Module: GenGen

Defined in:
lib/gengen.rb

Constant Summary collapse

REGEXP = 
/{{{\s*(.*?)\s*}}}/

Class Method Summary collapse

Class Method Details

.extract_otpions!(args) ⇒ Object 



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# File 'lib/gengen.rb', line 56

def extract_otpions!(args)
  options = {}
  args.delete_if do |_|
    if _ =~ /^(\w+)=(\w+)$/
      options[$1] = $2
      true
    end
  end
  options
end

.fetch(git_url) ⇒ Object 



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# File 'lib/gengen.rb', line 67

def fetch(git_url)
  temp_dir = Dir.mktmpdir
  puts "git clone #{git_url} ..."
  if system 'git', 'clone', git_url, temp_dir
    FileUtils.rm_rf(File.join(temp_dir, '.git'))
    temp_dir
  else
    abort "[error] faild to git clone '#{git_url}'!"
  end
end

.gen(args) ⇒ Object 



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# File 'lib/gengen.rb', line 10

def gen(args)
  args = args.dup
  options = extract_otpions!(args)

  local = true if args.delete('-l') || args.delete('--local')

  if local
    git_url = args[0]
  else
    github_project = args[0]
    unless github_project && github_project =~ /^[^\/]+\/[^\/]+$/
      usage!
    end
    github_project += '.gengen' unless github_project =~ /\.gengen$/
    git_url = "https://github.com/#{github_project}.git"
  end

  dest_dir = if args[1]
      args[1]
    else
      print "[directory]: "
      STDIN.gets.strip
    end

  if File.exists?(dest_dir)
    abort "[error] '#{dest_dir}' already exists"
  end

  temp_dir = fetch(git_url)
  process(temp_dir, options)

  FileUtils.mv(temp_dir, dest_dir)
end

.process(dir, vars) ⇒ Object 



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# File 'lib/gengen.rb', line 78

def process(dir, vars)
  Dir[File.join(dir, '**', '*')].each do |filepath|
    next unless File.file?(filepath)

    basename = File.basename(filepath)
    if basename =~ REGEXP
      old_path = filepath
      new_path = File.join File.dirname(filepath), replace(basename, vars)
      puts "renaming... #{old_path.sub(dir + '/', '')} => #{new_path.sub(dir + '/', '')}"
      FileUtils.mv(old_path, new_path)
    end
  end

  Dir[File.join(dir, '**', '*')].each do |filepath|
    next unless File.file?(filepath)

    puts "processing... #{filepath.sub(dir + '/', '')}"
    contents = replace(File.read(filepath), vars)
    File.open(filepath, 'w') do |file|
      file.write contents
    end
  end

  puts 'done!'
end

.replace(text, vars) ⇒ Object 



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# File 'lib/gengen.rb', line 104

def replace(text, vars)
  text.gsub(REGEXP) do |_|
    var_name = $1
    unless vars.key?(var_name)
      print "[#{var_name}]: "
      value = STDIN.gets.strip
      vars[var_name] = value.empty? ? var_name : value
    end
    vars[var_name]
  end
end

.usage! ⇒ Object 



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# File 'lib/gengen.rb', line 44

def usage!
  abort <<-D
Usage:
  gengen user/template [directory] [foo=bar ...]
  gengen --local(-l) git_repository_path [directory] [foo=bar ...]

Examples:
  gengen jugyo/sublime-plugin RubyUtils name=RubyUtils command=test
  gengen -l /path/to/sublime-plugin RubyUtils name=RubyUtils command=test
  D
end