Checksum retuns the SHA256 checksum of the provided reader.

Compare compares string versions of packages v1 to v2: -1 == v1 is less than v2 0 == v1 is equal to v2 1 == v1 is greater than v2.

ComparePriorityVersion compares (p1, v1) to (p2, v2) as priority-version tuples.

ContainsInt checks if a is in slice.

ContainsString checks if a is in slice.

Exec execs a script or binary on either Windows or Linux using the provided args.

ExtractPkgSpec pulls and unmarshals the package spec file from a reader.

MarshalPackageSpec encodes the given PkgSpec.

ParseVersion parses the string version into goospec.Version.

PkgNameSplit returns the PackageInfo from a package name.

ReadGooSpec unmarshalls and verifies a goospec file into the GooSpec struct.

ReadPackageSpec reads a PkgSpec from the given reader, which is expected to contain an uncompressed tar archive.

Run runs a command.

SortVersions sorts a list of goospec string versions.

SplitGCSUrl parses and splits a GCS URL returning if the URL belongs to a GCS object, and if so the bucket and object.

UnmarshalPackageSpec parses data and returns a PkgSpec, if it finds one.

WritePackageSpec takes a PkgSpec and writes it as a JSON file using the provided tar writer.

ExecFile contains info involved in running a script or binary file.

GooSpec is the build specification for a package.

PackageInfo describes the name arch and version of a package.

PkgSources is a list of includes, excludes and their target in the package.

PkgSpec is an individual package specification.

RepoSpec is the repository specification of a package.

Version contains the semver version as well as the GsVer.

Versions contains a list of goospec string versions.