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Class: Bundler::CLI::Exec

Relationships & Source Files
Inherits: Object
Defined in: lib/bundler/cli/exec.rb

Constant Summary

Class Method Summary

Instance Attribute Summary

Instance Method Summary

Constructor Details

.new(options, args) ⇒ Exec

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# File 'lib/bundler/cli/exec.rb', line 11

def initialize(options, args)
  @options = options
  @cmd = args.shift
  @args = args
  @args << { :close_others => !options.keep_file_descriptors? } unless Bundler.current_ruby.jruby?
end

Instance Attribute Details

#args (readonly)

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# File 'lib/bundler/cli/exec.rb', line 7

attr_reader :options, :args, :cmd

#cmd (readonly)

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# File 'lib/bundler/cli/exec.rb', line 7

attr_reader :options, :args, :cmd

#options (readonly)

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# File 'lib/bundler/cli/exec.rb', line 7

attr_reader :options, :args, :cmd

Instance Method Details

#kernel_exec(*args) (private)

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# File 'lib/bundler/cli/exec.rb', line 40

def kernel_exec(*args)
  Kernel.exec(*args)
rescue Errno::EACCES, Errno::ENOEXEC
  Bundler.ui.error "bundler: not executable: #{cmd}"
  exit 126
rescue Errno::ENOENT
  Bundler.ui.error "bundler: command not found: #{cmd}"
  Bundler.ui.warn "Install missing gem executables with `bundle install`"
  exit 127
end

#kernel_load(file, *args) (private)

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# File 'lib/bundler/cli/exec.rb', line 51

def kernel_load(file, *args)
  args.pop if args.last.is_a?(Hash)
  ARGV.replace(args)
  $0 = file
  Process.setproctitle(process_title(file, args)) if Process.respond_to?(:setproctitle)
  require_relative "../setup"
  TRAPPED_SIGNALS.each {|s| trap(s, "DEFAULT") }
  Kernel.load(file)
rescue SystemExit, SignalException
  raise
rescue Exception # rubocop:disable Lint/RescueException
  Bundler.ui.error "bundler: failed to load command: #{cmd} (#{file})"
  Bundler::FriendlyErrors.disable!
  raise
end

#process_title(file, args) (private)

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# File 'lib/bundler/cli/exec.rb', line 67

def process_title(file, args)
  "#{file} #{args.join(" ")}".strip
end

#ruby_shebang?(file) ⇒ Boolean (private)

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# File 'lib/bundler/cli/exec.rb', line 71

def ruby_shebang?(file)
  possibilities = [
    "#!/usr/bin/env ruby\n",
    "#!/usr/bin/env jruby\n",
    "#!/usr/bin/env truffleruby\n",
    "#!#{Gem.ruby}\n",
  ]

  if File.zero?(file)
    Bundler.ui.warn "#{file} is empty"
    return false
  end

  first_line = File.open(file, "rb") {|f| f.read(possibilities.map(&:size).max) }
  possibilities.any? {|shebang| first_line.start_with?(shebang) }
end

#run

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# File 'lib/bundler/cli/exec.rb', line 18

def run
  validate_cmd!
  SharedHelpers.set_bundle_environment
  if bin_path = Bundler.which(cmd)
    if !Bundler.settings[:disable_exec_load] && ruby_shebang?(bin_path)
      return kernel_load(bin_path, *args)
    end
    kernel_exec(bin_path, *args)
  else
    # exec using the given command
    kernel_exec(cmd, *args)
  end
end

#validate_cmd! (private)

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# File 'lib/bundler/cli/exec.rb', line 34

def validate_cmd!
  return unless cmd.nil?
  Bundler.ui.error "bundler: exec needs a command to run"
  exit 128
end