mirror of
https://github.com/git/git.git
synced 2024-11-25 10:54:00 +08:00
659288cd91
In the ongoing effort to make the Git project a more inclusive place, let's try to avoid names like "master" where possible. In this instance, the use of the term `slave` is unfortunately enshrined in IO::Pty's API. We simply cannot avoid using that word here. But at least we can get rid of the usage of the word `master` and hope that IO::Pty will be eventually adjusted, too. Guessing that IO::Pty might follow Python's lead, we replace the name `master` by `parent` (hoping that IO::Pty will adopt the parent/child nomenclature, too). Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
106 lines
2.3 KiB
Perl
Executable File
106 lines
2.3 KiB
Perl
Executable File
#!/usr/bin/perl
|
|
use 5.008;
|
|
use strict;
|
|
use warnings;
|
|
use IO::Pty;
|
|
use File::Copy;
|
|
|
|
# Run @$argv in the background with stdio redirected to $in, $out and $err.
|
|
sub start_child {
|
|
my ($argv, $in, $out, $err) = @_;
|
|
my $pid = fork;
|
|
if (not defined $pid) {
|
|
die "fork failed: $!"
|
|
} elsif ($pid == 0) {
|
|
open STDIN, "<&", $in;
|
|
open STDOUT, ">&", $out;
|
|
open STDERR, ">&", $err;
|
|
close $in;
|
|
close $out;
|
|
exec(@$argv) or die "cannot exec '$argv->[0]': $!"
|
|
}
|
|
return $pid;
|
|
}
|
|
|
|
# Wait for $pid to finish.
|
|
sub finish_child {
|
|
# Simplified from wait_or_whine() in run-command.c.
|
|
my ($pid) = @_;
|
|
|
|
my $waiting = waitpid($pid, 0);
|
|
if ($waiting < 0) {
|
|
die "waitpid failed: $!";
|
|
} elsif ($? & 127) {
|
|
my $code = $? & 127;
|
|
warn "died of signal $code";
|
|
return $code + 128;
|
|
} else {
|
|
return $? >> 8;
|
|
}
|
|
}
|
|
|
|
sub xsendfile {
|
|
my ($out, $in) = @_;
|
|
|
|
# Note: the real sendfile() cannot read from a terminal.
|
|
|
|
# It is unspecified by POSIX whether reads
|
|
# from a disconnected terminal will return
|
|
# EIO (as in AIX 4.x, IRIX, and Linux) or
|
|
# end-of-file. Either is fine.
|
|
copy($in, $out, 4096) or $!{EIO} or die "cannot copy from child: $!";
|
|
}
|
|
|
|
sub copy_stdin {
|
|
my ($in) = @_;
|
|
my $pid = fork;
|
|
if (!$pid) {
|
|
xsendfile($in, \*STDIN);
|
|
exit 0;
|
|
}
|
|
close($in);
|
|
return $pid;
|
|
}
|
|
|
|
sub copy_stdio {
|
|
my ($out, $err) = @_;
|
|
my $pid = fork;
|
|
defined $pid or die "fork failed: $!";
|
|
if (!$pid) {
|
|
close($out);
|
|
xsendfile(\*STDERR, $err);
|
|
exit 0;
|
|
}
|
|
close($err);
|
|
xsendfile(\*STDOUT, $out);
|
|
finish_child($pid) == 0
|
|
or exit 1;
|
|
}
|
|
|
|
if ($#ARGV < 1) {
|
|
die "usage: test-terminal program args";
|
|
}
|
|
$ENV{TERM} = 'vt100';
|
|
my $parent_in = new IO::Pty;
|
|
my $parent_out = new IO::Pty;
|
|
my $parent_err = new IO::Pty;
|
|
$parent_in->set_raw();
|
|
$parent_out->set_raw();
|
|
$parent_err->set_raw();
|
|
$parent_in->slave->set_raw();
|
|
$parent_out->slave->set_raw();
|
|
$parent_err->slave->set_raw();
|
|
my $pid = start_child(\@ARGV, $parent_in->slave, $parent_out->slave, $parent_err->slave);
|
|
close $parent_in->slave;
|
|
close $parent_out->slave;
|
|
close $parent_err->slave;
|
|
my $in_pid = copy_stdin($parent_in);
|
|
copy_stdio($parent_out, $parent_err);
|
|
my $ret = finish_child($pid);
|
|
# If the child process terminates before our copy_stdin() process is able to
|
|
# write all of its data to $parent_in, the copy_stdin() process could stall.
|
|
# Send SIGTERM to it to ensure it terminates.
|
|
kill 'TERM', $in_pid;
|
|
finish_child($in_pid);
|
|
exit($ret);
|