mspec/lib/mspec/runner/actions/tagpurge.rb
require 'mspec/runner/actions/filter'
require 'mspec/runner/actions/taglist'
# TagPurgeAction - removes all tags not matching any spec
# descriptions.
class TagPurgeAction < TagListAction
attr_reader :matching
def initialize
@matching = []
@filter = nil
@tags = nil
end
# Prints a banner about purging tags.
def start
print "\nRemoving tags not matching any specs\n\n"
end
# Creates a MatchFilter for all tags.
def load
@filter = nil
@tags = MSpec.read_tags self
desc = @tags.map { |t| t.description }
@filter = MatchFilter.new(nil, *desc) unless desc.empty?
end
# Saves any matching tags
def after(state)
@matching << state.description if self === state.description
end
# Rewrites any matching tags. Prints non-matching tags.
# Deletes the tag file if there were no tags (this cleans
# up empty or malformed tag files).
def unload
if @filter
matched = @tags.select { |t| @matching.any? { |s| s == t.description } }
MSpec.write_tags matched
(@tags - matched).each { |t| print t.description, "\n" }
else
MSpec.delete_tags
end
end
def register
super
MSpec.register :unload, self
end
def unregister
super
MSpec.unregister :unload, self
end
end