diff options
Diffstat (limited to 'perl/Git/SVN/Log.pm')
| -rw-r--r-- | perl/Git/SVN/Log.pm | 400 |
1 files changed, 400 insertions, 0 deletions
diff --git a/perl/Git/SVN/Log.pm b/perl/Git/SVN/Log.pm new file mode 100644 index 0000000..cc8b484 --- /dev/null +++ b/perl/Git/SVN/Log.pm @@ -0,0 +1,400 @@ +package Git::SVN::Log; +use strict; +use warnings $ENV{GIT_PERL_FATAL_WARNINGS} ? qw(FATAL all) : (); +use Git::SVN::Utils qw(fatal); +use Git qw(command + command_oneline + command_output_pipe + command_close_pipe + get_tz_offset); +use POSIX qw/strftime/; +use constant commit_log_separator => ('-' x 72) . "\n"; +use vars qw/$TZ $limit $color $pager $non_recursive $verbose $oneline + %rusers $show_commit $incremental/; + +# Option set in git-svn +our $_git_format; + +sub cmt_showable { + my ($c) = @_; + return 1 if defined $c->{r}; + + # big commit message got truncated by the 16k pretty buffer in rev-list + if ($c->{l} && $c->{l}->[-1] eq "...\n" && + $c->{a_raw} =~ /\@([a-f\d\-]+)>$/) { + @{$c->{l}} = (); + my @log = command(qw/cat-file commit/, $c->{c}); + + # shift off the headers + shift @log while ($log[0] ne ''); + shift @log; + + # TODO: make $c->{l} not have a trailing newline in the future + @{$c->{l}} = map { "$_\n" } grep !/^git-svn-id: /, @log; + + (undef, $c->{r}, undef) = ::extract_metadata( + (grep(/^git-svn-id: /, @log))[-1]); + } + return defined $c->{r}; +} + +sub log_use_color { + return $color || Git->repository->get_colorbool('color.diff'); +} + +sub git_svn_log_cmd { + my ($r_min, $r_max, @args) = @_; + my $head = 'HEAD'; + my (@files, @log_opts); + foreach my $x (@args) { + if ($x eq '--' || @files) { + push @files, $x; + } else { + if (::verify_ref("$x^0")) { + $head = $x; + } else { + push @log_opts, $x; + } + } + } + + my ($url, $rev, $uuid, $gs) = ::working_head_info($head); + + require Git::SVN; + $gs ||= Git::SVN->_new; + my @cmd = (qw/log --abbrev-commit --pretty=raw --default/, + $gs->refname); + push @cmd, '-r' unless $non_recursive; + push @cmd, qw/--raw --name-status/ if $verbose; + push @cmd, '--color' if log_use_color(); + push @cmd, @log_opts; + if (defined $r_max && $r_max == $r_min) { + push @cmd, '--max-count=1'; + if (my $c = $gs->rev_map_get($r_max)) { + push @cmd, $c; + } + } elsif (defined $r_max) { + if ($r_max < $r_min) { + ($r_min, $r_max) = ($r_max, $r_min); + } + my (undef, $c_max) = $gs->find_rev_before($r_max, 1, $r_min); + my (undef, $c_min) = $gs->find_rev_after($r_min, 1, $r_max); + # If there are no commits in the range, both $c_max and $c_min + # will be undefined. If there is at least 1 commit in the + # range, both will be defined. + return () if !defined $c_min || !defined $c_max; + if ($c_min eq $c_max) { + push @cmd, '--max-count=1', $c_min; + } else { + push @cmd, '--boundary', "$c_min..$c_max"; + } + } + return (@cmd, @files); +} + +# adapted from pager.c +sub config_pager { + if (! -t *STDOUT) { + $ENV{GIT_PAGER_IN_USE} = 'false'; + $pager = undef; + return; + } + chomp($pager = command_oneline(qw(var GIT_PAGER))); + if ($pager eq 'cat') { + $pager = undef; + } + $ENV{GIT_PAGER_IN_USE} = defined($pager); +} + +sub run_pager { + return unless defined $pager; + pipe my ($rfd, $wfd) or return; + defined(my $pid = fork) or fatal "Can't fork: $!"; + if (!