mirror of
https://github.com/mikefarah/yq.git
synced 2024-11-12 13:48:06 +00:00
82 lines
2.2 KiB
Go
82 lines
2.2 KiB
Go
package yqlib
|
|
|
|
import (
|
|
"fmt"
|
|
|
|
yaml "gopkg.in/yaml.v3"
|
|
)
|
|
|
|
func deleteChildOperator(d *dataTreeNavigator, context Context, expressionNode *ExpressionNode) (Context, error) {
|
|
contextToUse := context.Clone()
|
|
contextToUse.DontAutoCreate = true
|
|
nodesToDelete, err := d.GetMatchingNodes(contextToUse, expressionNode.Rhs)
|
|
|
|
if err != nil {
|
|
return Context{}, err
|
|
}
|
|
//need to iterate backwards to ensure correct indices when deleting multiple
|
|
for el := nodesToDelete.MatchingNodes.Back(); el != nil; el = el.Prev() {
|
|
candidate := el.Value.(*CandidateNode)
|
|
|
|
//problem: context may already be '.a' and then I pass in '.a.a2'.
|
|
// should pass in .a2.
|
|
if candidate.Parent == nil {
|
|
log.Info("Could not find parent of %v", candidate.GetKey())
|
|
return context, nil
|
|
}
|
|
|
|
parentNode := candidate.Parent.Node
|
|
childPath := candidate.Path[len(candidate.Path)-1]
|
|
|
|
if parentNode.Kind == yaml.MappingNode {
|
|
deleteFromMap(candidate.Parent, childPath)
|
|
} else if parentNode.Kind == yaml.SequenceNode {
|
|
deleteFromArray(candidate.Parent, childPath)
|
|
} else {
|
|
return Context{}, fmt.Errorf("Cannot delete nodes from parent of tag %v", parentNode.Tag)
|
|
}
|
|
}
|
|
return context, nil
|
|
}
|
|
|
|
func deleteFromMap(candidate *CandidateNode, childPath interface{}) {
|
|
log.Debug("deleteFromMap")
|
|
node := unwrapDoc(candidate.Node)
|
|
contents := node.Content
|
|
newContents := make([]*yaml.Node, 0)
|
|
|
|
for index := 0; index < len(contents); index = index + 2 {
|
|
key := contents[index]
|
|
value := contents[index+1]
|
|
|
|
childCandidate := candidate.CreateChild(key.Value, value)
|
|
|
|
shouldDelete := key.Value == childPath
|
|
|
|
log.Debugf("shouldDelete %v ? %v", childCandidate.GetKey(), shouldDelete)
|
|
|
|
if !shouldDelete {
|
|
newContents = append(newContents, key, value)
|
|
}
|
|
}
|
|
node.Content = newContents
|
|
}
|
|
|
|
func deleteFromArray(candidate *CandidateNode, childPath interface{}) {
|
|
log.Debug("deleteFromArray")
|
|
node := unwrapDoc(candidate.Node)
|
|
contents := node.Content
|
|
newContents := make([]*yaml.Node, 0)
|
|
|
|
for index := 0; index < len(contents); index = index + 1 {
|
|
value := contents[index]
|
|
|
|
shouldDelete := fmt.Sprintf("%v", index) == fmt.Sprintf("%v", childPath)
|
|
|
|
if !shouldDelete {
|
|
newContents = append(newContents, value)
|
|
}
|
|
}
|
|
node.Content = newContents
|
|
}
|