diff options
Diffstat (limited to 'lib/PublicInbox/Spawn.pm')
-rw-r--r-- | lib/PublicInbox/Spawn.pm | 30 |
1 files changed, 20 insertions, 10 deletions
diff --git a/lib/PublicInbox/Spawn.pm b/lib/PublicInbox/Spawn.pm index d3b7ef6f..b0edeb33 100644 --- a/lib/PublicInbox/Spawn.pm +++ b/lib/PublicInbox/Spawn.pm @@ -332,6 +332,18 @@ sub which ($) { undef; } +sub scalar_redirect { + my ($layer, $opt, $child_fd, $bref) = @_; + open my $fh, '+>'.$layer, undef; + $opt->{"fh.$child_fd"} = $fh; + if ($child_fd == 0) { + print $fh $$bref; + $fh->flush or die "flush: $!"; + sysseek($fh, 0, SEEK_SET); + } + fileno($fh); +} + sub spawn ($;$$) { my ($cmd, $env, $opt) = @_; my $f = which($cmd->[0]) // die "$cmd->[0]: command not found\n"; @@ -342,15 +354,11 @@ sub spawn ($;$$) { } for my $child_fd (0..2) { my $pfd = $opt->{$child_fd}; - if ('SCALAR' eq ref($pfd)) { - open my $fh, '+>:utf8', undef; - $opt->{"fh.$child_fd"} = $fh; - if ($child_fd == 0) { - print $fh $$pfd; - $fh->flush or die "flush: $!"; - sysseek($fh, 0, SEEK_SET); - } - $pfd = fileno($fh); + if ('ARRAY' eq ref($pfd)) { + my ($layer, $bref) = @$pfd; + $pfd = scalar_redirect($layer, $opt, $child_fd, $bref) + } elsif ('SCALAR' eq ref($pfd)) { + $pfd = scalar_redirect('', $opt, $child_fd, $pfd); } elsif (defined($pfd) && $pfd !~ /\A[0-9]+\z/) { my $fd = fileno($pfd) // die "$pfd not an IO GLOB? $!"; @@ -394,7 +402,9 @@ sub read_out_err ($) { for my $fd (1, 2) { # read stdout/stderr my $fh = delete($opt->{"fh.$fd"}) // next; seek($fh, 0, SEEK_SET); - ${$opt->{$fd}} .= <$fh>; + my $dst = $opt->{$fd}; + $dst = $opt->{$fd} = $dst->[1] if ref($dst) eq 'ARRAY'; + $$dst .= <$fh>; $fh->error and croak "E: read(FD=$fd): $!"; } } |