$pid) { + open STDOUT, '>&', $wfd or + fatal "Can't redirect to stdout: $!"; + return; + } + open STDIN, '<&', $rfd or fatal "Can't redirect stdin: $!"; + $ENV{LESS} ||= 'FRX'; + $ENV{LV} ||= '-c'; + exec $pager or fatal "Can't run pager: $! ($pager)"; +} + +sub format_svn_date { + my $t = shift || time; + require Git::SVN; + my $gmoff = get_tz_offset($t); + return strftime("%Y-%m-%d %H:%M:%S $gmoff (%a, %d %b %Y)", localtime($t)); +} + +sub parse_git_date { + my ($t, $tz) = @_; + # Date::Parse isn't in the standard Perl distro :( + if ($tz =~ s/^\+//) { + $t += tz_to_s_offset($tz); + } elsif ($tz =~ s/^\-//) { + $t -= tz_to_s_offset($tz); + } + return $t; +} + +sub set_local_timezone { + if (defined $TZ) { + $ENV{TZ} = $TZ; + } else { + delete $ENV{TZ}; + } +} + +sub tz_to_s_offset { + my ($tz) = @_; + $tz =~ s/(\d\d)$//; + return ($1 * 60) + ($tz * 3600); +} + +sub get_author_info { + my ($dest, $author, $t, $tz) = @_; + $author =~ s/(?:^\s*|\s*$)//g; + $dest->{a_raw} = $author; + my $au; + if ($::_authors) { + $au = $rusers{$author} || undef; + } + if (!$au) { + ($au) = ($author =~ /<([^>]+)\@[^>]+>$/); + } + $dest->{t} = $t; + $dest->{tz} = $tz; + $dest->{a} = $au; + $dest->{t_utc} = parse_git_date($t, $tz); +} + +sub process_commit { + my ($c, $r_min, $r_max, $defer) = @_; + if (defined $r_min && defined $r_max) { + if ($r_min == $c->{r} && $r_min == $r_max) { + show_commit($c); + return 0; + } + return 1 if $r_min == $r_max; + if ($r_min < $r_max) { + # we need to reverse the print order + return 0 if (defined $limit && --$limit < 0); + push @$defer, $c; + return 1; + } + if ($r_min != $r_max) { + return 1 if ($r_min < $c->{r}); + return 1 if ($r_max > $c->{r}); + } + } + return 0 if (defined $limit && --$limit < 0); + show_commit($c); + return 1; +} + +my $l_fmt; +sub show_commit { + my $c = shift; + if ($oneline) { + my $x = "\n"; + if (my $l = $c->{l}) { + while ($l->[0] =~ /^\s*$/) { shift @$l } + $x = $l->[0]; + } + $l_fmt ||= 'A' . length($c->{r}); + print 'r',pack($l_fmt, $c->{r}),' | '; + print "$c->{c} | " if $show_commit; + print $x; + } else { + show_commit_normal($c); + } +} + +sub show_commit_changed_paths { + my ($c) = @_; + return unless $c->{changed}; + print "Changed paths:\n", @{$c->{changed}}; +} + +sub show_commit_normal { + my ($c) = @_; + print commit_log_separator, "r$c->{r} | "; + print "$c->{c} | " if $show_commit; + print "$c->{a} | ", format_svn_date($c->{t_utc}), ' | '; + my $nr_line = 0; + + if (my $l = $c->{l}) { + while ($l->[$#$l] eq "\n" && $#$l > 0 + && $l->[($#$l - 1)] eq "\n") { + pop @$l; + } + $nr_line = scalar @$l; + if (!$nr_line) { + print "1 line\n\n\n"; + } else { + if ($nr_line == 1) { + $nr_line = '1 line'; + } else { + $nr_line .= ' lines'; + } + print $nr_line, "\n"; + show_commit_changed_paths($c); + print "\n"; + print $_ foreach @$l; + } + } else { + print "1 line\n"; + show_commit_changed_paths($c); + print "\n"; + + } + foreach my $x (qw/raw stat diff/) { + if ($c->{$x}) { + print "\n"; + print $_ foreach @{$c->{$x}} + } + } +} + +sub cmd_show_log { + my (@args) = @_; + my ($r_min, $r_max); + my $r_last = -1; # prevent dupes + set_local_timezone(); + if (defined $::_revision) { + if ($::_revision =~ /^(\d+):(\d+)$/) { + ($r_min, $r_max) = ($1, $2); + } elsif ($::_revision =~ /^\d+$/) { + $r_min = $r_max = $::_revision; + } else { + fatal "-r$::_revision is not supported, use ", + "standard 'git log' arguments instead"; + } + } + + config_pager(); + @args = git_svn_log_cmd($r_min, $r_max, @args); + if (!