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NAME
    App::lcpan - Manage your local CPAN mirror

VERSION
    This document describes version 1.022 of App::lcpan (from Perl
    distribution App-lcpan), released on 2018-02-08.

SYNOPSIS
    See lcpan script.

FUNCTIONS
  authors
    Usage:

     authors(%args) -> [status, msg, result, meta]

    List authors.

    Examples:

    *   List all authors:

         authors();

    *   Find CPAN IDs which start with something:

         authors( query => ["MICHAEL%"]); # -> undef

    This function is not exported by default, but exportable.

    Arguments ('*' denotes required arguments):

    *   cpan => *dirname*

        Location of your local CPAN mirror, e.g. /path/to/cpan.

        Defaults to "~/cpan".

    *   detail => *bool*

    *   index_name => *filename* (default: "index.db")

        Filename of index.

    *   or => *bool*

        When there are more than one query, perform OR instead of AND logic.

    *   query => *array[str]*

        Search query.

    *   query_type => *str* (default: "any")

    Returns an enveloped result (an array).

    First element (status) is an integer containing HTTP status code (200
    means OK, 4xx caller error, 5xx function error). Second element (msg) is
    a string containing error message, or 'OK' if status is 200. Third
    element (result) is optional, the actual result. Fourth element (meta)
    is called result metadata and is optional, a hash that contains extra
    information.

    Return value: (any)

    By default will return an array of CPAN ID's. If you set "detail" to
    true, will return array of records.

  deps
    Usage:

     deps(%args) -> [status, msg, result, meta]

    List dependencies.

    By default only runtime requires are displayed. To see prereqs for other
    phases (e.g. configure, or build, or ALL) or for other relationships
    (e.g. recommends, or ALL), use the "--phase" and "--rel" options.

    Note that dependencies information are taken from "META.json" or
    "META.yml" files. Not all releases (especially older ones) contain them.
    lcpan (like MetaCPAN) does not extract information from "Makefile.PL" or
    "Build.PL" because that requires running (untrusted) code.

    Also, some releases specify dynamic config, so there might actually be
    more dependencies.

    This function is not exported by default, but exportable.

    Arguments ('*' denotes required arguments):

    *   cpan => *dirname*

        Location of your local CPAN mirror, e.g. /path/to/cpan.

        Defaults to "~/cpan".

    *   flatten => *bool*

        Instead of showing tree-like information, flatten it.

        When recursing, the default is to show the final result in a
        tree-like table, i.e. indented according to levels, e.g.:

         % lcpan deps -R MyModule
         | module            | author  | version |
         |-------------------|---------|---------|
         | Foo               | AUTHOR1 | 0.01    |
         |   Bar             | AUTHOR2 | 0.23    |
         |   Baz             | AUTHOR3 | 1.15    |
         | Qux               | AUTHOR2 | 0       |

        To be brief, if "Qux" happens to also depends on "Bar", it will not
        be shown in the result. Thus we don't know the actual "Bar" version
        that is needed by the dependency tree of "MyModule". For example, if
        "Qux" happens to depends on "Bar" version 0.45 then "MyModule"
        indirectly requires "Bar" 0.45.

        To list all the direct and indirect dependencies on a single flat
        list, with versions already resolved to the largest version
        required, use the "flatten" option:

         % lcpan deps -R --flatten MyModule
         | module            | author  | version |
         |-------------------|---------|---------|
         | Foo               | AUTHOR1 | 0.01    |
         | Bar               | AUTHOR2 | 0.45    |
         | Baz               | AUTHOR3 | 1.15    |
         | Qux               | AUTHOR2 | 0       |

        Note that "Bar"'s required version is already 0.45 in the above
        example.

    *   include_core => *bool* (default: 1)

        Include core modules.

    *   include_noncore => *bool* (default: 1)

        Include non-core modules.

    *   index_name => *filename* (default: "index.db")

        Filename of index.

    *   level => *int* (default: 1)

        Recurse for a number of levels (-1 means unlimited).

    *   modules* => *array[perl::modname]*

    *   perl_version => *str* (default: "v5.26.0")

        Set base Perl version for determining core modules.

    *   phase => *str* (default: "runtime")

    *   rel => *str* (default: "requires")

    *   with_xs_or_pp => *bool*

        Check each dependency as XS/PP.

    Returns an enveloped result (an array).

    First element (status) is an integer containing HTTP status code (200
    means OK, 4xx caller error, 5xx function error). Second element (msg) is
    a string containing error message, or 'OK' if status is 200. Third
    element (result) is optional, the actual result. Fourth element (meta)
    is called result metadata and is optional, a hash that contains extra
    information.

