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namespace :generate do
desc 'generates a new scanner NAME=lang [ALT=alternative,plugin,ids] [EXT=file,extensions] [BASE=base lang] '
task :scanner do
raise 'I need a scanner name; use NAME=lang' unless scanner_class_name = ENV['NAME']
raise "Invalid lang: #{scanner_class_name}; use NAME=lang." unless /\A\w+\z/ === scanner_class_name
require 'active_support'
lang = scanner_class_name.underscore
class_name = scanner_class_name.classify
def scanner_file_for_lang lang
File.join(LIB_ROOT, 'coderay', 'scanners', lang + '.rb')
end
scanner_file = scanner_file_for_lang lang
if File.exist? scanner_file
print "#{scanner_file} already exists. Overwrite? [y|N] "
exit unless $stdin.gets.chomp.downcase == 'y'
end
base_lang = ENV.fetch('BASE', 'json')
base_scanner_file = scanner_file_for_lang(base_lang)
puts "Reading base scanner #{base_scanner_file}..."
base_scanner = File.read base_scanner_file
puts "Writing new scanner #{scanner_file}..."
File.open(scanner_file, 'w') do |file|
file.write base_scanner.
sub(/class \w+ < Scanner/, "class #{class_name} < Scanner").
sub(/register_for :\w+/, "register_for :#{lang}").
sub(/file_extension '\S+'/, "file_extension '#{ENV.fetch('EXT', lang).split(',').first}'")
end
test_dir = File.join(ROOT, 'test', 'scanners', lang)
unless File.exist? test_dir
puts "Creating test folder #{test_dir}..."
sh "mkdir #{test_dir}"
end
test_suite_file = File.join(test_dir, 'suite.rb')
unless File.exist? test_suite_file
puts "Creating test suite file #{test_suite_file}..."
base_suite = File.read File.join(test_dir, '..', 'json', 'suite.rb')
File.open(test_suite_file, 'w') do |file|
file.write base_suite.sub(/class JSON/, "class #{class_name}")
end
end
if extensions = ENV['EXT']
file_type_file = File.join(LIB_ROOT, 'coderay', 'helpers', 'filetype.rb')
puts "Not automated. Remember to add your extensions to #{file_type_file}:"
for ext in extensions.split(',')
puts " '#{ext}' => :#{lang},"
end
end
if alternative_ids = ENV['ALT']
map_file = File.join(LIB_ROOT, 'coderay', 'scanners', '_map.rb')
puts "Not automated. Remember to add your alternative plugin ids to #{map_file}:"
for id in alternative_ids.split(',')
puts " :#{id} => :#{lang},"
end
end
print 'Add to SVN? [Y|n] '
answer = $stdin.gets.chomp.downcase
if answer.empty? || answer == 'y'
sh "svn add #{scanner_file}"
sh "svn add #{test_dir}"
svn_ignore = <<-SVN_IGNORE
*.actual.*
*.expected.html
*.debug.diff
SVN_IGNORE
sh "svn pset svn:ignore '#{svn_ignore}' #{test_dir}"
end
end
end
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