Env builds an ENV Dockerfile instruction from the mapping m.

FindAll returns the indices of all children of node such that node.Children[i].Value == cmd.

From builds a FROM Dockerfile instruction referring the base image image.

InsertInstructions inserts instructions starting from the pos-th child of node, moving other children as necessary.

Label builds a LABEL Dockerfile instruction from the mapping m.

LastBaseImage takes a Dockerfile root node and returns the base image declared in the last FROM instruction.

LastExposedPorts takes a Dockerfile root node and returns a list of ports exposed in the last image built by the Dockerfile, i.e., only the EXPOSE instructions after the last FROM instruction are considered.

NewShellLex creates a new ShellLex which uses escapeToken to escape quotes.

A KeyValue can be used to build ordered lists of key-value pairs.

ShellLex performs shell word splitting and variable expansion.