b/$file", "plain"); - } elsif ($status eq "D") { - git_diff_print($from_id, "a/$file", undef, "/dev/null", "plain"); - } elsif ($status eq "M") { - git_diff_print($from_id, "a/$file", $to_id, "b/$file", "plain"); - } + git_patchset_body(\@patchset, \@difftree, $hash, $hash_parent); + + print "\n"; # class="page_body" + git_footer_html(); + + } elsif ($format eq 'plain') { + local $/ = undef; + print <$fd>; + close $fd + or print "Reading git-diff-tree failed\n"; } } +sub git_commitdiff_plain { + git_commitdiff('plain'); +} + sub git_history { if (!defined $hash_base) { $hash_base = git_get_head_hash($project); -- 2.47.1