David E. Wheeler > App-Sqitch-0.953 > App::Sqitch::Plan::Depend

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Name ^

App::Sqitch::Plan::Depend - Sqitch dependency specification

Synopsis ^

  my $depend = App::Sqitch::Plan::Depend->new(
        plan => $plan,
        App::Sqitch::Plan::Depend->parse('!proj:change@tag')
  );

Description ^

An App::Sqitch::Plan::Line represents a single dependency from the dependency list for a planned change. Is is constructed by App::Sqitch::Plan and included in App::Sqitch::Plan::Change objects conflicts and requires attributes.

Interface ^

Constructors

new

  my $depend = App::Sqitch::Plan::Depend->new(%params);

Instantiates and returns a App::Sqitch::Plan::Line object. Parameters:

plan

The plan with which the dependency is associated. Required.

project

Name of the project. Required.

conflicts

Boolean to indicate whether the dependency is a conflicting dependency.

change

The name of the change.

tag

The name of the tag claimed as the dependency.

id

The ID of a change. Mutually exclusive with change and tag.

parse

  my %params = App::Sqitch::Plan::Depend->parse($string);

Parses a dependency specification as extracted from a plan and returns a hash reference of parameters suitable for passing to new(). Returns undef if the string is not a properly-formatted dependency.

Accessors

plan

  my $plan = $depend->plan;

Returns the App::Sqitch::Plan object with which the dependency specification is associated.

conflicts

  say $depend->as_string, ' conflicts' if $depend->conflicts;

Returns true if the dependency is a conflicting dependency, and false if it is not (in which case it is a required dependency).

required

  say $depend->as_string, ' required' if $depend->required;

Returns true if the dependency is a required, and false if it is not (in which case it is a conflicting dependency).

type

  say $depend->type;

Returns a string indicating the type of dependency, either "require" or "conflict".

project

  my $proj = $depend->project;

Returns the name of the project with which the dependency is associated.

got_project

Returns true if the project parameter was passed to the constructor with a defined value, and false if it was not passed to the constructor.

change

  my $change = $depend->change;

Returns the name of the change, if any. If undef is returned, the dependency is a tag-only dependency.

tag

  my $tag = $depend->tag;

Returns the name of the tag, if any. If undef is returned, the dependency is a change-only dependency.

id

Returns the ID of the change if the dependency was specified as an ID, or if the dependency is a local dependency.

got_id

Returns true if the id parameter was passed to the constructor with a defined value, and false if it was not passed to the constructor.

resolved_id

Change ID used by the engine when deploying a change. That is, if the dependency is in the database, it will be assigned this ID from the database. If it is not in the database, resolved_id will be undef.

is_external

Returns true if the dependency references a change external to the current project, and false if it is part of the current project.

is_internal

The opposite of is_external(): returns true if the dependency is in the internal (current) project, and false if not.

Instance Methods

key_name

Returns the key name of the dependency, with the change name and/or tag, properly formatted for passing to the find() method of App::Sqitch::Plan. If the dependency was specified as an ID, rather than a change or tag, then the ID will be returned.

as_string

Returns the project-qualified key name. That is, if there is a project name, it returns a string with the project name, a colon, and the key name. If there is no project name, the key name is returned.

as_plan_string

  my $string = $depend->as_string;

Returns the full stringification of the dependency, suitable for output to a plan file. That is, the same as as_string unless conflicts returns true, in which case it is prepended with "!".

See Also ^

App::Sqitch::Plan

Class representing a plan.

sqitch

The Sqitch command-line client.

Author ^

David E. Wheeler <david@justatheory.com>

License ^

Copyright (c) 2012-2013 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.

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