/usr/share/perl5/FCM/CLI.pm is in fcm 2016.12.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# (C) British Crown Copyright 2006-16 Met Office.
#
# This file is part of FCM, tools for managing and building source code.
#
# FCM is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# FCM is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with FCM. If not, see <http://www.gnu.org/licenses/>.
# ------------------------------------------------------------------------------
use strict;
use warnings;
# ------------------------------------------------------------------------------
package FCM::CLI;
use base qw{FCM::Class::CODE};
use FCM::CLI::Exception;
use FCM::CLI::Parser;
use FCM::Context::Event;
use FCM::System;
use FindBin;
use File::Basename qw{dirname};
use File::Spec::Functions qw{catfile rel2abs};
use Pod::Usage qw{pod2usage};
my $E = 'FCM::CLI::Exception';
our $EVENT;
our $S;
our %ACTION_OF = (
# Commands handled by FCM
'add' => _opt_func('check', sub {$S->cm_check_unknown(@_)}),
'branch' => \&_branch,
'branch-create' => _sys_func(sub {$S->cm_branch_create(@_)}),
'branch-delete' => _sys_func(sub {$S->cm_branch_delete(@_)}),
'branch-diff' => _sys_func(sub {$S->cm_branch_diff(@_)}),
'branch-info' => _sys_func(sub {$S->cm_branch_info(@_)}),
'branch-list' => _sys_func(sub {$S->cm_branch_list(@_)}),
'browse' => _sys_func(sub {$S->browse(@_)}),
'build' => _sys_func(sub {$S->build(@_)}),
'cfg-print' => _sys_func(sub {$S->config_parse(@_)}),
'checkout' => _sys_func(sub {$S->cm_checkout(@_)}),
'cmp-ext-cfg' => _sys_func(sub {$S->config_compare(@_)}),
'commit' => _sys_func(sub {$S->cm_commit(@_)}),
'conflicts' => _sys_func(sub {$S->cm_resolve_conflicts(@_)}),
'delete' => _opt_func('check', sub {$S->cm_check_missing(@_)}),
'diff' => _opt_func(
'branch', sub {$S->cm_branch_diff(@_)}, sub {$S->cm_diff(@_)},
),
'export-items' => _sys_func(sub {$S->export_items(@_)}),
'extract' => _sys_func(sub {$S->extract(@_)}),
'gui' => \&_gui,
'help' => \&_help,
'keyword-print' => _sys_func(sub {$S->keyword_find(@_)}),
'loc-layout' => _sys_func(sub {$S->cm_loc_layout(@_)}),
'merge' => _sys_func(sub {$S->cm_merge(@_)}),
'mkpatch' => _sys_func(sub {$S->cm_mkpatch(@_)}),
'make' => _sys_func(sub {$S->make(@_)}),
'project-create'=> _sys_func(sub {$S->cm_project_create(@_)}),
'switch' => _opt_func(
'relocate', sub {$S->svn(@_)}, sub {$S->cm_switch(@_)},
),
'test-battery' => \&_test_battery,
'update' => _sys_func(sub {$S->cm_update(@_)}),
'version' => \&_version,
# Commands passed directly to "svn"
map {($_ => _sys_func())} qw{
blame
cat
cleanup
copy
export
import
info
list
lock
log
mergeinfo
mkdir
move
patch
propdel
propedit
propget
proplist
propset
relocate
resolve
resolved
revert
status
unlock
upgrade
},
);
# List of overridden subcommands that need to display "svn help"
our %CLI_MORE_HELP_FOR = map {($_, 1)} (qw{add delete diff switch update});
# Creates the class.
__PACKAGE__->class(
{'gui' => '$', 'parser' => 'FCM::CLI::Parser', 'system' => 'FCM::System'},
{ init => sub {
my $attrib_ref = shift();
$attrib_ref->{parser} ||= FCM::CLI::Parser->new();
$attrib_ref->{system}
||= FCM::System->new({'gui' => $attrib_ref->{'gui'}});
},
action_of => {main => \&_main},
},
);
# The main CLI action.
sub _main {
my ($attrib_ref, @argv) = @_;
local($EVENT) = sub {$attrib_ref->{system}->util()->event(@_)};
my ($app, $option_ref, @args) = eval {$attrib_ref->{parser}->parse(@argv)};
if (my $e = $@) {
_err($attrib_ref, \@argv, $e);
}
if (!$app || $option_ref->{help}) {
return _help($attrib_ref, $app);
}
$option_ref ||= {};
my $q = $option_ref->{quiet} || 0;
my $v = $option_ref->{verbose} || 0;
my $reporter = $attrib_ref->{system}->util()->util_of_report();
my $verbosity = $reporter->DEFAULT + $v - $q;
if (exists($ENV{FCM_DEBUG}) && $ENV{FCM_DEBUG} eq 'true') {
$verbosity = $reporter->DEBUG;
}
$reporter->get_ctx_of_stderr()->set_verbosity($verbosity);
$reporter->get_ctx_of_stdout()->set_verbosity($verbosity);
my @context = eval {
if (!exists($ACTION_OF{$app})) {
return $E->throw($E->APP, \@argv);
}
$ACTION_OF{$app}->($attrib_ref, $app, $option_ref, @args);
};
if (my $e = $@) {
return _err($attrib_ref, \@argv, $e);
