Class: RBS::CLI

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

Defined Under Namespace

Classes: LibraryOptions

Constant Summary collapse

COMMANDS = 
[:ast, :list, :ancestors, :methods, :method, :validate, :constant, :paths, :prototype, :vendor, :parse]

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(stdout:, stderr:) ⇒ CLI

Returns a new instance of CLI.



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# File 'lib/rbs/cli.rb', line 34

def initialize(stdout:, stderr:)
  @stdout = stdout
  @stderr = stderr
end

Instance Attribute Details

#stderr ⇒ Object (readonly)

Returns the value of attribute stderr.



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# File 'lib/rbs/cli.rb', line 32

def stderr
  @stderr
end

#stdout ⇒ Object (readonly)

Returns the value of attribute stdout.



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# File 'lib/rbs/cli.rb', line 31

def stdout
  @stdout
end

Instance Method Details

#has_parser? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rbs/cli.rb', line 69

def has_parser?
  defined?(RubyVM::AbstractSyntaxTree)
end

#library_parse(opts, options:) ⇒ Object 



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# File 'lib/rbs/cli.rb', line 41

def library_parse(opts, options:)
  opts.on("-r LIBRARY", "Load RBS files of the library") do |lib|
    options.libs << lib
  end

  opts.on("-I DIR", "Load RBS files from the directory") do |dir|
    options.dirs << dir
  end

  opts.on("--no-stdlib", "Skip loading standard library signatures") do
    options.no_stdlib = true
  end

  opts
end

#parse_logging_options(opts) ⇒ Object 



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# File 'lib/rbs/cli.rb', line 57

def parse_logging_options(opts)
  opts.on("--log-level LEVEL", "Specify log level (defaults to `warn`)") do |level|
    RBS.logger_level = level
  end

  opts.on("--log-output OUTPUT", "Specify the file to output log (defaults to stderr)") do |output|
    RBS.logger_output = File.open(output, "a")
  end

  opts
end

#parse_type_name(string) ⇒ Object 



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# File 'lib/rbs/cli.rb', line 744

def parse_type_name(string)
  Namespace.parse(string).yield_self do |namespace|
    last = namespace.path.last
    TypeName.new(name: last, namespace: namespace.parent)
  end
end

#run(args) ⇒ Object 



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# File 'lib/rbs/cli.rb', line 73

def run(args)
  options = LibraryOptions.new

  opts = OptionParser.new
  opts.banner = <<~USAGE
    Usage: rbs [options...] [command...]

    Available commands: #{COMMANDS.join(", ")}, version, help.

    Options:
  USAGE
  library_parse(opts, options: options)
  parse_logging_options(opts)
  opts.version = RBS::VERSION

  opts.order!(args)

  command = args.shift&.to_sym

  case command
  when :version
    stdout.puts opts.ver
  when *COMMANDS
    __send__ :"run_#{command}", args, options
  else
    stdout.puts opts.help
  end
end

#run_ancestors(args, options) ⇒ Object 



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# File 'lib/rbs/cli.rb', line 202

def run_ancestors(args, options)
  kind = :instance

  OptionParser.new do |opts|
    opts.banner = <<EOU
Usage: rbs ancestors [options...] [type_name]

Show ancestors of the given class or module.

Examples:

  $ rbs ancestors --instance String
  $ rbs ancestors --singleton Array

Options:
EOU
    opts.on("--instance", "Ancestors of instance of the given type_name (default)") { kind = :instance }
    opts.on("--singleton", "Ancestors of singleton of the given type_name") { kind = :singleton }
  end.order!(args)

  loader = EnvironmentLoader.new()
  options.setup(loader)

  env = Environment.from_loader(loader).resolve_type_names

  builder = DefinitionBuilder.new(env: env)
  type_name = parse_type_name(args[0]).absolute!

  if env.class_decls.key?(type_name)
    ancestors = case kind
                when :instance
                  builder.instance_ancestors(type_name)
                when :singleton
                  builder.singleton_ancestors(type_name)
                end

    ancestors.ancestors.each do |ancestor|
      case ancestor
      when Definition::Ancestor::Singleton
        stdout.puts "singleton(#{ancestor.name})"
      when Definition::Ancestor::Instance
        if ancestor.args.empty?
          stdout.puts ancestor.name.to_s
        else
          stdout.puts "#{ancestor.name}[#{ancestor.args.join(", ")}]"
        end
      end
    end
  else
    stdout.puts "Cannot find class: #{type_name}"
  end
end

#run_ast(args, options) ⇒ Object 



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# File 'lib/rbs/cli.rb', line 102

def run_ast(args, options)
  OptionParser.new do |opts|
    opts.banner = <<EOB
Usage: rbs ast [patterns...]

