Class: CreateRubyGem::Detection::BundlerVersion

Inherits:

Object

• Object
• CreateRubyGem::Detection::BundlerVersion

Defined in:

lib/create_ruby_gem/detection/bundler_version.rb

Overview

Detects the installed Bundler version by running bundle –version.

Constant Summary

VERSION_PATTERN =

/(\d+\.\d+\.\d+)/

Instance Method Summary

• #detect! ⇒ Gem::Version

  Runs bundle –version and parses the result.

• #initialize(bundle_command: 'bundle') ⇒ BundlerVersion constructor

  A new instance of BundlerVersion.

Constructor Details

#initialize(bundle_command: 'bundle') ⇒ BundlerVersion

# File 'lib/create_ruby_gem/detection/bundler_version.rb', line 11

def initialize(bundle_command: 'bundle')
  @bundle_command = bundle_command
end

Instance Method Details

#detect! ⇒ Gem::Version

Runs bundle –version and parses the result.

Raises:

• (UnsupportedBundlerVersionError) —

  if the version cannot be parsed or the executable is not found

# File 'lib/create_ruby_gem/detection/bundler_version.rb', line 20

def detect!
  output = IO.popen([@bundle_command, '--version'], err: i[child out], &:read)
  version = output[VERSION_PATTERN, 1]
  return Gem::Version.new(version) if version

  raise UnsupportedBundlerVersionError, "Cannot parse bundler version from: #{output.inspect}"
rescue Errno::ENOENT
  raise UnsupportedBundlerVersionError, "Bundler executable not found: #{@bundle_command}"
end