Name

Module::Provision - Create Perl distributions with VCS and selectable toolchain

Version

This documents version v0.10.$Rev: 1 $ of Module::Provision

Synopsis

# To reduce typing define a shell alias
alias mp='module_provision --base ~/Projects'

# Create a new distribution in your Projects directory with Git VCS
mp dist Foo::Bar 'Optional one line abstract'

# Add another module
cd ~/Projects/Foo-Bar
mp module Foo::Bat 'Optional one line abstract'

# Add a program to the bin directory
mp program bar-cli 'Optional one line abstract'

# Add another test script
mp test 11another-one.t

# Edit the project master file
mp -q edit_project

# Update the version numbers of the project files
mp update_version 0.1 0.2

# Regenerate meta data files
mp generate_metadata

# Command line help
mp -? | -H | -h [sub-command] | list_methods | dump_self

Description

Module::Provision is used to create a skeletal CPAN distribution, including basic builder scripts, tests, documentation, and module code. It creates a VCS repository and, in the Git case, installs some hooks that mimic the RCS Revision keyword expansion

On first use the directory ~/.module_provision is created and populated with templates and an index file index.json. The author name, id, and email are derived from the system (the environment variables AUTHOR and EMAIL take precedence) and stored in the author, author_id, and author_email files

If the default builder (MB) is used, then the project file Build.PL loads inc::Bob which instantiates an inline subclass of Module::Build. The code for the subclass is in inc::SubClass. The file inc::CPANTesting allows for fine grained control over which tests are run by which CPAN Testing smokers

If the Git VCS is used precommit and commit-msg hooks are installed. The precommit hook will expand the RCS Revision keyword in files on the master branch if the file .distribution_name.rev exists in the parent of the working tree. The precommit hook will also update the version number and date/time stamp in the change log (Changes). The commit-msg hook will extract the first comment line from the change log and use it as the commit message header. The remainder of the commit message (if any) is used as the commit message body. This means that so long as one detail line is added to the change log no other commit message text is required. The following makes for a suitable git log alias:

alias gl='git log -10 --pretty=format:"%h %ci %s" | cut -c1-79'

The templates contain comment lines like:

# @(#)Ident: Provision.pm 2013-04-15 13:52 pjf ;

These are expanded automatically by Emacs using this Lisp code:

(setq time-stamp-active     t
      time-stamp-line-limit 10
      time-stamp-format     " %f %04y-%02m-%02d %02H:%02M %u "
      time-stamp-start      "Ident:"
      time-stamp-time-zone  "UTC"
      time-stamp-end        ";")

The alias:

alias ident='ack "@\(#\)"'

uses the App::Ack program to implement the old SYSV R4 ident command

The templates for dist.ini, Build.PL, and Makefile.PL contain the following comments which are interpreted by Emacs:

# Local Variables:
# mode: perl
# eval: (load-project-state "[% appdir %]")
# tab-title: [% project %]
# tab-width: 3
# End:

Perl mode is preferred over C-Perl mode since the former has better syntax highlighting. Tabs are expanded to three spaces. The tab-title variable is used by Yakuake::Sessions to set the tab title for the terminal emulator. The load-project-state Lisp looks like this:

(defun load-project-state (state-file) "Recovers the TinyDesk state from file"
   (let ((session-path (concat "~/.emacs.d/config/state." state-file)))
      (if (file-exists-p session-path) (tinydesk-recover-state session-path)
         (message (concat "Not found: " state-file)))))

It assumes that the TinyDesk state file containing the list of files to edit for the project has been saved in ~/.emacs.d/config/state.[% appdir %]. To work on a project; change directory to the working copy, edit the project file Build.PL with Emacs, this will load all of the other files in the project into separate buffers displaying each in the tab bar. This Lisp code will load TinyDesk and turn tab bar mode on whenever a Perl file is edited:

(add-hook 'perl-mode-hook
          '(lambda ()
             (require 'fic-mode) (turn-on-fic-mode) (diminish 'fic-mode nil)
             (require 'psvn) (require 'tinydesk) (tabbar-mode t)
             (require 'tinyperl) (diminish 'tinyperl-mode nil)))

This Lisp code will do likewise when a dist.ini file is edited:

(add-hook 'conf-windows-mode-hook
          '(lambda ()
             (require 'tinydesk) (tabbar-mode t)))

Configuration and Environment

Extends Module::Provision::Base. Applies these traits; AddingFiles, CreatingDistributions, Rendering, and UpdatingContent

Defines no attributes

Subroutines/Methods

dist

module_provision dist Foo::Bar 'Optional one line abstract'

Create a new distribution specified by the module name on the command line

edit_project

module_provision -q edit_project

Edit the project file (one of; dist.ini, Build.PL, or Makefile.PL) in the project directory. The editor defaults to emacs but can be set on the command line, e.g -o editor=vim

generate_metadata

module_provision generate_metadata

Generates the distribution metadata files

init_templates

module_provision init_templates

Initialise the .module_provision directory and create the index.json file

module

module_provision module Foo::Bat 'Optional one line abstract'

Creates a new module specified by the class name on the command line

program

module_provision program bar-cli 'Optional one line abstract'

Creates a new program specified by the program name on the command line

show_tab_title

module_provision -q show_tab_title

Print the tab title for the current project. Can be used like this;

alias ep='mp -q edit_project ; \
          yakuake_session set_tab_title_for_project $(mp -q show_tab_title)'

test

module_provision test 11another-one.t

Creates a new test specified by the test file name on the command line

module_provision update_copyright_year 2013 2014

Substitutes the existing copyright year for the new copyright year in all files in the MANIFEST

update_version

module_provision update_version 0.1 0.2

Substitutes the existing version number for the new version number in all files in the MANIFEST

Diagnostics

Add -D to command line to turn on debug output

Dependencies

Module::Provision::Base
Module::Provision::TraitFor::AddingFiles
Module::Provision::TraitFor::CreatingDistributions
Module::Provision::TraitFor::Rendering
Module::Provision::TraitFor::UpdatingContent
Module::Provision::TraitFor::VCS

Incompatibilities

There are no known incompatibilities in this module

Bugs and Limitations

There are no known bugs in this module. Please report problems to http://rt.cpan.org/NoAuth/Bugs.html?Dist=Module-Provision. Source code is on Github git://github.com/pjfl/Module-Provision.git. Patches and pull requests are welcome

Acknowledgements

Larry Wall - For the Perl programming language

Module::Starter - For some of the documentation and tests

Author

Peter Flanigan, <pjfl@cpan.org>

License and Copyright

Copyright (c) 2013 Peter Flanigan. All rights reserved

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

This program is distributed in the hope that it will be useful, but WITHOUT WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE