Class: MetaProject::VersionParser

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

Instance Method Summary collapse

Instance Method Details

#parse(changes_file, version) ⇒ Object 



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# File 'lib/meta_project/version_parser.rb', line 3

def parse(changes_file, version)
  release_notes_first = nil
  changes_first = nil
  changes_last = nil
  
  lines = File.open(changes_file).readlines
  state = nil
  lines.each_with_index do |line, n|
    # parse state
    if (line =~ /^==/ && state == :in_release_notes && state != :done)
      changes_first = changes_last = n
      state = :done
    end
    if line =~ /#{version}/ && state.nil?
      state = :in_release_notes
      release_notes_first = n+1
    end
    if (line =~ /^\*/ && state == :in_release_notes)
      state = :in_changes
      changes_first = changes_last = n
    end
    if (line =~ /^\*/ && state == :in_changes)
      changes_last = n
    end
    if (line =~ /^==/ && state == :in_changes)
      state = :done
    end
  end
  
  release_notes = lines[release_notes_first..changes_first-1].join("")
  raise "Release notes for #{version} couldn't be parsed from #{changes_file}" if release_notes.strip == ""

  release_changes = lines[changes_first..changes_last].collect do |line| 
    line.length >= 2 ? line[2..-1].chomp : line
  end
  raise "Release changes for #{version} couldn't be parsed from #{changes_file}" if release_changes.length == 0

  Version.new(release_notes, release_changes)
end