class Potassium::NodeVersionEnsurer
Public Instance Methods
ensure!()
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# File lib/potassium/node_version_ensurer.rb, line 3 def ensure! raise VersionError.new(install_message) if installed_node_version.nil? raise VersionError.new(update_message) if Potassium::NODE_VERSION != installed_node_version end
Private Instance Methods
install_message()
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# File lib/potassium/node_version_ensurer.rb, line 15 def install_message <<~HERE Node doesn't appear to be installed. Please make sure you have node #{Potassium::NODE_VERSION} installed. HERE end
installed_node_version()
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# File lib/potassium/node_version_ensurer.rb, line 10 def installed_node_version node_version = `node -v 2>&1` return node_version.delete('^[0-9\.]').split('.').first if $?.success? end
update_message()
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# File lib/potassium/node_version_ensurer.rb, line 22 def update_message <<~HERE An unsupported version of node was found. Please make sure you have node #{Potassium::NODE_VERSION} installed. Newer versions may work but potassium only supports that one. If you really need to run potassium with a different version of node, re-run this command with the `--no-node-version-check` flag. HERE end