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# frozen_string_literal: true
FILE_EXTENSION = ".rb"
MAGIC_COMMENT = "# frozen_string_literal: true"
def get_files_with_no_magic_comment(files)
files.select do |file|
file.end_with?(FILE_EXTENSION) &&
!File.open(file, &:gets)&.start_with?(MAGIC_COMMENT)
end
end
files_to_fix = get_files_with_no_magic_comment(git.added_files)
if files_to_fix.any?
warn 'This merge request adds files that do not enforce frozen string literal. ' \
'See https://gitlab.com/gitlab-org/gitlab-foss/issues/47424 for more information.'
if GitlabDanger.new(helper.gitlab_helper).ci?
markdown(<<~MARKDOWN)
## Enable Frozen String Literal
The following files should have `#{MAGIC_COMMENT}` on the first line:
* #{files_to_fix.map { |path| "`#{path}`" }.join("\n* ")}
MARKDOWN
end
end
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