NAME

       Dist::Zilla::Plugin::Bootstrap::lib - A minimal boot-strapping for Dist::Zilla Plug-ins.

VERSION

       version 1.001002

SYNOPSIS

           [Bootstrap::lib]
           try_built   = 1  ; try using an existing built distribution named Dist-Name-*
           fallback    = 0  ; if try_built can't find a built distribution, or there's more than one, don't bootstrap
                            ; using lib/ instead

DESCRIPTION

       This module exists for loading either "/lib" or "/Dist-Name-$VERSION/lib" into your @INC early on.

       This is mostly useful for writing "Dist::Zilla" plug-ins, so that you may build and release a plug-in
       using itself.

USE CASES

   Simple single-phase self-dependency
       This module really is only useful in the case where you need to use something like

           dzil -Ilib

       For every call to "Dist::Zilla", and this is mainly a convenience.

       For that

           [Bootstrap::lib]

       on its own will do the right thing.

   Installed-Only self-dependency
       The other useful case is when you would normally do

           dzil build                 # pass 1 that generates Foo-1.234 with a pre-installed Foo-1.233
           dzil -IFoo-1.234/lib build # pass 2 that generates Foo-1.234 with Foo-1.234

       For that

           [Bootstap::lib]
           try_built   = 1
           fallback    = 0

       Will do what you want.

           dzil build   # pass1 -> creates Foo-1.234 without bootstrapping
           dzil build   # pass2 -> creates Foo-1.234 boot-strapped from the previous build

   2-step self-dependency
       There's a 3rd useful case which is a hybrid of the 2, where you /can/ build from your own sources without
       needing a pre-installed version, just you don't want that for release code ( e.g.: $VERSION being "undef"
       in code that is run during release is "bad" )

           [Bootstrap::lib]
           try_built = 1
           fallback  = 1

       Then

           dzil build  # pass1 -> creates Foo-1.234 from bootstrapped $root/lib
           dzil build  # pass2 -> creates Foo-1.234 from bootstrapped $root/Foo-1.234

PRECAUTIONS

   DO NOT
       DO NOT use this library from inside a bundle. It will not likely work as expected, and you DO NOT want to
       bootstrap everything in all cases.

   NO VERSION
       On its own,

           [Bootstrap::lib]

       At present, using this module in conjunction with a module with no explicitly defined version in the
       source will result in the executed instance of that plug-in also having NO VERSION.

       If this is a problem for you, then its suggested you try either variation of using

           [Bootstrap::lib]
           try_built = 1
           ; no_fallback = 1   #

   SUCKS AT GUESSING
       The core mechanism behind "try_built" relies on looking in your project directory for a previous build
       directory of some kind.

       And there's no way for it to presently pick a "best" version when there are more than one, or magically
       provide a better solution if there are "zero" versions readily available.

       This is mostly because there is no way to determine the "current" version we are building for, because
       the point in the execution cycle is so early, no version plugins are likely to be even instantiated yet,
       and some version plugins are dependent on incredibly complex precursors ( like git ), so by even trying
       to garner the version we're currently building, we could be prematurely cutting off a vast majority of
       modules from even being able to bootstrap.

       Even as it is, us using "zilla->name" means that if your dist relies on some process to divine its name,
       the module that does this must:

       •   be loaded and declared prior to "Bootstrap::lib" in the "dist.ini"

       •   not itself be the module you are presently developing/bootstrapping

       The only way of working around that I can envision is adding parameters to "Bootstrap::lib" to specify
       the dist name and version name... but if you're going to do that, you may as well stop using external
       plugins to discover that, and hard-code those values in "dist.ini" to start with.

   STILL NOT REALLY A PLUGIN
       Starting at version 0.04000000 ( read: 0.04_0000_00 aka 0.04 + 0 x 4 + 0 x 2 ) this module is a fully
       fledged class, different only from standard Dist::Zilla Plugins in that it doesn't partake in normal
       phase order, and only executes during a special custom "::Bootstrap" phase, which is more or less a
       different name and implementation of "BUILD", in that "bootstrap" is invoked after "plugin_from_config"
       is called ( where "new" is called ), which occurs somewhere in the middle of "register_component"

       This module also appears on the plugin stash, and responds naturally to "metaconfig" requests.

AUTHOR

       Kent Fredric <kentnl@cpan.org>

COPYRIGHT AND LICENSE

       This software is copyright (c) 2017 by Kent Fredric <kentnl@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.