Class: Docurium

Inherits:
Object
  • Object
show all
Defined in:
lib/docurium/cli.rb,
lib/docurium/cparser.rb,
lib/docurium/version.rb,
lib/docurium/docparser.rb,
lib/docurium.rb

Defined Under Namespace

Classes: CLI, CParser, DocParser

Constant Summary collapse

Version = 
VERSION = '0.4.2'

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(config_file, repo = nil) ⇒ Docurium

Returns a new instance of Docurium.



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# File 'lib/docurium.rb', line 22

def initialize(config_file, repo = nil)
  raise "You need to specify a config file" if !config_file
  raise "You need to specify a valid config file" if !valid_config(config_file)
  @sigs = {}
  @repo = repo || Rugged::Repository.discover('.')
end

Instance Attribute Details

#branch ⇒ Object

Returns the value of attribute branch.



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# File 'lib/docurium.rb', line 20

def branch
  @branch
end

#data ⇒ Object

Returns the value of attribute data.



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# File 'lib/docurium.rb', line 20

def data
  @data
end

#output_dir ⇒ Object

Returns the value of attribute output_dir.



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# File 'lib/docurium.rb', line 20

def output_dir
  @output_dir
end

Instance Method Details

#format_examples!(data, version) ⇒ Object 



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# File 'lib/docurium.rb', line 48

def format_examples!(data, version)
  examples = []
  if ex = option_version(version, 'examples')
    if subtree = find_subtree(version, ex) # check that it exists
      index = Rugged::Index.new
      index.read_tree(subtree)

      files = []
      index.each do |entry|
        next unless entry[:path].match(/\.c$/)
        files << entry[:path]
      end

      files.each do |file|
        # highlight, roccoize and link
        rocco = Rocco.new(file, files, {:language => 'c'}) do
          ientry = index[file]
          blob = @repo.lookup(ientry[:oid])
          blob.content
        end

        extlen = -(File.extname(file).length + 1)
        rf_path = file[0..extlen] + '.html'
        rel_path = "ex/#{version}/#{rf_path}"

        rocco_layout = Rocco::Layout.new(rocco, @tf)
        # find out how deep our file is so we can use the right
        # number of ../ in the path
        depth = rel_path.count('/') - 1
        if depth == 0
          rocco_layout[:dirsup] = "./"
        else
          rocco_layout[:dirsup] = "../"*depth
        end

        rocco_layout.version = version
        rf = rocco_layout.render


        # look for function names in the examples and link
        id_num = 0
        data[:functions].each do |f, fdata|
          rf.gsub!(/#{f}([^\w])/) do |fmatch|
            extra = $1
            id_num += 1
            name = f + '-' + id_num.to_s
            # save data for cross-link
            data[:functions][f][:examples] ||= {}
            data[:functions][f][:examples][file] ||= []
            data[:functions][f][:examples][file] << rel_path + '#' + name
            "<a name=\"#{name}\" class=\"fnlink\" href=\"../../##{version}/group/#{fdata[:group]}/#{f}\">#{f}</a>#{extra}"
          end
        end

        # write example to the repo
        sha = @repo.write(rf, :blob)
        examples << [rel_path, sha]

        data[:examples] ||= []
        data[:examples] << [file, rel_path]
      end
    end
  end

  examples
end

#generate_doc_for(version) ⇒ Object 



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# File 'lib/docurium.rb', line 115

def generate_doc_for(version)
  index = Rugged::Index.new
  read_subtree(index, version, option_version(version, 'input', ''))
  data = parse_headers(index, version)
  data
end

#generate_docs ⇒ Object 



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# File 'lib/docurium.rb', line 122

def generate_docs
  output_index = Rugged::Index.new
  write_site(output_index)
  @tf = File.expand_path(File.join(File.dirname(__FILE__), 'docurium', 'layout.mustache'))
  versions = get_versions
  versions << 'HEAD'
  nversions = versions.size
  output = Queue.new
  pipes = {}
  versions.each do |version|
    # We don't need to worry about joining since this process is
    # going to die immediately
    read, write = IO.pipe
    pid = Process.fork do
      read.close

      data = generate_doc_for(version)
      examples = format_examples!(data, version)

