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btrbk
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btrbk: hint missing ssh_identity on errors 

It is perfectly ok to run btrbk without ssh_identity (using ssh
defaults), printing a warning if the option is not set is wrong.
Instead, hackily check for ssh_identity on ssh errors, and give a hint
in the error message.
disable-ssh-password-prompt
Axel Burri 2022-07-28 13:36:20 +02:00
parent 67020797ff
commit cf2065df30
1 changed files with 3 additions and 6 deletions
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@ -842,7 +842,7 @@ sub run_cmd(@)
push @filter_stderr, ((ref($href->{filter_stderr}) eq "ARRAY") ? @{$href->{filter_stderr}} : $href->{filter_stderr}) if($href->{filter_stderr});
$fatal_stderr = $href->{fatal_stderr} if($href->{fatal_stderr});
$destructive = 1 unless($href->{non_destructive});
$has_rsh = 1 if($href->{rsh});
$has_rsh = $href->{rsh} if($href->{rsh});
$large_output = 1 if($href->{large_output});
if($href->{redirect_to_file}) {
@ -994,6 +994,7 @@ sub run_cmd(@)
if($has_rsh && ($exitcode == 255)) {
# SSH returns exit status 255 if an error occurred (including
# network errors, dns failures).
unshift @stderr, "(note: option \"ssh_identity\" is not set, using ssh defaults)" unless(grep /^-i$/, @$has_rsh);
unshift @stderr, "SSH command failed (exitcode=$exitcode)";
} else {
unshift @stderr, "Command execution failed (exitcode=$exitcode)";
@ -2752,11 +2753,7 @@ sub vinfo_rsh($;@)
my @ssh_options; # as of btrbk-0.29.0, we run ssh without -q (catching @stderr)
push(@ssh_options, '-p', $ssh_port) if($ssh_port);
push(@ssh_options, '-c', $ssh_cipher_spec) if($ssh_cipher_spec ne "default");
if($ssh_identity) {
push(@ssh_options, '-i', { unsafe => $ssh_identity });
} else {
WARN_ONCE "No SSH identity provided (option ssh_identity is not set) for: " . ($vinfo->{CONFIG}->{url} // $vinfo->{PRINT});
}
push(@ssh_options, '-i', { unsafe => $ssh_identity }) if($ssh_identity); # NOTE: hackily used in run_cmd on errors
if($opts{disable_compression}) {
push(@ssh_options, '-o', 'compression=no'); # force ssh compression=no (in case it is defined in ssh_config)
} elsif($ssh_compression) {