CalculatePackageSignatures computes the combined sha1 hash for all the files in the package this is equivalent to doing find <package> -type f -exec <hash tool> {} + | awk '{print $1}' | sort | <hash tool> on the package version directory.

NewPackageVersion function creates an instance of PackageVersion.

NewPackageVersionWithRoot function creates an instance of PackageVersion and defines a custom root.

NewSignedPackageVersion constructs a new SignedPackageVersion struct composed of the package version and signature.

ParsePackageVersions function parses string representation of revisions into structure.

PackageVersion represents a package version stored in the package-storage.

SignedPackageVersion represents a package version stored in the package-storage with a calculated signature.

PackageVersions is an array of PackageVersion.

SignedPackageVersions is an array of SignedPackageVersion.