ConvertKVStringsToMap is from https://github.com/moby/moby/blob/v20.10.0-rc2/runconfig/opts/parse.go ConvertKVStringsToMap converts ["key=value"] to {"key":"value"}.

InStringSlice checks whether a string is inside a string slice.

ParseBoolOrAuto returns (nil, nil) if s is "auto" https://github.com/moby/buildkit/blob/v0.9.1/cmd/buildkitd/config.go#L35-L42.

ParseCSVMap parses a string like "foo=x,bar=y" into a map.

SliceToSet converts a slice of strings into a set.