Class: Wip::CommandResolver

Inherits:
Object
  • Object
show all
Defined in:
lib/wip/command_resolver.rb

Overview

Locates an executable on the current system, trying a list of candidates.

Constant Summary collapse

CANDIDATES = 
['wslc.exe', 'wslc', '/mnt/c/Windows/System32/wslc.exe'].freeze
DEFAULT_INSTALL_HINT = 
<<~HINT.chomp
  Install or update the WSL container tooling, then run:

    wip doctor
HINT

Instance Method Summary collapse

Constructor Details

#initialize(path: ENV.fetch('PATH', ''), executable: nil, candidates: CANDIDATES, label: 'WSLC', install_hint: DEFAULT_INSTALL_HINT) ⇒ CommandResolver

Returns a new instance of CommandResolver.



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# File 'lib/wip/command_resolver.rb', line 13

def initialize(path: ENV.fetch('PATH', ''), executable: nil, candidates: CANDIDATES, label: 'WSLC',
               install_hint: DEFAULT_INSTALL_HINT)
  @path = path
  @executable = executable || method(:executable?)
  @candidates = candidates
  @label = label
  @install_hint = install_hint
end

Instance Method Details

#resolve(configured = 'auto') ⇒ Object 



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# File 'lib/wip/command_resolver.rb', line 22

def resolve(configured = 'auto')
  return configured if configured != 'auto' && @executable.call(configured)
  return raise_not_found([configured]) if configured != 'auto'

  @candidates.find { |candidate| @executable.call(candidate) } || raise_not_found(@candidates)
end