Print JSON AST of loaded environment.
You can specify patterns to filter declarations with the file names.

Examples:

  $ rbs ast
  $ rbs ast 'basic_object.rbs'
  $ rbs -I ./sig ast ./sig
  $ rbs -I ./sig ast '*/models/*.rbs'
EOB
  end.order!(args)

  patterns = args.map do |arg|
    path = Pathname(arg)
    if path.exist?
      # Pathname means a directory or a file
      path
    else
      # String means a `fnmatch` pattern
      arg
    end
  end

  loader = EnvironmentLoader.new()
  options.setup(loader)

  env = Environment.from_loader(loader).resolve_type_names

  decls = env.declarations.select do |decl|
    name = decl.location.buffer.name

    patterns.empty? || patterns.any? do |pat|
      case pat
      when Pathname
        Pathname(name).ascend.any? {|p| p == pat }
      when String
        name.end_with?(pat) || File.fnmatch(pat, name, File::FNM_EXTGLOB)
      end
    end
  end

  stdout.print JSON.generate(decls)
  stdout.flush
end

#run_constant(args, options) ⇒ Object 



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# File 'lib/rbs/cli.rb', line 429

def run_constant(args, options)
  context = nil

  OptionParser.new do |opts|
    opts.banner = <<EOU
Usage: rbs constant [options...] [name]

Resolve constant based on RBS.

Examples:

  $ rbs constant ::Object
  $ rbs constant UTF_8
  $ rbs constant --context=::Encoding UTF_8

Options:
EOU
    opts.on("--context CONTEXT", "Name of the module where the constant resolution starts") {|c| context = c }
  end.order!(args)

  unless args.size == 1
    stdout.puts "Expected one argument."
    return
  end

  loader = EnvironmentLoader.new()

  options.setup(loader)

  env = Environment.from_loader(loader).resolve_type_names

  builder = DefinitionBuilder.new(env: env)
  table = ConstantTable.new(builder: builder)

  namespace = context ? Namespace.parse(context).absolute! : Namespace.root
  stdout.puts "Context: #{namespace}"
  name = Namespace.parse(args[0]).to_type_name
  stdout.puts "Constant name: #{name}"

  constant = table.resolve_constant_reference(name, context: namespace.ascend.to_a)

  if constant
    stdout.puts " => #{constant.name}: #{constant.type}"
  else
    stdout.puts " => [no constant]"
  end
end

#run_list(args, options) ⇒ Object 



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# File 'lib/rbs/cli.rb', line 152

def run_list(args, options)
  list = Set[]

  OptionParser.new do |opts|
    opts.banner = <<EOB
Usage: rbs list [options...]

List classes, modules, and interfaces.

Examples:

  $ rbs list
  $ rbs list --class --module --interface

Options:
EOB
    opts.on("--class", "List classes") { list << :class }
    opts.on("--module", "List modules") { list << :module }
    opts.on("--interface", "List interfaces") { list << :interface }
  end.order!(args)

  list.merge([:class, :module, :interface]) if list.empty?

  loader = EnvironmentLoader.new()
  options.setup(loader)

  env = Environment.from_loader(loader).resolve_type_names

  if list.include?(:class) || list.include?(:module)
    env.class_decls.each do |name, entry|
      case entry
      when Environment::ModuleEntry
        if list.include?(:module)
          stdout.puts "#{name} (module)"
        end
      when Environment::ClassEntry
        if list.include?(:class)
          stdout.puts "#{name} (class)"
        end
      end
    end
  end

  if list.include?(:interface)
    env.interface_decls.each do |name, entry|
      stdout.puts "#{name} (interface)"
    end
  end
end

#run_method(args, options) ⇒ Object 



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# File 'lib/rbs/cli.rb', line 309

def run_method(args, options)
  kind = :instance

  OptionParser.new do |opts|
    opts.banner = <<EOU
Usage: rbs method [options...] [type_name] [method_name]

Show the information of the method specified by type_name and method_name.

