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# Perl module for generating output of the configuration.
#
# outputNewConfig()
# prints the "new" config, i.e., the active config with any un-committed
# changes. 'diff' notation is also generated to indicate the changes.
#
# outputActiveConfig()
# prints the "active" config. suitable for "saving", for example.
package VyattaConfigOutput;
use strict;
use lib '/opt/vyatta/share/perl5/';
use VyattaConfig;
# whether to show default values
my $show_all = 0;
sub set_show_all {
if (shift) {
$show_all = 1;
}
}
my $config = undef;
# $0: array ref for path
# $1: display prefix
# $2: node name
# $3: simple show (if defined, don't show diff prefix. used for "don't show as
# deleted" from displayDeletedOrigChildren.)
sub displayValues {
my @cur_path = @{$_[0]};
my $prefix = $_[1];
my $name = $_[2];
my $simple_show = $_[3];
my ($is_multi, $is_text, $default) = $config->parseTmpl(\@cur_path);
$config->setLevel(join ' ', @cur_path);
if ($is_multi) {
my @ovals = $config->returnOrigValues('');
my @nvals = $config->returnValues('');
if ($is_text) {
@ovals = map { "\"$_\""; } @ovals;
@nvals = map { "\"$_\""; } @nvals;
}
my $idx = 0;
my %ohash = map { $_ => ($idx++) } @ovals;
$idx = 0;
my %nhash = map { $_ => ($idx++) } @nvals;
my @dlist = map { if (!defined($nhash{$_})) { $_; } else { undef; } }
@ovals;
if (defined($simple_show)) {
foreach my $oval (@ovals) {
print "$prefix$name $oval\n";
}
return;
}
foreach my $del (@dlist) {
if (defined($del)) {
print "-$prefix$name $del\n";
}
}
foreach my $nval (@nvals) {
my $diff = '+';
if (defined($ohash{$nval})) {
if ($ohash{$nval} != $nhash{$nval}) {
$diff = '>';
} else {
$diff = ' ';
}
}
print "$diff$prefix$name $nval\n";
}
} else {
my $oval = $config->returnOrigValue('');
my $nval = $config->returnValue('');
if ($is_text) {
if (defined($oval)) {
$oval = "\"$oval\"";
}
if (defined($nval)) {
$nval = "\"$nval\"";
}
}
if (defined($simple_show)) {
if (!defined($default) || $default ne $oval || $show_all) {
print "$prefix$name: $oval\n";
}
return;
}
my $value = $nval;
my $diff = ' ';
if (!defined($oval) && defined($nval)) {
$diff = '+';
} elsif (!defined($nval) && defined($oval)) {
$diff = '-';
$value = $oval;
} else {
# both must be defined
if ($oval ne $nval) {
$diff = '>';
}
}
if (!defined($default) || $default ne $value || $show_all) {
print "$diff$prefix$name: $value\n";
}
}
}
# $0: array ref for path
# $1: display prefix
# $2: don't show as deleted? (if defined, config is shown as normal instead of
# deleted.)
sub displayDeletedOrigChildren {
my @cur_path = @{$_[0]};
my $prefix = $_[1];
my $dont_show_as_deleted = $_[2];
my $dprefix = '-';
if (defined($dont_show_as_deleted)) {
$dprefix = '';
}
$config->setLevel('');
my @children = $config->listOrigNodes(join ' ', @cur_path);
for my $child (sort @children) {
if ($child eq 'node.val') {
# should not happen!
next;
}
my $is_tag = $config->isTagNode([ @cur_path, $child ]);
$config->setLevel(join ' ', (@cur_path, $child));
my @cnames = sort $config->listOrigNodes();
if ($#cnames == 0 && $cnames[0] eq 'node.val') {
displayValues([ @cur_path, $child ], $prefix, $child,
$dont_show_as_deleted);
} elsif (scalar($#cnames) >= 0) {
if ($is_tag) {
foreach my $cname (@cnames) {
if ($cname eq 'node.val') {
# should not happen
next;
}
print "$dprefix$prefix$child $cname {\n";
displayDeletedOrigChildren([ @cur_path, $child, $cname ],
"$prefix ", $dont_show_as_deleted);
print "$dprefix$prefix}\n";
}
} else {
print "$dprefix$prefix$child {\n";
displayDeletedOrigChildren([ @cur_path, $child ], "$prefix ",
$dont_show_as_deleted);
print "$dprefix$prefix}\n";
}
} else {
my $has_tmpl_children = $config->hasTmplChildren([ @cur_path, $child ]);
print "$dprefix$prefix$child"
. ($has_tmpl_children ? " {\n$dprefix$prefix}\n" : "\n");
}
}
}
# $0: hash ref for children status
# $1: array ref for path
# $2: display prefix
sub displayChildren {
my %child_hash = %{$_[0]};
my @cur_path = @{$_[1]};
my $prefix = $_[2];
