Example #1
0
func diffStructs(w io.Writer, p types.Path, v1, v2 types.Struct) error {
	return diffOrdered(w, p, field, func(cc chan<- types.ValueChanged, sc <-chan struct{}) {
		v2.Diff(v1, cc, sc)
	},
		func(k types.Value) types.Value { return k },
		func(k types.Value) types.Value { return v1.Get(string(k.(types.String))) },
		func(k types.Value) types.Value { return v2.Get(string(k.(types.String))) },
	)
}
Example #2
0
func descendsFrom(commit types.Struct, currentHeadRef types.Ref, vr types.ValueReader) bool {
	// BFS because the common case is that the ancestor is only a step or two away
	ancestors := commit.Get(ParentsField).(types.Set)
	for !ancestors.Has(currentHeadRef) {
		if ancestors.Empty() {
			return false
		}
		ancestors = getAncestors(ancestors, vr)
	}
	return true
}
Example #3
0
func diffStructs(w io.Writer, p types.Path, v1, v2 types.Struct) {
	changeChan := make(chan types.ValueChanged)
	stopChan := make(chan struct{}, 1) // buffer size of 1, so this won't block if diff already finished

	defer stop(stopChan)
	go func() {
		v2.Diff(v1, changeChan, stopChan)
		close(changeChan)
	}()

	wroteHeader := false

	for change := range changeChan {
		fn := string(change.V.(types.String))
		switch change.ChangeType {
		case types.DiffChangeAdded:
			wroteHeader = writeHeader(w, wroteHeader, p)
			field(w, ADD, change.V, v2.Get(fn))
		case types.DiffChangeRemoved:
			wroteHeader = writeHeader(w, wroteHeader, p)
			field(w, DEL, change.V, v1.Get(fn))
		case types.DiffChangeModified:
			f1 := v1.Get(fn)
			f2 := v2.Get(fn)
			if shouldDescend(f1, f2) {
				diff(w, p.AddField(fn), types.String(fn), f1, f2)
			} else {
				wroteHeader = writeHeader(w, wroteHeader, p)
				field(w, DEL, change.V, f1)
				field(w, ADD, change.V, f2)
			}
		}
	}
	writeFooter(w, wroteHeader)
}
Example #4
0
func diffStructs(dq *diffQueue, w io.Writer, p types.Path, v1, v2 types.Struct) {
	changed := types.StructDiff(v1, v2)
	wroteHeader := false
	for _, field := range changed {
		f1 := v1.Get(field)
		f2 := v2.Get(field)
		if canCompare(f1, f2) {
			p1 := p.AddField(field)
			dq.PushBack(diffInfo{path: p1, key: types.String(field), v1: f1, v2: f2})
		} else {
			wroteHeader = writeHeader(w, wroteHeader, p)
			line(w, subPrefix, types.String(field), f1)
			line(w, addPrefix, types.String(field), f2)
		}
	}
}