Examples:

  $ rbs method --instance Kernel puts
  $ rbs method --singleton String try_convert

Options:
EOU
    opts.on("--instance", "Show an instance method (default)") { kind = :instance }
    opts.on("--singleton", "Show a singleton method") { kind = :singleton }
  end.order!(args)

  unless args.size == 2
    stdout.puts "Expected two arguments, but given #{args.size}."
    return
  end

  loader = EnvironmentLoader.new()
  options.setup(loader)

  env = Environment.from_loader(loader).resolve_type_names

  builder = DefinitionBuilder.new(env: env)
  type_name = parse_type_name(args[0]).absolute!
  method_name = args[1].to_sym

  unless env.class_decls.key?(type_name)
    stdout.puts "Cannot find class: #{type_name}"
    return
  end

  definition = case kind
               when :instance
                 builder.build_instance(type_name)
               when :singleton
                 builder.build_singleton(type_name)
               end

  method = definition.methods[method_name]

  unless method
    stdout.puts "Cannot find method: #{method_name}"
    return
  end

  stdout.puts "#{type_name}#{kind == :instance ? "#" : "."}#{method_name}"
  stdout.puts "  defined_in: #{method.defined_in}"
  stdout.puts "  implementation: #{method.implemented_in}"
  stdout.puts "  accessibility: #{method.accessibility}"
  stdout.puts "  types:"
  separator = " "
  for type in method.method_types
    stdout.puts "    #{separator} #{type}"
    separator = "|"
  end
end

#run_methods(args, options) ⇒ Object 



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# File 'lib/rbs/cli.rb', line 255

def run_methods(args, options)
  kind = :instance
  inherit = true

  OptionParser.new do |opts|
    opts.banner = <<EOU
Usage: rbs methods [options...] [type_name]

Show methods defined in the class or module.

Examples:

  $ rbs methods --instance Kernel
  $ rbs methods --singleton --no-inherit String

Options:
EOU
    opts.on("--instance", "Show instance methods (default)") { kind = :instance }
    opts.on("--singleton", "Show singleton methods") { kind = :singleton }
    opts.on("--[no-]inherit", "Show methods defined in super class and mixed modules too") {|v| inherit = v }
  end.order!(args)

  unless args.size == 1
    stdout.puts "Expected one argument."
    return
  end

  loader = EnvironmentLoader.new()
  options.setup(loader)

  env = Environment.from_loader(loader).resolve_type_names

  builder = DefinitionBuilder.new(env: env)
  type_name = parse_type_name(args[0]).absolute!

  if env.class_decls.key?(type_name)
    definition = case kind
                 when :instance
                   builder.build_instance(type_name)
                 when :singleton
                   builder.build_singleton(type_name)
                 end

    definition.methods.keys.sort.each do |name|
      method = definition.methods[name]
      if inherit || method.implemented_in == type_name
        stdout.puts "#{name} (#{method.accessibility})"
      end
    end
  else
    stdout.puts "Cannot find class: #{type_name}"
  end
end

#run_parse(args, options) ⇒ Object 



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# File 'lib/rbs/cli.rb', line 710

def run_parse(args, options)
  OptionParser.new do |opts|
    opts.banner = <<-EOB
Usage: rbs parse [files...]

Parse given RBS files and print syntax errors.

Examples:

  $ rbs parse sig/app/models.rbs sig/app/controllers.rbs
    EOB
  end.parse!(args)

  loader = EnvironmentLoader.new()

  syntax_error = false
  args.each do |path|
    path = Pathname(path)
    loader.each_signature(path) do |sig_path|
      Parser.parse_signature(sig_path.read)
    rescue RBS::Parser::SyntaxError => ex
      loc = ex.error_value.location
      stdout.puts "#{sig_path}:#{loc.start_line}:#{loc.start_column}: parse error on value: (#{ex.token_str})"
      syntax_error = true
    rescue RBS::Parser::SemanticsError => ex
      loc = ex.location
      stdout.puts "#{sig_path}:#{loc.start_line}:#{loc.start_column}: #{ex.original_message}"
      syntax_error = true
    end
  end

  exit 1 if syntax_error
end

#run_paths(args, options) ⇒ Object 



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# File 'lib/rbs/cli.rb', line 477

def run_paths(args, options)
  OptionParser.new do |opts|
    opts.banner = <<EOU
Usage: rbs paths

Show paths to directories where the RBS files are loaded from.

