github-changelog-generator/lib/github_changelog_generator/task.rb
Eric Putnam 587557e1ac
Refactor generation code and allow custom sections
There's a lot in this PR.
- Added a Section class to more easily make the other changes and
  hopefully add flexibility for the future
- Added an option called `configure_sections` that allows you create
  your own custom sections. It blows away all other sections and uses
only the ones you give it.
- Added an option called `add_sections` that allows you to add_sections
  to the default section set
- Added an option called `include_merged` that can be used when
  configure_sections is defined. Configure sections blows away any and
all default sections so to get this one back, you have to set this
option.
- Added tests for this stuff

@HAIL9000 was a co-author. Because of a little git snafu, I accidentally
squashed all of our work into one so it looks like it was just me.

---

Refactor details:

Before this change, the code in generator.rb and generator_generation.rb was conflated and
method call flow went back and forth between the two files seemingly
randomly. They also both defined the exact same class, which is
un-ruby-ish. I tried to separate methods used for the whole changelog
generation from methods used for specific parts of the changelog and
move them into specific classes.

I reasoned that a changelog is a series of "entries" of all tagged
releases plus an extra entry for the unreleased entry. Each entry is
comprised of a header and a series of "sections" for that entry. Each
section is comprized of a list of issues and/or pull requests for that
entry. So the log contains entries, entries contain sections, and
sections contain issues & prs. I have structured the classes around this idea.

- lib/github_changelog_generator/generator/generator.rb is for code
related to generating the entire changelog.
- lib/github_changelog_generator/generator/entry.rb is for code related
to generating entries.
- lib/github_changelog_generator/generator/section.rb is for code
relating to geneating entry sections.

Issues and PRs are already special objects, so it doesn't make sense to
break those out into their own class.
2017-12-14 16:13:41 -08:00

68 lines
2.1 KiB
Ruby

# frozen_string_literal: true
require "rake"
require "rake/tasklib"
require "github_changelog_generator"
module GitHubChangelogGenerator
class RakeTask < ::Rake::TaskLib
include ::Rake::DSL if defined?(::Rake::DSL)
OPTIONS = %w[ user project token date_format output
bug_prefix enhancement_prefix issue_prefix
header merge_prefix issues
add_issues_wo_labels add_pr_wo_labels
pulls filter_issues_by_milestone author
unreleased_only unreleased unreleased_label
compare_link include_labels exclude_labels
bug_labels enhancement_labels
between_tags exclude_tags exclude_tags_regex since_tag max_issues
github_site github_endpoint simple_list
future_release release_branch verbose release_url
base configure_sections add_sections]
OPTIONS.each do |o|
attr_accessor o.to_sym
end
# Public: Initialise a new GitHubChangelogGenerator::RakeTask.
#
# Example
#
# GitHubChangelogGenerator::RakeTask.new
def initialize(*args, &task_block)
@name = args.shift || :changelog
define(args, &task_block)
end
def define(args, &task_block)
desc "Generate a Changelog from GitHub"
yield(*[self, args].slice(0, task_block.arity)) if task_block
# clear any (auto-)pre-existing task
Rake::Task[@name].clear if Rake::Task.task_defined?(@name)
task @name do
# mimick parse_options
options = Parser.default_options
OPTIONS.each do |o|
v = instance_variable_get("@#{o}")
options[o.to_sym] = v unless v.nil?
end
abort "user and project are required." unless options[:user] && options[:project]
generator = Generator.new options
log = generator.compound_changelog
output_filename = (options[:output]).to_s
File.open(output_filename, "w") { |file| file.write(log) }
puts "Done!"
puts "Generated log placed in #{Dir.pwd}/#{output_filename}"
end
end
end
end