FeatureMap.for_file, given a relative path to a file returns a CodeFeatures::Feature if there is a feature assigned to the file, nil otherwise.

Contributor note: If you are making updates to this method or the methods getting used here, please benchmark the performance of the new implementation against the current for both for_files and for_file (with 1, 100, 1000 files).

See feature_map_spec.rb for examples.

Command

FeatureMap.for_file('path/to/file/relative/to/application/root.rb')

Note: There is no command line utility for for_file; this command is available only within the Ruby runtime.