Name

       App::Sqitch::Target - Sqitch deployment target

Synopsis

         my $plan = App::Sqitch::Target->new(
             sqitch => $sqitch,
             name   => 'development',
         );
         $target->engine->deploy;

Description

       App::Sqitch::Target provides collects, in one place, the engine, plan, and file locations
       required to carry out Sqitch commands. All commands should instantiate a target to work
       with the plan or database.

Interface

   Constructors
       "new"

         my $target = App::Sqitch::Target->new( sqitch => $sqitch );

       Instantiates and returns an App::Sqitch::Target object. The most important parameters are
       "sqitch", "name", and "uri". The constructor tries really hard to figure out the proper
       name and URI during construction. If the "uri" parameter is passed, this is straight-
       forward: if no "name" is passed, "name" will be set to the stringified format of the URI
       (minus the password, if present).

       Otherwise, when no URI is passed, the name and URI are determined by taking the following
       steps:

       •   If there is no name, get the engine key from "--engine" or the "core.engine"
           configuration option. If no key can be determined, an exception will be thrown.

       •   Use the key to look up the target name in the "engine.$engine.target" configuration
           option. If none is found, use "db:$key:".

       •   If the name contains a colon (":"), assume it is also the value for the URI.

       •   Otherwise, it should be the name of a configured target, so look for a URI in the
           "target.$name.uri" configuration option.

       As a general rule, then, pass either a target name or URI string in the "name" parameter,
       and Sqitch will do its best to find all the relevant target information. And if there is
       no name or URI, it will try to construct a reasonable default from the command-line
       options or engine configuration.

       "all_targets"

       Returns a list of all the targets defined by the local Sqitch configuration file. Done by
       examining the configuration object to find all defined targets and engines, as well as the
       default "core" target. Duplicates are removed and the list returned. This method takes two
       parameters:

       •   "sqitch"

           An App::Sqitch object. Required.

       •   "config"

           An App::Sqitch::Config object. If not passed, the object stored in the Sqitch object's
           "config" attribute will be used.

   Accessors
       "sqitch"

         my $sqitch = $target->sqitch;

       Returns the App::Sqitch object that instantiated the target.

       "name"

       "target"

         my $name = $target->name;
         $name = $target->target;

       The name of the target. If there was no name specified, the URI will be used (minus the
       password, if there is one).

       "uri"

         my $uri = $target->uri;

       The URI::db object encapsulating the database connection information.

       "username"

         my $username = $target->username;

       Returns the target username, if any. The username is looked up from the URI.

       "password"

         my $password = $target->password;

       Returns the target password, if any. The password is looked up from the URI or the
       $SQITCH_PASSWORD environment variable.

       "engine"

         my $engine = $target->engine;

       A App::Sqitch::Engine object to use for database interactions with the target.

       "registry"

         my $registry = $target->registry;

       The name of the registry used by the database. The value comes from one of these options,
       searched in this order:

       •   "--registry"

       •   "target.$name.registry"

       •   "engine.$engine.registry"

       •   "core.registry"

       •   Engine-specific default

       "client"

         my $client = $target->client;

       Path to the engine command-line client. The value comes from one of these options,
       searched in this order:

       •   "--client"

       •   "target.$name.client"

       •   "engine.$engine.client"

       •   "core.client"

       •   Engine-and-OS-specific default

       "top_dir"

         my $top_dir = $target->top_dir;

       The path to the top directory of the project. This directory generally contains the plan
       file and subdirectories for deploy, revert, and verify scripts. The value comes from one
       of these options, searched in this order:

       •   "--top-dir"

       •   "target.$name.top_dir"

       •   "engine.$engine.top_dir"

       •   "core.top_dir"

       •   .

       "plan_file"

         my $plan_file = $target->plan_file;

       The path to the plan file. The value comes from one of these options, searched in this
       order:

       •   "--plan-file"

       •   "target.$name.plan_file"

       •   "engine.$engine.plan_file"

       •   "core.plan_file"

       •   $top_dir/sqitch.plan

       "deploy_dir"

         my $deploy_dir = $target->deploy_dir;

       The path to the deploy directory of the project. This directory contains all of the deploy
       scripts referenced by changes in the "plan_file". The value comes from one of these
       options, searched in this order:

       •   "--dir deploy_dir=$deploy_dir"

       •   "target.$name.deploy_dir"

       •   "engine.$engine.deploy_dir"

       •   "core.deploy_dir"

       •   "$top_dir/deploy"

