use strict;
use warnings;
+use JSON;
+use Scalar::Util qw(weaken);
+
use PVE::SafeSyslog;
use PVE::Exception qw(raise raise_param_exc);
+use PVE::JSONSchema;
use PVE::RESTHandler;
+use PVE::PTY;
use PVE::INotify;
+use PVE::CLIFormatter;
use base qw(PVE::RESTHandler);
+# $cmddef defines which (sub)commands are available in a specific CLI class.
+# A real command is always an array consisting of its class, name, array of
+# position fixed (required) parameters and hash of predefined parameters when
+# mapping a CLI command t o an API call. Optionally an output method can be
+# passed at the end, e.g., for formatting or transformation purpose, and
+# a schema of additional properties/arguments which are added to
+# the method schema and gets passed to the formatter.
+#
+# [class, name, fixed_params, API_pre-set params, output_sub ]
+#
+# In case of so called 'simple commands', the $cmddef can be also just an
+# array.
+#
+# Examples:
+# $cmddef = {
+# command => [ 'PVE::API2::Class', 'command', [ 'arg1', 'arg2' ], { node => $nodename } ],
+# do => {
+# this => [ 'PVE::API2::OtherClass', 'method', [ 'arg1' ], undef, sub {
+# my ($res) = @_;
+# print "$res\n";
+# }],
+# that => [ 'PVE::API2::OtherClass', 'subroutine' [] ],
+# },
+# dothat => { alias => 'do that' },
+# }
my $cmddef;
my $exename;
my $cli_handler_class;
+my $standard_mappings = {
+ 'pve-password' => {
+ name => 'password',
+ desc => '<password>',
+ interactive => 1,
+ func => sub {
+ my ($value) = @_;
+ return $value if $value;
+ return PVE::PTY::get_confirmed_password();
+ },
+ },
+};
+sub get_standard_mapping {
+ my ($name, $base) = @_;
+
+ my $std = $standard_mappings->{$name};
+ die "no such standard mapping '$name'\n" if !$std;
+
+ my $res = $base || {};
+
+ foreach my $opt (keys %$std) {
+ next if defined($res->{$opt});
+ $res->{$opt} = $std->{$opt};
+ }
+
+ return $res;
+}
+
+my $gen_param_mapping_func = sub {
+ my ($cli_handler_class) = @_;
+
+ my $param_mapping = $cli_handler_class->can('param_mapping');
+
+ if (!$param_mapping) {
+ my $read_password = $cli_handler_class->can('read_password');
+ my $string_param_mapping = $cli_handler_class->can('string_param_file_mapping');
+
+ return $string_param_mapping if !$read_password;
+
+ $param_mapping = sub {
+ my ($name) = @_;
+
+ my $password_map = get_standard_mapping('pve-password', {
+ func => $read_password
+ });
+ my $map = $string_param_mapping ? $string_param_mapping->($name) : [];
+ return [@$map, $password_map];
+ };
+ }
+
+ return $param_mapping;
+};
+
my $assert_initialized = sub {
my @caller = caller;
die "$caller[0]:$caller[2] - not initialized\n"
};
my $expand_command_name = sub {
- my ($def, $cmd) = @_;
+ my ($def, $cmd, $enforce_exact) = @_;
- if (!$def->{$cmd}) {
- my @expanded = grep { /^\Q$cmd\E/ } keys %$def;
- return $expanded[0] if scalar(@expanded) == 1; # enforce exact match
- }
- return $cmd;
+ return $cmd if exists $def->{$cmd}; # command is already complete
+
+ my $is_alias = sub { ref($_[0]) eq 'HASH' && exists($_[0]->{alias}) };
+ my @expanded = grep { /^\Q$cmd\E/ && !$is_alias->($def->{$_}) } keys %$def;
+
+ return @expanded if !$enforce_exact;
+
+ return $expanded[0] if scalar(@expanded) == 1; # enforce exact match
+
+ return undef;
};
my $get_commands = sub {
my ($argv, $is_alias) = @_;
my ($def, $cmd) = ($cmddef, $argv);
+ my $cmdstr = $exename;
if (ref($argv) eq 'ARRAY') {
- my $expanded = {};
+ my $expanded_last_arg;
my $last_arg_id = scalar(@$argv) - 1;
for my $i (0..$last_arg_id) {
- $cmd = $expand_command_name->($def, $argv->[$i]);
- $expanded->{$argv->[$i]} = $cmd if $cmd ne $argv->[$i];
- last if !defined($def->{$cmd});
+ $cmd = $expand_command_name->($def, $argv->[$i], 1);
+ if (defined($cmd)) {
+ # If the argument was expanded (or was already complete) and it
+ # is the final argument, tell our caller about it:
+ $expanded_last_arg = $cmd if $i == $last_arg_id;
+ } else {
+ # Otherwise continue with the unexpanded version of it.
