mirror of
https://github.com/mikefarah/yq.git
synced 2024-11-14 15:18:06 +00:00
74 lines
2.5 KiB
Go
74 lines
2.5 KiB
Go
package yqlib
|
|
|
|
import (
|
|
yaml "gopkg.in/yaml.v3"
|
|
)
|
|
|
|
func DeleteNavigationStrategy(pathElementToDelete interface{}) NavigationStrategy {
|
|
parser := NewPathParser()
|
|
return &NavigationStrategyImpl{
|
|
visitedNodes: []*NodeContext{},
|
|
pathParser: parser,
|
|
followAlias: func(nodeContext NodeContext) bool {
|
|
return false
|
|
},
|
|
shouldOnlyDeeplyVisitLeaves: func(nodeContext NodeContext) bool {
|
|
return false
|
|
},
|
|
visit: func(nodeContext NodeContext) error {
|
|
node := nodeContext.Node
|
|
log.Debug("need to find and delete %v in here (%v)", pathElementToDelete, pathStackToString(nodeContext.PathStack))
|
|
DebugNode(node)
|
|
if node.Kind == yaml.SequenceNode {
|
|
newContent := deleteFromArray(parser, node.Content, nodeContext.PathStack, pathElementToDelete)
|
|
node.Content = newContent
|
|
} else if node.Kind == yaml.MappingNode {
|
|
node.Content = deleteFromMap(parser, node.Content, nodeContext.PathStack, pathElementToDelete)
|
|
}
|
|
return nil
|
|
},
|
|
}
|
|
}
|
|
func deleteFromMap(pathParser PathParser, contents []*yaml.Node, pathStack []interface{}, pathElementToDelete interface{}) []*yaml.Node {
|
|
newContents := make([]*yaml.Node, 0)
|
|
for index := 0; index < len(contents); index = index + 2 {
|
|
keyNode := contents[index]
|
|
valueNode := contents[index+1]
|
|
if !pathParser.MatchesNextPathElement(NewNodeContext(keyNode, pathElementToDelete, make([]interface{}, 0), pathStack), keyNode.Value) {
|
|
log.Debug("adding node %v", keyNode.Value)
|
|
newContents = append(newContents, keyNode, valueNode)
|
|
} else {
|
|
log.Debug("skipping node %v", keyNode.Value)
|
|
}
|
|
}
|
|
return newContents
|
|
}
|
|
|
|
func deleteFromArray(pathParser PathParser, content []*yaml.Node, pathStack []interface{}, pathElementToDelete interface{}) []*yaml.Node {
|
|
|
|
switch pathElementToDelete := pathElementToDelete.(type) {
|
|
case int64:
|
|
return deleteIndexInArray(content, pathElementToDelete)
|
|
default:
|
|
log.Debug("%v is not a numeric index, finding matching patterns", pathElementToDelete)
|
|
var newArray = make([]*yaml.Node, 0)
|
|
|
|
for _, childValue := range content {
|
|
if !pathParser.MatchesNextPathElement(NewNodeContext(childValue, pathElementToDelete, make([]interface{}, 0), pathStack), childValue.Value) {
|
|
newArray = append(newArray, childValue)
|
|
}
|
|
}
|
|
return newArray
|
|
}
|
|
|
|
}
|
|
|
|
func deleteIndexInArray(content []*yaml.Node, index int64) []*yaml.Node {
|
|
log.Debug("deleting index %v in array", index)
|
|
if index >= int64(len(content)) {
|
|
log.Debug("index %v is greater than content length %v", index, len(content))
|
|
return content
|
|
}
|
|
return append(content[:index], content[index+1:]...)
|
|
}
|