@args) { + print commit_log_separator unless $incremental || $oneline; + return; + } + my $log = command_output_pipe(@args); + run_pager(); + my (@k, $c, $d, $stat); + my $esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/; + while (<$log>) { + if (/^${esc_color}commit (?:- )?($::oid_short)/o) { + my $cmt = $1; + if ($c && cmt_showable($c) && $c->{r} != $r_last) { + $r_last = $c->{r}; + process_commit($c, $r_min, $r_max, \@k) or + goto out; + } + $d = undef; + $c = { c => $cmt }; + } elsif (/^${esc_color}author (.+) (\d+) ([\-\+]?\d+)$/o) { + get_author_info($c, $1, $2, $3); + } elsif (/^${esc_color}(?:tree|parent|committer) /o) { + # ignore + } elsif (/^${esc_color}:\d{6} \d{6} $::oid_short/o) { + push @{$c->{raw}}, $_; + } elsif (/^${esc_color}[ACRMDT]\t/) { + # we could add $SVN->{svn_path} here, but that requires + # remote access at the moment (repo_path_split)... + s#^(${esc_color})([ACRMDT])\t#$1 $2 #o; + push @{$c->{changed}}, $_; + } elsif (/^${esc_color}diff /o) { + $d = 1; + push @{$c->{diff}}, $_; + } elsif ($d) { + push @{$c->{diff}}, $_; + } elsif (/^\ .+\ \|\s*\d+\ $esc_color[\+\-]* + $esc_color*[\+\-]*$esc_color$/x) { + $stat = 1; + push @{$c->{stat}}, $_; + } elsif ($stat && /^ \d+ files changed, \d+ insertions/) { + push @{$c->{stat}}, $_; + $stat = undef; + } elsif (/^${esc_color} (git-svn-id:.+)$/o) { + ($c->{url}, $c->{r}, undef) = ::extract_metadata($1); + } elsif (s/^${esc_color} //o) { + push @{$c->{l}}, $_; + } + } + if ($c && defined $c->{r} && $c->{r} != $r_last) { + $r_last = $c->{r}; + process_commit($c, $r_min, $r_max, \@k); + } + if (@k) { + ($r_min, $r_max) = ($r_max, $r_min); + process_commit($_, $r_min, $r_max) foreach reverse @k; + } +out: + close $log; + print commit_log_separator unless $incremental || $oneline; +} + +sub cmd_blame { + my $path = pop; + + config_pager(); + run_pager(); + + my ($fh, $ctx, $rev); + + if ($_git_format) { + ($fh, $ctx) = command_output_pipe('blame', @_, $path); + while (my $line = <$fh>) { + if ($line =~ /^\^?([[:xdigit:]]+)\s/) { + # Uncommitted edits show up as a rev ID of + # all zeros, which we can't look up with + # cmt_metadata + if ($1 !~ /^0+$/) { + (undef, $rev, undef) = + ::cmt_metadata($1); + $rev = '0' if (!$rev); + } else { + $rev = '0'; + } + $rev = sprintf('%-10s', $rev); + $line =~ s/^\^?[[:xdigit:]]+(\s)/$rev$1/; + } + print $line; + } + } else { + ($fh, $ctx) = command_output_pipe('blame', '-p', @_, 'HEAD', + '--', $path); + my ($sha1); + my %authors; + my @buffer; + my %dsha; #distinct sha keys + + while (my $line = <$fh>) { + push @buffer, $line; + if ($line =~ /^([[:xdigit:]]{40})\s\d+\s\d+/) { + $dsha{$1} = 1; + } + } + + my $s2r = ::cmt_sha2rev_batch([keys %dsha]); + + foreach my $line (@buffer) { + if ($line =~ /^([[:xdigit:]]{40})\s\d+\s\d+/) { + $rev = $s2r->{$1}; + $rev = '0' if (!$rev) + } + elsif ($line =~ /^author (.*)/) { + $authors{$rev} = $1; + $authors{$rev} =~ s/\s/_/g; + } + elsif ($line =~ /^\t(.*)$/) { + printf("%6s %10s %s\n", $rev, $authors{$rev}, $1); + } + } + } + command_close_pipe($fh, $ctx); +} + +1; |