Class: ChangelogGenerator

Inherits:
Object
  • Object
show all
Defined in:
lib/github_changelog_generator.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ ChangelogGenerator

Returns a new instance of ChangelogGenerator.



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# File 'lib/github_changelog_generator.rb', line 13

def initialize()

  @options = Parser.parse_options
  if @options[:token]
    @github = Github.new oauth_token: @options[:token]
  else
    @github = Github.new
  end
  @all_tags = self.get_all_tags
  @pull_requests = self.get_all_closed_pull_requests

  @tag_times_hash = {}
end

Instance Attribute Details

#all_tags ⇒ Object

Returns the value of attribute all_tags.



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# File 'lib/github_changelog_generator.rb', line 11

def all_tags
  @all_tags
end

#options ⇒ Object

Returns the value of attribute options.



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# File 'lib/github_changelog_generator.rb', line 11

def options
  @options
end

Instance Method Details

#compund_changelog ⇒ Object 



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# File 'lib/github_changelog_generator.rb', line 51

def compund_changelog
  if @options[:verbose]
    puts 'Generating changelog:'
  end

  log = "# Changelog\n\n"

  if @options[:last]
    log += self.generate_log_between_tags(self.all_tags[0], self.all_tags[1])
  elsif @options[:tag1] && @options[:tag2]

    tag1 = @options[:tag1]
    tag2 = @options[:tag2]
    tags_strings = []
    self.all_tags.each { |x| tags_strings.push(x['name'])}

    if tags_strings.include?(tag1)
      if tags_strings.include?(tag2)
        hash = Hash[tags_strings.map.with_index.to_a]
        index1 = hash[tag1]
        index2 = hash[tag2]
        log += self.generate_log_between_tags(self.all_tags[index1], self.all_tags[index2])
      else
        puts "Can't find tag #{tag2} -> exit"
        exit
      end
    else
      puts "Can't find tag #{tag1} -> exit"
      exit
    end
  else
    log += self.generate_log_for_all_tags
  end


  if @options[:verbose]
    puts log
  end

  output_filename = "#{@options[:project]}_changelog.md"
  File.open(output_filename, 'w') { |file| file.write(log) }

  puts "Done! Generated log placed in #{output_filename}"

end

#create_log(pull_requests, tag_name, tag_time) ⇒ Object 



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# File 'lib/github_changelog_generator.rb', line 170

def create_log(pull_requests, tag_name, tag_time)

  trimmed_tag = tag_name.tr('v', '')
  log = "## [#{trimmed_tag}] (https://github.com/#{@options[:user]}/#{@options[:project]}/tree/#{tag_name})\n"

  time_string = tag_time.strftime @options[:format]
  log += "#### #{time_string}\n"

  pull_requests.each { |dict|
    merge = "#{dict[:title]} [\\##{dict[:number]}](https://github.com/#{@options[:user]}/#{@options[:project]}/pull/#{dict[:number]})\n\n"
    log += "- #{merge}"
  }
  log
end

#exec_command(cmd) ⇒ Object 



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# File 'lib/github_changelog_generator.rb', line 31

def exec_command(cmd)
  exec_cmd = "cd #{$project_path} && #{cmd}"
  %x[#{exec_cmd}]
end

#generate_log_between_tags(since_tag, till_tag) ⇒ Object 



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# File 'lib/github_changelog_generator.rb', line 144

def generate_log_between_tags(since_tag, till_tag)
  since_tag_time = self.get_time_of_tag(since_tag)
  till_tag_time = self.get_time_of_tag(till_tag)

  # if we mix up tags order - lits fix it!
  if since_tag_time > till_tag_time
    since_tag, till_tag = till_tag, since_tag
    since_tag_time, till_tag_time = till_tag_time, since_tag_time
  end

  till_tag_name = till_tag['name']

  pull_requests = Array.new(@pull_requests)

  pull_requests.delete_if { |req|
    t = Time.parse(req[:closed_at]).utc
    true_classor_false_class = t > since_tag_time
    classor_false_class = t < till_tag_time

    in_range = (true_classor_false_class) && (classor_false_class)
    !in_range
  }

  self.create_log(pull_requests, till_tag_name, till_tag_time)
end

#generate_log_for_all_tags ⇒ Object 



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# File 'lib/github_changelog_generator.rb', line 97

def generate_log_for_all_tags
  log = ''
  for index in 1 ... self.all_tags.size
    log += self.generate_log_between_tags(self.all_tags[index-1], self.all_tags[index])
  end

  log
end

#get_all_closed_pull_requests ⇒ Object 



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# File 'lib/github_changelog_generator.rb', line 37

def get_all_closed_pull_requests


  issues = @github.pull_requests.list @options[:user], @options[:project], :state => 'closed'
  json = issues.body

  if @options[:verbose]
    puts 'Receive all pull requests'
  end

  json

end

#get_all_merged_pull_requests ⇒ Object 



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# File 'lib/github_changelog_generator.rb', line 110

def get_all_merged_pull_requests
  json = self.get_all_closed_pull_requests
  puts 'Check if the requests is merged... (it can take a while)'

  json.delete_if { |req|
    merged = self.is_megred(req[:number])
    if @options[:verbose]
      puts "##{req[:number]} #{merged ? 'merged' : 'not merged'}"
    end
    !merged
  }
end

#get_all_tags ⇒ Object 



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# File 'lib/github_changelog_generator.rb', line 123

def get_all_tags

  url = "https://api.github.com/repos/#{@options[:user]}/#{@options[:project]}/tags"

  if @options[:verbose]
    puts "Receive tags for repo #{url}"
  end

  response = HTTParty.get(url,
                          :headers => {'Authorization' => 'token 8587bb22f6bf125454768a4a19dbcc774ea68d48',
                                      'User-Agent' => 'Changelog-Generator'})

  json_parse = JSON.parse(response.body)

  if @options[:verbose]
    puts "Found #{json_parse.count} tags"
  end

  json_parse
end

#get_time_of_tag(prev_tag) ⇒ Object 



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# File 'lib/github_changelog_generator.rb', line 185

def get_time_of_tag(prev_tag)

  if @tag_times_hash[prev_tag['name']]
    return @tag_times_hash[prev_tag['name']]
  end

  if @options[:verbose]
    puts "Get time for tag #{prev_tag['name']}"
  end

  github_git_data_commits_get = @github.git_data.commits.get @options[:user], @options[:project], prev_tag['commit']['sha']
  time_string = github_git_data_commits_get['committer']['date']
  Time.parse(time_string)
  @tag_times_hash[prev_tag['name']] = Time.parse(time_string)
end

#is_megred(number) ⇒ Object 



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# File 'lib/github_changelog_generator.rb', line 106

def is_megred(number)
  @github.pull_requests.merged? @options[:user], @options[:project], number
end

#print_json(json) ⇒ Object 



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# File 'lib/github_changelog_generator.rb', line 27

def print_json(json)
  puts JSON.pretty_generate(json)
end