NAME

Sah::Schemas::Unix - Various Sah schemas for Unix

VERSION

This document describes version 0.021 of Sah::Schemas::Unix (from Perl distribution Sah-Schemas-Unix), released on 2022-09-08.

SAH SCHEMAS

The following schemas are included in this distribution:

• unix::dirname

  Directory name (with optional path) on a Unix system.

  This is just a convenient alias for dirname::unix.

• unix::filename

  File name (with optional path) on a Unix system.

  This is just a convenient alias for filename::unix.

• unix::gid

  Group identifier (GID).

  Note that this schema does not check whether the GID exists (has record in the user database e.g. /etc/group). To do that, use the unix::gid::exists schema.

• unix::gid::exists

  Group identifier (GID) that has to exist on the system.

  Existing means having a group name associated with this GID, i.e. getgrgid returns a record.

  Support coercion from an existing group name.

• unix::groupname

  Unix group name.

  The checking follows POSIX rules: does not begin with a hyphen and only contains [A-Za-z0-9._-].

  The above rule allows integers like 1234, which can be confused with GID, so this schema disallows pure integers.

  The maximum length is 32 following libc6's limit.

  Note that this schema does not check whether the group name exists (has record in the user database e.g. /etc/group). To do that, use the unix::groupname::exists schema.

• unix::groupname::exists

  Unix group name that must exist on the system.

  Support coercion from GID.

• unix::pathname

  Path name (filename or dirname) on a Unix system.

  This is just a convenient alias for pathname::unix.

• unix::pid

  Process identifier (PID).

• unix::signal

  Unix signal name (e.g. TERM or KILL) or number (9 or 15).

• unix::uid

  User identifier (UID).

  Note that this schema does not check whether the UID exists (has record in the user database e.g. /etc/passwd). To do that, use the unix::uid::exists schema.

• unix::uid::exists

  User identifier (UID) that has to exist (has associated username) on the system.

  Existing means having a user name associated with this UID, i.e. getpwuid returns a record.

  Support coercion from an existing user name.

• unix::username

  Unix account name.

  The checking follows POSIX rules: does not begin with a hyphen and only contains [A-Za-z0-9._-].

  The above rule allows integers like 1234, which can be confused with UID, so this schema disallows pure integers.

  The maximum length is 32 following libc6's limit.

  Note that this schema does not check whether the user name exists (has record in the user database e.g. /etc/group). To do that, use the unix::username::exists schema.

• unix::username::exists

  Unix user name that must exist on the system.

  Support coercion from UID.

HOMEPAGE

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

SOURCE

Source repository is at https://github.com/perlancar/perl-Sah-Schemas-Unix.

SEE ALSO

Sah - schema specification

Data::Sah - Perl implementation of Sah

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) 2022, 2020, 2019 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-Schemas-Unix

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.