    Return value: (any)

  dists
    Usage:

     dists(%args) -> [status, msg, result, meta]

    List distributions.

    Examples:

    *   List all distributions:

         dists( cpan => "/cpan");

    *   List all distributions (latest version only):

         dists( cpan => "/cpan", latest => 1);

    *   Grep by distribution name, return detailed record:

         dists( query => ["data-table"], cpan => "/cpan");

    This function is not exported by default, but exportable.

    Arguments ('*' denotes required arguments):

    *   author => *str*

        Filter by author.

    *   cpan => *dirname*

        Location of your local CPAN mirror, e.g. /path/to/cpan.

        Defaults to "~/cpan".

    *   detail => *bool*

    *   has_buildpl => *bool*

    *   has_makefilepl => *bool*

    *   has_metajson => *bool*

    *   has_metayml => *bool*

    *   has_multiple_rels => *bool*

    *   index_name => *filename* (default: "index.db")

        Filename of index.

    *   latest => *bool*

    *   or => *bool*

        When there are more than one query, perform OR instead of AND logic.

    *   query => *array[str]*

        Search query.

    *   query_type => *str* (default: "any")

    *   rel_mtime_newer_than => *date*

    *   sort => *array[str]* (default: ["dist"])

        Sort the result.

    Returns an enveloped result (an array).

    First element (status) is an integer containing HTTP status code (200
    means OK, 4xx caller error, 5xx function error). Second element (msg) is
    a string containing error message, or 'OK' if status is 200. Third
    element (result) is optional, the actual result. Fourth element (meta)
    is called result metadata and is optional, a hash that contains extra
    information.

    Return value: (any)

    By default will return an array of distribution names. If you set
    "detail" to true, will return array of records.

  modules
    Usage:

     modules(%args) -> [status, msg, result, meta]

    List modules/packages.

    This function is not exported by default, but exportable.

    Arguments ('*' denotes required arguments):

    *   author => *str*

        Filter by author.

    *   cpan => *dirname*

        Location of your local CPAN mirror, e.g. /path/to/cpan.

        Defaults to "~/cpan".

    *   detail => *bool*

    *   dist => *perl::distname*

        Filter by distribution.

    *   include_core => *bool* (default: 1)

        Include core modules.

    *   include_noncore => *bool* (default: 1)

        Include non-core modules.

    *   index_name => *filename* (default: "index.db")

        Filename of index.

    *   latest => *bool*

    *   namespaces => *array[str]*

        Select modules belonging to certain namespace(s).

    *   or => *bool*

        When there are more than one query, perform OR instead of AND logic.

    *   perl_version => *str* (default: "v5.26.0")

        Set base Perl version for determining core modules.

    *   query => *array[str]*

        Search query.

    *   query_type => *str* (default: "any")

    *   sort => *array[str]* (default: ["module"])

        Sort the result.

    Returns an enveloped result (an array).

    First element (status) is an integer containing HTTP status code (200
    means OK, 4xx caller error, 5xx function error). Second element (msg) is
    a string containing error message, or 'OK' if status is 200. Third
    element (result) is optional, the actual result. Fourth element (meta)
    is called result metadata and is optional, a hash that contains extra
    information.

    Return value: (any)

    By default will return an array of package names. If you set "detail" to
    true, will return array of records.

  namespaces
    Usage:

     namespaces(%args) -> [status, msg, result, meta]

    List namespaces.

    This function is not exported.

    Arguments ('*' denotes required arguments):

    *   cpan => *dirname*

        Location of your local CPAN mirror, e.g. /path/to/cpan.

        Defaults to "~/cpan".

    *   detail => *bool*

    *   from_level => *int*

    *   index_name => *filename* (default: "index.db")

        Filename of index.

    *   level => *int*

    *   or => *bool*

        When there are more than one query, perform OR instead of AND logic.

    *   query => *array[str]*

        Search query.

    *   query_type => *str* (default: "any")

    *   sort => *str* (default: "name")

    *   to_level => *int*

    Returns an enveloped result (an array).

    First element (status) is an integer containing HTTP status code (200
    means OK, 4xx caller error, 5xx function error). Second element (msg) is
    a string containing error message, or 'OK' if status is 200. Third
    element (result) is optional, the actual result. Fourth element (meta)
    is called result metadata and is optional, a hash that contains extra
    information.

    Return value: (any)

  packages
    Usage:

     packages(%args) -> [status, msg, result, meta]

    List modules/packages.

