lib/PublicInbox/LeiMailDiff.pm

   1 # Copyright (C) all contributors <meta@public-inbox.org>
   2 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
   3
   4 # The "lei mail-diff" sub-command, diffs input contents against
   5 # the first message of input
   6 package PublicInbox::LeiMailDiff;
   7 use v5.12;
   8 use parent qw(PublicInbox::IPC PublicInbox::LeiInput PublicInbox::MailDiff);
   9 use PublicInbox::Spawn qw(spawn which);
  10 use File::Path ();
  11 require PublicInbox::LeiRediff;
  12
  13 sub diff_a ($$) {
  14         my ($self, $eml) = @_;
  15         my $dir = "$self->{tmp}/N".(++$self->{nr});
  16         $self->dump_eml($dir, $eml);
  17         my $cmd = [ qw(git diff --no-index) ];
  18         my $lei = $self->{lei};
  19         PublicInbox::LeiRediff::_lei_diff_prepare($lei, $cmd);
  20         push @$cmd, qw(-- a), "N$self->{nr}";
  21         my $rdr = { -C => "$self->{tmp}" };
  22         @$rdr{1, 2} = @$lei{1, 2};
  23         my $pid = spawn($cmd, $lei->{env}, $rdr);
  24         waitpid($pid, 0);
  25         $lei->child_error($?) if $?; # for git diff --exit-code
  26         File::Path::remove_tree($self->{curdir});
  27 }
  28
  29 sub input_eml_cb { # used by PublicInbox::LeiInput::input_fh
  30         my ($self, $eml) = @_;
  31         $self->{tmp} ? diff_a($self, $eml) : $self->prep_a($eml);
  32 }
  33
  34 sub lei_mail_diff {
  35         my ($lei, @argv) = @_;
  36         my $self = bless {}, __PACKAGE__;
  37         $self->prepare_inputs($lei, \@argv) or return;
  38         my $isatty = -t $lei->{1};
  39         $lei->{opt}->{color} //= $isatty;
  40         $lei->start_pager if $isatty;
  41         $lei->{-err_type} = 'non-fatal';
  42         $self->{-raw_hdr} = $lei->{opt}->{'raw-header'};
  43         $lei->wq1_start($self);
  44 }
  45
  46 no warnings 'once';
  47 *net_merge_all_done = \&PublicInbox::LeiInput::input_only_net_merge_all_done;
  48 1;