}
}
# "fcm branch".
sub _branch {
my ($attrib_ref, $app, $option_ref, @args) = @_;
my $method
= exists($option_ref->{create}) ? 'cm_branch_create'
: exists($option_ref->{delete}) ? 'cm_branch_delete'
: exists($option_ref->{list}) ? 'cm_branch_list'
: 'cm_branch_info'
;
if ($option_ref->{create}) {
if (!$option_ref->{name}) {
return $E->throw($E->OPT, [$app, @args]);
}
my $name = delete($option_ref->{name});
unshift(@args, $name);
}
$attrib_ref->{system}->($method, $option_ref, @args);
}
# Handles FCM::Exception.
sub _err {
my ($attrib_ref, $argv_ref, $e) = @_;
$EVENT->(FCM::Context::Event->E, $e) || die($e);
die("\n");
}
# "fcm gui".
sub _gui {
my ($attrib_ref, $app, $option_ref, @args) = @_;
exec("$FindBin::Bin/fcm_gui", @args);
}
# Implements "fcm help" and usage.
sub _help {
my ($attrib_ref, $app, $option_ref, @args) = @_;
$app ||= 'help';
my @keys = ($app eq 'help' && @args) ? @args : (q{});
for my $key (@keys) {
if (exists($FCM::CLI::Parser::PREF_NAME_OF{$key})) {
$key = $FCM::CLI::Parser::PREF_NAME_OF{$key};
}
my $pod
= $key ? catfile(dirname($INC{'FCM/CLI.pm'}), 'CLI', "fcm-$key.pod")
: $0
;
if ($pod eq $0) {
_version($attrib_ref, $app, $option_ref, @args);
}
my $has_pod = -f $pod;
if ($has_pod) {
my $reporter = $attrib_ref->{system}->util()->util_of_report();
my $verbosity = $reporter->get_ctx_of_stdout()->get_verbosity();
pod2usage({
'-exitval' => 'NOEXIT',
'-input' => $pod,
'-verbose' => $verbosity,
});
}
if (!$has_pod || exists($CLI_MORE_HELP_FOR{$key})) {
$attrib_ref->{system}->svn('help', {}, $key ? $key : ())
}
}
return;
}
# "fcm test-battery".
sub _test_battery {
my ($attrib_ref, $app, $option_ref, @args) = @_;
exec("$FindBin::Bin/fcm_test_battery", @args);
}
# Returns a function that select the alternate handler for the application. The
# handler is either $method_id (if $opt_id is set) or "svn".
sub _opt_func {
my ($opt_id, $code0_ref, $code1_ref) = @_;
$code0_ref = _sys_func($code0_ref);
$code1_ref = _sys_func($code1_ref);
sub {
my ($attrib_ref, $app, $option_ref, @args) = @_;
my $code_ref = exists($option_ref->{$opt_id}) ? $code0_ref : $code1_ref;
$code_ref->($attrib_ref, $app, $option_ref, @args);
};
}
# Invokes a system function.
sub _sys_func {
my ($code_ref) = @_;
sub {
my ($attrib_ref, $app, @args) = @_;
local($S) = $attrib_ref->{system};
defined($code_ref) ? $code_ref->(@args) : $S->svn($app, @args);
};
}
# Implements "fcm version".
sub _version {
my ($attrib_ref, $app, $option_ref, @args) = @_;
my $version = $attrib_ref->{system}->util()->version();
$EVENT->(FCM::Context::Event->OUT, "FCM $version\n");
}
# ------------------------------------------------------------------------------
1;
__END__
=head1 NAME
FCM::CLI
=head1 SYNOPSIS
my $cli = FCM::CLI->new();
$cli->(@ARGV);
=head1 DESCRIPTION
An implementation of the FCM command line interface.
=head1 METHODS
=over 4
=item $class->new()
Returns a new instance.
=item $cli->(@ARGV)
Determines the application using the first element in @ARGV, parses the options
and arguments according to the application, and invokes the application.
=back
=head1 DIAGNOSTICS
=head2 FCM::CLI::Exception
This exception is thrown when the CLI fails to invoke an application.
=head1 COPYRIGHT
(C) Crown copyright Met Office. All rights reserved.
=cut
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