Module: GemDocs::Overview

Defined in:
lib/gem_docs/overview.rb

Constant Summary collapse 

'Gem Overview (extracted from README.org by gem_docs)'

Class Method Summary collapse

Class Method Details

.overview_re ⇒ Object

Return a Regexp that capture any GemDocs-generated overview comment in the main module library file. The Regex requires the comment to come immediately before the ‘module <GemName>` line of the libary file, or it will not match.



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# File 'lib/gem_docs/overview.rb', line 52

def self.overview_re
  heads = GemDocs.config.overview_headings
  re_str = "#\\s*" + Regexp.quote(BANNER) + ".*"
  heads.each do |h|
    re_str << "\\*\\s+#{Regexp.escape(h)}.*"
  end
  repo = Repo.from_gemspec
  re_str += "(?=\\n\\s*module\\s+#{repo.module_name})"
  Regexp.new(re_str, Regexp::MULTILINE | Regexp::IGNORECASE)
end

.present? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/gem_docs/overview.rb', line 63

def self.present?
  repo = Repo.from_gemspec
  target = File.join("lib", "#{repo.name}.rb")

  return false unless File.exist?(target)

  File.read(target).match?(overview_re)
end

.write_overview? ⇒ Boolean

Returns String The overview from README per config.

Returns:

  • (Boolean) —

    String The overview from README per config



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# File 'lib/gem_docs/overview.rb', line 11

def self.write_overview?
  repo = Repo.from_gemspec
  target = File.join("lib", "#{repo.name}.rb")

  return false unless File.exist?(target)

  overview = extract
  return false unless overview

  old_lib = File.read(target)
  old_match = old_lib.match(overview_re)
  old_comment = old_match.to_s

  new_comment = "    # \#{BANNER}\n    #\n    \#{overview.lines.map { |l| l.match?(/\\A\\s*\\z/) ? '#' : \"# \#{l.rstrip}\" }.join(\"\\n\")}\n  RUBY\n  return false if old_comment == new_comment\n\n  new_lib =\n    if old_match\n      # There was an overview in the old_lib_content, so replace it with\n      # the new_lib_comment.\n      old_lib.sub(old_comment, new_comment)\n    else\n      scanner = StringScanner.new(old_lib)\n      if scanner.scan_until(/^module \#{repo.module_name}/)\n        scanner.pre_match + \"\\n\" + new_comment + \"\\n\" + scanner.matched + scanner.rest\n      else\n        # No `module GemName` in the file.  Add empty one at the end\n        old_lib + \"\\n\" + new_comment + \"\\nmodule \#{repo.module_name}\\nend\"\n      end\n    end\n  File.write(target, new_lib) > 0\nend\n".chomp