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# frozen_string_literal: true
require 'task_list'
require 'task_list/filter'
# Contains functionality for objects that can have task lists in their
# descriptions. Task list items can be added with Markdown like "* [x] Fix
# bugs".
#
# Used by MergeRequest and Issue
module Taskable
COMPLETED = 'completed'
INCOMPLETE = 'incomplete'
COMPLETE_PATTERN = /\[[xX]\]/.freeze
INCOMPLETE_PATTERN = /\[[[:space:]]\]/.freeze
ITEM_PATTERN = %r{
^
(?:(?:>\s{0,4})*) # optional blockquote characters
((?:\s*(?:[-+*]|(?:\d+\.)))+) # list prefix (one or more) required - task item has to be always in a list
\s+ # whitespace prefix has to be always presented for a list item
( # checkbox
#{COMPLETE_PATTERN}|#{INCOMPLETE_PATTERN}
)
(\s.+) # followed by whitespace and some text.
}x.freeze
# ignore tasks in code or html comment blocks. HTML blocks
# are ok as we allow tasks inside <detail> blocks
REGEX = %r{
#{::Gitlab::Regex.markdown_code_or_html_comments}
|
(?<task_item>
#{ITEM_PATTERN}
)
}mx.freeze
def self.get_tasks(content)
items = []
content.to_s.scan(REGEX) do
next unless $~[:task_item]
$~[:task_item].scan(ITEM_PATTERN) do |prefix, checkbox, label|
items << TaskList::Item.new("#{prefix.strip} #{checkbox}", label.strip)
end
end
items
end
def self.get_updated_tasks(old_content:, new_content:)
old_tasks = get_tasks(old_content)
new_tasks = get_tasks(new_content)
new_tasks.select.with_index do |new_task, i|
old_task = old_tasks[i]
next unless old_task
new_task.source == old_task.source && new_task.complete? != old_task.complete?
end
end
# Called by `TaskList::Summary`
def task_list_items
return [] if description.blank?
@task_list_items ||= Taskable.get_tasks(description) # rubocop:disable Gitlab/ModuleWithInstanceVariables
end
def tasks
@tasks ||= TaskList.new(self)
end
# Return true if this object's description has any task list items.
def tasks?
tasks.summary.items?
end
# Return a string that describes the current state of this Taskable's task
# list items, e.g. "12 of 20 checklist items completed"
def task_status(short: false)
return '' if description.blank?
sum = tasks.summary
checklist_item_noun = n_('checklist item', 'checklist items', sum.item_count)
if short
format(s_('Tasks|%{complete_count}/%{total_count} %{checklist_item_noun}'),
checklist_item_noun: checklist_item_noun, complete_count: sum.complete_count, total_count: sum.item_count)
else
format(s_('Tasks|%{complete_count} of %{total_count} %{checklist_item_noun} completed'),
checklist_item_noun: checklist_item_noun, complete_count: sum.complete_count, total_count: sum.item_count)
end
end
# Return a short string that describes the current state of this Taskable's
# task list items -- for small screens
def task_status_short
task_status(short: true)
end
def task_completion_status
@task_completion_status ||= {
count: tasks.summary.item_count,
completed_count: tasks.summary.complete_count
}
end
end
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