module Unravel

# File lib/unravel/exec.rb, line 56
def Capture(args)
  Unravel.logger.debug "  -> Running: #{args.inspect}"
  out, error, status = Open3.capture3(*args)
  return out if status.success?
  Unravel.logger.debug "Errors from #{args.inspect}: -----"
  Unravel.logger.debug "#{error}"
  error = out if error.strip.empty?
  raise Exec::Error::Standard, error
rescue Errno::ENOENT => e
  raise Exec::Error::ENOENT, e.message
end

# File lib/unravel/exec.rb, line 40
def Exec(args)
  Unravel.logger.debug "  -> Running: #{args.inspect}"
  out, error, status = Open3.capture3(*args)
  Unravel.logger.debug "Output from #{args.inspect}: -----"
  Unravel.logger.debug "#{out}"
  return true if status.success?
  Unravel.logger.debug "Errors from #{args.inspect}: -----"
  Unravel.logger.debug "#{error}"

  # TODO: is strip a good idea?
  raise Exec::Error::Silent.new(status.exitstatus, out) if error.strip.empty?
  raise Exec::Error::Standard, error
rescue Errno::ENOENT => e
  raise Exec::Error::ENOENT, e.message
end

# File lib/unravel.rb, line 11
def self.logger
  @@logger ||= Logger.new(STDOUT).tap do |logger|
    logger.level = Logger::DEBUG
    logger.formatter = proc do |severity, datetime, progname, msg|
      "#{severity}: #{msg}\n"
    end
  end
end

# File lib/unravel/exec.rb, line 36
def run(*args)
  Exec(args)
end