App::Sqitch::Plan::Change(3)

Name
App::Sqitch::Plan::Change - Sqitch deployment plan tag

Synopsis
  my $plan = App::Sqitch::Plan->new( sqitch => $sqitch );
  for my $line ($plan->lines) {
      say $line->as_string;
  }

Description
A App::Sqitch::Plan::Change represents a change as parsed from a plan file. In addition to the interface inherited from App::Sqitch::Plan::Line, it offers interfaces for parsing dependencies from the deploy script, as well as for opening the deploy, revert, and verify scripts.

Interface
See App::Sqitch::Plan::Line for the basics.

  Accessors
"since_tag"

An App::Sqitch::Plan::Tag object representing the last tag to appear in the plan before the change. May be "undef".

"pspace"

Blank space separating the change name from the dependencies, timestamp, and planner in the file.

"is_reworked"

Boolean indicting whether or not the change has been reworked.

"info"

Information about the change, returned as a string. Includes the change ID, the name and email address of the user who added the change to the plan, and the timestamp for when the change was added to the plan.

"id"

A SHA1 hash of the data returned by "info()", which can be used as a globally-unique identifier for the change.

"timestamp"

Returns the an App::Sqitch::DateTime object representing the time at which the change was added to the plan.

"planner_name"

Returns the name of the user who added the change to the plan.

"planner_email"

Returns the email address of the user who added the change to the plan.

"parent"

Parent change object.

"tags"

A list of tag objects associated with the change.

  Instance Methods
"path_segments"

  my @segments = $change->path_segments;

Returns the path segment for the change. For example, if the change is named "foo", "('foo.sql')" is returned. If the change is named "functions/bar> "('functions', 'bar.sql')" is returned. Internally, this data is used to create the deploy, revert, and verify file names.

"deploy_dir"

  my $file = $change->deploy_dir;

Returns the path to the deploy directory for the change.

"deploy_file"

  my $file = $change->deploy_file;

Returns the path to the deploy script file for the change.

"revert_dir"

  my $file = $change->revert_dir;

Returns the path to the revert directory for the change.

"revert_file"

  my $file = $change->revert_file;

Returns the path to the revert script file for the change.

"verify_dir"

  my $file = $change->verify_dir;

Returns the path to the verify directory for the change.

"verify_file"

  my $file = $change->verify_file;

Returns the path to the verify script file for the change.

"script_file"

  my $file = $sqitch->script_file($script_name);

Returns the path to a script, for the change.

"script_hash"

  my $hash = $change->script_hash;

Returns the hex digest of the SHA-1 hash for the deploy script.

"rework_tags"

  my @tags = $change->rework_tags;

Returns a list of tags that occur between a change and its next reworking. Returns an empty list if the change is not reworked.

"add_tag"

  $change->add_tag($tag);

Adds a tag object to the change.

"add_rework_tags"

  $change->add_rework_tags(@tags);

Adds tags to the list of rework tags.

"clear_rework_tags"

  $change->clear_rework_tags(@tags);

Clears the list of rework tags.

"requires"

  my @requires = $change->requires;

Returns a list of App::Sqitch::Plan::Depend objects representing changes required by this change.

"requires_changes"

  my @requires_changes = $change->requires_changes;

Returns a list of the "App::Sqitch::Plan::Change" objects representing changes required by this change.

"conflicts"

  my @conflicts = $change->conflicts;

Returns a list of App::Sqitch::Plan::Depend objects representing changes with which this change conflicts.

"conflicts_changes"

  my @conflicts_changes = $change->conflicts_changes;

Returns a list of the "App::Sqitch::Plan::Change" objects representing changes with which this change conflicts.

"dependencies"

  my @dependencies = $change->dependencies;

Returns a list of App::Sqitch::Plan::Depend objects representing all dependencies, required and conflicting.

"is_deploy"

Returns true if the change is intended to be deployed, and false if it should be reverted.

"is_revert"

Returns true if the change is intended to be reverted, and false if it should be deployed.

"action"

Returns "deploy" if the change should be deployed, or "revert" if it should be reverted.

"format_tag_qualified_name"

  my $tag_qualified_name = $change->format_tag_qualified_name;

Returns a string with the change name followed by the next tag in the plan. Useful for displaying unambiguous change specifications for reworked changes. If there is no tag appearing in the file after the change, the @HEAD will be used.

"format_name_with_tags"

  my $name_with_tags = $change->format_name_with_tags;

Returns a string formatted with the change name followed by the list of tags, if any, associated with the change. Used to display a change as it is deployed.

"format_dependencies"

  my $dependencies = $change->format_dependencies;

Returns a string containing a bracketed list of dependencies. If there are no dependencies, an empty string will be returned.

"format_name_with_dependencies"

  my $name_with_dependencies = $change->format_name_with_dependencies;

Returns a string formatted with the change name followed by a bracketed list of dependencies, if any, associated with the change. Used to display a change when added to a plan.

"format_op_name_dependencies"

  my $op_name_dependencies = $change->format_op_name_dependencies;

Like "format_name_with_dependencies", but includes the operator, if present.

"format_planner"

  my $planner = $change->format_planner;

Returns a string formatted with the name and email address of the user who added the change to the plan.

"deploy_handle"

  my $fh = $change->deploy_handle;

Returns an IO::File file handle, opened for reading, for the deploy script for the change.

"revert_handle"

  my $fh = $change->revert_handle;

Returns an IO::File file handle, opened for reading, for the revert script for the change.

"verify_handle"

  my $fh = $change->verify_handle;

Returns an IO::File file handle, opened for reading, for the verify script for the change.

"note_prompt"

  my $prompt = $change->note_prompt(
      for     => 'rework',
      scripts => [$change->deploy_file, $change->revert_file],
  );

Overrides the implementation from "App::Sqitch::Plan::Line" to add the "files" parameter. This is a list of the files to be created for the command. These will usually be the deploy, revert, and verify files, but the caller might not be creating all of them, so it needs to pass the list.

See Also

App::Sqitch::Plan
    Class representing a plan.

App::Sqitch::Plan::Line
    Base class from which App::Sqitch::Plan::Change inherits.

sqitch
    The Sqitch command-line client.

Author
David E. Wheeler <david@justatheory.com>

License
Copyright (c) 2012-2018 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.