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NAME

    Carton - Perl module dependency manager (aka Bundler for Perl)

SYNOPSIS

      # On your development environment
      > cat cpanfile
      requires 'Plack', '0.9980';
      requires 'Starman', '0.2000';
    
      > carton install
      > git add cpanfile cpanfile.snapshot
      > git commit -m "add Plack and Starman"
    
      # Other developer's machine, or on a deployment box
      > carton install
      > carton exec starman -p 8080 myapp.psgi
    
      # carton exec is optional
      > perl -Ilocal/lib/perl5 local/bin/starman -p 8080 myapp.psgi
      > PERL5LIB=/path/to/local/lib/perl5 /path/to/local/bin/starman -p 8080 myapp.psgi

AVAILABILITY

    Carton only works with perl installation with the complete set of core
    modules. If you use perl installed by a vendor package with modules
    stripped from core, Carton is not expected to work correctly.

    Also, Carton requires you to run your command/application with carton
    exec command or to include the local/lib/perl5 directory in your Perl
    library search path (using PERL5LIB, -I, or lib).

DESCRIPTION

    carton is a command line tool to track the Perl module dependencies for
    your Perl application. Dependencies are declared using cpanfile format,
    and the managed dependencies are tracked in a cpanfile.snapshot file,
    which is meant to be version controlled, and the snapshot file allows
    other developers of your application will have the exact same versions
    of the modules.

    For cpanfile syntax, see cpanfile documentation.

TUTORIAL

 Initializing the environment

    carton will use the local directory to install modules into. You're
    recommended to exclude these directories from the version control
    system.

      > echo local/ >> .gitignore
      > git add cpanfile cpanfile.snapshot
      > git commit -m "Start using carton"

 Tracking the dependencies

    You can manage the dependencies of your application via cpanfile.

      # cpanfile
      requires 'Plack', '0.9980';
      requires 'Starman', '0.2000';

    And then you can install these dependencies via:

      > carton install

    The modules are installed into your local directory, and the
    dependencies tree and version information are analyzed and saved into
    cpanfile.snapshot in your directory.

    Make sure you add cpanfile and cpanfile.snapshot to your version
    controlled repository and commit changes as you update dependencies.
    This will ensure that other developers on your app, as well as your
    deployment environment, use exactly the same versions of the modules
    you just installed.

      > git add cpanfile cpanfile.snapshot
      > git commit -m "Added Plack and Starman"

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