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# frozen_string_literal: true
module Tags
extend Rake::DSL if defined?(Rake::DSL)
PROG = ENV['TAGS'] || 'ctags'
RAKEFILES = FileList['Rakefile', '**/*.rake']
FILES = FileList['**/*.rb', '**/*.js'] + RAKEFILES
FILES.exclude('pkg', 'dist')
PROJECT_DIR = ['.']
RVM_GEMDIR = File.join(`rvm gemdir`.strip, "gems") rescue nil
SYSTEM_DIRS = RVM_GEMDIR && File.exists?(RVM_GEMDIR) ? RVM_GEMDIR : []
module_function
# Convert key_word to --key-word.
def keyword(key)
k = key.to_s.gsub(/_/, '-')
(k.length == 1) ? "-#{k}" : "--#{k}"
end
# Run ctags command
def run(*args)
opts = {
:e => true,
:totals => true,
:recurse => true,
}
opts = opts.merge(args.pop) if args.last.is_a?(Hash)
command_args = opts.map { |k, v|
(v == true) ? keyword(k) : "#{keyword(k)}=#{v}"
}.join(" ")
sh %{#{Tags::PROG} #{command_args} #{args.join(' ')}}
end
end
namespace "tags" do
desc "Generate an Emacs TAGS file"
task :emacs, [:all] => Tags::FILES do |t, args|
puts "Making Emacs TAGS file"
verbose(true) do
Tags.run(Tags::PROJECT_DIR)
Tags.run(Tags::RAKEFILES,
:language_force => "ruby",
:append => true)
if args.all
Tags::SYSTEM_DIRS.each do |dir|
Tags.run(dir,
:language_force => "ruby",
:append => true)
end
end
end
end
end
desc "Generate the TAGS file"
task :tags, [:all] => ["tags:emacs"]
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