NAME

Setup::File::TextFragment - Insert/delete text fragment in a file (with undo support)

VERSION

This document describes version 0.070 of Setup::File::TextFragment (from Perl distribution Setup-File-TextFragment), released on 2021-08-02.

CONTRIBUTOR

Steven Haryanto <sharyanto@cpan.org>

FUNCTIONS

setup_text_fragment

Usage:

 setup_text_fragment(%args) -> [$status_code, $reason, $payload, \%result_meta]

Insert/delete text fragment in a file (with undo support).

On do, will insert fragment to file (or delete, if should_exist is set to false). On undo, will restore old file.

Unfixable state: file does not exist or not a regular file (directory and symlink included).

Fixed state: file exists, fragment already exists and with the same content (if should_exist is true) or fragment already does not exist (if should_exist is false).

Fixable state: file exists, fragment doesn't exist or payload is not the same (if should_exist is true) or fragment still exists (if should_exist is false).

This function is not exported by default, but exportable.

This function is idempotent (repeated invocations with same arguments has the same effect as single invocation). This function supports transactions.

Arguments ('*' denotes required arguments):

  • attrs => hash

    Fragment attributes (only for inserting new fragment), passed to Text::Fragment.

  • comment_style => bool

    Will be passed to Text::Fragment.

  • good_pattern => str

    Will be passed to Text::Fragment.

  • id* => str

    Fragment ID.

  • label => str

    Will be passed to Text::Fragment.

  • path* => str

    Path to file.

  • payload* => str

    Fragment content.

  • replace_pattern => str

    Will be passed to Text::Fragment.

  • should_exist => bool (default: 1)

    Whether fragment should exist.

  • top_style => bool

    Will be passed to Text::Fragment.

Special arguments:

  • -tx_action => str

    For more information on transaction, see L<Rinci::Transaction>.

  • -tx_action_id => str

    For more information on transaction, see L<Rinci::Transaction>.

  • -tx_recovery => str

    For more information on transaction, see L<Rinci::Transaction>.

  • -tx_rollback => str

    For more information on transaction, see L<Rinci::Transaction>.

  • -tx_v => str

    For more information on transaction, see L<Rinci::Transaction>.

Returns an enveloped result (an array).

First element ($status_code) is an integer containing HTTP-like status code (200 means OK, 4xx caller error, 5xx function error). Second element ($reason) is a string containing error message, or something like "OK" if status is 200. Third element ($payload) is the actual result, but usually not present when enveloped result is an error response ($status_code is not 2xx). Fourth element (%result_meta) is called result metadata and is optional, a hash that contains extra information, much like how HTTP response headers provide additional metadata.

Return value: (any)

HOMEPAGE

Please visit the project's homepage at https://metacpan.org/release/Setup-File-TextFragment.

SOURCE

Source repository is at https://github.com/perlancar/perl-Setup-File-TextFragment.

BUGS

Please report any bugs or feature requests on the bugtracker website https://rt.cpan.org/Public/Dist/Display.html?Name=Setup-File-TextFragment

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.

SEE ALSO

A more general version of this: Setup::File::Edit.

A variation that adds/removes line to file: Setup::File::Line.

Backend for this module: Text::Fragment

The Setup framework: Setup

AUTHOR

perlancar <perlancar@cpan.org>

COPYRIGHT AND LICENSE

This software is copyright (c) 2021, 2017, 2015, 2014, 2013, 2012 by 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.