Class: Erbf::CLI

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

Defined Under Namespace

Classes: Error

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ CLI

Returns a new instance of CLI.



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# File 'lib/erbf/cli.rb', line 13

def initialize
  @command = :format
  @files = []
  @input = nil
  @config_path = nil
end

Class Method Details

.call ⇒ Object 



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# File 'lib/erbf/cli.rb', line 9

def self.call(...)
  new.call(...)
end

Instance Method Details

#call(argv, stdin, stdout = $stdout, stderr = $stderr) ⇒ Object 



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# File 'lib/erbf/cli.rb', line 92

def call(argv, stdin, stdout = $stdout, stderr = $stderr)
  parse!(argv, stdin)
  execute(stdout, stderr) ? 0 : 1
rescue Error => e
  stderr.puts "#{e.message}\n\n"
  stderr.puts options
  1
end

#execute(stdout = $stdout, stderr = $stderr) ⇒ Object 



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# File 'lib/erbf/cli.rb', line 50

def execute(stdout = $stdout, stderr = $stderr)
  erbf = Erbf.new(config_file: @config_path)
  case @command
  when :help
    stdout.puts options
    true
  when :version
    stdout.puts Erbf::VERSION
    true
  when :format
    @files.each do |path|
      content = File.read(path)
      stdout.puts erbf.format_code(content)
    end
    stdout.puts erbf.format_code(@input) if @input
    true
  when :check
    success = true
    @files.each do |path|
      original = File.read(path)
      formatted = erbf.format_code(original)
      formatted = "#{formatted}\n"
      next if original == formatted

      stderr.puts "#{path} needs to be formatted"
      success = false
    end
    success
  when :write
    @files.each do |path|
      original = File.read(path)
      formatted = erbf.format_code(original)
      formatted = "#{formatted}\n"
      next if original == formatted

      File.write(path, formatted)
      stdout.puts "Formatted: #{path}"
    end
    true
  end
end

#options ⇒ Object 



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# File 'lib/erbf/cli.rb', line 101

def options
  @options ||=
    OptionParser.new do |opts|
      opts.banner = <<~USAGE
        Usage: erbf [options] [files/directories/glob]

        By default the output is written to stdout

        Output options:

      USAGE
      opts.on("-c", "--check", "Check if the files are formatted") do
        raise Error, "incompatible options: --#{@command} and --check" if @command != :format
        @command = :check
      end
      opts.on("-w", "--write", "Format the files in-place") do
        raise Error, "incompatible options: --#{@command} and --write" if @command != :format
        @command = :write
      end
      opts.separator <<~USAGE

        Other options:

      USAGE
      opts.on("--config PATH", String, "Use a config file at a different location") do |path|
        @config_path = path
      end
      opts.on("-h", "--help", "Show this help") do
        raise Error, "incompatible options: --#{@command} and --help" if @command != :format
        @command = :help
      end
      opts.on("-v", "--version", "Show erbf version") do
        raise Error, "incompatible options: --#{@command} and --version" if @command != :format
        @command = :version
      end
      opts.separator ""
    end
end

#parse!(argv, stdin) ⇒ Object 



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# File 'lib/erbf/cli.rb', line 20

def parse!(argv, stdin)
  argv_left = argv.dup

  begin
    options.parse!(argv_left)
  rescue OptionParser::MissingArgument, OptionParser::InvalidOption => e
    raise Error, e.message
  end

  if @command == :format
    @input = stdin.read if (argv_left.empty? && !stdin.tty?) || argv_left.include?("-")
    argv_left -= ["-"]
  end

  @files =
    argv_left
      .flat_map do |path|
        paths = Dir[path]
        raise Error, "invalid file/directory/glob: #{path}" if paths.empty?

        dirs, files = paths.partition { |p| File.directory?(p) }
        files + dirs.flat_map { |d| Dir["#{d}/**/*.html.erb"] }
      end
      .uniq

  if @input.nil? && @files.empty? && %i[format check write].include?(@command)
    raise Error, "no file/directory/glob specified"
  end
end