ConvertKVStringsToMap converts ["key=value"] to {"key":"value"} Credit to https://github.com/docker/cli/blob/ebca1413117a3fcb81c89d6be226dcec74e5289f/opts/parse.go#L41.

ConvertKVStringsToMapWithNil converts ["key=value"] to {"key":"value"} but set unset keys to nil - meaning the ones with no "=" in them.

PrintInfo prints msg to console.

ReadDockerIgnore reads a .dockerignore file in `contextDir` and returns the list of file patterns to ignore.

SetClipboard copies data to the shear plate of the system.