method

validate_dependencies

v2_1_10 - Show latest stable - 0 notes - Class: Specification

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validate_dependencies() public

Checks that dependencies use requirements as we recommend. Warnings are issued when dependencies are open-ended or overly strict for semantic versioning.

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# File lib/rubygems/specification.rb, line 2602
  def validate_dependencies # :nodoc:
    seen = {}

    dependencies.each do |dep|
      if prev = seen[dep.name] then
        raise Gem::InvalidSpecificationException, duplicate dependency on #{dep}, (#{prev.requirement}) use:    add_runtime_dependency '#{dep.name}', '#{dep.requirement}', '#{prev.requirement}'
      end

      seen[dep.name] = dep

      prerelease_dep = dep.requirements_list.any? do |req|
        Gem::Requirement.new(req).prerelease?
      end

      warning "prerelease dependency on #{dep} is not recommended" if
        prerelease_dep

      overly_strict = dep.requirement.requirements.length == 1 &&
        dep.requirement.requirements.any? do |op, version|
          op == '~>' and
            not version.prerelease? and
            version.segments.length > 2
        end

      if overly_strict then
        _, dep_version = dep.requirement.requirements.first

        base = dep_version.segments.first 2

        warning pessimistic dependency on #{dep} may be overly strict  if #{dep.name} is semantically versioned, use:    add_#{dep.type}_dependency '#{dep.name}', '~> #{base.join '.'}', '>= #{dep_version}'
      end

      open_ended = dep.requirement.requirements.all? do |op, version|
        not version.prerelease? and (op == '>' or op == '>=')
      end

      if open_ended then
        op, dep_version = dep.requirement.requirements.first

        base = dep_version.segments.first 2

        bugfix = if op == '>' then
                   ", '> #{dep_version}'"
                 elsif op == '>=' and base != dep_version.segments then
                   ", '>= #{dep_version}'"
                 end

        warning open-ended dependency on #{dep} is not recommended  if #{dep.name} is semantically versioned, use:    add_#{dep.type}_dependency '#{dep.name}', '~> #{base.join '.'}'#{bugfix}
      end
    end
  end

validate_dependencies

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