NAME App::tracepm - Trace dependencies of your Perl script VERSION This document describes version 0.230 of App::tracepm (from Perl distribution App-tracepm), released on 2020-04-08. SYNOPSIS This distribution provides command-line utility called tracepm. FUNCTIONS tracepm Usage: tracepm(%args) -> [status, msg, payload, meta] Trace dependencies of your Perl script. This function is not exported. Arguments ('*' denotes required arguments): * args => *array[str]* Script arguments. * cache_prereqscanner => *bool* (default: 0) Whether cache Perl::PrereqScanner{,::Lite} result. * core => *bool* Filter only modules that are in core. * detail => *bool* (default: 0) Whether to return records instead of just module names. * eval => *str* Specify script from command-line instead. * method => *str* (default: "fatpacker") Tracing method to use. There are several tracing methods that can be used: * "fatpacker" (the default): This method uses the same method that "fatpacker trace" uses, which is running the script using "perl -c" then collect the populated %INC. Only modules loaded during compile time are detected. * "require": This method runs your script normally until it exits. At the start of program, it replaces "CORE::GLOBAL::require()" with a routine that logs the require() argument to the log file. Modules loaded during runtime is also logged by this method. But some modules might not work, specifically modules that also overrides require() (there should be only a handful of modules that do this though). * "prereqscanner": This method does not run your Perl program, but statically analyze it using "Perl::PrereqScanner". Since it uses "PPI", it can be rather slow. * "prereqscanner_recurse": Like "prereqscanner", but will recurse into all non-core modules until they are exhausted. Modules that are not found will be skipped. It is recommended to use the various "recurse_exclude_*" options options to limit recursion. * "prereqscanner_lite": This method is like the "prereqscanner" method, but instead of "Perl::PrereqScanner" it uses "Perl::PrereqScanner::Lite". The latter does not use "PPI" but use "Compiler::Lexer" which is significantly faster. * "prereqscanner_lite_recurse": Like "prereqscanner_lite", but recurses. * module => *perl::modname* --module MOD is equivalent to --script 'use MOD'. * multiple_runs => *array[hash]* Parameter to run script multiple times. A more general alternative to using "args". Script will be run multiple times, each with setting from element of this option. Can be used to reach multiple run pathways and trace more modules. Example: [{"args":["-h"]}, # help mode {"args":[""], "env":{"COMP_LINE":"cmd x", "COMP_POINT":5}}, ], * perl_version => *str* Perl version, defaults to current running version. This is for determining which module is core (the list differs from version to version. See Module::CoreList for more details. * recurse_exclude => *array[str]* When recursing, exclude some modules. * recurse_exclude_core => *bool* When recursing, exclude core modules. * recurse_exclude_pattern => *array[str]* When recursing, exclude some module patterns. * recurse_exclude_xs => *bool* When recursing, exclude XS modules. * script => *filename* Path to script file. * trap_script_output => *bool* Trap script output so it does not interfere with trace result. * use => *array[str]* Additional modules to "use". This is like running: perl -MModule1 -MModule2 script.pl * xs => *bool* Filter only modules that are XS modules. 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 (payload) is optional, the actual result. Fourth element (meta) is called result metadata and is optional, a hash that contains extra information. Return value: (any) HOMEPAGE Please visit the project's homepage at . SOURCE Source repository is at . BUGS Please report any bugs or feature requests on the bugtracker website 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 COPYRIGHT AND LICENSE This software is copyright (c) 2020, 2017, 2016, 2015, 2014 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.