mirror of https://github.com/mikefarah/yq.git
102 lines
2.7 KiB
Go
102 lines
2.7 KiB
Go
package yqlib
|
|
|
|
import (
|
|
"container/list"
|
|
|
|
yaml "gopkg.in/yaml.v3"
|
|
)
|
|
|
|
/*
|
|
[Mike: cat, Bob: dog]
|
|
[Thing: rabbit, peter: sam]
|
|
|
|
==> cross multiply
|
|
|
|
{Mike: cat, Thing: rabbit}
|
|
{Mike: cat, peter: sam}
|
|
...
|
|
*/
|
|
|
|
func collectObjectOperator(d *dataTreeNavigator, originalContext Context, expressionNode *ExpressionNode) (Context, error) {
|
|
log.Debugf("-- collectObjectOperation")
|
|
|
|
context := originalContext.WritableClone()
|
|
|
|
if context.MatchingNodes.Len() == 0 {
|
|
node := &yaml.Node{Kind: yaml.MappingNode, Tag: "!!map", Value: "{}"}
|
|
candidate := &CandidateNode{Node: node}
|
|
return context.SingleChildContext(candidate), nil
|
|
}
|
|
first := context.MatchingNodes.Front().Value.(*CandidateNode)
|
|
var rotated []*list.List = make([]*list.List, len(first.Node.Content))
|
|
|
|
for i := 0; i < len(first.Node.Content); i++ {
|
|
rotated[i] = list.New()
|
|
}
|
|
|
|
for el := context.MatchingNodes.Front(); el != nil; el = el.Next() {
|
|
candidateNode := el.Value.(*CandidateNode)
|
|
for i := 0; i < len(first.Node.Content); i++ {
|
|
rotated[i].PushBack(candidateNode.CreateChildInArray(i, candidateNode.Node.Content[i]))
|
|
}
|
|
}
|
|
|
|
newObject := list.New()
|
|
for i := 0; i < len(first.Node.Content); i++ {
|
|
additions, err := collect(d, context.ChildContext(list.New()), rotated[i])
|
|
if err != nil {
|
|
return Context{}, err
|
|
}
|
|
newObject.PushBackList(additions.MatchingNodes)
|
|
}
|
|
|
|
return context.ChildContext(newObject), nil
|
|
|
|
}
|
|
|
|
func collect(d *dataTreeNavigator, context Context, remainingMatches *list.List) (Context, error) {
|
|
if remainingMatches.Len() == 0 {
|
|
return context, nil
|
|
}
|
|
|
|
candidate := remainingMatches.Remove(remainingMatches.Front()).(*CandidateNode)
|
|
|
|
splatted, err := splat(d, context.SingleChildContext(candidate),
|
|
traversePreferences{DontFollowAlias: true, IncludeMapKeys: false})
|
|
|
|
for splatEl := splatted.MatchingNodes.Front(); splatEl != nil; splatEl = splatEl.Next() {
|
|
splatEl.Value.(*CandidateNode).Path = nil
|
|
}
|
|
|
|
if err != nil {
|
|
return Context{}, err
|
|
}
|
|
|
|
if context.MatchingNodes.Len() == 0 {
|
|
return collect(d, splatted, remainingMatches)
|
|
}
|
|
|
|
newAgg := list.New()
|
|
|
|
for el := context.MatchingNodes.Front(); el != nil; el = el.Next() {
|
|
aggCandidate := el.Value.(*CandidateNode)
|
|
for splatEl := splatted.MatchingNodes.Front(); splatEl != nil; splatEl = splatEl.Next() {
|
|
splatCandidate := splatEl.Value.(*CandidateNode)
|
|
newCandidate, err := aggCandidate.Copy()
|
|
if err != nil {
|
|
return Context{}, err
|
|
}
|
|
|
|
newCandidate.Path = nil
|
|
|
|
newCandidate, err = multiply(multiplyPreferences{AppendArrays: false})(d, context, newCandidate, splatCandidate)
|
|
if err != nil {
|
|
return Context{}, err
|
|
}
|
|
newAgg.PushBack(newCandidate)
|
|
}
|
|
}
|
|
return collect(d, context.ChildContext(newAgg), remainingMatches)
|
|
|
|
}
|