App::CPANChangesUtils - Parse CPAN Changes file
This document describes version 0.077 of App::CPANChangesUtils (from Perl distribution App-CPANChangesUtils), released on 2022-06-13.
This distribution provides some CLI utilities related to CPAN Changes
Usage:
format_cpan_changes(%args) -> [$status_code, $reason, $payload, \%result_meta]
Format CPAN Changes.
This utility is a simple wrapper to CPAN::Changes. It will parse your CPAN Changes file into data structure, then use serialize() to format it back to text form.
serialize()
This function is not exported.
Arguments ('*' denotes required arguments):
class => perl::modname (default: "CPAN::Changes")
file => filename
If not specified, will look for file called Changes/ChangeLog in current directory.
Returns an enveloped result (an array).
First element ($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 ($status_code is not 2xx). Fourth element (%result_meta) is called result metadata and is optional, a hash that contains extra information, much like how HTTP response headers provide additional metadata.
Return value: (any)
parse_cpan_changes(%args) -> [$status_code, $reason, $payload, \%result_meta]
Parse CPAN Changes file.
Examples:
Parse with default settings:
parse_cpan_changes();
Result:
[ 200, "OK", { months => { Apr => 4, Aug => 8, Dec => 12, Feb => 2, Jan => 1, Jul => 7, Jun => 6, Mar => 3, May => 5, Nov => 11, Oct => 10, Sep => 9, }, preamble => "", releases => { "0.01" => { _parsed_date => "2013-08-05", changes => { "" => { changes => ["First version."], name => "" } }, date => "2013-08-05", metadata => { "released-by" => "SHARYANTO" }, note => "Released-By: SHARYANTO", version => 0.01, }, "0.02" => { _parsed_date => "2013-08-06", changes => { "" => { changes => ["No functional changes. Add missing dep [CT]."], name => "", }, }, date => "2013-08-06", metadata => { "released-by" => "SHARYANTO" }, note => "Released-By: SHARYANTO", version => 0.02, }, "0.03" => { _parsed_date => "2013-11-01", changes => { "" => { changes => [ "No functional changes. Mention some other modules and the rationale for the script.", ], name => "", }, }, date => "2013-11-01", metadata => { "released-by" => "SHARYANTO" }, note => "Released-By: SHARYANTO", version => 0.03, }, "0.04" => { _parsed_date => "2014-07-22", changes => { "" => { changes => [ "No functional changes.", "Switch CLI scripts from using Perinci::CmdLine to Perinci::CmdLine::Any to reduce size of dependencies.", ], name => "", }, }, date => "2014-07-22", metadata => { "released-by" => "SHARYANTO" }, note => "Released-By: SHARYANTO", version => 0.04, }, "0.05" => { _parsed_date => "2015-09-03", changes => { "" => { changes => [ "No functional changes.", "[dist] Move spec prereqs from RuntimeRequires to DevelopRecommends to reduce deps but still allow indicating spec requirement.", ], name => "", }, }, date => "2015-09-03", metadata => { "released-by" => "PERLANCAR" }, note => "Released-By: PERLANCAR", version => 0.05, }, "0.06" => { _parsed_date => "2016-01-18", changes => { "" => { changes => [ "No functional changes.", "[build] Rebuild to fix POD section ordering.", ], name => "", }, }, date => "2016-01-18", metadata => { "released-by" => "PERLANCAR" }, note => "Released-By: PERLANCAR", version => 0.06, }, "0.070" => { _parsed_date => "2019-07-03", changes => { "" => { changes => ["Add option --class to customize parser class."], name => "", }, }, date => "2019-07-03", metadata => { "released-by" => "PERLANCAR", "urgency" => "medium" }, note => "Released-By: PERLANCAR; Urgency: medium", version => "0.070", }, "0.071" => { _parsed_date => "2020-10-06", changes => { "" => { changes => ["Add option --no-unbless."], name => "" } }, date => "2020-10-06", metadata => { "released-by" => "PERLANCAR", "urgency" => "medium" }, note => "Released-By: PERLANCAR; Urgency: medium", version => 0.071, }, "0.072" => { _parsed_date => "2021-05-25", changes => { "" => { changes => [ "[build] Rebuild to update Sah coercion module names (old Sah coercion modules have been purged from CPAN).", ], name => "", }, }, date => "2021-05-25", metadata => { "released-by" => "PERLANCAR", "urgency" => "high" }, note => "Released-By: PERLANCAR; Urgency: high", version => 0.072, }, "0.073" => { _parsed_date => "2021-10-17", changes => { "" => { changes => [ "Rename module/dist App-ParseCPANChanges -> App-CPANChangesUtils. - Add CLI format-cpan-changes.", ], name => "", }, }, date => "2021-10-17", metadata => { "released-by" => "PERLANCAR", "urgency" => "medium" }, note => "Released-By: PERLANCAR; Urgency: medium", version => 0.073, }, "0.075" => { _parsed_date => "2022-06-10", changes => { "" => { changes => [ "[utility parse-cpan-changes] Add option parse_release_metadata (defaults to true) to parse 'key: value' metadata in the release note.", ], name => "", }, }, date => "2022-06-10", metadata => { "released-by" => "PERLANCAR", "urgency" => "medium" }, note => "Released-By: PERLANCAR; Urgency: medium", version => 0.075, }, "0.076" => { _parsed_date => "2022-06-10", changes => { "" => { changes => ["No functional changes.", "[ux] Add an example."], name => "", }, }, date => "2022-06-10", metadata => { "released-by" => "PERLANCAR", "urgency" => "low" }, note => "Released-By: PERLANCAR; Urgency: low", version => 0.076, }, "0.077" => { _parsed_date => "2022-06-13", changes => { "" => { changes => [ "No functional changes.", "[ux] Show content of Changes file in example.", ], name => "", }, }, date => "2022-06-13", metadata => { "released-by" => "PERLANCAR", "urgency" => "low" }, note => "Released-By: PERLANCAR; Urgency: low", version => 0.077, }, }, }, {}, ]
Content of Changes file:
Changes
0.076 2022-06-10 Released-By: PERLANCAR; Urgency: low - No functional changes. - [ux] Add an example. 0.075 2022-06-10 Released-By: PERLANCAR; Urgency: medium - [utility parse-cpan-changes] Add option parse_release_metadata (defaults to true) to parse 'key: value' metadata in the release note. 0.073 2021-10-17 Released-By: PERLANCAR; Urgency: medium - Rename module/dist App-ParseCPANChanges -> App-CPANChangesUtils. - Add CLI format-cpan-changes. 0.072 2021-05-25 Released-By: PERLANCAR; Urgency: high - [build] Rebuild to update Sah coercion module names (old Sah coercion modules have been purged from CPAN). 0.071 2020-10-06 Released-By: PERLANCAR; Urgency: medium - Add option --no-unbless. 0.070 2019-07-03 Released-By: PERLANCAR; Urgency: medium - Add option --class to customize parser class. 0.06 2016-01-18 Released-By: PERLANCAR - No functional changes. - [build] Rebuild to fix POD section ordering. 0.05 2015-09-03 Released-By: PERLANCAR - No functional changes. - [dist] Move spec prereqs from RuntimeRequires to DevelopRecommends to reduce deps but still allow indicating spec requirement. 0.04 2014-07-22 Released-By: SHARYANTO - No functional changes. - Switch CLI scripts from using Perinci::CmdLine to Perinci::CmdLine::Any to reduce size of dependencies. 0.03 2013-11-01 Released-By: SHARYANTO - No functional changes. Mention some other modules and the rationale for the script. 0.02 2013-08-06 Released-By: SHARYANTO - No functional changes. Add missing dep [CT]. 0.01 2013-08-05 Released-By: SHARYANTO - First version.
This utility is a simple wrapper for CPAN::Changes.
parse_release_metadata => bool (default: 1)
Whether to parse release metadata in release note.
If set to true (the default), the utility will attempt to parse release metadata in the release note. The release note is the text after the version and date in the first line of a release entry:
0.001 - 2022-06-10 THIS IS THE RELEASE NOTE AND CAN BE ANY TEXT
One convention I use is for the release note to be semicolon-separated of metadata entries, where each metadata is in the form of HTTP-header-like "Name: Value" text where Name is dash-separated words and Value is any text that does not contain newline or semicolon. Example:
0.001 - 2022-06-10 Urgency: high; Backward-Incompatible: yes
Note that Debian changelog also supports "key=value" in the release line.
This option, when enabled, will first check if the release note is indeed in the form of semicolon-separated metadata. If yes, will create a key called metadata in the release result structure containing a hash of metadata:
metadata
{ "urgency" => "high", "backward-incompatible" => "yes" }
Note that the metadata names are converted to lowercase.
unbless => bool (default: 1)
Whether to return Perl objects as unblessed refs.
If you set this to false, you'll need to use an output format that can handle serializing Perl objects, e.g. on the CLI using --format=perl.
--format=perl
Please visit the project's homepage at https://metacpan.org/release/App-CPANChangesUtils.
Source repository is at https://github.com/perlancar/perl-App-CPANChangesUtils.
CPAN::Changes
CPAN::Changes::Spec
An alternative way to manage your Changes using INI master format: Module::Metadata::Changes.
Dist::Zilla plugin to check your Changes before build: Dist::Zilla::Plugin::CheckChangesHasContent, Dist::Zilla::Plugin::CheckChangeLog.
perlancar <perlancar@cpan.org>
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, 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.
This software is copyright (c) 2022, 2021 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.
Please report any bugs or feature requests on the bugtracker website https://rt.cpan.org/Public/Dist/Display.html?Name=App-CPANChangesUtils
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.
To install App::CPANChangesUtils, copy and paste the appropriate command in to your terminal.
cpanm
cpanm App::CPANChangesUtils
CPAN shell
perl -MCPAN -e shell install App::CPANChangesUtils
For more information on module installation, please visit the detailed CPAN module installation guide.