NAME
Perinci::CmdLine::Lite - A Rinci/Riap-based command-line application framework
VERSION
This document describes version 1.915 of Perinci::CmdLine::Lite (from Perl distribution Perinci-CmdLine-Lite), released on 2021-12-10.
SYNOPSIS
In gen-random-num script:
use Perinci::CmdLine::Lite;
our %SPEC;
$SPEC{gen_random_num} = {
v => 1.1,
summary => 'Generate some random numbers',
args => {
count => {
summary => 'How many numbers to generate',
schema => ['int*' => min=>0],
default => 1,
cmdline_aliases=>{n=>{}},
req => 1,
pos => 0,
},
min => {
summary => 'Lower limit of random number',
schema => 'float*',
default => 0,
},
max => {
summary => 'Upper limit of random number',
schema => 'float*',
default => 1,
},
},
result_naked => 1,
};
sub gen_random_num {
my %args = @_;
my @res;
for (1..$args{count}) {
push @res, $args{min} + rand()*($args{max}-$args{min});
}
\@res;
}
Perinci::CmdLine::Lite->new(url => '/main/gen_random_num')->run;Run your script:
% ./gen-random-num
0.999473691060306
% ./gen-random-num --min 1 --max 10 5
1.27390166158969
1.69077475473679
8.97748327778684
5.86943773494068
8.34341298182493JSON output support out of the box:
% ./gen-random-num -n3 --json
[200,"OK (envelope added by Perinci::Access::Lite)",[0.257073684902029,0.393782991540746,0.848740540017513],{}]Automatic help message:
% ./gen-random-num -h
gen-random-num - Generate some random numbers
Usage:
gen-random-num --help (or -h, -?)
gen-random-num --version (or -v)
gen-random-num [options] [count]
Options:
--config-path=s Set path to configuration file
--config-profile=s Set configuration profile to use
--count=i, -n How many numbers to generate (=arg[0]) [1]
--format=s Choose output format, e.g. json, text [undef]
--help, -h, -? Display this help message
--json Set output format to json
--max=f Upper limit of random number [1]
--min=f Lower limit of random number [0]
--naked-res When outputing as JSON, strip result envelope [0]
--no-config Do not use any configuration file
--version, -vAutomatic configuration file support:
% cat ~/gen-random-num.conf
count=5
max=0.01
% ./gen-random-num
0.00105268954838724
0.00701443611501844
0.0021247476506154
0.00813872824513005
0.00752832346491306Automatic tab completion support:
% complete -C gen-random-num gen-random-num
% gen-random-num --mi<tab>See Perinci::CmdLine::Manual for details on other available features (subcommands, automatic formatting of data structures, automatic schema validation, dry-run mode, automatic POD generation, remote function support, automatic CLI generation, automatic --version, automatic HTTP API, undo/transactions, configurable output format, logging, progress bar, colors/Unicode, and more).
DESCRIPTION
Perinci::CmdLine is a command-line application framework. It allows you to create full-featured CLI applications easily and quickly.
See Perinci::CmdLine::Manual for more details.
There is also a blog post series on Perinci::CmdLine tutorial: https://perlancar.wordpress.com/category/pericmd-tut/
Perinci::CmdLine::Lite is the default backend implementation. Another implementation is the heavier Perinci::CmdLine::Classic which has a couple of more features not yet incorporated into ::Lite, e.g. transactions.
You normally should use Perinci::CmdLine::Any instead to be able to switch backend on the fly.
REQUEST KEYS
All those supported by Perinci::CmdLine::Base.
RESULT METADATA
All those supported by Perinci::CmdLine::Base, plus:
x.hint.result_binary => bool
If set to true, then when formatting to text formats, this class won't print any newline to keep the data being printed unmodified.
ATTRIBUTES
All the attributes of Perinci::CmdLine::Base, plus:
validate_args => bool (default: 1)
Validate arguments using schema from metadata.
METHODS
All the methods of Perinci::CmdLine::Base, plus:
ENVIRONMENT
All the environment variables that Perinci::CmdLine::Base supports, plus:
DEBUG
Set log level to 'debug'.
VERBOSE
Set log level to 'info'.
QUIET
Set log level to 'error'.
TRACE
Set log level to 'trace'.
LOG_LEVEL
Set log level.
PROGRESS => bool
Explicitly turn the progress bar on/off.
FORMAT_PRETTY_TABLE_COLUMN_ORDERS => array (json)
Set the default of table_column_orders in format_options in result metadata, similar to what's implemented in Perinci::Result::Format and Data::Format::Pretty::Console.
HOMEPAGE
Please visit the project's homepage at https://metacpan.org/release/Perinci-CmdLine-Lite.
SOURCE
Source repository is at https://github.com/perlancar/perl-Perinci-CmdLine-Lite.
SEE ALSO
AUTHOR
perlancar <perlancar@cpan.org>
CONTRIBUTORS
Paul Cochrane <paul@liekut.de>
Steven Haryanto <stevenharyanto@gmail.com>
CONTRIBUTING
To contribute, you can send patches by email/via RT, or send pull requests on GitHub.
Most of the time, you don't need to build the distribution yourself. You can simply modify the code, then test via:
% prove -lIf you want to build the distribution (e.g. to try to install it locally on your system), you can install Dist::Zilla, Dist::Zilla::PluginBundle::Author::PERLANCAR, and sometimes one or two other Dist::Zilla plugin and/or Pod::Weaver::Plugin. Any additional steps required beyond that are considered a bug and can be reported to me.
COPYRIGHT AND LICENSE
This software is copyright (c) 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014 by perlancar <perlancar@cpan.org>.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.
BUGS
Please report any bugs or feature requests on the bugtracker website https://rt.cpan.org/Public/Dist/Display.html?Name=Perinci-CmdLine-Lite
When submitting a bug or request, please include a test-file or a patch to an existing test-file that illustrates the bug or desired feature.