Copyright 2015 The appc Authors Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License.

ExtractImage will extract the contents of the image at path to the directory at dst.

GetManifest will read in the manifest from the untarred ACI stored at acipath.

ModifyManifest will read in the manifest from the untarred ACI stored at acipath, run the fn function (which is intended to modify the manifest), and then write the resulting manifest back to the file it was read from.

PrintManifest will print the given manifest to stdout, optionally inserting whitespace to make it more human readable.

RmAndMkdir will remove anything at path if it exists, and then create a directory at path.