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# frozen_string_literal: true
module Gitlab
module Ci
module Parsers
module Coverage
class Cobertura
InvalidXMLError = Class.new(Gitlab::Ci::Parsers::ParserError)
InvalidLineInformationError = Class.new(Gitlab::Ci::Parsers::ParserError)
GO_SOURCE_PATTERN = '/usr/local/go/src'
MAX_SOURCES = 100
def parse!(xml_data, coverage_report, project_path: nil, worktree_paths: nil)
root = Hash.from_xml(xml_data)
context = {
project_path: project_path,
paths: worktree_paths&.to_set,
sources: []
}
parse_all(root, coverage_report, context)
rescue Nokogiri::XML::SyntaxError
raise InvalidXMLError, "XML parsing failed"
end
private
def parse_all(root, coverage_report, context)
return unless root.present?
root.each do |key, value|
parse_node(key, value, coverage_report, context)
end
end
def parse_node(key, value, coverage_report, context)
if key == 'sources' && value['source'].present?
parse_sources(value['source'], context)
elsif key == 'package'
Array.wrap(value).each do |item|
parse_package(item, coverage_report, context)
end
elsif key == 'class'
# This means the cobertura XML does not have classes within package nodes.
# This is possible in some cases like in simple JS project structures
# running Jest.
Array.wrap(value).each do |item|
parse_class(item, coverage_report, context)
end
elsif value.is_a?(Hash)
parse_all(value, coverage_report, context)
elsif value.is_a?(Array)
value.each do |item|
parse_all(item, coverage_report, context)
end
end
end
def parse_sources(sources, context)
return unless context[:project_path] && context[:paths]
sources = Array.wrap(sources)
# TODO: Go cobertura has a different format with how their packages
# are included in the filename. So we can't rely on the sources.
# We'll deal with this later.
return if sources.include?(GO_SOURCE_PATTERN)
sources.each do |source|
source = build_source_path(source, context)
context[:sources] << source if source.present?
end
end
def build_source_path(source, context)
# | raw source | extracted |
# |-----------------------------|------------|
# | /builds/foo/test/SampleLib/ | SampleLib/ |
# | /builds/foo/test/something | something |
# | /builds/foo/test/ | nil |
# | /builds/foo/test | nil |
source.split("#{context[:project_path]}/", 2)[1]
end
def parse_package(package, coverage_report, context)
classes = package.dig('classes', 'class')
return unless classes.present?
matched_filenames = Array.wrap(classes).map do |item|
parse_class(item, coverage_report, context)
end
# Remove these filenames from the paths to avoid conflict
# with other packages that may contain the same class filenames
remove_matched_filenames(matched_filenames, context)
end
def remove_matched_filenames(filenames, context)
return unless context[:paths]
filenames.each { |f| context[:paths].delete(f) }
end
def parse_class(file, coverage_report, context)
return unless file["filename"].present? && file["lines"].present?
parsed_lines = parse_lines(file["lines"])
filename = determine_filename(file["filename"], context)
coverage_report.add_file(filename, Hash[parsed_lines]) if filename
filename
end
def parse_lines(lines)
line_array = Array.wrap(lines["line"])
line_array.map do |line|
# Using `Integer()` here to raise exception on invalid values
[Integer(line["number"]), Integer(line["hits"])]
end
rescue
raise InvalidLineInformationError, "Line information had invalid values"
end
def determine_filename(filename, context)
return filename unless context[:sources].any?
full_filename = nil
context[:sources].each_with_index do |source, index|
break if index >= MAX_SOURCES
break if full_filename = check_source(source, filename, context)
end
full_filename
end
def check_source(source, filename, context)
full_path = File.join(source, filename)
return full_path if context[:paths].include?(full_path)
end
end
end
end
end
end
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