Andrew's git - gitweb.git/blob

807d01fe3d6e7768f82c2b76e0203ed4b71f36fa
   1#!/usr/bin/perl
   2
   3use Gtk2 -init;
   4use Gtk2::SimpleList;
   5
   6my $hash;
   7my $fn;
   8if ( @ARGV == 1 ) {
   9        $hash = "HEAD";
  10        $fn = shift;
  11} elsif ( @ARGV == 2 ) {
  12        $hash = shift;
  13        $fn = shift;
  14} else {
  15        die "Usage blameview [<rev>] <filename>";
  16}
  17
  18Gtk2::Rc->parse_string(<<'EOS');
  19style "treeview_style"
  20{
  21  GtkTreeView::vertical-separator = 0
  22}
  23class "GtkTreeView" style "treeview_style"
  24EOS
  25
  26my $window = Gtk2::Window->new('toplevel');
  27$window->signal_connect(destroy => sub { Gtk2->main_quit });
  28my $scrolled_window = Gtk2::ScrolledWindow->new;
  29$window->add($scrolled_window);
  30my $fileview = Gtk2::SimpleList->new(
  31    'Commit' => 'text',
  32    'CommitInfo' => 'text',
  33    'FileLine' => 'text',
  34    'Data' => 'text'
  35);
  36$scrolled_window->add($fileview);
  37$fileview->get_column(0)->set_spacing(0);
  38$fileview->set_size_request(1024, 768);
  39$fileview->set_rules_hint(1);
  40$fileview->signal_connect (row_activated => sub {
  41                my ($sl, $path, $column) = @_;
  42                my $row_ref = $sl->get_row_data_from_path ($path);
  43                system("blameview @$row_ref[0] $fn");
  44                # $row_ref is now an array ref to the double-clicked row's data.
  45                });
  46
  47my $fh;
  48open($fh, '-|', "git cat-file blob $hash:$fn")
  49  or die "unable to open $fn: $!";
  50
  51while(<$fh>) {
  52  chomp;
  53  $fileview->{data}->[$.] = ['HEAD', '?', "$fn:$.", $_];
  54}
  55
  56my $blame;
  57open($blame, '-|', qw(git blame --incremental --), $fn, $hash)
  58    or die "cannot start git-blame $fn";
  59
  60Glib::IO->add_watch(fileno($blame), 'in', \&read_blame_line);
  61
  62$window->show_all;
  63Gtk2->main;
  64exit 0;
  65
  66my %commitinfo = ();
  67
  68sub flush_blame_line {
  69        my ($attr) = @_;
  70
  71        return unless defined $attr;
  72
  73        my ($commit, $s_lno, $lno, $cnt) =
  74            @{$attr}{qw(COMMIT S_LNO LNO CNT)};
  75
  76        my ($filename, $author, $author_time, $author_tz) =
  77            @{$commitinfo{$commit}}{qw(FILENAME AUTHOR AUTHOR-TIME AUTHOR-TZ)};
  78        my $info = $author . ' ' . format_time($author_time, $author_tz);
  79
  80        for(my $i = 0; $i < $cnt; $i++) {
  81                @{$fileview->{data}->[$lno+$i-1]}[0,1,2] =
  82                    (substr($commit, 0, 8), $info,
  83                     $filename . ':' . ($s_lno+$i));
  84        }
  85}
  86
  87my $buf;
  88my $current;
  89sub read_blame_line {
  90
  91        my $r = sysread($blame, $buf, 1024, length($buf));
  92        die "I/O error" unless defined $r;
  93
  94        if ($r == 0) {
  95                flush_blame_line($current);
  96                $current = undef;
  97                return 0;
  98        }
  99
 100        while ($buf =~ s/([^\n]*)\n//) {
 101                my $line = $1;
 102
 103                if (($commit, $s_lno, $lno, $cnt) =
 104                    ($line =~ /^([0-9a-f]{40}) (\d+) (\d+) (\d+)$/)) {
 105                        flush_blame_line($current);
 106                        $current = +{
 107                                COMMIT => $1,
 108                                S_LNO => $2,
 109                                LNO => $3,
 110                                CNT => $4,
 111                        };
 112                        next;
 113                }
 114
 115                # extended attribute values
 116                if ($line =~ /^(author|author-mail|author-time|author-tz|committer|committer-mail|committer-time|committer-tz|summary|filename) (.*)$/) {
 117                        my $commit = $current->{COMMIT};
 118                        $commitinfo{$commit}{uc($1)} = $2;
 119                        next;
 120                }
 121        }
 122        return 1;
 123}
 124
 125sub format_time {
 126  my $time = shift;
 127  my $tz = shift;
 128
 129  my $minutes = $tz < 0 ? 0-$tz : $tz;
 130  $minutes = ($minutes / 100)*60 + ($minutes % 100);
 131  $minutes = $tz < 0 ? 0-$minutes : $minutes;
 132  $time += $minutes * 60;
 133  my @t = gmtime($time);
 134  return sprintf('%04d-%02d-%02d %02d:%02d:%02d %s',
 135                 $t[5] + 1900, @t[4,3,2,1,0], $tz);
 136}