func diffSets(w io.Writer, p types.Path, v1, v2 types.Set) {
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 {
wroteHeader = writeHeader(w, wroteHeader, p)
switch change.ChangeType {
case types.DiffChangeAdded:
line(w, ADD, nil, change.V)
case types.DiffChangeRemoved:
line(w, DEL, nil, change.V)
default:
panic("unknown change type")
}
}
writeFooter(w, wroteHeader)
}
func diffSets(dq *diffQueue, w io.Writer, p types.Path, v1, v2 types.Set) {
wroteHeader := false
added, removed := v2.Diff(v1)
if len(added) == 1 && len(removed) == 1 && canCompare(added[0], removed[0]) {
p1 := p.AddField(added[0].Hash().String())
dq.PushBack(diffInfo{path: p1, key: types.String(""), v1: removed[0], v2: added[0]})
} else {
for _, value := range removed {
wroteHeader = writeHeader(w, wroteHeader, p)
line(w, subPrefix, nil, value)
}
for _, value := range added {
wroteHeader = writeHeader(w, wroteHeader, p)
line(w, addPrefix, nil, value)
}
}
writeFooter(w, wroteHeader)
return
}
func diffSummarySet(ch chan<- diffSummaryProgress, v1, v2 types.Set) {
diffSummaryValueChanged(ch, v1.Len(), v2.Len(), func(changeChan chan<- types.ValueChanged, stopChan <-chan struct{}) {
v2.Diff(v1, changeChan, stopChan)
})
}