method
validate_dependencies
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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 2919 def validate_dependencies # :nodoc: # NOTE: see REFACTOR note in Gem::Dependency about types - this might be brittle seen = Gem::Dependency::TYPES.inject({}) { |types, type| types.merge({ type => {}}) } error_messages = [] warning_messages = [] dependencies.each do |dep| if prev = seen[dep.type][dep.name] then error_messages << duplicate dependency on #{dep}, (#{prev.requirement}) use: add_#{dep.type}_dependency '#{dep.name}', '#{dep.requirement}', '#{prev.requirement}' end seen[dep.type][dep.name] = dep prerelease_dep = dep.requirements_list.any? do |req| Gem::Requirement.new(req).prerelease? end warning_messages << "prerelease dependency on #{dep} is not recommended" if prerelease_dep && !version.prerelease? overly_strict = dep.requirement.requirements.length == 1 && dep.requirement.requirements.any? do |op, version| op == '~>' and not version.prerelease? and version.segments.length > 2 and version.segments.first != 0 end if overly_strict then _, dep_version = dep.requirement.requirements.first base = dep_version.segments.first 2 warning_messages << 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_messages << 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 if error_messages.any? raise Gem::InvalidSpecificationException, error_messages.join end if warning_messages.any? warning_messages.each { |warning_message| warning warning_message } end end