    This function is not exported.

    Arguments ('*' denotes required arguments):

    *   author => *str*

        Filter by author.

    *   cpan => *dirname*

        Location of your local CPAN mirror, e.g. /path/to/cpan.

        Defaults to "~/cpan".

    *   detail => *bool*

    *   dist => *perl::distname*

        Filter by distribution.

    *   include_core => *bool* (default: 1)

        Include core modules.

    *   include_noncore => *bool* (default: 1)

        Include non-core modules.

    *   index_name => *filename* (default: "index.db")

        Filename of index.

    *   latest => *bool*

    *   namespaces => *array[str]*

        Select modules belonging to certain namespace(s).

    *   or => *bool*

        When there are more than one query, perform OR instead of AND logic.

    *   perl_version => *str* (default: "v5.26.0")

        Set base Perl version for determining core modules.

    *   query => *array[str]*

        Search query.

    *   query_type => *str* (default: "any")

    *   sort => *array[str]* (default: ["module"])

        Sort the result.

    Returns an enveloped result (an array).

    First element (status) is an integer containing HTTP status code (200
    means OK, 4xx caller error, 5xx function error). Second element (msg) is
    a string containing error message, or 'OK' if status is 200. Third
    element (result) is optional, the actual result. Fourth element (meta)
    is called result metadata and is optional, a hash that contains extra
    information.

    Return value: (any)

    By default will return an array of package names. If you set "detail" to
    true, will return array of records.

  rdeps
    Usage:

     rdeps(%args) -> [status, msg, result, meta]

    List reverse dependencies.

    This function is not exported by default, but exportable.

    Arguments ('*' denotes required arguments):

    *   authors => *array[str]*

        Filter certain author.

        This can be used to select certain author(s).

    *   authors_arent => *array[str]*

        Filter out certain author.

        This can be used to filter out certain author(s). For example if you
        want to know whether a module is being used by another CPAN author
        instead of just herself.

    *   cpan => *dirname*

        Location of your local CPAN mirror, e.g. /path/to/cpan.

        Defaults to "~/cpan".

    *   index_name => *filename* (default: "index.db")

        Filename of index.

    *   level => *int* (default: 1)

        Recurse for a number of levels (-1 means unlimited).

    *   modules* => *array[perl::modname]*

    *   phase => *str* (default: "ALL")

    *   rel => *str* (default: "ALL")

    Returns an enveloped result (an array).

    First element (status) is an integer containing HTTP status code (200
    means OK, 4xx caller error, 5xx function error). Second element (msg) is
    a string containing error message, or 'OK' if status is 200. Third
    element (result) is optional, the actual result. Fourth element (meta)
    is called result metadata and is optional, a hash that contains extra
    information.

    Return value: (any)

  releases
    Usage:

     releases(%args) -> [status, msg, result, meta]

    List releases/tarballs.

    The status field is the processing status of the file/release by lcpan.
    "ok" means file has been extracted and the meta files parsed, "nofile"
    means file is not found in mirror (possibly because the mirroring
    process excludes the file e.g. due to file size too large), "nometa"
    means file does not contain META.{yml,json}, "unsupported" means file
    archive format is not supported (e.g. rar), "err" means some other error
    in processing file.

    This function is not exported by default, but exportable.

    Arguments ('*' denotes required arguments):

    *   author => *str*

        Filter by author.

    *   cpan => *dirname*

        Location of your local CPAN mirror, e.g. /path/to/cpan.

        Defaults to "~/cpan".

    *   detail => *bool*

    *   full_path => *bool*

    *   has_buildpl => *bool*

    *   has_makefilepl => *bool*

    *   has_metajson => *bool*

    *   has_metayml => *bool*

    *   index_name => *filename* (default: "index.db")

        Filename of index.

    *   latest => *bool*

    *   no_path => *bool*

    *   or => *bool*

        When there are more than one query, perform OR instead of AND logic.

    *   query => *array[str]*

        Search query.

    *   query_type => *str* (default: "any")

    *   sort => *array[str]* (default: ["name"])

    Returns an enveloped result (an array).

    First element (status) is an integer containing HTTP status code (200
    means OK, 4xx caller error, 5xx function error). Second element (msg) is
    a string containing error message, or 'OK' if status is 200. Third
    element (result) is optional, the actual result. Fourth element (meta)
    is called result metadata and is optional, a hash that contains extra
    information.

    Return value: (any)

  reset
    Usage:

     reset(%args) -> [status, msg, result, meta]

    Reset (empty) the database index.

