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|
package dasel
import (
"strconv"
)
var ParentFunc = BasicFunction{
name: "parent",
runFn: func(c *Context, s *Step, args []string) (Values, error) {
if err := requireXOrLessArgs("parent", args, 1); err != nil {
return nil, err
}
levels := 1
if len(args) > 0 {
arg, err := strconv.Atoi(args[0])
if err != nil {
return nil, err
}
levels = arg
}
if levels < 1 {
levels = 1
}
input := s.inputs()
res := make(Values, 0)
getParent := func(v Value, levels int) (Value, bool) {
res := v
for i := 0; i < levels; i++ {
p := res.Metadata("parent")
if p == nil {
return res, false
}
if pv, ok := p.(Value); ok {
res = pv
} else {
return res, false
}
}
return res, true
}
for _, i := range input {
if pv, ok := getParent(i, levels); ok {
res = append(res, pv)
}
}
return res, nil
},
}
|
