+my $print_bash_completion = sub {
+ my ($cmddef, $simple_cmd, $bash_command, $cur, $prev) = @_;
+
+ my $debug = 0;
+
+ return if !(defined($cur) && defined($prev) && defined($bash_command));
+ return if !defined($ENV{COMP_LINE});
+ return if !defined($ENV{COMP_POINT});
+
+ my $cmdline = substr($ENV{COMP_LINE}, 0, $ENV{COMP_POINT});
+ print STDERR "\nCMDLINE: $ENV{COMP_LINE}\n" if $debug;
+
+ my $args = PVE::Tools::split_args($cmdline);
+ my $pos = scalar(@$args) - 2;
+ $pos += 1 if $cmdline =~ m/\s+$/;
+
+ print STDERR "CMDLINE:$pos:$cmdline\n" if $debug;
+
+ return if $pos < 0;
+
+ my $print_result = sub {
+ foreach my $p (@_) {
+ print "$p\n" if $p =~ m/^$cur/;
+ }
+ };
+
+ my $cmd;
+ if ($simple_cmd) {
+ $cmd = $simple_cmd;
+ } else {
+ if ($pos == 0) {
+ &$print_result(keys %$cmddef);
+ return;
+ }
+ $cmd = $args->[1];
+ }
+
+ my $def = $cmddef->{$cmd};
+ return if !$def;
+
+ print STDERR "CMDLINE1:$pos:$cmdline\n" if $debug;
+
+ my $skip_param = {};
+
+ my ($class, $name, $arg_param, $uri_param) = @$def;
+ $arg_param //= [];
+ $uri_param //= {};
+
+ $arg_param = [ $arg_param ] if !ref($arg_param);
+
+ map { $skip_param->{$_} = 1; } @$arg_param;
+ map { $skip_param->{$_} = 1; } keys %$uri_param;
+
+ my $fpcount = scalar(@$arg_param);
+
+ my $info = $class->map_method_by_name($name);
+
+ my $schema = $info->{parameters};
+ my $prop = $schema->{properties};
+
+ my $print_parameter_completion = sub {
+ my ($pname) = @_;
+ my $d = $prop->{$pname};
+ if ($d->{completion}) {
+ my $vt = ref($d->{completion});
+ if ($vt eq 'CODE') {
+ my $res = $d->{completion}->($cmd, $pname, $cur, $args);
+ &$print_result(@$res);
+ }
+ } elsif ($d->{type} eq 'boolean') {
+ &$print_result('0', '1');
+ } elsif ($d->{enum}) {
+ &$print_result(@{$d->{enum}});
+ }
+ };
+
+ # positional arguments
+ $pos += 1 if $simple_cmd;
+ if ($fpcount && $pos <= $fpcount) {
+ my $pname = $arg_param->[$pos -1];
+ &$print_parameter_completion($pname);
+ return;
+ }
+
+ my @option_list = ();
+ foreach my $key (keys %$prop) {
+ next if $skip_param->{$key};
+ push @option_list, "--$key";
+ }
+
+ if ($cur =~ m/^-/) {
+ &$print_result(@option_list);
+ return;
+ }
+
+ if ($prev =~ m/^--?(.+)$/ && $prop->{$1}) {
+ my $pname = $1;
+ &$print_parameter_completion($pname);
+ return;
+ }
+
+ &$print_result(@option_list);
+};
+
+sub verify_api {
+ my ($class) = @_;
+
+ # simply verify all registered methods
+ PVE::RESTHandler::validate_method_schemas();
+}
+
+my $get_exe_name = sub {
+ my ($class) = @_;
+
+ my $name = $class;
+ $name =~ s/^.*:://;
+ $name =~ s/_/-/g;
+
+ return $name;
+};
+
+sub generate_bash_completions {
+ my ($class) = @_;
+
+ # generate bash completion config
+
+ $exename = &$get_exe_name($class);
+
+ print <<__EOD__;
+# $exename bash completion
+
+# see http://tiswww.case.edu/php/chet/bash/FAQ
+# and __ltrim_colon_completions() in /usr/share/bash-completion/bash_completion
+# this modifies global var, but I found no better way
+COMP_WORDBREAKS=\${COMP_WORDBREAKS//:}
+
+complete -o default -C '$exename bashcomplete' $exename
+__EOD__
+}
+
+sub generate_asciidoc_synopsys {
+ my ($class) = @_;
+ $class->generate_asciidoc_synopsis();
+};
+
+sub generate_asciidoc_synopsis {
+ my ($class) = @_;
+
+ $cli_handler_class = $class;
+
+ $exename = &$get_exe_name($class);
+
+ no strict 'refs';
+ my $def = ${"${class}::cmddef"};
+
+ if (ref($def) eq 'ARRAY') {
+ print_simple_asciidoc_synopsis(@$def);
+ } else {
+ $cmddef = $def;
+
+ $cmddef->{help} = [ __PACKAGE__, 'help', ['cmd'] ];
+
+ print_asciidoc_synopsis();
+ }
+}
+
+# overwrite this if you want to run/setup things early
+sub setup_environment {
+ my ($class) = @_;
+
+ # do nothing by default
+}
+
+my $handle_cmd = sub {
+ my ($def, $cmdname, $cmd, $args, $pwcallback, $preparefunc, $stringfilemap) = @_;