+ $cmd = $argv->[$i];
+ }
+ $cmdstr .= " $cmd";
+ if (!defined($def->{$cmd})) {
+ # $cmd still could be a valid prefix for bash_completion
+ # in that case keep $def as it is, else set it to undef
+ $def = undef if !$expand_command_name->($def, $cmd);
+ last;
+ }
$def = $def->{$cmd};
if (ref($def) eq 'ARRAY') {
# could expand to a real command, rest of $argv are its arguments
my $cmd_args = [ @$argv[$i+1..$last_arg_id] ];
- return ($cmd, $def, $cmd_args, $expanded);
+ return ($cmd, $def, $cmd_args, $expanded_last_arg, $cmdstr);
}
if (defined($def->{alias})) {
# got either a special command (bashcomplete, verifyapi) or an unknown
# cmd, just return first entry as cmd and the rest of $argv as cmd_arg
my $cmd_args = [ @$argv[1..$last_arg_id] ];
- return ($argv->[0], $def, $cmd_args, $expanded);
+ return ($argv->[0], $def, $cmd_args, $expanded_last_arg, $cmdstr);
}
- return ($cmd, $def);
+ return ($cmd, $def, undef, undef, $cmdstr);
}
sub generate_usage_str {
$separator //= '';
$indent //= '';
- my $can_read_pass = $cli_handler_class->can('read_password');
- my $can_str_param_fmap = $cli_handler_class->can('string_param_file_mapping');
+ my $param_cb = $gen_param_mapping_func->($cli_handler_class);
- my ($subcmd, $def) = resolve_cmd($cmd);
+ my ($subcmd, $def, undef, undef, $cmdstr) = resolve_cmd($cmd);
- my $generate;
- $generate = sub {
+ my $generate_weak;
+ $generate_weak = sub {
my ($indent, $separator, $def, $prefix) = @_;
my $str = '';
if (ref($def) eq 'HASH') {
my $oldclass = undef;
- foreach my $cmd (&$sortfunc($def)) {
+ foreach my $cmd ($sortfunc->($def)) {
if (ref($def->{$cmd}) eq 'ARRAY') {
- my ($class, $name, $arg_param, $fixed_param) = @{$def->{$cmd}};
+ my ($class, $name, $arg_param, $fixed_param, undef, $formatter_properties) = @{$def->{$cmd}};
$str .= $separator if $oldclass && $oldclass ne $class;
$str .= $indent;
- $str .= $class->usage_str($name, "$prefix $cmd", $arg_param,
- $fixed_param, $format,
- $can_read_pass, $can_str_param_fmap);
+ $str .= $class->usage_str(
+ $name, "$prefix $cmd", $arg_param, $fixed_param, $format, $param_cb, $formatter_properties);
+
$oldclass = $class;
} elsif (defined($def->{$cmd}->{alias}) && ($format eq 'asciidoc')) {
- $str .= "*$prefix $cmd*\n\nAn alias for '$exename $def->{$cmd}->{alias}'.\n\n";
+ $str .= "*$prefix $cmd*\n\nAn alias for '$prefix $def->{$cmd}->{alias}'.\n\n";
} else {
next if $def->{$cmd}->{alias};
- my $substr = $generate->($indent, $separator, $def->{$cmd}, "$prefix $cmd");
+ my $substr = $generate_weak->($indent, '', $def->{$cmd}, "$prefix $cmd");
if ($substr) {
$substr .= $separator if $substr !~ /\Q$separator\E{2}/;
$str .= $substr;
}
} else {
- my ($class, $name, $arg_param, $fixed_param) = @$def;
- $abort->("unknown command '$cmd'") if !$class;
+ $abort->("unknown command '$cmd->[0]'") if !$def;
+ my ($class, $name, $arg_param, $fixed_param, undef, $formatter_properties) = @$def;
$str .= $indent;
- $str .= $class->usage_str($name, $prefix, $arg_param, $fixed_param, $format,
- $can_read_pass, $can_str_param_fmap);
+ $str .= $class->usage_str($name, $prefix, $arg_param, $fixed_param, $format, $param_cb, $formatter_properties);
}
return $str;
};
-
- my $cmdstr = $exename;
- $cmdstr .= ' ' . join(' ', @$cmd) if defined($cmd);
+ my $generate = $generate_weak;
+ weaken($generate_weak);
return $generate->($indent, $separator, $def, $cmdstr);
}
parameters => {
