Method ByKey

deb/package_collection.go:53–109

ByKey find package in DB by its key

(key []byte)

// ByKey find package in DB by its key
func (collection *PackageCollection) ByKey(key []byte) (*Package, error) {
	encoded, err := collection.db.Get(key)
	if err != nil {
		return nil, err
	}

	p := &Package{}

	if len(encoded) > 2 && (encoded[0] != 0xc1 || encoded[1] != 0x1) {
		oldp := &oldPackage{}

		decoder := codec.NewDecoderBytes(encoded, collection.codecHandle)
		err = decoder.Decode(oldp)
		if err != nil {
			return nil, err
		}

		p.Name = oldp.Name
		p.Version = oldp.Version
		p.Architecture = oldp.Architecture
		p.IsSource = oldp.IsSource
		p.SourceArchitecture = oldp.SourceArchitecture
		p.Source = oldp.Source
		p.Provides = oldp.Provides

		p.deps = &PackageDependencies{
			Depends:           oldp.Depends,
			BuildDepends:      oldp.BuildDepends,
			BuildDependsInDep: oldp.BuildDependsInDep,
			PreDepends:        oldp.PreDepends,
			Suggests:          oldp.Suggests,
			Recommends:        oldp.Recommends,
		}

		p.extra = &oldp.Extra
		for i := range oldp.Files {
			oldp.Files[i].Filename = filepath.Base(oldp.Files[i].Filename)
		}
		p.UpdateFiles(PackageFiles(oldp.Files))

		// Save in new format
		err = collection.Update(p)
		if err != nil {
			return nil, err
		}
	} else {
		decoder := codec.NewDecoderBytes(encoded[2:], collection.codecHandle)
		err = decoder.Decode(p)
		if err != nil {
			return nil, err
		}
	}

	p.collection = collection

	return p, nil
}