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#!/usr/bin/perl
use Gtk2 -init;
use Gtk2::SimpleList;
my $fn = shift or die "require filename to blame";
Gtk2::Rc->parse_string(<<'EOS');
style "treeview_style"
{
GtkTreeView::vertical-separator = 0
}
class "GtkTreeView" style "treeview_style"
EOS
my $window = Gtk2::Window->new('toplevel');
$window->signal_connect(destroy => sub { Gtk2->main_quit });
my $scrolled_window = Gtk2::ScrolledWindow->new;
$window->add($scrolled_window);
my $fileview = Gtk2::SimpleList->new(
'Commit' => 'text',
'CommitInfo' => 'text',
'FileLine' => 'text',
'Data' => 'text'
);
$scrolled_window->add($fileview);
$fileview->get_column(0)->set_spacing(0);
$fileview->set_size_request(1024, 768);
$fileview->set_rules_hint(1);
my $fh;
open($fh, '-|', "git cat-file blob HEAD:$fn")
or die "unable to open $fn: $!";
while(<$fh>) {
chomp;
$fileview->{data}->[$.] = ['HEAD', '?', "$fn:$.", $_];
}
my $blame;
open($blame, '-|', qw(git blame --incremental --), $fn)
or die "cannot start git-blame $fn";
Glib::IO->add_watch(fileno($blame), 'in', \&read_blame_line);
$window->show_all;
Gtk2->main;
exit 0;
my %commitinfo = ();
sub flush_blame_line {
my ($attr) = @_;
return unless defined $attr;
my ($commit, $s_lno, $lno, $cnt) =
@{$attr}{qw(COMMIT S_LNO LNO CNT)};
my ($filename, $author, $author_time, $author_tz) =
@{$commitinfo{$commit}}{qw(FILENAME AUTHOR AUTHOR-TIME AUTHOR-TZ)};
my $info = $author . ' ' . format_time($author_time, $author_tz);
for(my $i = 0; $i < $cnt; $i++) {
@{$fileview->{data}->[$lno+$i-1]}[0,1,2] =
(substr($commit, 0, 8), $info,
$filename . ':' . ($s_lno+$i));
}
}
my $buf;
my $current;
sub read_blame_line {
my $r = sysread($blame, $buf, 1024, length($buf));
die "I/O error" unless defined $r;
if ($r == 0) {
flush_blame_line($current);
$current = undef;
return 0;
}
while ($buf =~ s/([^\n]*)\n//) {
my $line = $1;
if (($commit, $s_lno, $lno, $cnt) =
($line =~ /^([0-9a-f]{40}) (\d+) (\d+) (\d+)$/)) {
flush_blame_line($current);
$current = +{
COMMIT => $1,
S_LNO => $2,
LNO => $3,
CNT => $4,
};
next;
}
# extended attribute values
if ($line =~ /^(author|author-mail|author-time|author-tz|committer|committer-mail|committer-time|committer-tz|summary|filename) (.*)$/) {
my $commit = $current->{COMMIT};
$commitinfo{$commit}{uc($1)} = $2;
next;
}
}
return 1;
}
sub format_time {
my $time = shift;
my $tz = shift;
my $minutes = $tz < 0 ? 0-$tz : $tz;
$minutes = ($minutes / 100)*60 + ($minutes % 100);
$minutes = $tz < 0 ? 0-$minutes : $minutes;
$time += $minutes * 60;
my @t = gmtime($time);
return sprintf('%04d-%02d-%02d %02d:%02d:%02d %s',
$t[5] + 1900, @t[4,3,2,1,0], $tz);
}
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