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#
# (c) Jan Gehring <jan.gehring@gmail.com>
#
package Rex::Interface::Exec::Local;
use v5.14.4;
use warnings;
our $VERSION = '1.16.1'; # VERSION
use Rex::Logger;
use Rex::Commands;
use English qw(-no_match_vars);
use Symbol 'gensym';
use IPC::Open3;
use IO::Select;
use Rex::Interface::Exec::IOReader;
# Use 'parent' is recommended, but from Perl 5.10.1 its in core
use base qw(Rex::Interface::Exec::Base Rex::Interface::Exec::IOReader);
sub new {
my $that = shift;
my $proto = ref($that) || $that;
my $self = {@_};
bless( $self, $proto );
return $self;
}
sub set_env {
my ( $self, $env ) = @_;
my $cmd = undef;
die("Error: env must be a hash")
if ( ref $env ne "HASH" );
while ( my ( $k, $v ) = each(%$env) ) {
$cmd .= $OSNAME eq 'MSWin32' ? "set $k=$v && " : "export $k='$v'; ";
}
$self->{env} = $cmd;
}
sub exec {
my ( $self, $cmd, $path, $option ) = @_;
my ( $out, $err, $pid );
if ( exists $option->{cwd} ) {
my $cd_cmd = $OSNAME eq 'MSWin32' ? 'cd /d' : 'cd';
$cmd = "$cd_cmd " . $option->{cwd} . " && $cmd";
}
if ( exists $option->{path} ) {
$path = $option->{path};
}
if ( exists $option->{env} ) {
$self->set_env( $option->{env} );
}
if ( exists $option->{format_cmd} ) {
$option->{format_cmd} =~ s/\{\{CMD\}\}/$cmd/;
$cmd = $option->{format_cmd};
}
Rex::Commands::profiler()->start("exec: $cmd");
if ( $^O !~ m/^MSWin/ ) {
if ($path) { $path = "PATH=$path" }
$path ||= "";
my $new_cmd = "LC_ALL=C $cmd";
if ($path) {
$new_cmd = "export $path ; $new_cmd";
}
if ( $self->{env} ) {
$new_cmd = $self->{env} . " $new_cmd";
}
if ( Rex::Config->get_source_global_profile ) {
$new_cmd = ". /etc/profile >/dev/null 2>&1; $new_cmd";
}
$cmd = $new_cmd;
}
else {
if ( $self->{env} ) {
$cmd = $self->{env} . " $cmd";
}
}
Rex::Logger::debug("Executing: $cmd");
( $out, $err ) = $self->_exec( $cmd, $option );
Rex::Logger::debug($out) if ($out);
if ($err) {
Rex::Logger::debug("========= ERR ============");
Rex::Logger::debug($err);
Rex::Logger::debug("========= ERR ============");
}
Rex::Commands::profiler()->end("exec: $cmd");
if (wantarray) { return ( $out, $err ); }
return $out;
}
sub can_run {
my ( $self, $commands_to_check, $check_with_command ) = @_;
$check_with_command ||= $^O =~ /^MSWin/i ? 'where' : 'command -v';
return $self->SUPER::can_run( $commands_to_check, $check_with_command );
}
sub _exec {
my ( $self, $cmd, $option ) = @_;
my ( $pid, $writer, $reader, $error, $out, $err );
$error = gensym;
if ( $^O !~ m/^MSWin/ && Rex::Config->get_no_tty ) {
$pid = open3( $writer, $reader, $error, $cmd );
( $out, $err ) = $self->io_read( $reader, $error, $pid, $option );
waitpid( $pid, 0 ) or die($!);
}
else {
$pid = open( my $fh, "-|", "$cmd 2>&1" ) or die($!);
while (<$fh>) {
$out .= $_;
chomp;
$self->execute_line_based_operation( $_, $option )
&& do { kill( 'KILL', $pid ); last };
}
waitpid( $pid, 0 ) or die($!);
}
# we need to bitshift $? so that $? contains the right (and for all
# connection methods the same) exit code after a run()/i_run() call.
# this is for the user, so that he can query $? in his task.
$? >>= 8;
return ( $out, $err );
}
1;
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