    This function is not exported.

    Arguments ('*' denotes required arguments):

    *   cpan => *dirname*

        Location of your local CPAN mirror, e.g. /path/to/cpan.

        Defaults to "~/cpan".

    *   index_name => *filename* (default: "index.db")

        Filename of index.

    Returns an enveloped result (an array).

    First element (status) is an integer containing HTTP status code (200
    means OK, 4xx caller error, 5xx function error). Second element (msg) is
    a string containing error message, or 'OK' if status is 200. Third
    element (result) is optional, the actual result. Fourth element (meta)
    is called result metadata and is optional, a hash that contains extra
    information.

    Return value: (any)

  stats
    Usage:

     stats(%args) -> [status, msg, result, meta]

    Statistics of your local CPAN mirror.

    This function is not exported.

    Arguments ('*' denotes required arguments):

    *   cpan => *dirname*

        Location of your local CPAN mirror, e.g. /path/to/cpan.

        Defaults to "~/cpan".

    *   index_name => *filename* (default: "index.db")

        Filename of index.

    Returns an enveloped result (an array).

    First element (status) is an integer containing HTTP status code (200
    means OK, 4xx caller error, 5xx function error). Second element (msg) is
    a string containing error message, or 'OK' if status is 200. Third
    element (result) is optional, the actual result. Fourth element (meta)
    is called result metadata and is optional, a hash that contains extra
    information.

    Return value: (any)

  update
    Usage:

     update(%args) -> [status, msg, result, meta]

    Create/update local CPAN mirror.

    This subcommand first create/update the mirror files by downloading from
    a remote CPAN mirror, then update the index.

    This function is not exported by default, but exportable.

    Arguments ('*' denotes required arguments):

    *   cpan => *dirname*

        Location of your local CPAN mirror, e.g. /path/to/cpan.

        Defaults to "~/cpan".

    *   exclude_author => *array[str]*

        Exclude files from certain author(s).

    *   force_update_index => *bool*

        Update the index even though there is no change in files.

    *   include_author => *array[str]*

        Only include files from certain author(s).

    *   index_name => *filename* (default: "index.db")

        Filename of index.

    *   max_file_size => *int*

        If set, skip downloading files larger than this.

    *   remote_url => *str*

        Select CPAN mirror to download from.

    *   skip_file_indexing_pass_1 => *bool*

    *   skip_file_indexing_pass_2 => *bool*

    *   skip_file_indexing_pass_3 => *bool*

    *   skip_index_files => *array[str]*

        Skip one or more files from being indexed.

    *   skip_sub_indexing => *bool* (default: 1)

        Since sub indexing is still experimental, it is not enabled by
        default. To enable it, pass the "--no-skip-sub-indexing" option.

    *   update_files => *bool* (default: 1)

        Update the files.

    *   update_index => *bool* (default: 1)

        Update the index.

    Returns an enveloped result (an array).

    First element (status) is an integer containing HTTP status code (200
    means OK, 4xx caller error, 5xx function error). Second element (msg) is
    a string containing error message, or 'OK' if status is 200. Third
    element (result) is optional, the actual result. Fourth element (meta)
    is called result metadata and is optional, a hash that contains extra
    information.

    Return value: (any)

HISTORY
    This application began as CPAN::SQLite::CPANMeta, an extension of
    CPAN::SQLite. "CPAN::SQLite" parses "02packages.details.txt.gz" and
    "01mailrc.txt.gz" and puts the parse result into a SQLite database.
    "CPAN::SQLite::CPANMeta" parses the "META.json"/"META.yml" files in
    individual release files and adds it to the SQLite database.

    In order to simplify things for the users (one-step indexing) and get
    more freedom in database schema, "lcpan" skips using "CPAN::SQLite" and
    creates its own SQLite database. It also parses
    "02packages.details.txt.gz" but does not parse distribution names from
    it but instead uses "META.json" and "META.yml" files extracted from the
    release files. If no "META.*" files exist, then it will use the module
    name.

HOMEPAGE
    Please visit the project's homepage at
    <https://metacpan.org/release/App-lcpan>.

SOURCE
    Source repository is at <https://github.com/perlancar/perl-App-lcpan>.

BUGS
    Please report any bugs or feature requests on the bugtracker website
    <https://rt.cpan.org/Public/Dist/Display.html?Name=App-lcpan>

    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.

AUTHOR
    perlancar <perlancar@cpan.org>

COPYRIGHT AND LICENSE
    This software is copyright (c) 2018, 2017, 2016, 2015 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.