additionalProperties => 0,
properties => {
- cmd => {
- description => "Command name",
- type => 'string',
- optional => 1,
+ 'extra-args' => PVE::JSONSchema::get_standard_option('extra-args', {
+ description => 'Shows help for a specific command',
completion => $complete_command_names,
- },
+ }),
verbose => {
description => "Verbose output format.",
type => 'boolean',
$assert_initialized->();
- my $cmd = $param->{cmd};
+ my $cmd = $param->{'extra-args'};
- my $verbose = defined($cmd) && $cmd;
+ my $verbose = defined($cmd) && $cmd;
$verbose = $param->{verbose} if defined($param->{verbose});
if (!$cmd) {
$assert_initialized->();
print $fd "ERROR: $msg\n" if $msg;
- print $fd "USAGE: $exename <COMMAND> [ARGS] [OPTIONS]\n";
+ print $fd "USAGE: $exename <COMMAND> [ARGS] [OPTIONS]\n\n";
- print {$fd} generate_usage_str('short', $cmd, ' ' x 7, "\n", sub {
+ print {$fd} generate_usage_str('short', $cmd, ' ' x 7, $cmd ? '' : "\n", sub {
my ($h) = @_;
- return sort {
+ my @sorted_commands = sort {
if (ref($h->{$a}) eq 'ARRAY' && ref($h->{$b}) eq 'ARRAY') {
# $a and $b are both real commands order them by their class
return $h->{$a}->[0] cmp $h->{$b}->[0] || $a cmp $b;
return $a cmp $b;
}
} keys %$h;
+ return @sorted_commands;
});
}
shift @$args; # no need for program name
my $print_result = sub {
foreach my $p (@_) {
- print "$p\n" if $p =~ m/^$cur/;
+ print "$p\n" if $p =~ m/^\Q$cur\E/;
}
};
my ($cmd, $def) = ($simple_cmd, $cmddef);
if (!$simple_cmd) {
- ($cmd, $def, $args, my $expaned) = resolve_cmd($args);
+ ($cmd, $def, $args, my $expanded) = resolve_cmd($args);
- if (ref($def) eq 'HASH') {
- &$print_result(@{$get_commands->($def)});
+ if (defined($expanded) && $prev ne $expanded) {
+ print "$expanded\n";
return;
}
- if (my $expanded_cmd = $expaned->{$cur}) {
- print "$expanded_cmd\n";
+
+ if (ref($def) eq 'HASH') {
+ &$print_result(@{$get_commands->($def)});
return;
}
}
my $skip_param = {};
- my ($class, $name, $arg_param, $uri_param) = @$def;
+ my ($class, $name, $arg_param, $uri_param, undef, $formatter_properties) = @$def;
$arg_param //= [];
$uri_param //= {};
my $info = $class->map_method_by_name($name);
- my $prop = $info->{parameters}->{properties};
+ my $prop = { %{$info->{parameters}->{properties}} }; # copy
+ $prop = { %$prop, %$formatter_properties } if $formatter_properties;
my $print_parameter_completion = sub {
my ($pname) = @_;
my $res = $d->{completion}->($cmd, $pname, $cur, $args);
&$print_result(@$res);
}
- } elsif ($d->{type} eq 'boolean') {
+ } elsif ($d->{type} && $d->{type} eq 'boolean') {
&$print_result('0', '1');
} elsif ($d->{enum}) {
&$print_result(@{$d->{enum}});
};
# positional arguments
- $pos++ if $simple_cmd;
if ($pos < scalar(@$arg_param)) {
my $pname = $arg_param->[$pos];
&$print_parameter_completion($pname);
__EOD__
}
+sub generate_zsh_completions {
+ my ($class) = @_;
+
+ # generate zsh completion config
+
+ $exename = &$get_exe_name($class);
+
+ print <<__EOD__;
+#compdef _$exename $exename
+
+function _$exename() {
+ local cwords line point cmd curr prev
+ cwords=\${#words[@]}
+ line=\$words
+ point=\${#line}
+ cmd=\${words[1]}
+ curr=\${words[cwords]}
+ prev=\${words[cwords-1]}
+ compadd -- \$(COMP_CWORD="\$cwords" COMP_LINE="\$line" COMP_POINT="\$point" \\
+ $exename bashcomplete "\$cmd" "\$curr" "\$prev")
+}
+__EOD__
+}
+
sub generate_asciidoc_synopsys {
my ($class) = @_;
$class->generate_asciidoc_synopsis();