Examples:

  $ rbs paths
  $ tbs -r set paths
EOU
  end.parse!(args)

  loader = EnvironmentLoader.new()

  options.setup(loader)

  kind_of = -> (path) {
    case
    when path.file?
      "file"
    when path.directory?
      "dir"
    when !path.exist?
      "absent"
    else
      "unknown"
    end
  }

  if loader.stdlib_root
    path = loader.stdlib_root
    stdout.puts "#{path}/builtin (#{kind_of[path]}, stdlib)"
  end

  loader.paths.each do |path|
    case path
    when Pathname
      stdout.puts "#{path} (#{kind_of[path]})"
    when EnvironmentLoader::GemPath
      stdout.puts "#{path.path} (#{kind_of[path.path]}, gem, name=#{path.name}, version=#{path.version})"
    when EnvironmentLoader::LibraryPath
      stdout.puts "#{path.path} (#{kind_of[path.path]}, library, name=#{path.name})"
    end
  end
end

#run_prototype(args, options) ⇒ Object 



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# File 'lib/rbs/cli.rb', line 525

def run_prototype(args, options)
  format = args.shift

  case format
  when "rbi", "rb"
    decls = run_prototype_file(format, args)
  when "runtime"
    require_libs = []
    relative_libs = []
    merge = false
    owners_included = []

    OptionParser.new do |opts|
      opts.banner = <<EOU
Usage: rbs prototype runtime [options...] [pattern...]

Generate RBS prototype based on runtime introspection.
It loads Ruby code specified in [options] and generates RBS prototypes for classes matches to [pattern]. 

Examples:

  $ rbs prototype runtime String
  $ rbs prototype runtime --require set Set
  $ rbs prototype runtime -R lib/rbs RBS::*

Options:
EOU
      opts.on("-r", "--require LIB", "Load library using `require`") do |lib|
        require_libs << lib
      end
      opts.on("-R", "--require-relative LIB", "Load library using `require_relative`") do |lib|
        relative_libs << lib
      end
      opts.on("--merge", "Merge generated prototype RBS with existing RBS") do
        merge = true
      end
      opts.on("--method-owner CLASS", "Generate method prototypes if the owner of the method is [CLASS]") do |klass|
        owners_included << klass
      end
    end.parse!(args)

    loader = EnvironmentLoader.new()

    options.setup(loader)

    env = Environment.from_loader(loader).resolve_type_names

    require_libs.each do |lib|
      require(lib)
    end

    relative_libs.each do |lib|
      eval("require_relative(lib)", binding, "rbs")
    end

    decls = Prototype::Runtime.new(patterns: args, env: env, merge: merge, owners_included: owners_included).decls
  else
    stdout.puts <<EOU
Usage: rbs prototype [generator...] [args...]

Generate prototype of RBS files.
Supported generators are rb, rbi, runtime.

Examples:

  $ rbs prototype rb foo.rb
  $ rbs prototype rbi foo.rbi
  $ rbs prototype runtime String
EOU
    exit 1
  end

  if decls
    writer = Writer.new(out: stdout)
    writer.write decls
  else
    exit 1
  end
end

#run_prototype_file(format, args) ⇒ Object 



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# File 'lib/rbs/cli.rb', line 605

def run_prototype_file(format, args)
  availability = unless has_parser?
                   "\n** This command does not work on this interpreter (#{RUBY_ENGINE}) **\n"
                 end

  opts = OptionParser.new
  opts.banner = <<EOU
Usage: rbs prototype #{format} [options...] [files...]
#{availability}
Generate RBS prototype from source code.
It parses specified Ruby code and and generates RBS prototypes.