for my $child (sort (keys %child_hash)) {
if ($child eq 'node.val') {
# should not happen!
next;
}
my ($diff, $vdiff) = (' ', ' ');
if ($child_hash{$child} eq 'added') {
$diff = '+';
$vdiff = '+';
} elsif ($child_hash{$child} eq 'deleted') {
$diff = '-';
$vdiff = '-';
} elsif ($child_hash{$child} eq 'changed') {
$vdiff = '>';
}
my $is_tag = $config->isTagNode([ @cur_path, $child ]);
$config->setLevel(join ' ', (@cur_path, $child));
my %cnodes = $config->listNodeStatus();
my @cnames = sort keys %cnodes;
if ($#cnames == 0 && $cnames[0] eq 'node.val') {
displayValues([ @cur_path, $child ], $prefix, $child);
} elsif (scalar($#cnames) >= 0) {
if ($is_tag) {
foreach my $cname (@cnames) {
if ($cname eq 'node.val') {
# should not happen
next;
}
my $tdiff = ' ';
if ($cnodes{$cname} eq 'deleted') {
$tdiff = '-';
} elsif ($cnodes{$cname} eq 'added') {
$tdiff = '+';
}
print "$tdiff$prefix$child $cname {\n";
if ($cnodes{$cname} eq 'deleted') {
displayDeletedOrigChildren([ @cur_path, $child, $cname ],
"$prefix ");
} else {
$config->setLevel(join ' ', (@cur_path, $child, $cname));
my %ccnodes = $config->listNodeStatus();
displayChildren(\%ccnodes, [ @cur_path, $child, $cname ],
"$prefix ");
}
print "$tdiff$prefix}\n";
}
} else {
print "$diff$prefix$child {\n";
if ($child_hash{$child} eq 'deleted') {
# this should not happen
displayDeletedOrigChildren([ @cur_path, $child ], "$prefix ");
} else {
displayChildren(\%cnodes, [ @cur_path, $child ], "$prefix ");
}
print "$diff$prefix}\n";
}
} else {
if ($child_hash{$child} eq 'deleted') {
$config->setLevel('');
my @onodes = $config->listOrigNodes(join ' ', (@cur_path, $child));
if ($#onodes == 0 && $onodes[0] eq 'node.val') {
displayValues([ @cur_path, $child ], $prefix, $child);
} else {
print "$diff$prefix$child {\n";
displayDeletedOrigChildren([ @cur_path, $child ], "$prefix ");
print "$diff$prefix}\n";
}
} else {
my $has_tmpl_children
= $config->hasTmplChildren([ @cur_path, $child ]);
print "$diff$prefix$child"
. ($has_tmpl_children ? " {\n$diff$prefix}\n" : "\n");
}
}
}
}
# @ARGV: represents the 'root' path. the output starts at this point under
# the new config.
sub outputNewConfig {
$config = new VyattaConfig;
$config->setLevel(join ' ', @_);
my %rnodes = $config->listNodeStatus();
if (scalar(keys %rnodes) > 0) {
my @rn = keys %rnodes;
if ($#rn == 0 && $rn[0] eq 'node.val') {
# this is a leaf value-node
displayValues([ @_ ], '', $_[$#_]);
} else {
displayChildren(\%rnodes, [ @_ ], '');
}
} else {
if (defined($config->existsOrig()) && !defined($config->exists())) {
# this is a deleted node
print 'Configuration under "' . (join ' ', @_) . "\" has been deleted\n";
} else {
print "Current configuration is empty\n";
}
}
}
# @ARGV: represents the 'root' path. the output starts at this point under
# the active config.
sub outputActiveConfig {
$config = new VyattaConfig;
$config->setLevel(join ' ', @_);
displayDeletedOrigChildren([ @_ ], '', 1);
}
1;
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