$exename = &$get_exe_name($class);
- no strict 'refs';
- my $def = ${"${class}::cmddef"};
- $cmddef = $def;
+ {
+ no strict 'refs'; ## no critic (ProhibitNoStrict)
+ $cmddef = ${"${class}::cmddef"};
+ }
- if (ref($def) eq 'ARRAY') {
+ if (ref($cmddef) eq 'ARRAY') {
print_simple_asciidoc_synopsis();
} else {
$cmddef->{help} = [ __PACKAGE__, 'help', ['cmd'] ];
}
my $handle_cmd = sub {
- my ($args, $pwcallback, $preparefunc, $stringfilemap) = @_;
+ my ($args, $preparefunc, $param_cb) = @_;
- $cmddef->{help} = [ __PACKAGE__, 'help', ['cmd'] ];
+ $cmddef->{help} = [ __PACKAGE__, 'help', ['extra-args'] ];
- my $cmd_str = join(' ', @$args);
- my ($cmd, $def, $cmd_args) = resolve_cmd($args);
+ my ($cmd, $def, $cmd_args, undef, $cmd_str) = resolve_cmd($args);
$abort->("no command specified") if !$cmd;
}
# checked special commands, if def is still a hash we got an incomplete sub command
- $abort->("incomplete command '$exename $cmd_str'") if ref($def) eq 'HASH';
+ $abort->("incomplete command '$cmd_str'", $args) if ref($def) eq 'HASH';
&$preparefunc() if $preparefunc;
- my ($class, $name, $arg_param, $uri_param, $outsub) = @{$cmddef->{$cmd} || []};
+ my ($class, $name, $arg_param, $uri_param, $outsub, $formatter_properties) = @{$def || []};
$abort->("unknown command '$cmd_str'") if !$class;
- my $prefix = "$exename $cmd_str";
- my $res = $class->cli_handler($prefix, $name, $cmd_args, $arg_param, $uri_param, $pwcallback, $stringfilemap);
+ my ($res, $formatter_params) = $class->cli_handler(
+ $cmd_str, $name, $cmd_args, $arg_param, $uri_param, $param_cb, $formatter_properties);
- &$outsub($res) if $outsub;
+ if (defined $outsub) {
+ my $result_schema = $class->map_method_by_name($name)->{returns};
+ $outsub->($res, $result_schema, $formatter_params);
+ }
};
my $handle_simple_cmd = sub {
- my ($args, $pwcallback, $preparefunc, $stringfilemap) = @_;
+ my ($args, $preparefunc, $param_cb) = @_;
- my ($class, $name, $arg_param, $uri_param, $outsub) = @{$cmddef};
+ my ($class, $name, $arg_param, $uri_param, $outsub, $formatter_properties) = @{$cmddef};
die "no class specified" if !$class;
if (scalar(@$args) >= 1) {
&$preparefunc() if $preparefunc;
- my $res = $class->cli_handler($name, $name, \@ARGV, $arg_param, $uri_param, $pwcallback, $stringfilemap);
+ my ($res, $formatter_params) = $class->cli_handler(
+ $name, $name, \@ARGV, $arg_param, $uri_param, $param_cb, $formatter_properties);
- &$outsub($res) if $outsub;
+ if (defined $outsub) {
+ my $result_schema = $class->map_method_by_name($name)->{returns};
+ $outsub->($res, $result_schema, $formatter_params);
+ }
};
sub run_cli_handler {
my $preparefunc = $params{prepare};
- my $pwcallback = $class->can('read_password');
- my $stringfilemap = $class->can('string_param_file_mapping');
+ my $param_cb = $gen_param_mapping_func->($cli_handler_class);
$exename = &$get_exe_name($class);
- initlog($exename);
+ my $logid = $ENV{PVE_LOG_ID} || $exename;
+ initlog($logid);
- no strict 'refs';
- $cmddef = ${"${class}::cmddef"};
+ {
+ no strict 'refs'; ## no critic (ProhibitNoStrict)
+ $cmddef = ${"${class}::cmddef"};
+ }
if (ref($cmddef) eq 'ARRAY') {
- &$handle_simple_cmd(\@ARGV, $pwcallback, $preparefunc, $stringfilemap);
+ $handle_simple_cmd->(\@ARGV, $preparefunc, $param_cb);
} else {
- &$handle_cmd(\@ARGV, $pwcallback, $preparefunc, $stringfilemap);
+ $handle_cmd->(\@ARGV, $preparefunc, $param_cb);
}
exit 0;