It only works on MRI because it parses Ruby code with `RubyVM::AbstractSyntaxTree`.

Examples:

  $ rbs prototype rb lib/foo.rb
  $ rbs prototype rbi sorbet/rbi/foo.rbi
EOU
  opts.parse!(args)

  unless has_parser?
    stdout.puts "Not supported on this interpreter (#{RUBY_ENGINE})."
    exit 1
  end

  if args.empty?
    stdout.puts opts
    return nil
  end

  parser = case format
           when "rbi"
             Prototype::RBI.new()
           when "rb"
             Prototype::RB.new()
           end

  args.each do |file|
    parser.parse Pathname(file).read
  end

  parser.decls
end

#run_validate(args, options) ⇒ Object 



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# File 'lib/rbs/cli.rb', line 374

def run_validate(args, options)
  OptionParser.new do |opts|
    opts.banner = <<EOU
Usage: rbs validate

Validate RBS files. It ensures the type names in RBS files are present and the type applications have correct arity.

Examples:

  $ rbs validate
EOU
  end.parse!(args)

  loader = EnvironmentLoader.new()

  options.setup(loader)

  env = Environment.from_loader(loader).resolve_type_names

  builder = DefinitionBuilder.new(env: env)
  validator = Validator.new(env: env, resolver: TypeNameResolver.from_env(env))

  env.class_decls.each_key do |name|
    stdout.puts "Validating class/module definition: `#{name}`..."
    builder.build_instance(name).each_type do |type|
      validator.validate_type type, context: [Namespace.root]
    end
    builder.build_singleton(name).each_type do |type|
      validator.validate_type type, context: [Namespace.root]
    end
  end

  env.interface_decls.each_key do |name|
    stdout.puts "Validating interface: `#{name}`..."
    builder.build_interface(name).each_type do |type|
      validator.validate_type type, context: [Namespace.root]
    end
  end

  env.constant_decls.each do |name, const|
    stdout.puts "Validating constant: `#{name}`..."
    validator.validate_type const.decl.type, context: const.context
  end

  env.global_decls.each do |name, global|
    stdout.puts "Validating global: `#{name}`..."
    validator.validate_type global.decl.type, context: [Namespace.root]
  end

  env.alias_decls.each do |name, decl|
    stdout.puts "Validating alias: `#{name}`..."
    validator.validate_type decl.decl.type, context: decl.context
  end
end

#run_vendor(args, options) ⇒ Object 



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# File 'lib/rbs/cli.rb', line 650

def run_vendor(args, options)
  clean = false
  vendor_stdlib = false
  vendor_dir = Pathname("vendor/sigs")

  OptionParser.new do |opts|
    opts.banner = <<-EOB
Usage: rbs vendor [options...] [gems...]

Vendor signatures in the project directory.
This command ignores the RBS loading global options, `-r` and `-I`.

Examples:

  $ rbs vendor
  $ rbs vendor --vendor-dir=sig
  $ rbs vendor --no-stdlib

Options:
    EOB

    opts.on("--[no-]clean", "Clean vendor directory (default: no)") do |v|
      clean = v
    end

    opts.on("--[no-]stdlib", "Vendor stdlib signatures or not (default: no)") do |v|
      vendor_stdlib = v
    end

    opts.on("--vendor-dir [DIR]", "Specify the directory for vendored signatures (default: vendor/sigs)") do |path|
      vendor_dir = Pathname(path)
    end
  end.parse!(args)

  stdout.puts "Vendoring signatures to #{vendor_dir}..."

  vendorer = Vendorer.new(vendor_dir: vendor_dir)

  if clean
    stdout.puts "  Deleting #{vendor_dir}..."
    vendorer.clean!
  end

  if vendor_stdlib
    stdout.puts "  Vendoring standard libraries..."
    vendorer.stdlib!
  end

  args.each do |gem|
    name, version = EnvironmentLoader.parse_library(gem)

    unless EnvironmentLoader.gem_sig_path(name, version)
      stdout.puts "  ⚠️ Cannot find rubygem: name=#{name}, version=#{version} 🚨"
    else
      stdout.puts "  Vendoring gem: name=#{name}, version=#{version}..."
      vendorer.gem!(name, version)
    end
  end
end