github-changelog-generator/lib/github_changelog_generator/parser.rb

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#!/usr/bin/env ruby
require 'optparse'
class Parser
def self.parse_options
options = {:tag1 => nil, :tag2 => nil, :format => '%d/%m/%y', :output => 'CHANGELOG.md'}
parser = OptionParser.new { |opts|
opts.banner = 'Usage: changelog_generator --user username --project project_name [options]'
opts.on('-u', '--user [USER]', 'Username of the owner of target GitHub repo (required)') do |last|
options[:user] = last
end
opts.on('-p', '--project [PROJECT]', 'Name of project on GitHub (required)') do |last|
options[:project] = last
end
opts.on('-t', '--token [TOKEN]', 'To make more than 50 requests this script required your OAuth token for GitHub. You can generate it on https://github.com/settings/applications') do |last|
options[:token] = last
end
opts.on('-h', '--help', 'Displays Help') do
puts opts
exit
end
opts.on('-v', '--[no-]verbose', 'Run verbosely') do |v|
options[:verbose] = v
end
opts.on('-l', '--last-changes', 'Generate log between only last 2 tags') do |last|
options[:last] = last
end
opts.on('-f', '--date-format [FORMAT]', 'Date format. Default is %d/%m/%y') do |last|
options[:format] = last
end
opts.on('-o', '--output [FORMAT]', 'Output file. Default is CHANGELOG.md') do |last|
options[:output] = last
end
}
parser.parse!
#udefined case with 1 parameter:
if ARGV[0] && !ARGV[1]
puts parser.banner
exit
end
if !options[:user] || !options[:project]
puts parser.banner
exit
end
if ARGV[1]
options[:tag1] = ARGV[0]
options[:tag2] = ARGV[1]
end
options
end
end