Class: TestMap::Cache

Inherits:
Object
  • Object
show all
Defined in:
lib/test_map/cache.rb

Overview

Cache tracks file checksums to skip unchanged tests.

Constant Summary collapse

GLOBAL_FILES = 
%w[Gemfile.lock .ruby-version].freeze

Instance Method Summary collapse

Constructor Details

#initialize(cache_file, map_file, root: Dir.pwd) ⇒ Cache

Returns a new instance of Cache.



11
12
13
14
15
16
17
18
 
# File 'lib/test_map/cache.rb', line 11

def initialize(cache_file, map_file, root: Dir.pwd)
  @cache_file = cache_file
  @map_file = map_file
  @root = root
  @global_files_changed = nil
  @current_checksums = {}
  @file_exists_cache = {}
end

Instance Method Details

#fresh?(test_file) ⇒ Boolean

Returns:

  • (Boolean) 


20
21
22
23
24
25
26
 
# File 'lib/test_map/cache.rb', line 20

def fresh?(test_file)
  return false unless cached_checksums
  return false if global_files_changed?

  files_to_check = [test_file].concat(source_files_for(test_file))
  files_to_check.all? { |f| file_exist?(f) && current_checksum(f) == cached_checksums[f] }
end

#write(results) ⇒ Object 



28
29
30
31
32
33
34
 
# File 'lib/test_map/cache.rb', line 28

def write(results)
  all_files = collect_tracked_files(results)
  checksums = all_files.each_with_object({}) do |file, hash|
    hash[file] = current_checksum(file) if file_exist?(file)
  end
  File.write(@cache_file, checksums.sort.to_h.to_yaml)
end