http://www.perlmonks.org?node_id=1023641


in reply to Help with Net::OpenSSH::Compat::SSH2

use statments are executed at compile time, even if you define them inside the body of a function.

In order to load Net::SSH2 or when not available, Net::OpenSSH::Compat::SSH2, this code should work:

BEGIN { eval { require Net::SSH2; 1 } or eval { require Net::OpenSSH::Compat::SSH2; Net::OpenSSH::Compat::SSH2->import(':supplant'); 1; } or die "unable to load any SSH module"; Net::SSH2->import(); }

Though, you would be better using Net::SSH::Any that takes care of doing all this conditional loading for you and provides a better API. It is still a work in progress, but basic functionality like running commands remotely and capturing the output already works fine.

update: the full script fixed:

use strict; use warnings; use Data::Dumper; my %connection_details = ( host => 'localhost', @ARGV); my $SFTP = SFTP_connection(%connection_details); print "SFTP: ", Dumper($SFTP), "\n"; exit (0); BEGIN { eval { require Net::SSH2; warn "Net::SSH2 loaded"; 1; } or eval { require Net::OpenSSH::Compat::SSH2; Net::OpenSSH::Compat::SSH2->import(':supplant'); warn "Net::SSH2 supplanted"; 1; } or die "unable to load any SSH module: $@"; Net::SSH2->import(); } sub SFTP_connection { my (%connection_info) = @_; ## Connect to the sFTP server my $SFTP = Net::SSH2->new(); $SFTP->connect($connection_info{'host'},22) or die "Unable to connect to the remote sFTP server \n\n $@"; ## Login to sFTP server $SFTP->auth_password($connection_info{'user'},$connection_info{'pa +ss'}) or die "Unable to login Check username and password. \n\n $@\n +"; return $SFTP; }