      Marshal.dump([version, data, examples], write)
      write.close
    end

    pipes[pid] = read
    write.close
  end

  print "Generating documentation [0/#{nversions}]\r"
  head_data = nil

  # This may seem odd, but we need to keep reading from the pipe or
  # the buffer will fill and they'll block and never exit. Therefore
  # we can't rely on Process.wait to tell us when the work is
  # done. Instead read from all the pipes concurrently and send the
  # ruby objects through the queue.
  Thread.abort_on_exception = true
  pipes.each do |pid, read|
    Thread.new do
      result = read.read
      output << Marshal.load(result)
    end
  end

  for i in 1..nversions
    version, data, examples = output.pop

    # There's still some work we need to do serially
    tally_sigs!(version, data)
    sha = @repo.write(data.to_json, :blob)

    print "Generating documentation [#{i}/#{nversions}]\r"

    # Store it so we can show it at the end
    if version == 'HEAD'
      head_data = data
    end

    output_index.add(:path => "#{version}.json", :oid => sha, :mode => 0100644)
    examples.each do |path, id|
      output_index.add(:path => path, :oid => id, :mode => 0100644)
    end

    if head_data
      puts ''
      show_warnings(data)
    end

  end

  # We tally the sigantures in the order they finished, which is
  # arbitrary due to the concurrency, so we need to sort them once
  # they've finsihed.
  sort_sigs!

  project = {
    :versions => versions.reverse,
    :github   => @options['github'],
    :name     => @options['name'],
    :signatures => @sigs,
  }
  sha = @repo.write(project.to_json, :blob)
  output_index.add(:path => "project.json", :oid => sha, :mode => 0100644)

  css = File.read(File.expand_path(File.join(File.dirname(__FILE__), 'docurium', 'css.css')))
  sha = @repo.write(css, :blob)
  output_index.add(:path => "ex/css.css", :oid => sha, :mode => 0100644)

  br = @options['branch']
  out "* writing to branch #{br}"
  refname = "refs/heads/#{br}"
  tsha = output_index.write_tree(@repo)
  puts "\twrote tree   #{tsha}"
  ref = @repo.references[refname]
  user = { :name => @repo.config['user.name'], :email => @repo.config['user.email'], :time => Time.now }
  options = {}
  options[:tree] = tsha
  options[:author] = user
  options[:committer] = user
  options[:message] = 'generated docs'
  options[:parents] = ref ? [ref.target] : []
  options[:update_ref] = refname
  csha = Rugged::Commit.create(@repo, options)
  puts "\twrote commit #{csha}"
  puts "\tupdated #{br}"
end

#get_versions ⇒ Object 



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# File 'lib/docurium.rb', line 254

def get_versions
  releases = @repo.tags
             .map { |tag| tag.name.gsub(%r(^refs/tags/), '') }
             .delete_if { |tagname| tagname.match(%r(-rc\d*$)) }
  VersionSorter.sort(releases)
end

#init_data(version = 'HEAD') ⇒ Object 



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# File 'lib/docurium.rb', line 29

def init_data(version = 'HEAD')
  data = {:files => [], :functions => {}, :callbacks => {}, :globals => {}, :types => {}, :prefix => ''}
  data[:prefix] = option_version(version, 'input', '')
  data
end

#option_version(version, option, default = nil) ⇒ Object 



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# File 'lib/docurium.rb', line 35

def option_version(version, option, default = nil)
  if @options['legacy']
    if valhash = @options['legacy'][option]
      valhash.each do |value, versions|
        return value if versions.include?(version)
      end
    end
  end
  opt = @options[option]
  opt = default if !opt
  opt
end

#parse_headers(index, version) ⇒ Object 



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# File 'lib/docurium.rb', line 261

def parse_headers(index, version)
  headers = index.map { |e| e[:path] }.grep(/\.h$/)

  files = headers.map do |file|
    [file, @repo.lookup(index[file][:oid]).content]
  end

  data = init_data(version)
  parser = DocParser.new
  headers.each do |header|
    records = parser.parse_file(header, files)
    update_globals!(data, records)
  end

  data[:groups] = group_functions!(data)
  data[:types] = data[:types].sort # make it an assoc array
  find_type_usage!(data)

  data
end

#show_warnings(data) ⇒ Object 



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# File 'lib/docurium.rb', line 228

def show_warnings(data)
  out '* checking your api'

  # check for unmatched paramaters
  unmatched = []
  data[:functions].each do |f, fdata|
    unmatched << f if fdata[:comments] =~ /@param/
  end
  if unmatched.size > 0
    out '  - unmatched params in'
    unmatched.sort.each { |p| out ("\t" + p) }
  end

  # check for changed signatures
  sigchanges = []
  @sigs.each do |fun, data|
    if data[:changes]['HEAD']
      sigchanges << fun
    end
  end
  if sigchanges.size > 0
    out '  - signature changes in'
    sigchanges.sort.each { |p| out ("\t" + p) }
  end
end