Class: StudFinder::JsFanIn

Inherits:
Object
  • Object
show all
Defined in:
lib/stud_finder/js_fan_in.rb

Defined Under Namespace

Classes: Result

Constant Summary collapse

TOOL_MISSING = 
'js_tools_missing'
TIMEOUT = 
'js_depcruise_timeout'
DEPCRUISE_NO_CONFIG = 
'js_depcruise_no_config'
DEPCRUISE_FAILED = 
'js_depcruise_failed'
FALLBACK_SUCCESS_MESSAGE = 
'configured depcruise failed; retried with --no-config; fan_in may be undercounted'

Instance Method Summary collapse

Constructor Details

#initialize(repo_path:, files:, js_timeout: 60, stderr: $stderr) ⇒ JsFanIn

Returns a new instance of JsFanIn.



19
20
21
22
23
24
 
# File 'lib/stud_finder/js_fan_in.rb', line 19

def initialize(repo_path:, files:, js_timeout: 60, stderr: $stderr)
  @repo_path = File.expand_path(repo_path)
  @files = files
  @js_timeout = js_timeout
  @stderr = stderr
end

Instance Method Details

#call ⇒ Object 



26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
 
# File 'lib/stud_finder/js_fan_in.rb', line 26

def call
  return missing_tools unless node_available?

  depcruise = depcruise_binary
  return missing_tools unless depcruise

  stdout, stderr, status, warnings = run_depcruise(depcruise)
  return depcruise_failed(stderr) unless status.success?

  counts, fan_out_counts, edges = parse(stdout)
  warnings.each { |warning| warn(warning.fetch(:code), warning.fetch(:message)) }
  Result.new(counts: counts, fan_out_counts: fan_out_counts, edges: edges, warnings: warnings)
rescue Timeout::Error
  warn(TIMEOUT)
  Result.new(counts: zero_counts, fan_out_counts: zero_counts, edges: empty_edges, warnings: [TIMEOUT])
rescue JSON::ParserError, KeyError, TypeError => e
  depcruise_failed("malformed dependency-cruiser JSON: #{e.message}")
end