package packfile import "gopkg.in/src-d/go-git.v4/plumbing" // ObjectToPack is a representation of an object that is going to be into a // pack file. type ObjectToPack struct { // The main object to pack, it could be any object, including deltas Object plumbing.EncodedObject // Base is the object that a delta is based on (it could be also another delta). // If the main object is not a delta, Base will be null Base *ObjectToPack // Original is the object that we can generate applying the delta to // Base, or the same object as EncodedObject in the case of a non-delta // object. Original plumbing.EncodedObject // Depth is the amount of deltas needed to resolve to obtain Original // (delta based on delta based on ...) Depth int } // newObjectToPack creates a correct ObjectToPack based on a non-delta object func newObjectToPack(o plumbing.EncodedObject) *ObjectToPack { return &ObjectToPack{ Object: o, Original: o, } } // newDeltaObjectToPack creates a correct ObjectToPack for a delta object, based on // his base (could be another delta), the delta target (in this case called original), // and the delta Object itself func newDeltaObjectToPack(base *ObjectToPack, original, delta plumbing.EncodedObject) *ObjectToPack { return &ObjectToPack{ Object: delta, Base: base, Original: original, Depth: base.Depth + 1, } } func (o *ObjectToPack) IsDelta() bool { if o.Base != nil { return true } return false } func (o *ObjectToPack) SetDelta(base *ObjectToPack, delta plumbing.EncodedObject) { o.Object = delta o.Base = base o.Depth = base.Depth + 1 }