class Overcommit::Hook::PreCommit::ScssLint

Runs `scss-lint` against any modified SCSS files.

@see github.com/sds/scss-lint

Public Instance Methods

run() click to toggle source
# File lib/overcommit/hook/pre_commit/scss_lint.rb, line 8
def run
  result = execute(command, args: applicable_files)

  # Status code 81 indicates the applicable files were all filtered by
  # exclusions defined by the configuration. In this case, we're happy to
  # return success since there were technically no lints.
  return :pass if [0, 81].include?(result.status)

  # Any status that isn't indicating lint warnings or errors indicates failure
  return :fail, (result.stdout + result.stderr) unless [1, 2].include?(result.status)

  begin
    collect_lint_messages(JSON.parse(result.stdout))
  rescue JSON::ParserError => ex
    return :fail, "Unable to parse JSON returned by SCSS-Lint: #{ex.message}\n" \
                  "STDOUT: #{result.stdout}\nSTDERR: #{result.stderr}"
  end
end

Private Instance Methods

collect_lint_messages(files_to_lints) click to toggle source
# File lib/overcommit/hook/pre_commit/scss_lint.rb, line 29
def collect_lint_messages(files_to_lints)
  files_to_lints.flat_map do |path, lints|
    lints.map do |lint|
      severity = lint['severity'] == 'warning' ? :warning : :error

      message = lint['reason']
      message = "#{lint['linter']}: #{message}" if lint['linter']
      message = "#{path}:#{lint['line']} #{message}"

      Overcommit::Hook::Message.new(severity, path, lint['line'], message)
    end
  end
end