Method: Inspec::Resolver#resolve

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

#resolve(deps, top_level = true, seen_items = {}, path_string = "") ⇒ Object

Here deps is an Array of Inspec::Requirement



50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
 
# File 'lib/inspec/dependencies/resolver.rb', line 50

def resolve(deps, top_level = true, seen_items = {}, path_string = "") # rubocop:disable Metrics/AbcSize
  graph = {}
  if top_level
    Inspec::Log.debug("Starting traversal of dependencies #{deps.map(&:to_s)}")
  else
    Inspec::Log.debug("Traversing dependency tree of transitive dependency #{deps.map(&:name)}")
  end

  detect_duplicates(deps, top_level, path_string)
  deps.each do |dep|
    # Calling dep.resolved_source forces a fetch. Handle any airgap chicanery early.
    if Inspec::Config.cached[:airgap]
      begin
        dep.resolved_source
      rescue Inspec::FetcherFailure
        Inspec::Log.debug("Failed to fetch #{dep.name}, falling back to archives if possible")
        retry if fallback_to_archive_on_fetch_failure(dep)
      end
    end

    new_seen_items = seen_items.dup
    new_path_string = if path_string.empty?
                        dep.name
                      else
                        path_string + " -> #{dep.name}"
                      end

    raise Inspec::CyclicDependencyError, "Dependency #{dep} would cause a dependency cycle (#{new_path_string})" if new_seen_items.key?(dep.resolved_source)

    new_seen_items[dep.resolved_source] = true

    unless dep.source_satisfies_spec?
      raise Inspec::UnsatisfiedVersionSpecification, "The profile #{dep.name} from #{dep.resolved_source} has a version #{dep.source_version} which doesn't match #{dep.version_constraints}"
    end

    Inspec::Log.debug("Adding dependency #{dep.name} (#{dep.resolved_source})")
    graph[dep.name] = dep
    unless dep.dependencies.empty?
      resolve(dep.dependencies, false, new_seen_items.dup, new_path_string)
    end
  end

  Inspec::Log.debug("Dependency traversal complete.") if top_level
  graph
end