CreateArchive takes the given path and ArchiveOpts and archives it.

ExtraEntryDir just creates the Extra key as a directory entry.

VCSList is the list of VCS we recognize.

Archive is the resulting archive.

ArchiveOpts are the options for defining how the archive will be built.

VCS is a struct that explains how to get the file list for a given VCS.

VCSFilesFunc is the callback invoked to return the files in the VCS.

VCSMetadataFunc is the callback invoked to get arbitrary information about the current VCS.

VCSPreflightFunc is a function that runs before VCS detection to be configured by the user.