       "revert_dir"

         my $revert_dir = $target->revert_dir;

       The path to the revert directory of the project. This directory contains all of the revert
       scripts referenced by changes the "plan_file". The value comes from one of these options,
       searched in this order:

       •   "--dir revert_dir=$revert_dir"

       •   "target.$name.revert_dir"

       •   "engine.$engine.revert_dir"

       •   "core.revert_dir"

       •   "$top_dir/revert"

       "verify_dir"

         my $verify_dir = $target->verify_dir;

       The path to the verify directory of the project. This directory contains all of the verify
       scripts referenced by changes in the "plan_file". The value comes from one of these
       options, searched in this order:

       •   "--dir verify_dir=$verify_dir"

       •   "target.$name.verify_dir"

       •   "engine.$engine.verify_dir"

       •   "core.verify_dir"

       •   "$top_dir/verify"

       "reworked_dir"

         my $reworked_dir = $target->reworked_dir;

       The path to the reworked directory of the project. This directory contains subdirectories
       for reworked deploy, revert, and verify scripts. The value comes from one of these
       options, searched in this order:

       •   "--dir reworked_dir=$reworked_dir"

       •   "target.$name.reworked_dir"

       •   "engine.$engine.reworked_dir"

       •   "core.reworked_dir"

       •   $top_dir

       "reworked_deploy_dir"

         my $reworked_deploy_dir = $target->reworked_deploy_dir;

       The path to the reworked deploy directory of the project. This directory contains all of
       the reworked deploy scripts referenced by changes in the "plan_file". The value comes from
       one of these options, searched in this order:

       •   "--dir reworked_deploy_dir=$reworked_deploy_dir"

       •   "target.$name.reworked_deploy_dir"

       •   "engine.$engine.reworked_deploy_dir"

       •   "core.reworked_deploy_dir"

       •   "$reworked_dir/reworked_deploy"

       "reworked_revert_dir"

         my $reworked_revert_dir = $target->reworked_revert_dir;

       The path to the reworked revert directory of the project. This directory contains all of
       the reworked revert scripts referenced by changes the "plan_file". The value comes from
       one of these options, searched in this order:

       •   "--dir reworked_revert_dir=$reworked_revert_dir"

       •   "target.$name.reworked_revert_dir"

       •   "engine.$engine.reworked_revert_dir"

       •   "core.reworked_revert_dir"

       •   "$reworked_dir/reworked_revert"

       "reworked_verify_dir"

         my $reworked_verify_dir = $target->reworked_verify_dir;

       The path to the reworked verify directory of the project. This directory contains all of
       the reworked verify scripts referenced by changes in the "plan_file". The value comes from
       one of these options, searched in this order:

       •   "--dir reworked_verify_dir=$reworked_verify_dir"

       •   "target.$name.reworked_verify_dir"

       •   "engine.$engine.reworked_verify_dir"

       •   "core.reworked_verify_dir"

       •   "$reworked_dir/reworked_verify"

       "extension"

         my $extension = $target->extension;

       The file name extension to append to change names to create script file names.  The value
       comes from one of these options, searched in this order:

       •   "--extension"

       •   "target.$name.extension"

       •   "engine.$engine.extension"

       •   "core.extension"

       •   "sql"

       "engine_key"

         my $key = $target->engine_key;

       The key defining which engine to use. This value defines the class loaded by "engine".
       Convenience method for "$target->uri->canonical_engine".

       "dsn"

         my $dsn = $target->dsn;

       The DSN to use when connecting to the target via the DBI. Convenience method for
       "$target->uri->dbi_dsn".

       "username"

         my $username = $target->username;

       The username to use when connecting to the target via the DBI. Convenience method for
       "$target->uri->user".

       "password"

         my $password = $target->password;

       The password to use when connecting to the target via the DBI. Convenience method for
       "$target->uri->password".

See Also

       sqitch
           The Sqitch command-line client.

Author

       David E. Wheeler <david@justatheory.com>

License

       Copyright (c) 2012-2015 iovation Inc.

       Permission is hereby granted, free of charge, to any person obtaining a copy of this
       software and associated documentation files (the "Software"), to deal in the Software
       without restriction, including without limitation the rights to use, copy, modify, merge,
       publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
       to whom the Software is furnished to do so, subject to the following conditions:

       The above copyright notice and this permission notice shall be included in all copies or
       substantial portions of the Software.

       THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
       INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
       PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
       FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
       OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
       DEALINGS IN THE SOFTWARE.