Class: Envo::Cli::InstallerWinCmd

Inherits:
Object
  • Object
show all
Defined in:
lib/envo/cli/installer_win_cmd.rb

Constant Summary collapse

ENVO_RUN_CMD = 
"envo_run"
INSTALL_FILE = 
"envo.bat"
SOURCE_FILE = 
"envo.bat"
USAGE = 
"usage: envo-install [u] [--path <path>]\n"

Instance Method Summary collapse

Instance Method Details

#each_path_dir ⇒ Object 



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# File 'lib/envo/cli/installer_win_cmd.rb', line 4

def each_path_dir
  ENV["Path"].split(';').each { |p| yield p }
end

#run(argv) ⇒ Object 



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# File 'lib/envo/cli/installer_win_cmd.rb', line 55

def run(argv)
  if argv.empty?
    try_install(nil)
    return 0
  end

  if argv[0] == '--help' || argv[0] == '-?'
    puts "installer for envo v#{Envo::VERSION} #{Envo::VERSION_TYPE}"
    puts USAGE
    puts
    puts '             u - uninstall envo'
    puts ' --path <path> - install to or uninstall form a specified directory'
    return 0
  end

  if argv[0] == 'u'
    @uninstalling = true
    argv.shift
  end

  path = nil
  if !argv.empty?
    arg = argv.shift
    if arg != '--path'
      STDERR.puts "Unknown argument #{arg}"
      STDERR.puts USAGE
      return 1
    end
    if argv.empty?
      STDERR.puts "Missing path"
      STDERR.puts USAGE
      return 1
    end
    path = argv.shift
  end

  @uninstalling ? try_uninstall(path) : try_install(path)
  return 0
end

#try_install(path) ⇒ Object

Raises:



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# File 'lib/envo/cli/installer_win_cmd.rb', line 12

def try_install(path)
  if !path
    each_path_dir do |dir|
      if File.file?(File.join(dir, ENVO_RUN_CMD))
        path = dir
        break
      end
    end
    raise Error.new("Couldn't find a good place to install envo. Please use '--path <path>' to provide one") if !path
  end
  raise Error.new("'#{path}' is not an existing directory") if !File.directory?(path)

  src = File.read(File.join(__dir__, SOURCE_FILE))
  target = File.join(path, INSTALL_FILE)
  File.open(target, 'w') do |f|
    f.puts ":: envo #{VERSION}"
    f.write(src)
  end
  puts "Successfully installed #{target}"
end

#try_uninstall(path) ⇒ Object 



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# File 'lib/envo/cli/installer_win_cmd.rb', line 33

def try_uninstall(path)
  if path
    file = File.join(path, INSTALL_FILE)
    raise Error.new "Couldn't find an existing envo installation in #{path}" if !File.file?(file)
    File.delete(file)
    puts "Sucessfully uninstalled #{file}"
    return
  else
    each_path_dir do |dir|
      file = File.join(dir, INSTALL_FILE)
      next if !File.file?(file)
      File.delete(file)
      puts "Sucessfully uninstalled #{file}"
      return
    end
  end
  raise Error.new "Couldn't find an existing envo installation to uninstall"
end