class OctocatalogDiff::CatalogDiff::Filter::YAML

Filter based on equivalence of YAML objects for file resources with named extensions.

Public Instance Methods

filtered?(diff, _options = {}) click to toggle source

Public: Actually do the comparison of YAML objects for appropriate resources. Return true if the YAML objects are known to be equivalent. Return false if they are not equivalent, or if equivalence cannot be determined.

@param diff_in [OctocatalogDiff::API::V1::Diff] Difference @param _options [Hash] Additional options (there are none for this filter) @return [Boolean] true if this difference is a YAML file with identical objects, false otherwise

# File lib/octocatalog-diff/catalog-diff/filter/yaml.rb, line 19
def filtered?(diff, _options = {})
  # Skip additions or removals - focus only on changes
  return false unless diff.change?

  # Make sure we are comparing file content for a file ending in .yaml or .yml extension
  return false unless diff.type == 'File' && diff.structure == %w(parameters content)
  return false unless diff.title =~ /\.ya?ml\z/

  # Attempt to convert the old value and new value into YAML objects. Assuming
  # that doesn't error out, the return value is whether or not they're equal.
  obj_old = ::YAML.load(diff.old_value)
  obj_new = ::YAML.load(diff.new_value)
  obj_old == obj_new
rescue # Rescue everything - if something failed, we aren't sure what's going on, so we'll return false.
  false
end