• NAME
• SYNOPSIS
• DESCRIPTION
• USAGE
• CLASS METHODS
  • new
  • is_perl_file
• OBJECT METHODS
  • analyze_files( @paths, @refs_to_file_contents )
  • find_files( @directories_and_files )
  • list_perl_files
  • is_perl_file($path)
  • should_be_skipped($path)
• BUGS AND LIMITATIONS
• SUPPORT
  • Disussion Forum
  • Bug Reports
• AUTHOR
• LICENSE AND COPYRIGHT
• SEE ALSO

NAME

Perl::Metrics::Simple - Count packages, subs, lines, etc. of many files.

SYNOPSIS

  use Perl::Metrics::Simple;
  my $analyzer = Perl::Metrics::Simple->new;
  my $analysis = $analyzer->analyze_files(@paths, @refs_to_file_contents);
  $file_count    = $analysis->file_count;
  $package_count = $analysis->package_count;
  $sub_count     = $analysis->sub_count;
  $lines         = $analysis->lines;
  $main_stats    = $analysis->main_stats;
  $file_stats    = $analysis->file_stats;

DESCRIPTION

Perl::Metrics::Simple provides just enough methods to run static analysis of one or many Perl files and obtain a few metrics: packages, subroutines, lines of code, and an approximation of cyclomatic (mccabe) complexity for the subroutines and the "main" portion of the code.

Perl::Metrics::Simple is far simpler than Perl::Metrics.

Installs a script called countperl.

USAGE

See the countperl script (included with this distribution) for a simple example of usage.

CLASS METHODS

new

Takes no arguments and returns a new Perl::Metrics::Simple object.

is_perl_file

Takes a path and returns true if the target is a Perl file.

OBJECT METHODS

analyze_files( @paths, @refs_to_file_contents )

Takes an array of files and or directory paths, and/or SCALAR refs to file contents and returns an Perl::Metrics::Simple::Analysis object.

find_files( @directories_and_files )

Uses list_perl_files to find all the readable Perl files and returns a reference to a (possibly empty) list of paths.

list_perl_files

Takes a list of one or more paths and returns an alphabetically sorted list of only the perl files. Uses is_perl_file so may throw an exception if a file is unreadable.

is_perl_file($path)

Takes a path to a file and returns true if the file appears to be a Perl file, otherwise returns false.

If the file name does not match any of @Perl::Metrics::Simple::PERL_FILE_SUFFIXES then the file is opened for reading and the first line examined for a a Perl 'shebang' line. An exception is thrown if the file cannot be opened in this case.

should_be_skipped($path)

Returns true if the path should be skipped when looking for Perl files. Currently skips .svn, CVS, and _darcs directories.

BUGS AND LIMITATIONS

See: http://rt.cpan.org/NoAuth/Bugs.html?Dist=Perl-Metrics-Simple

SUPPORT

Via CPAN:

Disussion Forum

http://www.cpanforum.com/dist/Perl-Metrics-Simple

Bug Reports

http://rt.cpan.org/NoAuth/Bugs.html?Dist=Perl-Metrics-Simple

AUTHOR

    Matisse Enzer
    CPAN ID: MATISSE
    Eigenstate Consulting, LLC
    matisse@eigenstate.net
    http://www.eigenstate.net/

LICENSE AND COPYRIGHT

Copyright (c) 2006-2009 by Eigenstate Consulting, LLC.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

The full text of the license can be found in the LICENSE file included with this module.

SEE ALSO

The countperl script included with this distribution.

PPI

Perl::Critic

Perl::Metrics

http://en.wikipedia.org/wiki/Cyclomatic_complexity