Method: Inspec::Resolver#fallback_to_archive_on_fetch_failure

Defined in:
lib/inspec/dependencies/resolver.rb

#fallback_to_archive_on_fetch_failure(dep) ⇒ Object 



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# File 'lib/inspec/dependencies/resolver.rb', line 96

def fallback_to_archive_on_fetch_failure(dep)
  # This facility is intended to handle situations in which
  # the failing dependency *is* available in an archive that we have
  # available as a local dependency. We just need to find the archive and
  # alter the fetcher to refer to information in the archive.
  # Note that the vendor cache already should have the archive inflated
  # for this to work (see warm_cache_from_archives() from profile_vendor.rb)
  # Refs 4727

  # This is where any existing archives should have been inflated -
  # that is, this is the vendor cache. Each archive would have a lockfile.
  cache_path = dep.cache.path
  worth_retrying = false

  Dir["#{cache_path}/*/inspec.lock"].each do |lockfile_path|
    lockfile = Inspec::Lockfile.from_file(lockfile_path)
    dep_set = Inspec::DependencySet.from_lockfile(lockfile, dep.opts)
    dep2 = dep_set.dep_list[dep.name]
    next unless dep2

    if dep.opts.key?(:compliance)
      # This is ugly. The compliance fetcher works differently than the others,
      # and fails at the resolve stage, not the fetch stage. That means we can't
      # tweak the fetcher, we have to tweak the deps opts themselves.
      dep.opts[:sha256] = dep2.opts[:sha256]
      worth_retrying = true
    else
      # All other fetchers can be generalized, because they will survive their constructor.
      fetcher = dep.fetcher.fetcher # Not the CachedFetcher, but its fetcher
      made_a_change = fetcher.update_from_opts(dep2.opts)
    end
    worth_retrying ||= made_a_change
  end
  worth_retrying
end