NAME

Sah::Schema::perl::pm_filename - A .pm filename, e.g. /path/Foo.pm

VERSION

This document describes version 0.050 of Sah::Schema::perl::pm_filename (from Perl distribution Sah-SchemaBundle-Perl), released on 2024-02-16.

SAH SCHEMA DEFINITION

 [
   "str",
   {
     "summary" => "A .pm filename, e.g. /path/Foo.pm",
     "x.completion" => sub {
       package Sah::Schema::perl::pm_filename;
       use warnings;
       use strict;
       no feature ':all';
       use feature ':5.10';
       require Complete::File;
       require Complete::Module;
       require Complete::Util;
       my(%args) = @_;
       my $word = $args{'word'};
       my @answers;
       push @answers, Complete::File::complete_file('word', $word);
       if ($word =~ m[\A\w*((?:::|/)\w+)*\z]) {
       push @answers, Complete::Module::complete_module('word', $word, 'find_pod', 0);
       }
       Complete::Util::combine_answers(@answers);
     },
     "x.perl.coerce_rules" => ["From_str::convert_perl_pm_to_path"],
   },
 ]

Base type: str

Used completion: CODE(0x55f2611bf898)

SYNOPSIS

Using with Data::Sah

To check data against this schema (requires Data::Sah):

 use Data::Sah qw(gen_validator);
 my $validator = gen_validator("perl::pm_filename*");
 say $validator->($data) ? "valid" : "INVALID!";

The above validator returns a boolean result (true if data is valid, false if otherwise). To return an error message string instead (empty string if data is valid, a non-empty error message otherwise):

 my $validator = gen_validator("perl::pm_filename", {return_type=>'str_errmsg'});
 my $errmsg = $validator->($data);

Often a schema has coercion rule or default value rules, so after validation the validated value will be different from the original. To return the validated (set-as-default, coerced, prefiltered) value:

 my $validator = gen_validator("perl::pm_filename", {return_type=>'str_errmsg+val'});
 my $res = $validator->($data); # [$errmsg, $validated_val]

Data::Sah can also create validator that returns a hash of detailed error message. Data::Sah can even create validator that targets other language, like JavaScript, from the same schema. Other things Data::Sah can do: show source code for validator, generate a validator code with debug comments and/or log statements, generate human text from schema. See its documentation for more details.

Using with Params::Sah

To validate function parameters against this schema (requires Params::Sah):

 use Params::Sah qw(gen_validator);

 sub myfunc {
     my @args = @_;
     state $validator = gen_validator("perl::pm_filename*");
     $validator->(\@args);
     ...
 }

Using with Perinci::CmdLine::Lite

To specify schema in Rinci function metadata and use the metadata with Perinci::CmdLine (Perinci::CmdLine::Lite) to create a CLI:

 # in lib/MyApp.pm
 package
   MyApp;
 our %SPEC;
 $SPEC{myfunc} = {
     v => 1.1,
     summary => 'Routine to do blah ...',
     args => {
         arg1 => {
             summary => 'The blah blah argument',
             schema => ['perl::pm_filename*'],
         },
         ...
     },
 };
 sub myfunc {
     my %args = @_;
     ...
 }
 1;

 # in myapp.pl
 package
   main;
 use Perinci::CmdLine::Any;
 Perinci::CmdLine::Any->new(url=>'/MyApp/myfunc')->run;

 # in command-line
 % ./myapp.pl --help
 myapp - Routine to do blah ...
 ...

 % ./myapp.pl --version

 % ./myapp.pl --arg1 ...

Using on the CLI with validate-with-sah

To validate some data on the CLI, you can use validate-with-sah utility. Specify the schema as the first argument (encoded in Perl syntax) and the data to validate as the second argument (encoded in Perl syntax):

 % validate-with-sah '"perl::pm_filename*"' '"data..."'

validate-with-sah has several options for, e.g. validating multiple data, showing the generated validator code (Perl/JavaScript/etc), or loading schema/data from file. See its manpage for more details.

Using with Type::Tiny

To create a type constraint and type library from a schema (requires Type::Tiny as well as Type::FromSah):

 package My::Types {
     use Type::Library -base;
     use Type::FromSah qw( sah2type );

     __PACKAGE__->add_type(
         sah2type('perl::pm_filename*', name=>'PerlPmFilename')
     );
 }

 use My::Types qw(PerlPmFilename);
 PerlPmFilename->assert_valid($data);

DESCRIPTION

Use this schema if you want to accept a filesystem path containing Perl module. The value of this schema is in the convenience of CLI completion, as well as coercion from module name.

String containing filename of a Perl module. For convenience, when value is in the form of:

 Foo
 Foo.pm
 Foo::Bar
 Foo/Bar
 Foo/Bar.pm

and a matching .pm file is found in @INC, then it will be coerced (converted) into the path of that .pm file, e.g.:

 /home/ujang/perl5/perlbrew/perls/perl-5.24.0/lib/site_perl/5.24.0/Foo/Bar.pm

To prevent such coercion, you can use prefixing path, e.g.:

 ./Foo::Bar
 ../Foo/Bar
 /path/to/Foo/Bar

This schema comes with convenience completion too.

HOMEPAGE

Please visit the project's homepage at https://metacpan.org/release/Sah-SchemaBundle-Perl.

SOURCE

Source repository is at https://github.com/perlancar/perl-Sah-SchemaBundle-Perl.

SEE ALSO

Sah::Schema::perl::filename

Sah::Schema::perl::pod_or_pm_filename

Sah::Schema::perl::pod_filename

AUTHOR

perlancar <perlancar@cpan.org>

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 -l

If 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, Pod::Weaver::PluginBundle::Author::PERLANCAR, and sometimes one or two other Dist::Zilla- and/or Pod::Weaver plugins. Any additional steps required beyond that are considered a bug and can be reported to me.

COPYRIGHT AND LICENSE

This software is copyright (c) 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016 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=Sah-SchemaBundle-Perl

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.

cpanm Sah::SchemaBundle::Perl

perl -MCPAN -e shell
install Sah::SchemaBundle::Perl